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Home My WebLink About2742 STATE ST; 103; FPC2021-0024; PermitPERMIT REPORT City of Carlsbad Print Date: 05/12/2021 Job Address: 2742. STATE ST, # 103, CARLSBAD, CA 92008-1628 Permit Type: FIRE-Construction Commercial Work Class: Parcel U: . 2031811900 Track U: Valuation: $154,357.20 Lot U: Occupancy Group: Project U: #of Dwelling Units: Plan U: Bedrooms: Construction Type: Bathrooms: Orig. Plan Check U: Plan Check U: Permit No: FPC2021-0024 Status: Closed - Finaled Fixed Extinguishing Syste Applied: 02/18/2021 Issued: 04/26/2021 Finaled Close Out: 05/12/2021 Inspector: Final Inspection: Project Title: Description: LOFTY COFFEE CO -NEW WET CHEM KITCHEN HOOD SUPPRESSION SYSTEM (CAPTIVE-AIRE) Applicant: AZTEC FIRE & SAFETY LUIS GONZALEZ 8108 COMMERCIAL ST LA MESA, CA 91942-2926 (619) 832-5787 FPContractor: AZTEC FIRE AND SAFETY INC 8108 COMMERCIAL ST LA MESA, CA 91942-2926 (619) 464-5625 FEE. AMOUNT FIRE Hood & Duct Extinguishing System Initial Sys . $417.00 Total Fees: $417.00 Total Payments To Date: $417.00 Balance Due: $0.00 Fire Department Page 1 of 1 1635 Faraday Avenue, Carlsbad CA 92008-7314 1760-602-4665 1760-602-8561 f I www.carlsbadca.gov Model EWC (Electric Wet Chemical) Extinguishing System Installation, Operation, and Maintenance Manual EWC Extinguishing System Typical Hood End Cabinet Installation RECEIVING AND INSPECTION Check for any signs of damage upon receipt, and if found, report it immediately to the carrier. Check that all items are accounted for and free of damage. WARNING!! The Electric Wet Chemical (EWC) extinguishing system unit is to be installed, inspected, recharged and maintained in accordance with NFPA 17A, NFPA 96, and the National Fire Code of Canada as applicable. Installation and maintenance of the EWC extinguishing system must be performed in accordance with this manual by a factory trained and authorized distributor. Improper installation poses serious risk of injury due to electric shock and other potential hazards. Read this manual thoroughly before installing or servicing this equipment. ALWAYS disconnect power prior to working on equipment. Save these instructions. This document is the property of the owner of this equipment and is required for future maintenance. Leave this document with the owner when installation or service is complete. Part No. A0029342 UL EX27953 October 2020 Rev. 7 Table of Contents WARRANTY.........................................................................4 Certifications and Approvals.....................................................4 System Overview......................................................................4 COMPONENTS....................................................................5 CylinderAssembly....................................................................6 Cylinder and Actuator Bracket..................................................7 DischargeAdapter....................................................................7 Primary Actuator Kit (PAK) .......................................................8 Secondary Valve Actuator (SVA) and Hose .............................9 Supervisory Pressure Switch (Optional) ...................................9 Nozzles...................................................................................10 VentPlug ................................................................................10 Gas Shut-Off Valves...............................................................11 Electric Remote Manual Release ...........................................11 Firestat (Heat) Detector..........................................................11 INSTALLATION ..................................................................12 Cylinders.................................................................................12 VentPlug ................................................................................13 Primary and Secondary Actuator Installation..........................13 Primary Actuator Kit (PAK) .....................................................14 Secondary Valve Actuator......................................................14 Supervisory Pressure Switch..................................................15 Duct and Plenum Protection...................................................16 Plenum Protection ...............................................................16 Duct Protection....................................................................17 Ventilation Exhaust and Dampers ..........................................20 Electrostatic Precipitators (ESP).............................................20 Appliance Protection...............................................................21 Overlapping Appliance Protection .......................................21 Group Protection.....................................................................23 Overlapping Protection........................................................23 Overlapping Coverage - Group Protection ..........................23 Dedicated Appliance Protection ..........................................27 Upright Broiler/Salamander Protection ................................28 BroilerProtection ....................................................................29 Closed-Top Chain Broiler....................................................29 Open-Top Chain Broiler.......................................................29 Charcoal Charbroiler (Natural/Mesquite).............................30 Range Top with Shelf..........................................................31 Range with Obstruction .......................................................32 Range with Upright Obstruction...........................................33 Agent Distribution Piping ........................................................34 Single Cylinder Nozzle and Piping Parameters...................35 Dual Cylinder Nozzle and Piping Parameters .....................37 Nozzles................................................................................39 Gas Shut-Off Valves............................................................40 Fire Protection System Firestat ..............................................41 Non-Solid Fuel Appliances (Rated 450°F)...........................41 Non-Solid Fuel Appliances (Rated 600° F)...........................41 Fire Protection Manual Actuation Device................................43 TroubleInput Wiring ...............................................................43 BatteryBackup .......................................................................44 Power Supply Adjustment.......................................................44 Fire Protection System Printed Circuit Board ......................45 ELECTRICAL......................................................................48 Wire Ampacity Rating .............................................................49 Distance Limitations................................................................49 Fire Alarm Contacts................................................................49 FireGroup...............................................................................50 Fire Protection System Supervised Loops..............................51 OPERATION.......................................................................52 Test Mode Overview...............................................................52 Reset Overview ......................................................................53 TROUBLESHOOTING ........................................................55 Appliance Shutdown in Fault Conditions ...............................56 LocalAlarm Muting.............................................................56 TestMode...........................................................................56 Supervised Loop Wiring Troubleshooting..............................57 DIP Switch Settings............................................................58 Typical DIP Switch Arrangement........................................59 INSPECTION AND TEST....................................................60 Start-up/Test Procedure.........................................................60 Preparing System for Test..................................................60 Connecting Service Test Tank to the System.....................60 TestProcedure ...................................................................61 Disconnecting Service Tank/Re-arming System ................62 MAINTENANCE ..................................................................63 Every Month (System Owner)................................................63 Every Six Months (Authorized Distributor).............................64 Every Twelve-Years ............................................................... 64 AgentCylinders ..................................................................64 ActuationHoses..................................................................64 Conditional Maintenance .......................................................65 Replacing A Primary Actuation Kit......................................65 Replacing A Secondary Valve Actuator..............................65 POST-DISCHARGE MAINTENANCE.................................66 General Information...............................................................66 Appliance Cleanup.................................................................66 Cleaning Distribution System.................................................66 Cleaning Nozzles...................................................................66 Flushing the Distribution Pipe Network..................................67. Flushing Procedure with Spare/Test EWC Cylinder..............67 Flushing Procedure with an External Water Supply...............68 Cylinder Maintenance ............................................................68 Removinga Cylinder..............................................................69 Depressurizing a Cylinder...................................................70 Rebuilding the Valve/Siphon Tube Assembly.....................71 Charging Cylinders ................................................................72 Recharging an EWC Cylinder.............................................73 Charging a Spare/Test Cylinder .........................................74 Installing a Cylinder ............................................................74 Rechecking the System......................................................74 EWC SUPPRESSION SYSTEM PARTS ............................75 Start-Up and Maintenance Documentation............................76 JobInformation ......................................................................76 3 WARRANTY Model EWC extinguishing system is warranted to be free from defects in materials and workmanship, under normal use and service, for a period of 60-months from date of shipment. Warranty does not cover consumable products such as batteries, nitrogen, and nozzle caps. This warranty is null and void if: The system is not installed by a factory trained installer per the MANUFACTURER'S installation instructions shipped with the product. The equipment is not installed in accordance with Federal, State, Local codes, and regulations. The system is misused or neglected, or not maintained per the MANUFACTURER'S maintenance instructions. The system is not installed and operated within the limitations set forth in this manual. The invoice is not paid within the terms of the sales agreement. The MANUFACTURER shall not be liable for incidental and consequential losses and damages potentially attributable to malfunctioning equipment. Should any part of the equipment prove to be defective in material or workmanship within the 60-month warranty period, upon examination by the MANUFACTURER, such part will be repaired or replaced by MANUFACTURER at no charge. The BUYER shall pay all labor costs incurred in connection with such repair or replacement. Equipment shall not be returned without MANUFACTURER'S prior authorization, and all returned equipment shall be shipped by the BUYER, freight prepaid to a destination determined by the MANUFACTURER. NOTE: To receive warranty coverage for this product, copy and print out the "Start-Up and Maintenance Documentation" on page 76. Fill in all required information. Fax the page to 1-919-516-8710 or call 1-866-784-6900 for email information within thirty (30) days of purchase. Certifications and Approvals The Electric Wet Chemical fire suppression system is UL & ULC listed in accordance with UL300, UL1 254, ULCORD-C1254.6. The microprocessor-based control board is ETL Listed to UL Standard 864 and CAN/ULC-S527-1 1. The Electric Wet Chemical fire suppression system is acceptable for use in New York City, and is approved per FDNY COA #5870. System Overview The EWC extinguishing system provides fire protection for commercial cooking appliances and ventilation. The EWC extinguishing system is electrically released via a 24V DC solenoid valve. Extinguishing system units with electrical detection, activation, and control require the use of a Listed Control Panel, which has been found acceptable for releasing device service and which is compatible with the electrical actuators used on the extinguishing system. In addition, all electrical detectors, notification devices, and pull stations are required to be Listed and compatible with the Control Panel. 4 COMPONENTS The following section lists the major components used in the Model EWC extinguishing system. Figure 1 - Shipping/Test View Unit is shown in Shipping/Test Position Tank Straps Tank Mounting Bracket (Secured to cabinet with rivets) Cylinder Tanks (Up to four tanks may be installed depending on cabinet size.) Figure 2 - Exploded View Tank Mounting Brackets Secondary Supervisory Pressure Switch (Optional) Secondary Cylinder (Optional) Primary Cylinder Supervisory Pressure Switch (Optional) Primary Actuator Kit Secondary Actuator Hose (Optional) Secondary Valve Actuator (Optional) Primary Valve with Siphon Tube Secondary Valve with Siphon Tube (Optional) Tank straps not shown. 230 (1585 kPM 22 CL (1517 '1 (1 448 C/) CL 20 (1378 .9 (1309 18 CL (1240 Cylinder Assembly The EWC cylinder assembly (pIn 87-300001-001) uses a mild steel cylinder, conforming to 4BW250 DOT & 4BWM-17 TC specifications, and a nickel-plated brass valve with pressure indicator gauge. Each valve includes a Schrader port for connection to the primary actuator hose (for primary cylinders) or the optional supervisory pressure switch (for secondary cylinders). Each cylinder assembly is factory-filled with GAS liquid fire suppressant and pressurized to 200 PSIG (1379 kPA) at 70°F (21°C). Each cylinder supports up to 6 flow points. Figure 3 - Cylinder Tank Details Valve Actuation Interface Schrader Valve Pressure Gauge Discharge Outlet Tank to Actuator Distance = 23-1/4" Tank Diameter = 10" The pressure of a cylinder will vary with the ambient temperature, as detailed in Table 1. The gauge indicator (shown in Figure 3) should be in the acceptable green' range for a cylinder that is properly pressurized and within the listed operating temperature range. For a cylinder at the lowest listed operating temperature of 32°F (0°C), the pressure gauge should read approximately 185 psig (the lower end of the green range). For a cylinder at the highest listed operating temperature of 132°F (54.40C), the pressure gauge should read approximately 224 psig (the upper end of the green range). Table I - Cylinder Temperature Vs Pressure 30 40 50 60 70 80 90 100 110 120 130 (1) (4) (10) (15.6) (21) (27) (32) (38) (43.3) (49) (54.4) Temperature OF (°C) Cylinder and Actuator Bracket Each cylinder assembly is secured to a factory-installed cylinder bracket in the cabinet (pin EWC- UCTANKBRACKET). The cylinder is secured to the cylinder bracket via three (3) stainless steel straps. The cylinder bracket also includes a platform for securing a primary actuator kit or secondary valve actuator during shipping and maintenance procedures. Figure 4 - Cylinder and Actuator Bracket o 0 0 o 0 0 = o 0 0 o 0 0 = o 0 0 o 0 0 Discharge Adapter The discharge adapter (pin WK-283952-000) is used to connect the EWC cylinder valve outlet to the agent distribution pipe network. The 1/2-inch NPT internal thread of the discharge adapter outlet is connected to the supply line via an elbow and adapter. The discharge adapter uses an 0-ring (p/n WK-108019-000) at the valve port to eliminate leaks during discharge. Figure 5 - Discharge Adapter 7 Primary Actuator Kit (PAK) The Primary Actuator Kit (PAK) (p/n 87-300030-001) is installed on each primary cylinder assembly to pneumatically open the cylinder valve and provide actuation pressure for up to three secondary valve actuators. The PAK consists of a pneumatic actuator, 24V DC solenoid valve, check valve, primary actuator hose, and associated fittings. Upon automatic or manual system actuation, the control panel sends a momentary 24V DC release signal, opening the PAK solenoid. Pressure from the primary cylinder is passed through the solenoid and check valve, into the primary actuator (actuating the primary cylinder), and into the interconnected secondary valve actuators (actuating the secondary cylinders). The primary actuator has a 1/8" NPT inlet port for connection to the primary system cylinder, and a 1/8" NPT outlet port for connection to the secondary cylinder actuation line or actuation plug for single cylinder system. The primary actuator includes a piston with a spring-loaded locking pin which locks the piston in the discharge position, ensuring complete discharge of the cylinder contents. Figure 6 - Primary Actuator Kit Schrader Service Port Primary Actuator Hose (Stainless Steel) Solenoid Valve Optional Supervisory Pressure Switch Connection Primary Actuator Locking Pin Piston 11 Secondary Valve Actuator (SVA) and Hose A Secondary Valve Actuator (SVA) (p/n 87-120042-001) is installed on each secondary cylinder assembly to pneumatically open the cylinder valve(s). The SVA has 1/8" NPT inlet and outlet ports for connection to the system actuation line via the SVA hose. All secondary hoses require a 1" minimum bend radius. The SVA includes a spring-loaded locking pin that locks the actuator piston in the discharge position, ensuring complete discharge of the cylinder contents. Figure 7 - Secondary Valve Actuator Actuation Line Plug Locking Pin Piston Supervisory Pressure Switch (Optional) Secondary Valve Actuator Hose 7.5" hose option (p/n 87-120045-001) 24" hose option (p/n 87-120045-002) 60" hose option (p/n 87-120045-003) The optional primary and secondary supervisory pressure switch (p/n 87-300040-001) are pre-set to alarm at a cylinder pressure of —10% below the lowest operating system pressure of 185 psig (pressure at the lowest listed operation temperature of 320F). The supervisory pressure switch uses a diaphragm sensor to detect pressure changes. At the pre-determined set point, the unit actuates a SPDT snap-acting switch, converting a pressure signal into an electrical signal. The supervisory pressure switch can be used on primary and/or secondary cylinders. For primary cylinders, the pressure switch is mounted on the primary actuator kit. For secondary cylinders, the pressure switch is mounted on the Schrader fitting installed on the cylinder valve. Figure 8 - Supervisory Pressure Switch (Optional) Supervisory Pressure Switch (Primary) Wrench Flats Secondary Supervisory Pressure Switch Schrader Valve Port Nozzles There are various types of nozzles utilized in the EWC extinguishing system. The TEl nozzle (pin 87- 300021-001) is a 2 flow nozzle and is used for all zone protection. The ADP nozzle (p/n 87-300020-001) is a I flow nozzle and is used for plenum, duct, and dedicated appliance coverage (e.g., salamanders, upright broilers, chain broilers, and range with shelf). The R nozzle (p/n 87-120019-001) is a 1 flow nozzle and used on ranges with obstructions. The nozzles include a cap with replaceable, integrated foil seal. The foil seal prevents contamination from entering the pipe network and is designed to burst upon system discharge, allowing the agent to flow to the protected hazard area. Figure 9 - Nozzles Nozzle Cap Foil H H H H H ADP TF1 I R Vent Plug A vent plug (p/n 60-9196984-000) is installed in each agent distribution pipe network to prevent pressure build-up (caused by ambient temperature increases in the kitchen) from rupturing the foil seals on the nozzles. The vent plug utilizes a ball check to allow for relief of minor pressure increases while sealing closed under the higher pressure of a system discharge. The vent plug must be installed in a horizontal to vertically upright position. Figure 10 -Vent Plug 10 Gas Shut-Off Valves Electric gas shut-off valves are used to shut down the flow of fuel gas to the kitchen appliances upon actuation of the EWC suppression system. An energized solenoid is used to hold the gas valve in the open position. The solenoid closes the valve when de-energized via the output relay of the control panel. They are available in 120V AC and 24V DC, ranging from 3/4" to 3" pipe sizes. Table 2 - Electric Gas Valves Size P/N (ASCO) 3/4' 8214235 8214250 1-1/4" 8214265 1-1/2" 8214275 8214280 2-1/2' 8214290 8214240 Electric Remote Manual Release An electrically operated manual release that is listed must be used with the EWC extinguishing system. The electric remote manual release is used to actuate the EWC extinguishing system manually and must be properly located and supervised in accordance with NFPA 17A and NFPA 96. Firestat (Heat) Detector The Firestat (Fenwal Detect-a-Fire) is a listed electric thermal detector available in a variety of temperature settings and used to actuate the EWC extinguishing system automatically. When a Firestat senses a temperature higher than its setpoint, the Firestat contacts will close and energize the EWC suppression system via the control panel. Figure 11 - Firestat 11 Primary Cylinder Assembly Secondary Cylinder Assembly (Optional) INSTALLATION The EWC extinguishing system consists of pressurized agent storage cylinders, agent distribution piping, valve actuators, optional supervisory pressure switches, and agent discharge nozzles. All primary components and piping are factory-installed. Systems may be comprised of single or multiple cylinders depending on the size and configuration of the protected hazards. Cylinders can be piped independently, or manifolded. On two-cylinder systems, the cylinders will be in a manifold configuration. Refer to Figure 34 on page 34 for a two-cylinder system example. On three- cylinder systems, two cylinders will be in a manifold configuration and one independent. On four-cylinder systems, there will be two separate manifolds. In a fire condition or upon manual actuation, the EWC solenoid valve is opened, allowing pressure from the primary cylinder to flow to the primary and secondary cylinder valve actuators, opening the cylinder valves and discharging EWC liquid fire suppressant to the protected hazard areas. WARNING! System must be installed in conditioned space between 32°F and 130°F. Figure 12- Cylinder Assemblies Cylinders Cylinders are typically factory-installed, pressurized, and may be located anywhere within the hood end cabinet. Additional cylinders may be field installed, as needed, in the additional hood end or wall mount cabinet. The following examples show a dual cylinder system mounted to the right of the hood control unit. Each cylinder assembly is secured to a factory-installed cylinder bracket in the hood end cabinet. The cylinder is secured to the cylinder bracket via three (3) stainless steel straps. Figure 13 - Dual Cylinder Mounted in Cabinet Right side cabinet mount shown. I I I 1 II fl 12 Direction of I Pressure Flow $T WfffI4Jr. ØII9/,F4 Direction of + Pressure Flow of Pressure Flow Vent Plug The vent plug is factory-installed in the agent distribution supply line. The vent plug can be installed in the outlet or run off a tee in the distribution pipe network. The vent plug must be installed from a horizontal to vertically up position to ensure that it will open upon slight rises in pipe system pressure (e.g., due to ambient temperature fluctuation). The vent must not be installed below the horizontal position (e.g., pointing downward), or it may fail to relieve pressure when required. One vent plug is required for each distribution pipe network. Figure 14-Vent Plug Orientation Correct Orientation Incorrect Orientation NOTE: When improperly installed, gravity pulls the vent plug closed, preventing small pressure buildups from escaping. Primary and Secondary Actuator Installation WARNING! Do not complete PAK or secondary valve actuator installation until system test and commissioning are complete. The cylinder bracket includes a platform for securing a primary actuator kit or secondary valve actuator during shipping and maintenance procedures. The system actuators must be in the ship/test position for all commissioning and test procedures. Testing with actuators in place will result in discharge of the agent cylinders. Refer to "Start-up/Test Procedure" on page 60 for the testing and commissioning procedure. Figure 15 - PAK in Ship/Test and Installed Positions Ship/Test Position Installed Position Shipping Bolts 4. Mounting Bolts Nut 5. Primary Actuator Kit (In Transport Position) Valve Protection Plate 6. Supervisory Pressure Switch 13 Primary Actuator Kit (PAK) The primary actuator kit is mounted to the primary cylinder bracket during shipment and when testing the system. With the cylinders securely mounted and connected to the system piping, the primary actuator kit can be installed onto the primary cylinder for the final setup. Remove the valve protection plate and nuts. Retain the mounting bolts for installation of the PAK. Ensure the primary actuator piston is in the set position. Loosen the PAK shipping bolts from the top of the bracket, slide the unit back and lower it into position on the valve actuation flange. Insert the mounting bolts through the bottom of the valve flange into the PAK mounting holes and tighten securely. Connect the primary actuator hose to the Schrader valve port on the primary cylinder valve. The primary hose requires a 1.5" minimum bend radius. Figure 16-Actuator Valve Set Position Installation of the primary actuator hose is the FINAL step performed. Connecting this hose earlier may result in accidental system discharge. Refer to "Start-up/Test Procedure" on page-60 for the testing and commissioning procedure. The primary and secondary actuation hoses cannot be interchanged The primary actuation hose must be used with the PAK. Secondary Valve Actuator With the cylinders securely mounted and connected to the system pipirg, the secondary valve actuators (SVA) can be installed onto each of the secondary cylinder(s). Remove the valve protection plate and nuts. Retain the mounting bolts for installation of the SVA. Loosen the SVA shipping bolts from the top of the bracket, slide the unit back and lower it into position on the valve actuation flange. Insert the mounting bolts through the bottom of the valve flange into the SVA mounting holes and tighten securely. Ensure the secondary actuator hose is securely connected to the primary actuator output port and SVA input port. Key Limitations Total length of secondary actuation flex hose must not exceed 75" of flex hose, refer to "Secondary Valve Actuator (SVA) and Hose" on page 9 for secondary hose infornatio-'i. Secondary actuator hose(s) require 1" minimum bend radius. Maximum number of secondary valve actuators operating from the primary actuator unit is three (3). WARNING! The Valve Protection Plate must remain on the valve actuation port until the valve actuator is installed. The primary and secondary actuation hoses cannot be interchanged. The secondary actuation hosé (7", 24" or 60" length) must be used with secondary valve actuators. 14 Supervisory Pressure Switch A supervisory pressure switch will always be located on the primary cylinder by the Primary Actuator Kit (PAK). For secondary cylinders, this is an optional component that may be added on. For primary cylinders, the pressure switch is mounted on the primary actuator kit. For all secondary cylinders, the pressure switch is mounted on the Schrader fitting on the cylinder valve. Remove cap from applicable Schrader fitting. Thread the switch onto the Schrader using the brass wrench flats only. Figure 17 - Supervisory Pressure Switch Installation Supervisory Pressure Switch (Primary) 3. Supervisory Pressure Switch (optional) Wrench Flats 4. Schrader Valve Port Proof pressure (*) limits stated on the nameplate must never be exceeded, even by surges in the system. Occasional operation of unit up to proof pressure is acceptable (e.g., start-up, testing). Continuous operation should not exceed the designated over range pressure (**). *proof pressure - the maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage (e.g., start-up, testing). **Over Range Pressure - the maximum pressure to which a pressure sensor may be continuously subjected without causing damage and maintaining set point repeatability. NOTE: Pressure switches do not contain any field replaceable parts. Refer to applicable control panel manual for wiring of the supervisory pressure switch. Wire in accordance with local and national electrical codes. WA RN IN Disconnect all supply circuits before wiring pressure switch. Electrical ratings stated in literature and on nameplate must not be exceeded - overload on a switch can cause failure on the first cycle. The electrical rating is rated to 5A resistive and 3A inductive at 30V DC; gold flashing over silver contact for loads down to 1 mA at 24V DC. Wiring Color Code Terminals Red NO (NC under Pressure) Black NC (NO under Pressure) White Corn Supervisory pressure switches are connected in parallel to the control panel supervisory input. 15 Duct and Plenum Protection The EWC extinguishing system for duct and plenum coverage can be provided by independent EWC tanks and piping or integrated with the EWC tanks and piping used for protection of the appliances. Plenum Protection The ADP nozzle is used to protect plenum areas in both single bank and v-bank plenum configurations. A single ADP nozzle will protect up to a 4' wide x 10' long plenum section. For larger plenum areas, additional ADP nozzles are added as required, with each nozzle protecting no more than a 4' wide by 10' long plenum section. ADP nozzles may be installed pointing in the same direction, and/or at opposite ends of the plenum, pointing toward each other. ADP nozzles must not be installed back-to-back when protecting plenum areas. When positioned at the end of the plenum, nozzles must be installed from 0 to 6" into plenum. ADP nozzle locations for plenum protection are shown in Figure 18 and Figure 19. Figure 18 - Single Bank Filter Plenum SIDE VIEW TOP VIEW *Isolated Plenum Place for Clarity *Isolated Plenum Place for Clarity 10' 16 Figure 19 - Dual V-Bank Filter Plenum SIDE VIEW TOP VIEW *Isolated Plenum Place for Clarity *Isolated Plenum Place for Clarity 10' Duct Protection The ADP nozzle is used for the protection of exhaust ductwork and can protect any duct cross-section type (e.g. round, square, or rectangular). A sufficient quantity of ADP nozzles must be provided to ensure that no single nozzle coverage exceeds 50" in perimeter. A single ADP nozzle will protect a duct up to 50" perimeter (16" nominal diameter) and unlimited length. A minimum of 2 ADP nozzles is required for protection of ducts from 50" to 100" in perimeter and unlimited length. A minimum of 3 ADP nozzles is required for protection of ducts exceeding 100" perimeter (32" nominal diameter) and unlimited length. When using multiple nozzles (modular protection), the coverage area for each nozzle must not exceed 50" perimeter. Table 3 details the maximum rectangular duct configurations for one and two nozzle duct protection. Figure 20 - Nozzle Duct Protection Duct 3. Single Nozzle Hood 4. Dual Nozzle 17 Table 3 - Rectangular Duct Coverage Maximum Single Nozzle Duct Coverage (50 inches or less perimeter) Side A (Inches) Maximum Side B (Inches) 21" 4" 20.5" 4.5" 20" 5" 19.5" 5.5" 19" 6" 18.5" 6.5" 18" 7" 17.5" 7.5" 17" 8" 16.5" 8.5" 16" 9" 15.5" 9.5" 15" 10" 14.5" 10.5" 14" 11" 13.5" 11.5' 13" 12" 12.5" 12.5" Two ADP Nozzle Duct Coverage (50 to 100 inches perimeter) Side A (Inches) Maximum Side B (Inches) 44" 43" 42" 41" 40" 39" 38" 37" 36" 35" 34" 33" 16.8" 32" 17.2" 31" 17.7" 30" 18.1" 29" 18.5" 28" 18.9" 27" 19.3" 26" 19.7" 25" 19.9" 24" 20.2" 23" 20.5" 22" 20.8" 21" 21" 18 Nozzles must be installed from 0' to 6" into the protected area of the duct. When more than 1 ADP nozzle is required (modular protection), each nozzle must be located at the center of its protected module area. Additional nozzles are not required for changes in direction*. Duct obstructions and common ductwork must be protected in accordance with this manual, NFPA 17A and NFPA 96. ADP nozzle location and aim for duct protection are shown in Figure 21 and Figure 22. *When a change in direction occurs less than 6" from the duct entrance, the nozzle must be aimed as shown in Figure 21 and Figure 22. Figure 21 - Single Nozzle Placement (0-50" Perimeter Duct) Square Duct Round Duct Rectangular Duct 16' Nom. 404mm) 12.5" (318mm) — r~i~ Maxi I Vertical Duct Vertical/Horizontal Duct (0-152mm) 1 24" (51-102mm) ADP Nozzle Horizontal Duct Centerline (CL) Aim Point Vertical Duct Centerline (CL) Duct Entrance Rectangular Duct Width Rectangular Duct Length Duct perimeter up to and including 50" (1270mm). To determine the perimeter. 2(A) + 2(B) = 50" (1270mm). 19 Figure 22 - Dual Nozzle Placement (50-b C" Perimeter Duct) Square Duct Round Duct Rectangular Duct (o / 32" Nom _ . (809mm) _q HI' __ • Vertical Duct Vertical/Horizontal Duct ________ • 3-6" (0-152mrr) /J 2-4" - (51-102mm) ADP Nozzle Vertical Duct Centerline (CL) Aim Point Horizontal Duct Center'ine (CL) Duct Entrance 1/4 of dimension X 1/2 of dimension X 1/4 of Du:t Diameter 1/2 of Duct Diameter Ventilation Exhaust and Dampers The EWC extinguishing system can be used with the exhaust fan either on ci off when the system is discharged. It is reccmmended that the exhaust fan remain on at :he time of discharge to aid in the removal of smoke, gases, ard cther airborne materials from the hazard area in the event of a fire. A damper, if present, should be 1et open at sys:em discharge. However, if the damper is closed, the system designer must make sure that additional nozzles are required. Electrostatic Precipitators (ESP) An Electrostatic Precipitator (ESP) is designed to remove smoke and other airborne contaminants from the air flowing through the exhaust ductwork as a means of pollution control. Exhaust ductwork using ESPs requires ADP nozzle(s) upstream (prior to) and immeciately downstream of the ESP. The downstream nozzle(s) must be: located centrally in the ductwork and should be aimed at the middle of the ESP. Distribution piping to the ADP nozzles must not interfere with the function of the ESP unit. A Pollution Control Unit (PCU) and/or Electrostatic Precipitator (ESP) covered with this fire system can utilize up to 12 flow points per tank. 20 Appliance Protection The EWC system utilizes both overlapping and dedicated nozzle appliance coverage, depending on the type of cooking appliance(s) requiring protection. Overlapping appliance coverage allows a given area under the hood, defined as the hazard zone, to be protected by overlapping (TEl) nozzles. Nozzles are evenly spaced at the same height and alignment (front-to-back) relative to the hazard zone. Dedicated appliance protection utilizes an ADP nozzle (or nozzles) for protection of an individual appliance. Overlapping, dedicated appliance, plenum, and duct protection may be incorporated in a single pipe network on the EWC extinguishing system. The following sections detail the different nozzle coverage and placement parameters for overlapping and dedicated nozzle appliance protection methodologies. Overlapping Appliance Protection A single hazard zone utilizing overlapping coverage is 30' deep, by the total length of the cooking surface of the protected appliances. The cooking surfaces of all appliances protected by overlapping nozzles must be located within the defined hazard zones. Cooking appliances eligible for overlapping protection are outlined in Table 4 on page 22. The lowest and highest cooking surfaces will determine the height of the fire suppression nozzles. All overlapping nozzles must be mounted at the same height in a single hazard zone. Overlapping protection uses TEl nozzles only. For applications where overlapping protection cannot be used, such as an upright boiler, dedicated appliance protection must be used. Figure 23 - Overlapping Protection Option Overlapping Hazard Zone 24------- 24"- MFax F_ Max Min 40" Mm Max 45" Max I 12" Max 12" Max End of End of Hazard Hazard Zone Zone Cooking Appliances 21 Appliance Coverage Table 4 illustrates the maximum permitted cooking surface dimensions of each appliance that can be protected within a single overlapping zone. It is important to note that the cooking surface (area requiring protection) is different than the total appliance size. Table 4 - Maximum Permitted Cooking Surface Hazard Maximum Cooking Hazard Dimensions Fryer, maximum (3) (with or w/o Drip-board) 24 inches deep 34 inches length Fryer, minimum (3) (with or w/o Drip-board) 15 inches deep 14 inches length Tilt Skillet 24 inches deep 34 inches length Griddle 30 inches deep Unlimited length Range w/o Shelf/Obstruction 30 inches deep Unlimited length Gas/Electric Radiant Char-broiler 25-1/4 inches deep Unlimited length Lava/Pumice/Synthetic Rock Char-broiler (4) 25-1/4 inches deep Unlimited length Wok, maximum 24 inch diameter 8 inches deep Wok, minimum 11 inch diameter 3 inches deep Notes: All dimensions shown are based on overlapping protection. All dimensions and areas shown reference the cooking surface of the appliance, which is typically smaller than the outside dimensions of the appliance itself. For multi-vat fryers, no single fryer module (vat & drip board) can exceed the above limitations. Rear edge of Lava/Pumice/Synthetic Rock Char-broiler cooking surface must be a minimum of 3" from the back of hazard zone with the longest side of the appliance running left-to-right within the protected zone. Protection for tilt skillets and braising pans are to be based on the coverage parameters provided for fryer protection. Tilt skillets should be placed at the back of the hazard zone. Tilt skillet coverage must not interfere with the edge of the nozzle discharge pattern. All appliance hazard surfaces must be located within the hazard zone. Smaller appliances can be positioned anywhere in the zone (e.g., moved left, right, forward, or backward, provided the cooking hazard does not extend beyond the perimeter of the zone). When the depth of the appliance exceeds maximum cooking hazard dimensions, a second row of nozzle coverage should be added. Figure 23 illustrates the placement of nozzles for EWC overlapping protection. 22 Group Protection Overlapping protection provides coverage for a continuous hazard zone, with all TEl nozzles at consistent position (i.e. zone centerline), spacing, and height. When there is an area within a hazard zone for which continuous overlapping coverage is not applicable, the overlapping protection zone must be ended, and a new zone started for the new group of appliances. Examples where continuous protection is interrupted, include a counter, storage or prep area, appliance not requiring protection (e.g. enclosed oven) or an appliance requiring dedicated appliance coverage. Refer to page 24 through page 26 for details of group overlapping protection. Overlapping Protection For hazard zones that include one or more deep fat fryers, the overlapping nozzles must be spaced no more than 12" from each end of the appliance hazard zone and no more than 24" on center. All overlapping nozzles must be located at the centerline of the 30" hazard zone (front to back), at the same height, and aimed straight down. The nozzle height must be 40" to 45" above the appliance cooking surface, except for woks, where height is measured from the inside bottom of the wok. The nozzles must be positioned along the total hazard zone length to allow protection of each appliance in the hazard zone. Overlapping Coverage - Group Protection Overlapping protection provides coverage for a continuous hazard zone, with all nozzles at consistent position (i.e., zone centerline), spacing, and height. When there is an area within a hazard zone for which continuous overlapping coverage is not applicable, the overlapping protection zone must be ended, and a new zone started for the new group of appliances. Examples where continuous protection is interrupted, include a counter, storage or prep area, appliance not requiring protection (e.g., enclosed oven) or an appliance requiring dedicated appliance coverage. The examples on page 24 through page 26 provide details of group overlapping protection for interrupted zones. This section illustrates the methodology for defining when a new hazard zone is required, as described above. For specific overlapping coverage parameters (e.g., nozzle spacing and height requirements). 23 Group Protection Example I - Apliance line separated by unprotected space. End nozzles must be located 12" or less (horizontally; from the end of the hazad zone. Overlapping nozzles must be spaced no further than the maximum allowed interval 24" on center. Figure 24 - Example I Zone 1 Overlapping Nozzle Spacing C. Zone 2 Overlapping Nozzle Spacing Zone 1 Overlapping Nozzle Height D. Zone 2 Overlapping Nozzle Height NOTE: Overlapping (TFI) nozzle spacing and height requirements are based on the appliances protected for each individual zone, A TFI nozzle must always be located at the start and end of each zone, no more than 12" from the end of the hazard zone (edge of 1st/last cooking appliance surface). Refer to "Overlapping Appliance Protection" on page 21. 24 Example 2—Appliance line separated by appliance requiring dedicated appliance protection (e.g., Salamander, upright broiler, range with obstruction). Figure 25 - Example 2 Overlapping Hazard Zone 12" 12" 12" 12" Max Max Max Max © P.' ZONE 1 Zone 1 Overlapping Nozzle Spacing Zone 1 Overlapping Nozzle Height DEDICATED APPLIANCE ZONE 2 Zone 2 Overlapping Nozzle Spacing Zone 2 Overlapping Nozzle Height NOTE: Overlapping (TFI) nozzle spacing and height requirements are based on the appliances protected for each individual zone, A TFI nozzle must always be located at the start and end of each zone, no more than 12" from the end of the hazard zone (edge of 1st/last cooking appliance surface). Refer to "Overlapping Appliance Protection" on page 21. 25 Exampe 3 - Appliance lines with cveiapping nozzes at different heights Figure 26 -Example 3 Overlapping Hazard Zoie 12' 12' 12" 12 Max Max Max Max i-®-::)- fl©j -@-FL - II I _- ZONE I ZCNE2 Zoi9 1 Overlapping Nozzle Sacing C. Zone 2 Overlapping Nozzle Spacing Zoie 1 Overlapping Nozzle Height D. Zone 2 Ov€rlapping Nozzle Height NOTE: All hazard surfaces in a zone must be within 40-45" of the nozzles in that zone. NOTE: Overlapping (TFI) nozzle spacing and heig it requirements are based on the appliances protected for each individual zone, A TFI nozzle must always be located at the start and end of each zone, no more than 12" from the end of the hazard zone (edge of 1st/last cooking appliance surface). Refer to "Overlaping Appliance Protection" on page 21. 26 Dedicated Appliance Protection Dedicated appliance protection utilizes an ADP or R nozzle (or nozzles) for protection of individual appliances that do not meet the protection parameters for overlapping coverage. Dedicated appliance protection piping can be integrated with Overlapping Protection. Note that new overlapping protection zone must be started before and after any appliance requiring dedicated protection. Coverage parameters for appliances that require dedicated coverage are shown in the following table. Only those appliances included in the table are eligible for dedicated coverage: Table 5 - Dedicated Appliance Coverage Requirements Hazard Maximum Hazard ADP Nozzle R Nozzle Dimensions Qty Qty Upright/Salamander Broiler (1) 34 inches deep x 30 inches wide 1 0 Chain Broiler, Closed-top (1) 28 inches deep x 29 inches wide 1 0 Chain Broiler, Open-top (1) 28 inches deep x 29 inches wide 2 0 Charcoal Char-broiler (2) 24 inches deep x 24 inches 1 0 (NaturallMesquite) wide, max 6 inch fuel depth EWC Appliance with Shelf (3) 28 inches deep x 21 inches wide 1 0 EWC Appliance with Obstruction(4) 26 inches deep x 18 inches wide 0 1 Notes: Dimensions above for the Upright/Salamander Broiler and Chain broilers are referencing the inside broiler compartment. Dimensions above for the Natural/Mesquite Charcoal Char-broiler are referencing the metal housing containing the fuel source. Ranges may have an integral back-shelf that protrudes no more than 11 inches from the back edge of the cooking surface at a minimum height of 18 inches above the cooking surface. The cooking surface of the range is defined as the overall burner grate dimensions. Ranges may have an integral back-shelf or obstruction that protrudes more than 11 inches from the back edge of the cooking surface at a minimum height of 18 inches above the cooking surface. The cooking surface of the range is defined as the overall burner grate dimensions. Additional nozzles must be added for appliances that exceed the maximum hazard dimensions for the specified nozzle(s). The hazard area must be divided into virtual sections, such that no single section exceeds the maximum hazard dimensions for the specified nozzle(s). For example, a 24" D x 48" W charcoal char-broiler would require (2) ADP nozzles, each protecting a maximum 24" x 24" section of hazard. Dedicated appliance protection nozzle location details are provided in Figure 27 through Figure 33. 27 Cooking Appliance of artment Upright Broiler/Salamander Protection Install union in pipe leading to nozzle to allow for appliance removal and cleaning. ADP Nozzle mounted within top 4" of broiler compartment, near the front opening, and aimed through grill toward center of grease drain opening. Discharge shall not be obstructed by any structural part of the broiler. NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 27 - Broiler/Salamander Protection 28 FIRST NOZZLE:— CENTERED VERTICALLY IN OPENING ABOVE CHAIN FRONT VIEW SECOND NOZZLE: CENTERED OVER TOP OPENING OF BROILER 12 in. 305 mm) MIN. 48 in. 1219 mm) MAX. 1( NOZZLE CENTE VERTICALLY IN OPENING ABO CHAIN 29 SECOND NOZZLE: CENTERED OVER TOP OPENING OF BROILER 12 in. (305 mm) MIN. 48 in. (1219 mm) MAX. (1 ir (25 iT SECOND NOZZLE: ENTERED OVER OP OPENING OF IROILER 2 in. 305 mm) MIN. 8 in. 1219 mm) MAX. SIDE VIEW Broiler Protection Closed-Top Chain Broiler ADP Nozzle mounted at one corner of the chain broiler opening, vertically centered in the opening above the conveyor, aimed at the opposite back corner. Discharge shall not be obstructed by any structural part of the broiler. NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 28 - Closed-Top Chain Broiler NOZZLE CENTERED VERTICALLY IN OPENING ABOVE CHAIN Open-Top Chain Broiler Two ADP Nozzles are used to protect an open-top chain broiler. Nozzle 1: mounted at one corner of the chain broiler, vertically centered in the front opening above the conveyor, 1" back from the opening, aimed at the opposite back corner. Nozzle 2: centered overtop opening, mounted 12" to 48" above the top of the appliance. Discharge shall not be obstructed by any structural part of the broiler. NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 29 - Open-Top Chain Broiler Charcoal Charbroiler (Natural/Mesquite) ADP Nozzle mounted 24" minimum to 48" maximum from the midpoint of the cooking surface to the nozzle tip, at an angle of 450 or more from the horizontal, aimed at the midpoint of the cooking surface. Depth of the charcoal is limited to 6" maximum. Mesquite logs or wood are not acceptable. NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 30 - Charcoal Charbroiler FRONT VIEW 48 in. (1219 mm) MAX. 24 in. (61 AN ADP NOZZLE MAY BE LOCATED ANYWHERE WITHIN THE GRID DIAGONAL FROM AIM POINT 48 in. (1219 mm) MAX. M POINT: MIDPOINT HAZARD AREA 24 in. MAX. FUEL (610 mrn) SIDE VIEW AN ADP NOZZLE MAY BE LOCATED ANYWHERE WITHIN THE GRID NOZZLE LOCATION . 450 OR MORE FROM HORIZONTAL"\/ ' .Ej] AIM POINT: MIDPOINT OF ' HAZARD AREA _6 In. (152 mm) MAX. FUEL 24 In. (610 mm) MAX. APPLIANCE AREA 30 11 M Hi 1/ 40" 28" Max i-.--- per -i Nozzle Range Top with Shelf Coverage for range w/backshelf is 21" wide by 28" long (deep) per nozzle. The ADP nozzle must be positioned at the center (left-right) of the protected area. Additional nozzle(s) must be used for ranges exceeding 21" in width, provided no single nozzle coverage exceeds 21" max-width. Refer to Figure 31 for an example of modular coverage using 2 nozzles. All dimensions fixed unless otherwise noted (e.g., mm/max). NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 31 - Range Top with Shelf ADP Nozzle Shelf- 11" maximum distance from the rear edge of the cooking hazard to the front edge of the shelf. Distance from rear edge of cooking hazard to aim point (on the cooking surface) of the nozzle is 4.5". Top of Cooking Surface Nozzle aim point at centerline of protected module. 31 Range with Obstruction Coverage for range w/obstruction is 18" wide by 26" long (deep) per nozzle. The R nozzle must be positioned at the left and/or right edge and centered on the depth of the protected area. One R nozzle can provide protection for ranges 18 inches wide by 26 inches deep. Additional nozzle(s) must be used for ranges exceeding 18" in width, provided no single nozzle coverage exceeds 18" max-width. Refer to Figure 32 for an example of modular coverage using two nozzles. All dimensions fixed unless otherwise noted (e.g., mm/max). NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 32 - Range with Obstruction R Nozzle 3. 450 Elbow Shelf/obstruction that extends more than 11" 4. Top of Cooking Surface from the rear edge of the cooking hazard to the front edge of shelf/obstruction. Notes: When protecting ranges in accordance with these low proximity recommendations, the following minimum pipe requirements must be met to prevent splash: Minimum of 16' of pipe, I tee & 4 elbows prior to the first R nozzle protecting a low-proximity range. Minimum 6.5' of pipe after the tee. Minimum of 6 flows in the system. 32 Range with Upright Obstruction Salamander/Cheesemelters that are mounted over range(s) require dedicated coverage. Coverage for range w/upnght obstruction is 18' wide by 26' long (deep) per nozzle. The R nozzle must be positioned at the left to right edge and centered on the depth of the protected area. One R nozzle can provide protection for ranges 18 inches wide by 26 inches deep. Two R nozzles can provide protection for a range 36 inches wide by 26 inches deep. Additional nozzle(s) must be used for ranges exceeding 18" in width, provided no single nozzle coverage exceeds 18" max-width. Refer to Figure 33 for an example of modular coverage using two nozzles. Salamander/Cheesemelters should follow appliance coverage for "Upright Broiler! Salamander Protection" on page 28. All dimensions fixed unless otherwise noted (e.g., mm/max). NOTE: Appliance Drop Fittings Must Not be Sealed with Pipe Dope or Teflon Tape. Figure 33 - Range with Upright Obstruction 1. R Nozzle 3. 450 Elbow 2. Shelf/obstruction that extends more than 11" from the rear edge of the cooking hazard to the front edge of shelf/obstruction. ADP Nozzle, per Upright Broiler/Salamander protection Top of Cooking Surface Notes: When protecting ranges in accordance with these low proximity recommendations, the following minimum pipe requirements must be met to prevent splash: Minimum of 16' of pipe, 1 tee & 4 elbows prior to the first R nozzle protecting a low-proximity range. Minimum 6.5' of pipe after the tee. Minimum of 6 flows in the system. 33 Agent Distribution Piping The agent distribution piping shall be 3/8" NPT Schedule 40 black iron, chrome-plated or stainless-steel pipe and fittings. Fittings shall be minimum class 150. The pipe for the nozzle drops cannot be sleeved in steel but can be made from polished stainless steel, or polished chrome-plated black iron. Galvanize pipe or fittings must not be used. Pipe thread or compound shall not be used. Distribution piping can be run in single cylinder or dual cylinder, manifold configurations. Refer to page 35 for single cylinder configuration details. Refer to page 37 for dual cylinder configuration details. The distribution network consists of a supply line and all applicable branches depending on the protected hazards. Branch lines include the plenum branch, duct branch, overlapping nozzle appliance branch (TEl nozzle), and dedicated nozzle appliance branch (ADP). The supply line is defined as the run of all pipe and fittings from the tank outlet to the last branch line, including fittings at the start of all branch lines. All branch lines start at the outlet of the applicable supply line fitting and do not include the supply tee. A plenum branch is defined as the run of all pipe and fittings from the supply line tee outlet to the plenum nozzle(s). A duct branch is defined as the run of all pipe and fittings from the supply line tee outlet to the duct nozzle(s). An overlapping nozzle appliance branch is defined as the run of all pipe and fittings from the supply line tee outlet to the TEl nozzle. A dedicated nozzle appliance branch is defined as the run of all pipe and fittings from the supply line tee outlet to the ADP nozzle. Figure 34 - Distribution Piping Duct Branch Line Supply Piping Hood Penetrations Overlapping Branch Line Dedicated Appliance Branch Line Plenum Branch Line 34 Single Cylinder Nozzle and Piping Parameters A single cylinder supports up to 6 flow points. Table 6 - Single Cylinder System Configurations TFI Nozzle Qty ADP Nozzle Qty 3 0 2 2Max Table 7 - Agent Distribution Piping Limitations for Single Cylinder System Pipe Section Max Pipe Length (ft) Max Number of Elbows Supply line 40 10 Overlapping Nozzle Appliance 3.5 2 Branch (TEl) Dedicated Nozzle Appliance 5 3 Branch (ADP) Plenum Branch 3 2 Duct Branch 3 2 Notes: Tees allowed in supply line only, maximum of 4. Additional elbows are permitted on branch lines, provided linear pipe length is reduced by corresponding equivalent length (1.3 ft per 90° elbow, 0.6 ft per 45° elbow). For example: a 3/8" steel elbow has an equivalent length of 1.3 ft. An ADP appliance branch may use 4 elbows, provided the total linear pipe is reduced by 1.3 ft (e.g., from 5 ft to 3.7 ft). Additional pipe cannot be added in lieu of fittings, as pipe volume limits could be exceeded. Maximum 6 ft vertical rise of supply line above cylinder outlet. Maximum 2 ft vertical rise of duct or plenum branch above supply line. Maximum 6.75 ft linear pipe between two most remote branch tees on supply line. Minimum 7 ft pipe and 3 elbows before a range w/o shelf or fryer to prevent splash. Minimum of 7 ft pipe and 2 elbows before a wok to prevent splash. Furthermore, a total of 10 ft pipe, 6 elbows, and minimum of 4 flows are required in the complete pipe network. Minimum 7 ft pipe and 2 elbows before a range with shelf to prevent splash. Furthermore, a total of 10 ft of pipe, 6 elbows, and a minimum of 5 flows are required in the complete pipe network. 35 Table 8 - Single Cylinder with Additional ADP Nozzles (Recommended) Max Total Max Total Max Total Max Total TF Nozzle ADP Nozzle Max Total Max Supply Overlapping Appliance Max TotalOverlapping Appliance Combined Qty Qty System Pipe Line Pipe Branch Pipe Branch Pipe Branch Branch Branch Elbow Elbows Elbows 1 4 Max 50' 26.5' 3.5' 20' 2 8 10 0 6 Max 50' 20' 0 30' 0 10 10 Notes: The combined total linear pipe (supply, overlapping branches, and ADP nozzle branches) must not exceed 50'. Max Supply Line Pipe can be increased from the values above if the total combined overlapping and ADP branches are reduced by a corresponding amount. Individual branch limitations must be maintained per the ULJULC listed limits (e.g., max 5' pipe & max 3 elbows for a dedicated ADP nozzle branch). The notes from the UL/ULC listed single cylinder piping table must be followed (e.g., vertical rise, splash requirements). Duct or plenum branches may be substituted for dedicated ADP appliance branches per the above table, provided the individual branch limitations are maintained per the ULJULC listed limits (e.g., max 3' pipe & max 2 elbows for an individual duct/plenum branch). The R nozzle provides a wider spray angle than the ADP nozzle, the nozzles are identical in flow points and flow rate. Therefore, the R nozzle may be used as a substitute for the ADP nozzle for low- proximity range protection. 36 Dual Cylinder Nozzle and Piping Parameters A dual cylinder system supports up to 12 flow points. Dual cylinder can be piped in series or parallel with a maximum of 24' of pipe between cylinders. Table 9 - Dual Cylinder System Configurations TFI Nozzle Qty -ADP Nozzle Qty 6 0 5 2Max 4 4Max Table 10 - Agent Distribution Piping Limitations for Dual Cylinder System Pipe Section Max Pipe Length (ft) Max Number of Elbows Supply line 44 10 Overlapping Nozzle Appliance Branch (TF1) 3.5 2 Dedicated Nozzle Appliance Branch (ADP) 5 3 Plenum Branch 3 2 Duct Branch 3 2 Notes: Tees allowed in supply line only, maximum of 8. Additional elbows are permitted on branch lines, provided linear pipe length is reduced by corresponding equivalent length (1.3 ft per 900 elbow, 0.6 ft per 450 elbow). For example: a 3/8" steel elbow has an equivalent length of 1.3 ft. An ADP appliance branch may use 4 elbows, provided the total linear pipe is reduced by 1.3 ft (e.g., from 5 ft to 3.7 ft). Additional pipe cannot be added in lieu of fittings, as pipe volume limits could be exceeded. Maximum 6 ft vertical rise of supply line above cylinder outlet. Maximum 2 ft vertical rise of duct or plenum branch above supply line. Maximum 13.5 ft linear pipe between two most remote branch tees on supply line. Minimum 7 ft pipe and 3 elbows before a range w/o shelf or fryer to prevent splash. Minimum of 7 ft pipe and 2 elbows before a wok to prevent splash. Furthermore, a total of 10 ft pipe, 6 elbows, and minimum of 4 flows are required in the complete pipe network. Minimum 7 ft pipe and 2 elbows before a range with shelf to prevent splash. Furthermore, a total of 10 ft of pipe, 6 elbows, and a minimum of 5 flows are required in the complete pipe network. 37 Table 11 - Dual Cylinder with Additional ADP Nozzles (Recommended) Max Max Max Max Max Max Max TF ADP Total Supply Total Total Total Total Total Nozzle Nozzle System Line Overlapping Appliance Overlapping Appliance Combined Qty Qty Pipe Pipe Branch Branch Branch Branch Branch Pipe Pipe Elbow Elbows Elbows 3 6 Max 70' 29.5' 10.5' 30' 6 14 20 2 8 Max 70' 27' 7' 36' 4 16 20 1 10 Max 70' 21.5' 3.5' 45' 2 18 20 0 12 Max 70' 20' 0 50' 0 20 20 Notes: The combined total linear pipe (supply, overlapping branches, and ADP nozzle branches) must not exceed 70'. Max Supply Line Pipe can be increased from the values above if the total combined overlapping and ADP branches are reduced by a corresponding amount. Individual branch limitations must be maintained per the UL/ULC listed limits (e.g., max 5' pipe & max 3 elbows for a dedicated ADP nozzle branch). The notes from the UL/ULC listed dual cylinder piping table must be followed (e.g., vertical rise, splash requirements). Duct or plenum branches may be substituted for dedicated ADP appliance branches per the above table, provided the individual branch limitations are maintained per the UL/ULC listed limits (e.g., max 3' pipe & max 2 elbows for an individual duct/plenum branch). The R nozzle provides a wider spray angle than the ADP nozzle, the nozzles are identical in flow points and flow rate. Therefore, the R nozzle may be used as a substitute for the ADP nozzle for low- proximity range protection. 38 Nozzles Distribution piping and nozzles are factory-installed. Verify that the nozzles and distribution network are installed in accordance with the design and installation parameters for all protected hazards, as set forth in this manual. NOTE: The EWC extinguishing system design must be reviewed if any hazard changes have been made, including (but not limited to): appliance type, appliance sizes, appliance location, factory pre-piping or nozzles, plenum size or configuration, and duct size or configuration. Ensure nozzles are installed without Teflon tape or pipe compound. Ensure nozzles are securely installed. DO NOT OVERTIGHTEN. Ensure nozzle seals are properly oriented in the nozzle cap. The seal must be installed with the brass retaining ring (attached to the foil seal) facing towards the nozzle. Ensure nozzle caps and foil seals are installed on each nozzle and secure. Nozzle caps should be wrench-tightened 1/4 to 1/2 turn past hand-tight. NOTE: Do not over-tighten or foil seals could be damaged. Ensure all nozzle types, placement, and aim are in accordance with the limitations in this manual. Optional nozzle swivel adapters can be used to achieve proper aim on dedicated appliance protection nozzles only. Refer to Figure 9 on page 10 for details on nozzle(s). Gas Shut-Off Valves The electric gas valve is held open in the energized state, and closes when de-energized via the output relay of the control panel. A listed manual reset relay is required to ensure manual reset prior to fuel being restored in accordance to NFPAI7A. Gas valves are designed to shut off the flow of gas to the kitchen appliances in the event of fire system activation. Electric gas shutoff valves must be installed with an upstream strainer to prevent debris from prohibiting gas valve function. New pipe, properly reamed and cleaned of metal burrs, should be used. Proper care is needed to ensure that the gas flow is in the same direction as indicated on the gas valve and strainer. Do not over-tighten pipe connections. Apply pipe dope to the male threads only. If necessary, install a drip leg in the gas line in accordance with the Authority Having Jurisdiction (AHJ). 120V AC gas valves 3/4" -2" can be mounted with the solenoid in any position above horizontal. 120V AC gas valves 2-1/2" - 3" must be mounted with the solenoid vertical and upright. The pipe must be horizontal. All 24V DC gas valves must be mounted with the solenoid vertical and upright. The pipe must be horizontal. Proper clearance must be provided in order to service the strainers. A minimum of 4" clearance distance must be provided at the base of the strainer. Figure 35 - Electric Gas Valve DIM "F" Electric Gas Valve U FLOW 1 —)7'r~l i DIM C H DIM G _J DIMD DIM "B Strainer 4" Minimum Clearance Table 12 - Gas Valve Details Gas Valve Strainer Size DIM "A" DIM "B" DIM "C" DIM "D" DIM "F" DIM "G" 8214235 4417K64 3/4" 6-15/16" 5-15/16" 4-1/2" 11-15/16" 9-7/8" 8214250 4417K65 6-15/16" 5-15/16" 4-7/8" 5-3/16" 12-13/16" 10-11116" 8214265 4417K66 1-1/4" 7-5/8" 6-3/8" 5-1/8" 5-15/16" 13-1/2" 12-1/16" 8214275 4417K67 1-1/2" 7-5/8" 6-3/8" 5-3/4" 6-3/16" 14-1/8" 12-5/16" 8214280 4417K68 7-5/8" 6-3/8" 7-1/4" 7-13/16" 15-5/8" 13-15/16" 8214290 4417K69 2-1/2" 10-5/16" 8-1/16" 8-7/8" 9-7/8" 18-15/16" 18-5/8" 8214240 44171<71 10-5/16" 8-1/16" 10" 10-15/16" 20-1/16" 19-11/16" 40 Fire Protection System Firestat NOTE: There must be adequate clearance above the hood to access components. 18-inches of service clearance is recommended. The Firestat is device installed in the riser of the hood, at the duct connection, that measures temperature. The standard temperature setting is 360°F. Depending on heat produced by appliance, a higher rated temperature Firestat will be required. If a temperature higher than the setpoint is sensed, the Firestat contacts will close and energize the electrical control board. The fire system will activate, the system will run for a minimum of 15 minutes and then recheck the temperature. If the temperature is still higher than the setpoint, the process restarts immediately. The Firestat has 2 black wires and 2 white wires. These wires must be connected to the supervised loop. Use high-temperature wiring when installing Firestat components. High-temperature wire-nuts or terminal blocks must be used. There must be one sensor installed for every 12 feet of hood length. Multiple sensors are wired in parallel in the supervised loop. The Firestat may be installed on the opposite side of the quick seal for access in the duct. Non-Solid Fuel Appliances (Rated 450°F) Non-solid fuel appliances rated for 450°F will not require additional firestats, regardless of the configuration and length of ductwork. Non-Solid Fuel Appliances (Rated 600°F) Non-solid fuel appliances rated for 600°F will require downstream detection if the duct run contains any horizontal section over 25 feet in length. Downstream detection should be installed at the end of a horizontal section. Duct layouts that include less than 25 feet of horizontal ductwork will not require additional detection. NOTE: When additional Firestats are required, install in an accessible location near an access door, hood riser, or fan. The door will provide access to install, clean, and replace the Firestat when needed. If a PCU is equipped with electronic detection, PCU Firestats can serve as downstream detectors, if present. The temperature rating of the Firestat in the duct must always match the temperature rating of the Firestat in the riser. 41 Figure 36 - Firestat 10 Table 13 - Firestat Components Item Number Part Number Description 1 12-F28021-005360 Normally Open, Close on Rise @ 360°F 12-H28021-005-OT-600 Normally Open, Close on Rise @ 600°F 2 32-00002 1/2" NPT Quik Seal (Adapter Body) 3 32-00002 1/2" NPT Quik Seal (Gasket) 4 N/A Hood/Duct (External Surface) 5 N/A 1-1/8"— 1-1/4" Diameter Hole 6 32-00002 1/2" NPT Quik Seal (Lock Washer) 7 32-00002 1/2" NPT Quik Seal (Nut) 8 59361-1/2 Extension Ring 9 100-BW Extension Ring Cover 10 N/A 2 White Wires 11 N/A 2 Black Wires 42 Fire Protection Manual Actuation Device The push/pull station is a remote manual actuation device to activate the fire system. This remote manual actuation device (push/pull station) contains one set of normally open contacts and mounts to any standard single gang junction box. When the front button is pressed, the electrical connection to the fire system is completed, thus activating the fire system The remote manual actuation device (push/pull station) should be mounted at a point of egress and positioned at a height determined by the Authority Having Jurisdiction (AHJ). This position is usually 10 to 20 feet from hood and 42 to 48 inches above the floor. Multiple remote manual actuation devices (push/pull stations) are acceptable to use in the fire system and are wired in parallel per the electrical schematic. The remote manual actuation device (push/pull station) is reset by twisting the push- button clockwise until the internal latch is released. Figure 37 - Activation Device The clear protective cover must be installed to protect the device from accidental activations. This cover is provided as part of the manual actuation device. Below are the part numbers for the devices and replacement parts. Note: When connecting the wires to the push/pull station, do not twist the wire ends together. Insert each wire on the opposite side of the screw. Table 14 - Activation Device Part Numbers Part Description Part Number Push-Button with Clear Cover STI-SS2431 Push-Button with Clear Cover and Horn STI-SS2441 Replacement Clear Cover STI-COVER Blue Extension for Surface Mounted Push Stations SF-1 331 Blue Junction Box with Deep Back STI-KlT71101AB Normally Open Contact STI-10196 Normally Closed Contact STI-i 0198 Contact Housing Assembly SF-10197H Trouble Input Wiring Trouble contacts and supervision switches from each device should be connected to the trouble input of the building fire alarm panel to indicate a trouble condition. Figure 38 - Wiring Connection for Trouble Contact Building Fire Alarm CORE Control Panel Trouble Contact End of Line Device Building Fire Alarm -Trouble Input Wiring 43 Figure 40 - Power Supply Battery Backup Important!! The battery backup system requires that the batteries be changed every 2 years, from the date of fire system commissioning, maximum. Failure to do this will result in a void in product reliability and may cause severe damage to facility due to loss of fire protection. Figure 39 - Battery Backup The fire protection system contains a battery backup. During a power loss, the "Fire System Activated" light will flash 11 times between pauses indicating the power loss. The batteries must be replaced every 2 years, from the date of fire system commissioning. Part number PS-1270-F2, two are required. Although the batteries are hot-swappable, which means they can be replaced while there is input power to the control, for your safety, all sources of power must be removed from the control before replacing the batteries. To replace the batteries, unplug the battery cable from the Ji connector on the electrical board (PCBCORE). Then remove the retaining strap holding the batteries in place. Remove the batteries from the cabinet. Transfer the fuse and cable set from the old batteries to the new batteries being extremely careful to observe the RED and BLACK lead and terminal colors. Reinstall the batteries in the cabinet and reconnect the battery plug to Ji. The batteries are lead-acid type and are recyclable; please dispose of the old batteries properly. During extended periods of inactivity where the fire protection system will be without AC power for more than 2 days, such as a shutdown or natural disaster, it is best to decommission the fire system by disconnecting the batteries. This will prevent any damage to the batteries through complete discharge. When the system becomes active again, commission the system by reconnecting the batteries and allow the batteries to charge for 48 hours. Power Supply Adjustment To properly charge the batteries, the power supply must be adjusted to output 27.5V DC. This can be checked with an accurate digital voltmeter placed across Terminals HID and N1D. To adjust the output voltage, place a small flat-bladed screwdriver into the yellow dial. Turn the dial clockwise, this will increase the voltage. 44 Fire Protection System Printed Circuit Board The fire protection system printed circuit board (PCBCORE) is a microprocessor-based controller that provides all the necessary monitoring, timing, and supervision functions required for the reliable operation of the fire system. Under normal conditions, the "Fire System Activated" light is flashing one brief flash every 3 seconds, indicating the system is armed and ready. If a fault is detected anywhere in the system, an audible alarm will periodically sound, and the "Fire System Activated" light will flash a fault code to indicate the fault that was detected. This fault code consists of a series of flashes followed by a pause. Simply count the number of flashes between the pauses and refer to the chart below to find the cause of the fault. Any fault is extremely important and must be corrected and rectified immediately to ensure proper operation of the fire system. The connections for building fire panels are located at ALl and AL2 as dry contacts. Figure 41 - Printed Circuit Board 46 021 J2 432 1 WASH I IJ9.. C2 Cl 12345678 I'- I - -........ ri •Ji-.se H D• 10 Jcie .-Il-. 5555 ,I • I 04050190103 ________________ 4 3 2 1 ••••UU• ISE ALl AL2 tI' .-cii•gi-.. •Rl' I I CD _______ 12 IRE ALARM l!) 893 ''I • _I - 3' io,o1IJ L1 023 : R:384RM.I ••••••••• 1 - 5R32 L!1 ....... •••R D60- =_G R27 •j U4fJp : R. IA IAS C19,1 I •••••••••• I 36 I.II.I.-IflTI-.I.. lei* .. [IXIO.2725 IIj1.-rETE1-.I.. .. 025 020 86 214 25 03 C3 022 K1RII''02 7cJ- 1.1 I.i.l-Eit. I . . •. . u • • [. 03 CM l.11.-ljt.I., SU •P-J1S[.iJ [uuJ i. .ii. •I• •ii• •i .ii. .il. •II.II.I.-JjiL.i.. ••:[J:11111'uiuu cis -0 S. ll.lI.I.-Fj2JI-.l .. ..1 . lI.11.iT3l-.l...........l I 02J II!JI!I.-IEI-. I •........ I IIIIlIflhIG I 38 C32[00:1 IjUJ 0271 I••II••II••II••IIS•II••II••' .c::J-.C? I 1 U•J 1. 6I 3II 3II II • D15DI6(Dl? J ? I ... i 018 i'-892I;• I .I.........I:. II 512 813 t )R28 C2209 ..fJ-.Ro • Joe 23.cJ. PCBCORE .... _______I II •1 -c-. ••••SSSU SSSSSSUR2 •SSSSSS ••S• ____is ____ RIft ISSS•SS•SSIIPI5c • I 07L1 •IIfl• C24 R?L,JiU0b200 0 U4 U3 ....il.. __ J4 I -, I I 3) J3 •.• •S 5 m •••••••••••••••• ................1 •I• MOD BU S 45 Connector Descriptions Note: Some connections may not be used dependent on system configurations. Connector Ji contains battery pack connections for battery charging and monitoring. D 1 Pin 1 -Battery Positive Pin 2 - Battery Negative Connector J2 contains Supervised Sensor Loop 32 4 3 2 1 connections . FO* Pin 1 - Start Positive Loop Pin 3 - Finish Negative Loop Pin 2 - Start Negative Loop Pin 4— Finish Positive Loop Connector J3 contains Power Supply and Device connections I I................ 1F1 H Pin 1 and Pin 2 - Positive Input, Power Supply Pin 10—N/A Pin 3 and Pin 4 - Negative Input, Power Supply Pin 11 - Drive Output, Fire Relay Pin 5—Positive Output, Gas Valve Solenoid Pin 6 - Positive Output, Surfactant Pump Pin 12 -Drive Output, 100% Relay Pin 13 - Drive Output, Trouble Relay Pin 7 - Positive Output, Release Valve Solenoid Pin 14 - Drive Output, Wash Relay Pin 8 and Pin 9— 24V DC Input, Shutoff Valve Pin 15— Drive Output, Spare Relay Supervision Pin 16 - Drive Output, Auto-Man Relay Connector J4 contains Power Supply and Device connections I I................ Pin 1 - Positive Input, Power Supply Pin 8— Input, Pump Prime/Reset Push Button Pin 2 - Output, Panel Mounted Audible Alarm Pin 9— Input, Gas Cartridge/Pressure Switch Pin 3—Output, Panel Mounted LED Fire/Fault Pin 10 - Input, Fan Switch Indicator Pin 11 - Input, Gas Valve Reset Push Button Pin 4 - N/A Pin 12 - Input, Door/Tamper Switch Pin 5—Drive Output, Cooking Equipment Disable Pin 13— Input, Test Mode Relay Pin 14 - Modbus Network, Common Signal (C) Pin 6— Negative Input, Power Supply Pin 15— Modbus Network, Negative Signal (A) Pin 7— N/A Pin 16 - Modbus Network, Positive Signal (B) 46 Connector J5 and J6 is for RJ-45 connections 35 36 :• I Oak w. MODBUS These two connections are for the Modbus Network. This network may be used by non-fire system related equipment to monitor operating conditions of the electrical (PCBCORE) board. Connector J7 Interlock Network connections n U 0 -J ry IjJ U. - - Pin 1 - Interlock Network, Common Signal (C) Pin 3 - Interlock Network, Positive Signal (B) Pin 2 - Interlock Network, Negative Signal (A) Connector J8 Interlock Network connections J8 ... 1LJ Factory Use Only Connector J9 Building Fire Alarm connections for a set of normally open dry contacts. These are provided for signaling a building fire alarm panel if a 39 S S fire condition is present. L1 AL2 FIRE ALARM Pin 1 -Dry Contact Closure Pin 2 - Dry Contact Closure Connector J 1 contains Supervised Sensor Loop 10 connections Pin 1 - Start Positive Loop Pin 3 - Finish Negative Loop Pin 2.— Start Negative Loop Pin 4 - Finish Positive Loop 47 ELECTRICAL WARNING!! Disconnect power before installing or servicing control. High voltage electrical input is needed for this equipment. A qualified electrician should perform this work. Before connecting power to the control package, read and understand the entire section of this document. As-built wiring diagrams are furnished with each control package from the factory and are either attached to the door of the unit or provided with the paperwork packet. Electrical wiring and connections must be made in accordance with local ordinances and the National Electric Code, ANSI/NFPA70. Verify the voltage and phase of the power supply, and the wire amperage capacity is in accordance with the unit nameplate. ATTENTION: LOW-VOLTAGE DC OR SIGNALING WIRE SHOULD BE ROUTED IN SEPARATE CONDUIT FROM ALL AC VOLTAGE SOURCES. Always disconnect power before working on or near this equipment. Lock and tag the disconnect switch or breaker to prevent accidental power-up. There are multiple electrical connections required for this control. I20V AC should be wired to terminals HI and NI. If the hood is equipped with a separate light circuit, 120V AC should power this circuit per the as-built schematic. HI and NI should not be connected to a shunt trip breaker. Verify that the power source is compatible with the requirements of your equipment. The system wiring schematic identifies the proper phase and voltage of the equipment. Before connecting the control package to a power source, verify power source wiring is de-energized. Secure the power cable to prevent contact with sharp objects. Do not kink power cable and never allow the cable to come in contact with oil, grease, hot surfaces, or chemicals. Release solenoid cables must not come in contact with hood surfaces. If the control package is a wall-mount system, a duct mounted temperature sensor will need to be wired. The temperature sensor must be wired to terminal blocks, as indicated on the wiring schematic. If the system contains additional firestats, they must be wired into the supervised loop. If the control is a wall-mount system, the hood lights wiring will need to be wired to terminals "B" and "W." Verify connections on wiring schematic. Before powering up the system, make sure that the interior of the control package is free of loose debris or shipping materials. If any of the original internal wire supplied with the system must be replaced, it must be replaced with type THHN wire or equivalent. All field-supplied wire for the optional fire system release solenoid or firestat must be high temp wire rated for 842°F minimum (#44160106.FE9 White and #44160106.FE0 Black). The battery must be plugged into the connector labeled Ji on the electrical board (PCBCORE) after wiring is complete. All gas appliances under the hood must shut down in the event of an AC power loss. All electric appliances will shut down on building power loss. It is recommended to use Belden #6320UL, 18 Gauge, plenum-rated wire for the supervised loop that does not come in contact with the hood. It is recommended to use Belden #88760 for the fire system interlock network and CAT-5 for Modbus communications. All exterior wiring connections to the PCU must be run inside liquid tight conduit. This includes the supervised loop and airflow switch wiring. IMPORTANT!: The battery backup for the fire protection system produces output power even when main power is disconnected from system. When performing major electrical service to the control, the battery backup must be disconnected then reconnected before commissioning. 48 Building Fire Alarm Control Panel Fire Alarm Contact End of Line Device Alarm Input Wire Ampacity Rating The load current rating and the over-current protection for conductor types shall not exceed 15 amperes for 14 AWG, 20 amperes for 12 AWG, and 30 amperes for 10 AWG aluminum and copper-clad aluminum after any correction factors for ambient temperature and number of conductors have been applied. Table 15 - Copper Wire Ampacity @ 75°C Wire Size AWG Maximum Amps 14 15 12 20 10 30 8 50 6 65 4 85 Distance Limitations Wiring connections to remote fire protection system(s) must use shielded twisted pair wire. The maximum length of this connection is 1000 feet. Wire size is an important consideration when making the connections between the fire protection system control package and a gas valve. Refer to Table 16 for maximum wiring distance between the system and remote gas valve. Table 16-Wiring Maximum Distance Wire Gauge Distance (Feet) 12 1049 14 660 16 414 18 260 20 164 22 103 24 64 Fire Alarm Contacts The fire protection system is equipped with normally open contacts that can be connected to the premise Fire Alarm Control Panel (FACP) (terminals ALl and AL2). During a fire condition, the contacts will close and trigger the premise FACP to initiate a general fire alarm. Figure 42 - Fire Alarm Reference Fire Group Fire Groups are for the purpose of using multiple CORE controlled fire systems and grouping specific fire systems together. This will allow the user the ability to assign different zones for independent activation. In order to set a fire group, you will need to set the CORE board DIP switches to: Table 17 - Fire Group DIP Switch Position -WE i GroupNber Open Open 1 Closed Open 2 Open Closed 3 Closed Closed 4 Note: Every panel with matching fire group settings (DIP switches 6 and 7) will activate simultaneously in a fire condition. Figure 43 shows an example of different zones on separate fire groups, but still connected via the interlock network. In the example, when 2 Fire groups (01 and 02) are assigned on the CORE boards, and if a fire condition exists in any one group, it will NOT activate the other fire group although both are connected to the same interlock network. Fire Group 01 CORE board DIP switch setting will be set to: Switch 6 Open and Switch 7 Open. Fire Group 02 CORE board DIP switch setting will be set to: Switch 6 Closed and Switch 7 Open. Refer to "Typical DIP Switch Arrangement" on page 59 for setting multiple CORE controlled fire systems. Figure 43 - Fire Group Reference Fire Pipin Fire Fire Group I ntrol Interlock A, CB, CC Wired to - Master CORE Wired to Master CORE Wired to Master CORE 50 Fire Protection System Supervised Loops NOTE: There must be adequate clearance above the hood to access components. Service clearance of 18-inches is recommended. The supervised loops are integral to proper operation and activation of the Fire Protection System. All systems have two supervised loops; each loop consists of two conductors, one positive and one negative. One loop is dedicated to all sensors, while the other is dedicated to all manual actuation devices (push/pull stations). The supervised loop connections are located at the front edge of the hoods for accessibility. Connections beyond the hood, like the connections at the manual actuation device, must be made with a plenum-rated wire. It is recommended to use a two-conductor Belden 6320UL, 18 AWG, wire, or similar for these connections. Refer to Figure 44 for supervised loop details. Connections to the firestat will use two terminal blocks. One for an incoming loop and one for an outgoing loop. Flexible metallic conduit is used to route the wiring that connects the firestat to the remote loop junction box. Secure conduit to hood hat channel when possible. The system contains two circuit ceramic terminal blocks for connecting from one hood to the next. Figure 44 - Supervised Loop Connections Firestat Conduit Junction Box Ceramic Terminal Block For connections on or above the hood, use Type MG or MGT wiring with High-Temperature Terminal junction blocks. A Supervised Loop Connection kit is available to connect back to back or end to end hoods. This kit will come with the necessary hardware and wire. Table 18 - Supervised Loop Components Connection Kit Part Number Length Location SLPCON-03 3 Feet End to End Hoods SLPCON-05 5 Feet End to End Hoods SLPCON-10 10 Feet End to End and Back to Back Hoods SLPCON-1 5 15 Feet End to End and Back to Back Hoods SLPCON-20 20 Feet End to End and Back to Back Hoods High Temperature Supervised Loop Component Part Number Type MG Wire, White, 16AWG 441601 C6.FE9 Type MG Wire, Black, 16AWG 441601 C6.FEO Two Conductor High Temp Terminal Block 20M4174 51 OPERATION The EWC extinguishing system is electrically operated via the applicable fire alarm control panel. The system can be activated automatically via an electric thermal detector or manually via a remote manual actuator. The EWC extinguishing system is electrically operated via the PCBCORE control board. The system can be activated automatically via a Firestat or manually via a remote manual actuator. Since the EWC extinguishing system is electrically operated, the applicable fire alarm control panel requires AC input power with a battery backup system. Reference the applicable control panel manual for wiring and compatibility. When one of the system's Firestat(s) detectors senses a temperature hotter than its internal set-point (e.g., in the event of a hood fire), or when a remote manual actuation device (push/pull station) is pushed, an electric signal is sent to the tank-based fire protection release solenoid via the fire alarm control panel releasing circuit. The electric release solenoid is energized, allowing pressurization of the pneumatic actuator(s). The actuator's plunger(s) will depress into the tank valve body, releasing agent to flow to the hood duct, plenum, and appliance nozzles. When the fire extinguishing system is activated, the applicable fire alarm control panel simultaneously shuts down all gas and electric appliances under the protected hood(s), shuts down make-up air and/or exhaust where applicable, and activates the building fire alarm where applicable. A means of manual reset is required for shut-off devices to ensure manual reset prior to fuel or power being restored in accordance with NFPA 17 and NFPA 96. The electric gas shut-off valve is used in conjunction with a UL/ULC listed manual reset relay, refer to "Gas Shut-Off Valves" on page 40. Test Mode Overview The fire protection system has an integrated option for testing. This test mode, when active, will disable the release solenoid and prevent the fire extinguishing agent from spraying on the appliances. It will allow activation of the fire system, audible alarm, shunt trip breaker (if applicable), and shut down of appliances via gas valve reset relay. All additional PCBCORE controlled packages that are attached to the system must be in "Test Mode." This includes additional fire protection systems, Pollution Control Unit with CORE, and other hood-mounted CORE controlled protection systems. Please note that the appliances must be started before test mode is entered on any PCBCORE protection package for proper demonstration of this function. If the fire protection system is left in "Test Mode" for more than 15 minutes, the appliances will shut down. This is to prevent cooking operations from occurring while the appliances and ventilation system are not protected. 52 Reset Overview There are multiple actions required to reset the fire system. The following must be completed by a Certified Fire System Technician. The duct firestat must be cooled below its internal set point. The remote manual actuation device (push/pull station) must be reset by twisting the button clockwise until it resets. Press the "Push To Reset Fire System" button. Reset the pneumatic actuators (PKA, SVA), refer to "Disconnecting Service Tank/Re-arming System" on page 62. Note: The firestat must be cool, and the remote manual actuation device (push/pull station) must be reset for this button to work. The fire system must be re-commissioned per the manufacturer's recommendations and guidelines by an authorized fire system distributor and/or authorized service agent. After a fire, full inspection by a certified professional must be conducted prior to restarting the fire system. Figure 45 - Fire System Reset LED Indicator Alarm Speaker Panel Latch Reset Button Test Mode/Fire System Armed Switch 53 Appliance and electrical shut down is achieved via the applicable fire alarm control panel relay, in conjunction with UL/ULC listed enclosed industrial control equipment or magnetic contactors of appropriate rating. These must be used in conjunction with a UL/ULC listed manual reset relay, refer to Figure 46. All wiring is to be in accordance with the applicable manufacturer's instructions for the fire alarm control panel, gas shut-off valve, manual reset relay, and contractor supplied shut-off devices. All wiring must be in accordance to NFPA 70 and the Authority Having Jurisdiction (AHJ). When a building fire alarm system is present, the fire alarm control panel must be connected in accordance with the NFPA 72 such that the actuation of the EWC extinguishing system also activates the fire alarm. Reference the applicable control panel manual for wiring and compatibility. Figure 46 - Reset Relay Ground Neutral Hot Manual I I 10 100 Reset I.. )< Relay I I) Fire Alarm Control Panel NC C IN I Switch Line I I (supplied by others Contactor* (supplied Load by others) * UL/ULC listed enclosed industrial control equipment or magnetic switch of appropriate rating. Contacts closed when coil is energized. 54 TROUBLESHOOTING Table 19 lists out causes and corrective actions for possible problems with the system. Review this list prior to consulting manufacturer. Table 19 - Fire Protection System Troubleshooting Problem Potential Cause Corrective Action - Broken supply fan belt Replace fan belt. Exhaust Fan On and Supply Fan Fire system not armed Fire system distributor must arm will not Start fire system. Fire System Activated Light On Fire system is activated Verify fire is out and reset fire system. Audible Alarm is On Fire system is activated Verify fire is out and reset fire system. A fault code is flashing on the A fault has been detected in the Count the flashes and refer to "Fire System Activated" light Fire Protection System Table 20. Heat has activated the duct sensor. Remove heat source or let the system extinguish the fire. Duct sensor is hot Once heat source or problem is resolved, press reset button on the face of the electrical control Fire System will not turn off package. Reset remote push station once fire is out and press reset button Remote Manual Actuation Device on the face of the electrical control has been pushed package. Reset remote push station by twisting clockwise until reset. Gas Valve does not close Debris on gas valve seal Fully clean gas valve and strainer. 55 Appliance Shutdown in Fault Conditions The Fire Protection System is equipped to shut down the appliances if a fault condition is present. Table 20 shows which fault condition affects the appliances' fuel and power sources, alarm muting, and local trouble relay. Table 20 - Appliance Fault Conditions Number of Flashes Fault Condition Gas Valve Shut Down Shut Down Shunt Trip Breaker and LIDS Kill Switch Mute Local Alarm 4 Hour Rest Local Trouble Relay Local System Networked System Local System I Networked System Catastrophic Faults 2 Release Solenoid Pressure Switch x x x x x Auxiliary Fault x x x x x 5 Micro-controller Fault Critical Faults Supervised Loop Fault j [ Important Faults 8 Ground Fault x 10 Battery Voltage Low X x 11 AC Power Failure X"X 12 Door Tamper Switch 13 Test Mode x x x x 14 CORE Interlock x 15 Fault on Hood In Network X 16 Fault on PCU in Network X Local Alarm Muting Depressing the fire system reset button can mute the local alarm. This will disable the sounder for 4 hours under specific conditions. Table 20 shows which errors can be muted. It should be noted that the fault will not clear until the fault condition is corrected. Test Mode Test Mode allows the hood to be tested with operational appliances without discharging the system on the appliances. Once the appliances are started, test mode can be entered without the appliances shutting down for 15 minutes. However, once the fire system is activated, the shunt trip (electric appliances) and the gas valve will be locked out until test mode is deactivated. **During AC power failure, all gas appliances will be shut down. Electrical appliances will shut down on building power loss. 56 Supervised Loop Wiring Troubleshooting NOTE: Place the panel in test mode during diagnostic testing. Prior to troubleshooting, verify all CORE power supplies are set to 27.5 volts. Check all supervised loop connections. Verify wiring is properly connected and secure. If any of the "Normal Operating Voltages" are out of range, there is an issue with that loop or associated components/wiring. Normal Operating Voltages Problem Potential Cause Corrective Action Terminal 21 to CORE Power Supply (-) = 26.5V Open Supervised Loop Locate and repair Terminal 21 to Terminal 22 = 26.5V between Terminals 21 and faulty wiring in the Terminal 24 to Power Supply () = 24 21-24 supervised 26.5V loop. Terminal 24 to Ground = 1.8V Terminal 22 to CORE Power Locate and repair Supply (-) = OV Open Supervised Loop faulty wiring in the Terminal 23 to CORE Power between Terminals 22 and 22-23 supervised Supply () = 23 loop. Terminal 23 to Terminal 24 = 26.5V Supervised Loop Fault Terminal 101 to CORE Power Supply (-) = 26.5V Locate and repair Terminal 101 to Terminal 102 = Open Supervised Loop faulty wiring in the 26.5V Push-Station (Terminals 101-104 supervised Terminal 104 to CORE Power 101 and 104) loop. Supply (-) = 26.5V Terminal 104 to Ground = 1.8V Terminal 102 to CORE Power Supply (-) = OV Open Supervised Loop Locate and repair Terminal 103 to CORE Power Push-Station (Terminals faulty wiring in the Supply (-) = 102 and 103) 102-103 supervised Terminal 103 to Terminal 104 = loop. 26.5V Chassis Ground to CORE Power *24V DC CORE Power Locate and repair faulty wiring in the Supply (-) = 24.4V Supply (-) Wiring or 22-23 supervised Ground Fault Components loop. Chassis Ground to CORE Power **24V DC CORE Power Locate and repair faulty wiring in the Supply (+) = 2.7V Supply (+) wiring or 21-24 supervised Components loop. * Components that may cause this fault are: Gas Valve, Surfactant Pump, Water Solenoid(s), Release Solenoid(s). ** Components that may cause this fault are: 24V Relays, Trouble Relay (when energized), 24V LED Lights. NOTE: If an abnormal reading is present, disconnect potential components!wiring one at a time, while continuing to take readings, to pinpoint the source of the ground fault. 57 DIP Switch Settings When set from the factory, switches 1, 5, and 8 are in the Closed (On) positions. Switch 2, 3, 4, 6, 7 are in the Open (Off) position. These should be considered the default positions and should not be changed. Table 21 - DIP Switch Settings DIP Switch # Description - DIP Switch Position Interlock Network Address 1 2 3 4 Closed Open Open Open Open Closed Open Open 2 Closed Closed Open Open 3 Open Open Closed Open 4 Closed Open Closed Open 5 1 through 4 Open Closed Closed Open 6 Closed Closed Closed Open 7 Open Open Open Closed 8 Closed Open Open Closed 9 Open Closed Open Closed 10 Closed Closed Open Closed 11 Open Open Closed Closed 12 Closed Open Closed Closed 13 Open Closed Closed Closed 14 Closed Closed Closed Closed 15 Open Open Open Open This unit is not part of an interlock network Set this switch to Closed (On) if this unit has the highest address on the interlock network. Otherwise, this switch must be Open (Off) 6 7 Fire Group Number 6 and 7 Open Open 1 Fire Group Closed Open 2 Open Closed Closed Closed "I 8 Setting switch 8 to its Closed (On) position connects a 120 Ohm terminating resistor to the interlock network. This switch must be Closed if this unit is at either physical end of the interlock network cable. Otherwise, it must be Open (Off). Figure 47 - DIP Switch OPEN Each unit has a unique address based on the DIP switch 1-4 settings, 15 units max on a network. If address is 0 (all switches off), the unit will not accept or send any network traffic. The unit that has switch 5 set to on will be the "master" and will be in charge of polling all the units below it and waiting for a reply. The lack of 3 replies in a row will cause an "interlock network supervision fault." All units will be polled in a burst every 3 seconds. For all non-master units, the lack of being polled for 10 seconds will cause an "interlock network supervision fault." Any unit detecting a fire condition will broadcast the notification once every second for as long as the condition persists. When the Fire condition is cleared, 10 notifications will be sent, one every second. Any unit detecting a supervisory fault will broadcast the notification every 2 seconds until the condition is cleared. When the supervisory fault condition is cleared, 10 notifications will be sent, one every 2 seconds. 58 Typical DIP Switch Arrangement Only One Fire Protection System Panel on the network: Core Board # DIPI DIP2 D1P3 D1P4 DlP5 DlP6 DlP7 D1P8 #1 (Hood Master) Closed Open Open Open Closed Open Open Closed Two Fire Protection System (or CORE) Panels on the network: Core Board # DIP DIP DIP DIP DIP DIP DIP DIPS #1 (2nd Hood Slave) Closed Open Open Open Open Open Open Closed #2 (Hood Master) Open Closed Open Open Closed Open Open Closed Two Fire Protection System (or CORE) Panels on the network: Core Board # DIP DIP DIP DIP DIP DIP DIP7 DIP #1 (PCU Slave) Closed Open Open Open Open Open Open Closed #2 (Hood Master) Open Closed Open Open Closed Open Open Closed Three Fire Protection System (or CORE) Panels on the network: Core Board# DIP DIP DIP DIP DIP DIP DIP DIP #1 (2nd Hood Slave) Closed Open Open Open Open Open Open Closed #2 (PCU Slave) Open Closed Open Open Open Open Open Open #3 (Hood Master) Closed Closed Open Open Closed Open Open Closed Four Fire Protection System (or CORE) Panels on the network: Core Board # DIP DIP DIP DIP DIP DIP DIP DIP #1 (2nd Hood Slave) Closed Open Open Open Open Open Open Closed #2 (PCU Slave) Open Closed Open Open Open Open Open Open #3 (2nd PCU Slave) Closed Closed Open Open Open Open Open Open #4 (Hood Master) I Open Open I Closed I Open I Closed I Open I Open I Closed For additional configurations, refer to Table 21 for the electrical board (PCBCORE) DIP switch settings. The configurations above are shown with all electrical boards (PCBCORE) in the same Fire Group and may be configured differently, even if the control panels are on the same network. Every panel with matching fire group settings (DIP switches 6 and 7) will activate simultaneously in a fire condition. INSPECTION AND TEST Once installation has been completed, the EWC suppression system must be checked for proper installation and operation before it can be put into service. Start-up/Test Procedure Preparing System for Test Verify that all solenoid wires are secured and not touching hood. Place the control panel in test mode and ensure there are no supervision faults. Verify that the hood, duct & kitchen appliances have not changed (including type, dimensions & location) from the approved design. Verify that all cylinder discharge outlets are connected to the system piping, refer to Figure 3 on page 6. Verify that all cylinders are secured in their bracket(s). Verify that the vent plug is properly installed, refer to Figure 14 on page 13. Verify that a valve cap or optional supervisory pressure switch is installed on each secondary cylinder Schrader valve port. Verify that nozzle caps are installed, and foil seals are intact on all nozzles, refer to Figure 9 on page 10. Connecting Service Test Tank to the System Warning! If the PAK or SVAs are installed on the cylinder valve during the test, the cylinders will discharge. CAUTION!: Supplied Nitrogen Pressure Must be 25 psig Minimum to 200 psig Maximum. Refer to "COMPONENTS" on page 5 for component location and details. Disconnect the Primary Actuator Kit (PAK) stainless-steel hose from the primary cylinder valve. NOTE: When disconnecting or re-attaching primary hose, perform action quickly to minimize nitrogen loss. Verify that the Supervisory Pressure Switches have activated. Remove the PAK and any Secondary Valve Actuators (SVA) from their cylinder. Place PAK and SVAs in the ship/test position. Verify that the PAK and SVAs are securely mounted to the bracket. Refer to Figure 15 on page 13. Connect the stainless steel hose from the PAK assembly to a Nitrogen Service Cylinder via the 1/4" refrigerant test hose with 1/4" male thread union. Refer to Figure 48. Connect an additional 1/4" refrigerant test hose from the service port of the PAK assembly to the service port on the fire system distribution piping. Verify that the pistons in the PAK and SVAs are in the set position. Refer to Figure 16 on page 14. Verify all secondary actuator hoses are connected to the appropriate PAK or SVAs and are securely tightened. Verify the actuation line plug is installed in the last actuator on the system (last SVA or PAK if there are no secondary cylinders). Verify the plug is tight. Verify that the Supervisory Pressure Switch is installed securely on the PAK. Optional Feature: Secondary tanks may also have Supervisory Pressure Switches installed, verify all switches are properly secured to all secondary tanks. Verify the primary actuator solenoid is in the de-energized state. Figure 48 - PAK Connection to Test Hose 1/4" Refrigerant Test Hose 1 1/4" Male to Male Union 3 PAK Connection Hose IRIIIEIIJ&I Test Procedure Remove threaded nozzle caps. Remove hood filters. This will expose the Firestat(s) and the duct and plenum drops. Place testing balloons over all nozzles (appliance, duct, and plenum). Turn the Nitrogen Service Cylinder on to pressurize the system. CAUTION!: Supplied Nitrogen Pressure Must be 25 psig Minimum to 200 psig Maximum. Activation of the fire system may be initiated by two methods. Method 1- Use a portable heat source to apply heat to the duct Firestat in accordance with the manufacturer's instructions. Please refer to applicable detector manufacturer's manual. Heat should activate the fire system, and nitrogen from the test cylinder should activate all fire system actuators and begin to fill the service balloons. The use of a torch or flame is strictly prohibited. Method 2 - Lift the cover to the manual release station and "push" the manual release station button to activate the fire system. The manual release station can be re-set by twisting the push button in a clockwise motion. Verify that the control panel has activated and that the audible alarm is sounding. Ensure the PAK and all SVAs have actuated, with the piston in the fully extended and locked position. Verify that there are no leaks in the actuation line. Verify that the solenoid is in the energized state. Verify that all balloons are filled. Verify fuel to all appliances under the protected hood has shut off. Verify the makeup air supplied internally to the hood has shut off. Verify electric power shutdown. If all of the above is confirmed, reset the control panel per "Reset Overview" on page 53. Turn the Nitrogen Service Cylinder off. Re-install all nozzle seals and caps. Refer to "Nozzles" on page 39. 61 Disconnecting Service Tank/Re-arming System Relieve pressure in the primary actuator hose by slowly disconnecting the 1/4" refrigerant test hose from the Nitrogen Service Cylinder. Relieve pressure in the actuation line by slowly disconnecting the 1/4" refrigerant test hose from the PAK service port, as well as removing the 1/4" plug from the last fire system actuator. Disconnect the 1/4" refrigerant test hose from the fire system piping distribution port. Test the locking function of each PAK and SVA by pushing firmly on the piston. The piston should remain in the actuated (extended) position. Reset each PAK and any SVAs by depressing the spring-loaded pin on the piston and pushing the piston into the body of the actuator. NOTE: If a PAK or SVA fails to operate or cannot be properly reset, the unit must be replaced. Refer to "MAINTENANCE" on page 63 for replacement procedures. If all of the above is confirmed, secure the 1/4" plug on the last fire system actuator. Verify all of the actuation lines between the PAK and SVA(s) are secure and tight. Place Schrader Valve caps onto service ports and tighten. Install the PAK and any SVAs onto their respective cylinders. Refer to Figure 49. Check all cylinder gauges to confirm proper pressure, refer to Table I on page 6. Refer to "Charging Cylinders" on page 72 for charging cylinder details. Re-arm the control panel by placing the package in "armed mode." Connect the primary actuator hose securely to the Schrader valve port on the primary cylinder. Verify that the Supervisory Pressure Switches have reset per the control panel manual instructions. Figure 49 - Set Position PAK in Set Position SVA in Set Position 62 MAINTENANCE NOTE: It is the responsibility of the system installer to review system operation and owner obligations, and to provide any necessary literature to the owner at the time of system installation. This chapter contains the inspection and maintenance instructions for the EWC extinguishing system. These procedures must be performed in accordance with NFPA 17A and the National Fire Code of Canada as applicable. If problems arise, corrective action must be taken. Every Month (System Owner) Refer to the cylinder nameplate for proper inspection and maintenance instructions. Inspections are required to ascertain that the system is operable and that no changes have occurred, which would compromise the effectiveness of the system. A record of the monthly inspection is to be kept reflecting the date inspected, initials of the person performing the inspection, and any corrections required. If any discrepancies are noted while making this inspection, DO NOT CONTINUE OPERATING COOKING APPLIANCES. Immediately contact an authorized distributor for service and/or repair. The following procedure is to be performed by the Owner of the system on a monthly basis: Table 22 - Owner's Monthly Maintenance Checkbox Procedure Verify the extinguishing system is in its proper location Inspect all system components, agent distribution pipe, and conduit runs for physical damage and/or displacement. Inspect all nozzles to verify foil seal caps are in place and intact. Check for possible obstructions to the discharge of the wet chemical. Inspect each Cylinder and Valve Assembly. The indicator on the pressure gauge should be in the "green" range. The cylinder should not show evidence of corrosion or damage. Verify that manual release stations are unobstructed and in clear view and are labeled for intended use. Verify all tamper seals are intact, and the system is in a ready condition. Verify the inspection tag or certificate is in place and current. Verify the hood, duct, and protected cooking appliances have not been replaced, modified, or relocated. 63 Every Six Months (Authorized Distributor) All systems shall be inspected and serviced semi-annually by an authorized distributor. Place the control panel in test mode and ensure there are no supervision faults (refer to "Reset Overview" on page 53. Disconnect the primary actuator hose from primary cylinder. Verify that the Supervisory Pressure Switches have activated per the control panel manual instructions. Verify that the system design and installation are adequate to protect the hazard area and conform to the instructions in this manual. Check the following: All equipment requiring fire protection within the hazard area is protected. There have been no unauthorized alterations to the protected area or equipment, or to the wet chemical system. All Cylinder Mounting Brackets are securely fastened to the hood. All cylinders are properly pressurized. Refer to Table I for details. All nozzles are properly aimed, secured, and located within the proper distance from the protected equipment. Each nozzle should be clean and equipped with a foil seal cap. All piping joints and pipe supports are securely fastened. The pipe lengths, sizes, fittings, and material are as specified in this Manual. All wiring is in compliance with local codes. All field wiring is free of ground fault or short-circuit conditions. All system components and installation material are as specified in this manual. 5. Perform Start-up/Test Procedure (Refer to "INSPECTION AND TEST" on page 60). Every Twelve-Years The12-year maintenance is typically done in conjunction with the semi-annual maintenance. These procedures shall be performed in addition to the tests conducted at Semi-Annual intervals ("Every Six Months (Authorized Distributor)" on page 64). Agent Cylinders Each cylinder must be replaced or recharged every 12 years. For information on replacing cylinders, refer to "POST-DISCHARGE MAINTENANCE" on page 66. Actuation Hoses All actuation hoses must be hydrostatically tested (at 500 psi test pressure) or replaced every 12 years in accordance with NFPA 17A. Conditional Maintenance Replacing A Primary Actuation Kit If a PAK fails to operate during system testing, follow these steps to replace the PAK: Ensure the primary actuation hose is not connected to the primary cylinder or a nitrogen pressure supply system. Remove the supervisory pressure switch installed on the PAK. If applicable, disconnect the secondary actuation hose from the PAK. Loosen the PAK shipping bolts from the top of the bracket, slide the unit back and remove it from the bracket. Loosen the shipping bolts on the new PAK. Slide the unit into the bracket. Tighten the shipping bolts to ensure the PAK is held firmly but can still be slid back for installation to the cylinder valve. If applicable, remove the side plug on the PAK and install in the secondary actuation hose. Install the supervisory pressure switch onto the new PAK. Replacing A Secondary Valve Actuator If an SVA fails to operate during system testing, follow these steps to replace the SVA: Ensure the primary actuation hose is not connected to the primary cylinder or a nitrogen pressure supply system. Disconnect any secondary actuation hose connecting the SVA to the PAK or other SVAs. Loosen the SVA shipping bolts from the top of the bracket, slide the unit back and remove it from the bracket. Loosen the shipping bolts on the new SVA. Slide the unit into the bracket. Tighten the shipping bolts to ensure the SVA is held firmly but can still be slid back for installation to the cylinder valve. If applicable, remove the side plugs on the SVA and connect the SVA to any applicable secondary actuation hoses. 65 POST-DISCHARGE MAINTENANCE General Information Liquid Fire Suppressant, the Aqueous Potassium Carbonate (APC) base wet chemical used in the EWC extinguishing system, is non-toxic. However, any food or cooking oils that have been contaminated with wet chemical agent should be discarded. Refer to Safety Data Sheet (SDS). After any system discharge, it is best to clean the area as soon as it is safe to do so. Prolonged exposure of equipment to wet chemical can result in localized corrosion due to moisture in the air. Clean up should be completed within 24 hours of any system discharge. EWC cylinders need to be recharged or replaced every 12 years, and after any system discharge. Appliance Cleanup No unusual cleanup procedure is required. The reaction of the wet agent and the grease is one of saponification, and it produces a foam that can be wiped off. After the appliances have completely cooled, the residue from the discharge may be cleaned up using a wet cloth or sponge. Ensure that all fuel and electric power to the area has been shut down. Wear rubber gloves and eye protection while cleaning. If skin or eyes come in contact with the agent, flush thoroughly with water. WARNING! Do not disturb the foam until the cooking appliances, plenum, and duct have cooled sufficiently. Do not put water on hot grease as this will cause violent steaming and spattering. WARNING! APC wet agent is electrically conductive. To avoid electrical shock, de-energize all electric circuits to appliances, outlets, and wiring by disconnecting or turning off the electric power at the main fuse or circuit breaker box. Do not cleanup APC wet agent or touch electric appliances, outlets, power cords, or other wiring with electric power on. - - Cleaning Distribution System The EWC extinguishing system must have all discharge piping and nozzles flushed out with water after any discharge, as detailed in the following procedures. Cleaning Nozzles Remove all nozzles from the system. Inspect each nozzle & filter and remove any debris. Remove nozzle caps. Clean nozzle and strainer by flushing thoroughly with warm soapy water. Remove any foreign matter that could impede flow. Run water through the nozzle tip to ensure the orifice is not clogged. Thoroughly dry nozzles with dry air or nitrogen and set aside. Flushing the Distribution Pipe Network Prior to starting the flushing procedure, inspect the complete pipe network, and replace any pipe or fittings that have been subjected to direct flame or excessive heating. The following procedure describes flushing the pipe network with a spare/test cylinder. The pipe network can also be flushed utilizing an external water supply if available. Flushing Procedure with Spare/Test EWC Cylinder Check the pressure gauge on each cylinder to ensure it has been depressurized. Remove the vent plug, clean thoroughly with warm soapy water, and rinse with water. Dry thoroughly with dry air or nitrogen and set aside. Install a pipe plug in the vent plug tee. Disconnect the Primary Actuator Kit (PAK) stainless steel hose from the primary cylinder valve. Remove all cylinders from the system. Refer to "Removing a Cylinder" on page 69. Fill test cylinder(s) with water and pressurize. Refer to "Charging a Spare/Test Cylinder" on page 74. Install a test cylinder for each removed cylinder. Refer to "Installing a Cylinder" on page 74. Attach a suitable container (or hose to a container or other point of disposal) at each pipe outlet where a nozzle was installed to collect the water discharge. Install the PAK. Refer to "Primary Actuator Kit (PAK)" on page 14. Install the SVAs onto their respective cylinders. Refer to "Secondary Valve Actuator" on page 14. Re-arm the control panel by placing the package in "armed mode." Connect the primary actuator hose securely to the Schrader valve port on the primary cylinder. Activate the system using the manual release station. Remove containers or hoses from all nozzle location pipe outlets. Remove test cylinders. Connect a nitrogen service tank to system piping service port and blow out the discharge piping to remove all excess water. Disconnect the nitrogen service tank. Install new or recharged cylinders at each cylinder location. Refer to "Installing a Cylinder" on page 74. Re-install vent plug and tighten until snug. Do not over-tighten. Re-install nozzles, ensuring that all nozzles are in the correct location and properly aimed. Refer to "INSTALLATION" on page 12 for nozzle placement and aim directions. Complete the Start-up/Test Procedure. Refer to "Start-up/Test Procedure" on page 60. 67 Flushing Procedure with an External Water Supply Check the pressure gauge on each cylinder to ensure it has been depressurized. Remove the vent plug, clean thoroughly with warm soapy water, and rinse with water. Dry thoroughly with dry air or nitrogen and set aside. Disconnect the Primary Actuator Kit (PAK) stainless steel hose from the primary cylinder valve. Remove all cylinders from the system. Refer to "Removing a Cylinder" on page 69. Attach a suitable container (or hose to a container or other point of disposal) at each pipe outlet where a nozzle was installed, and at each cylinder inlet supply tee, to collect the water discharge. Connect the external clean water supply to the vent plug tee. Turn on the external water supply and run for one minute. Turn off external water supply. Remove containers or hoses from all collection points. Connect a nitrogen service tank to system piping service port and blow out the discharge piping to remove all excess water. Disconnect the nitrogen service tank. Install new or recharged cylinders at each cylinder location. Re-install vent plug. Re-install nozzles, ensuring that all nozzles are in the correct location and properly aimed. Refer to "Nozzles" on page 39 for nozzle placement and aim directions. Complete the Start-up/Test Procedure. Refer to "Start-up/Test Procedure" on page 60. Cylinder Maintenance EWC cylinders need to be recharged or replaced every 12 years, and after any system discharge. Never assume that a cylinder is unpressurized. Handle all cylinders as if they are pressurized until verified otherwise. Pressurized cylinders are extremely hazardous. When performing any cylinder maintenance procedure, the cylinder must be properly secured to a rigid structure capable of withstanding the full thrust that would result if the valve were to open inadvertently. Any time a cylinder assembly is unsecured, the anti-recoil plate must be installed on the valve outlet to provide a safe, controlled discharge in the event of accidental actuation. Failure to take proper precautions could result in death, serious personal injury and/or property damage. Removing a Cylinder Follow these steps when removing a cylinder: On the primary cylinder, disconnect the hose that connects the PAK with the cylinder. Remove the mounting bolts connecting the PAK to the primary cylinder. Lift the PAK up and place the PAK into the bracket in the ship/test position. Ensure it is supported by the shipping bolts. Install the Valve Protection Plate on top of the valve using the mounting bolts and 2 nuts. Refer to Figure 50. Loosen the bolts holding the valve to the discharge adapter and cylinder bracket. Loosen the bolts and remove the straps holding the cylinder in place. Pull the cylinder out from the bracket. Immediately install the Anti-recoil cap onto the valve discharge outlet. If secondary cylinders are present, remove the mounting bolts connecting the Secondary Actuators to the secondary cylinders. Lift the actuators up and place the actuators into the bracket. Ensure they are supported by the shipping bolts. Install the Valve Protection Plates on top of each secondary cylinder's valve using the mounting bolts and 2 nuts. Refer to Figure 50. For each secondary cylinder, perform the following before moving to the next secondary cylinder: Remove the Supervisory Pressure Switch from the cylinder valve if applicable. Loosen the bolts holding the valve to the discharge adapter and cylinder bracket. Loosen the bolts and remove the straps holding the cylinder in place. Pull the cylinder out from the bracket. Immediately install the Anti-recoil cap onto the valve discharge outlet. Refer to Figure 50. Figure 50 - Installing Valve Protection and Anti-Recoil Plate Valve Mgm Cylinder Assembly MW Depressurizing a Cylinder WARNING! Failure to correctly secure the hose could result in death, serious bodily injury, and/or property damage. Secure the cylinder in a chain vice, strap vice, or similar device. Prepare high-pressure discharge hose with a spare ADP or TEl nozzle on the end. Remove the anti-recoil plate from the cylinder outlet and install the discharge adapter. Install a ball valve onto the discharge adapter outlet. Refer to Figure 51. Attach the discharge hose with nozzle to the ball valve outlet. Attach the hose and discharge adapter assembly to the cylinder valve outlet. Insert the opposite end of the hose into an appropriate container for the wet chemical agent. Ensure that the hose is secure and will not come loose or separate from the container. Install a Secondary Valve Actuator (SVA) onto the cylinder valve. Connect the nitrogen service cylinder to one of the SVA ports, and an SVA plug in the opposite port. Ensure that the ball valve on the discharge assembly is in the closed position. Open the nitrogen supply, slowly increasing pressure until the SVA actuates, then shut off nitrogen supply. Carefully open the discharge valve. Monitor the discharge to prevent spillage and to ensure that the hose remains secure. Control the rate of discharge via the ball valve. If applicable, stop the flow and change containers. When the discharge is complete, turn off the nitrogen service cylinder supply. Check that the cylinder gauge indicates no pressure, and carefully depress the Schrader on the cylinder valve. Check for any possible flow/leakage of nitrogen. Slowly disconnect the nitrogen supply, relieving pressure from the SVA. Remove the SVA from the valve. Remove the valve/siphon tube assembly by unthreading the valve counterclockwise from the cylinder. Invert the cylinder to remove any residual wet chemical. Clean the cylinder and threads with warm soapy water and rinse with clean water. Blow out any residual moisture from the cylinder and threads with dry air or nitrogen. Refer to "Rebuilding the Valve/Siphon Tube Assembly" on page 71 for rebuild, if applicable. Figure 51 - Cylinder Discharge Assembly Cylinder Discharge Adapter Attach Discharge Hose to this End. 70 Rebuilding the Valve/Siphon Tube Assembly CAUTION! Only use new components when rebuilding a valve. All necessary replacement components are included in the Valve Rebuild Kit PIN 87-120067-001. Do not rebuild a valve with any other components (e.g used or aftermarket). When rebuilding the valve, use Valve Rebuild Kit PIN 87-120067-001. Inspect valve for signs of corrosion or damage before rebuilding. Remove the siphon tube by unthreading counter-clockwise from the valve. Secure the valve body. Depress the spring retainer and remove the retaining ring check (using bent snap-ring pliers, external). Refer to Figure 52. Slowly release the spring retainer and remove the check, retainer, and spring. Depress the top of the valve stem to remove it (the valve stem may fall out when the Retaining Ring Check is removed). Discard the removed components. Clean the valve and siphon tube, including internals, threads and sealing surfaces, by flushing thoroughly with warm soapy water. Rinse with clean water. Blow out any residual moisture with dry air or nitrogen, and ensure the valve is completely dry. Insert a new valve stem from the bottom of the valve. Place the valve onto a 3/4" pipe section, spare socket, or equivalent to keep valve stem from falling out. Insert a new valve spring onto the top of the valve stem. Place a new spring retainer onto the valve spring. Press the retainer down on the valve stem and install a new retaining ring check onto the valve stem using the bent tip snap-ring pliers. Ensure the retaining ring check is securely in place in the groove on the valve stem is completely closed. Apply a light coat of Parker Super 0-Lube on the entire surface of the valve-to-cylinder 0-ring and install the 0-ring on the valve body. Thread the siphon tube in the base of the valve until bottomed out. Figure 52 - Valve Assembly The rebuild kit includes: Retaining Ring Check - I Spring Retainer - I Valve Spring - I Valve Stem with 0-ring Installed - I Cylinder-to-Valve 0-rings - 2 (1 Spare) Tube of Parker Super 0-Lube - I RTAING RING c'lac*c SPG RTNER ' VMV SPG ' -PSSURUGAOG VALVE OCQY "CJER VALVE VALVE STEM BONDED SEAL 71 Charging Cylinders Do not attempt to recharge any cylinder without first checking for most recent hydrostatic test date. In accordance with DOT and IC regulations, the EWC wet chemical cylinder must not be recharged or transported without first being inspected internally and externally, and hydrostatically tested if more than 5 (five) years have elapsed since the date of the last hydrostatic test. Regardless of previous inspection dates, it is illegal to refill any pressurized container that leaks, which bulges, has defective safety devices, bears evidence of physical abuse, fire or heat damage, or detrimental rusting or corrosion, until it is properly repaired and re-qualified as specified in DOT and TC regulations. Hydrostatic testing must be performed by a licensed hydrostatic test facility. The following procedures assume the cylinder has been hydrostatically tested if applicable, has been cleaned and inspected, and the valve/siphon tube assembly has been rebuilt or is being replaced. The cylinder can be pressurized by attaching the nitrogen supply to either the cylinder valve outlet (utilizing the threaded discharge adapter) or the Schrader port on the cylinder valve (utilizing a 1/4" quick coupler flare fitting with Schrader valve core deflector). Refer to Figure 53 for recommended pressurizing connections and setup. Refer to Table 26 on page 75 for recommended service parts that are not included with the system. Figure 53 - EWC Cylinder Pressurization Set-up *Calibrated Regulator ~with Pressure Gauge -... 1-*ShutOff Adapter Valve Nitrogen Cylinder and Valve Assembly 1 Cylinder Valve * Optional Testing Components 72 Recharging an EWC Cylinder WARNING! Do not use any suppressing agent other than Liquid Fire Suppressant when refilling EWC cylinders. Failure to use the correct agent could result in death, serious personal injury and/or property damage. Secure the cylinder in a chain vice, strap vice, or similar. Ensure the cylinder has been hydrostatically tested, if applicable, and has been cleaned and inspected. Fill the cylinder with Liquid Fire Suppressant recharge P/N 87-300101-001. The EWC recharge is factory filled to the correct quantity for refill. Ensure the complete contents of the refill are used. Re-install a new or rebuilt valve/siphon tube assembly onto the cylinder and torque to 25 ft/lb. Refer to "Rebuilding the Valve/Siphon Tube Assembly" on page 71. Connect the external nitrogen supply to the cylinder valve outlet with a discharge adapter. Refer to Figure 53. Pressurize the cylinder with nitrogen to 200p5ig at 70°F. Refer to Table 23 for pressure variation with temperature. Turn off nitrogen supply and disconnect cylinder. Remove the discharge adapter. Check for leakage using a soap solution. Immediately install the Anti-Recoil and Valve Protection Plates until the cylinder is ready to be installed. Refer to "Installing Valve Protection and Anti-Recoil Plate" on page 69. Table 23 - EWC Cylinder Pressure vs. Temperature Temperature (°F) Pressure (PSIG) 50 192 60 196 70 200 80 204 90 208 NOTE: Temperature is measured at the external surface of the cylinder, below the liquid level. 73 Charging a Spare/Test Cylinder Secure the cylinder in a chain vice, strap vice, or similar. Ensure the cylinder has been hydrostatically tested, if applicable, and has been cleaned and inspected. Fill the cylinder with approximately 4 gallons of clean water. Re-install the valve/siphon tube assembly onto the cylinder and torque to 25 ft/lb. Connect the external nitrogen supply to the cylinder valve outlet with a discharge adapter. Refer to Figure 53. Pressure the cylinder with nitrogen to approximately 200psig at 70°F. Refer to Table 23 for pressure variation with temperature. Turn off nitrogen supply and disconnect cylinder. Remove the discharge adapter kit. Immediately install the Anti-Recoil and Valve Protection Plates. Refer to Figure 50. Installing a Cylinder All removed cylinders must be replaced with new (fully charged) or properly re-charged cylinders. Follow these steps to install a cylinder: Lubricate a new 0-ring with Parker Super 0-Lube and install on the discharge adapter. Remove the anti-recoil cap and place the cylinder into position, ensuring a tight seal with the discharge adapter. Strap the cylinder onto the cylinder bracket. Bolt the cylinder valve to the discharge adapter and cylinder bracket. Refer to page 13 and page 14 for details on installing the PAK and SVA. Rechecking the System After the inspections and procedures described previously in this section, the fire-suppression system is ready to be fully checked out before installation of the replacement wet chemical cylinders. Follow the system commissioning and test procedures outlined in "Start-up/Test Procedure" on page 60. Be sure to check the system for all modes of operation. 74 EWC SUPPRESSION SYSTEM PARTS Table 24 - System Components Description Part Number AIX Number EWC Cylinder Assembly, Filled & Pressurized 87-300001-001 A0030114 Bracket, EWC Cylinder EWC-UCTANKBRACKET N/A Discharge Adapter WK-283952-000 A0030115 0-Ring for Discharge Adapter WK-108019-000 A0030738 Vent Plug, Distribution Piping 60-9196984-000 A0030116 ADP Appliance Nozzle with Foil Seal Cap 87-300020-001 A0030117 TF1 Total Flood Nozzle with Foil Seal Cap 87-300021-001 A0030118 R Appliance Nozzle with Foil Seal Cap 87-120019-001 A0032708 Nozzle Swivel Adapter 87-120021-001 A0030119 Primary Actuator Kit (PAK) 87-300030-001 A0030120 Primary Actuator Solenoid Valve, 24VDC 87-300031-001 A0030121 Secondary Valve Actuator (SVA) 87-120042-001 A0030124 Secondary Valve Actuator Hose 7" 87-120045-001 A0031516 Secondary Valve Actuator Hose 24" 87-120045-002 A0030125 Secondary Valve Actuator Hose 60" 87-120045-003 A0031517 Cylinder Supervisory Pressure Switch 87-300040-001 A0030126 Gas Shut-off Valve, 3/4" (ASCO) 8214235 A0024941 Gas Shut-off Valve, 1" (ASCO) 8214250 A0024937 Gas Shut-off Valve, 1-1/4" (ASCO) 8214265 A0024938 Gas Shut-off Valve, 1-1/2" (ASCO) 8214275 A0024939 Gas Shut-off Valve, 2" (ASCO) 8214280 A0024940 Gas Shut-off Valve, 2-1/2" (ASCO) 8214290 A0024936 Gas Shut-off Valve, 3" (ASCO) 8214240 A0024935 Table 25 - Maintenance & Recharge Description Part Number AIX Number Valve Protection Plate WK-255096-000 A0030739 Anti-Recoil Plate WK-255681-000 A0030740 EWC Valve Rebuild Kit 87-120067-001 A0030741 Wet Chemical Recharge, single EWC cylinder 87-300101-001 A0030127 Discharge Adapter Kit (includes mounting flange) 83-844908-000 N/A Replacement Nozzle Cap 60-9197290-000 A0030128 Replacement Nozzle Seals 60-9197054-000 A0030129 Schrader Cap 87-300140-001 A0030130 Schrader Valve 87-300141-001 A0030515 SVA bolts 87-300152-001 A0030131 Table 26 - Service Parts (not supplied with system) Description Part Number A/X Number Low-Loss Fitting 1/4" Male to Male Thread Union U24 - A0030896 Low-Loss Fitting 1/4" Straight Adapter Male to Female Thread NABS A0030898 1/4" Refrigerant Test Hose, 30" Long, Low-Loss Fittings NHD1430 A0030899 1/4" Refrigerant Test Hose, 60" Long, Low-Loss Fittings NHD1460 A0030900 Nitrogen Tank HP20 A0030901 Pressure Regulator GEN45OF A0030902 75 Start-Up and Maintenance Documentation START-UP AND MEASUREMENTS SHOULD BE PERFORMED AFTER THE SYSTEM HAS BEEN INSTALLED (Warranty will be void without completion of this form) Job Information Job Name Service Company Address Address City City State State Zip Zip Phone Number Phone Number Fax Number Fax Number Contact Contact Purchase Date Start-Up Date Cleaning and Maintenance Record Notes: Factory Service Department I Phone: 1-866-784-6900 I Fax: 1-919-516-8710 0 TM FIRE PROTECTION CERTIFICATE OF COMPLETION CaptiveAire extends this certificate of attendance to Monte Morrison for completing the CORE PROTECTION FIRE SYSTEM TRAINING Commercial Kitchen Fire Suppression System II Listed to UL Standard 300 TRAINING DATF TRAINING LOCATION October 24 2019 Orange County, CA - . PRESIDENT / CAPTIVEAIRE SYSTEMS INC GRETM FIRE PROTECTION CERTIFICATE OF COMPLETION CaptiveAire extends this certificate of attendance to Luis Gonzalez for completing the CORE PROTECTION FIRE SYSTEM TRAINING Commercial Kitchen Fire Suppression System II Listed to UL Standard 300 TRAINING LOCATION Orange County, CA Dennis Grubi. and Associates, LLC Assisting Cities Build Safe Communities PLAN CORRECTIONS (FIRE) DGA#: CI 057 Carlsbad Permit #: FPC2021-0024 Checked by: D. Locati Jurisdiction: Carlsbad Applicant: Luis Gonzalez Phone#: 619-464-5625 Date of Review: 2/24/2021 Project Name: Lofty Coffee Project Address: 2742 State St The plans submitted for the project referenced above have been reviewed. The following information is needed to show compliance with the 2019 California Building and Fire Codes (CBC and CFC), and other codes as adopted and amended by state regulation and the City of Carlsbad. It will be necessary to reevaluate the project after the receipt of additional information as specified below. INSTRUCTIONS Resubmit three sets of the revised plans along with one set of the original plans. Provide a written response for each correction on this correction list. You may write directly on this list, or you may provide a separate "Response List" which addresses each correction item by item. Incorporate all corrections into the blue/black line drawings; cloud or can out all corrections. Return plans to Dennis Grubb & Associates, 6560 Van Buren Blvd, Ste B, Riverside, CA. 92503 CORRECTIONS ON THE PLANS THE FOLLOWING SHALL BE PROVIDED: Only persons properly trained shall be considered competent to design, install, and service pre-engineered wet chemical systems. Provide a copy of the training certificate for the designer and installer. CMC §513.10; NFPA17A-6.2 The manual actuation device shall be located at or near a means of egress and a minimum of 10 feet and no more than 20 feet from the cooking area; redesign accordingly. CFC §904.12 6560 Van Buren Blvd, Ste B, Riverside, CA. 92503 (800) 975-7395 * (951)772-0007