HomeMy WebLinkAbout1 LEGOLAND DR; ; FS160004; PermitCity of Carlsbad
Fixed Systems Permit
Permit No: FS160004
Job Address: I LEGOLAND DR
Permit Type: FIXSYS
Parcel No: 2111000900
Lot #: 0
Reference No.:
PC #:
Status: ISSUED
Applied 1/20/2016
Approved: 1/27/2016
Issued: 1/27/2016
Inspector:
Project Title: LEGOLAND PIZZA NEW CONVEYOR PIZZA COOKER; RE-
INSTALL ANSUL SYSTEM PROTECTION FOR KITCHEN
HOOD, DUCT, APPLIANCE
Applicant:
AZTEC FIRE & SAFETY
8108 COMMERCIAL ST
LA MESA, CA
619-464-5625
Owner:
LEGOLAND CALIFORNIA L L C PLAY U S
ACQUISI
C/O PROPERTY TAX SERVICE CO
P0 BOX 543185
DALLAS TX
Fees ($) Add'I Fees ($) Total ($) Balance ($)
243 0 243 0
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-47
7-1-09 REV.5
TANK AND CARTRIDGE REQUIREMENTS
Once the hazard analysis is completed and the total nozzle flow
numbers are established, the quantity and size of agent tanks and
cartridges needed to supply the nozzles with the proper volumes
of agent at the proper flow rates can be determined. For cartridges
used in the regulated release mechanism, flow capacities, tank
quantities and sizes, and regulated release cartridge options are
given in the table below.
Total Quantity and Regulated Release
Flow Size of Cartridge Options
Numbers* Tank(s) Nitrogen Carbon Dioxide
1 - 5 (1) 1.5 Gallon LT-20-R 10.1-10
6-11 (1)3.0Gallon LT-30-R 101-20
11-16 (1) 1.5 Gallon Double 101-30
3.0 Gallon
16-22 3.0 Gallon Double 10130**
16-22 (2) 3.0 Gallon Double -
(Manifold)
P-22 -33 (3) 3.0 Gallon Double -
When one or more regulated actuators are used, the following
tank and cartridge combinations apply for each regulated actuator:
Regulated Actuator
Cartridge
LT-20-R or 101-10
LT-30-R or 101-20
LT-A-101-30 or 10130** or
double tank
LT-A-101-30 or 10130** or
double tank
LT-A-101-30 or Double
LT-A-101-30 or Double
* For exceptions to maximum flow numbers, see Distribution Piping Requirements for 1.5 gallon
and 3.0 gallon systems in this Section.
The 101-30 cartridge can not be used when (2) two 3.0 gallon tanks are manifolded together.
For higher total flow numbers (23 to 110), multiple cartridges and
regulated actuators are required as shown in the System Selection
Guide in Section IX - Appendix.
ACTUATION AND EXPELLANT GAS LINE REQUIREMENTS
This section contains the guidelines for installing the actuation and
expellant gas lines between the regulated release mechanism reg-
ulator, each regulated actuator regulator, and each agent tank.
These limitations should be considered when selecting the com-
ponent mounting locations.
The actuation gas line is the length of pipe and/or hose that is run
from either the AUTOMAN Regulated Release Assembly or the
Remote Release Assembly that directs high pressure from the
cartridge in the release to actuate one or more additional
Regulated Actuator Assemblies. The actuation gas line can consist
of 1/4 in. Schedule 40 black iron, chrome-plated, stainless steel, or
galvanized steel pipe and fittings, and/or factory supplied stainless
steel braided actuation hose.
The expellant gas line is the length of pipe that is run from the
regulator in either the AUTOMAN Regulated Release Assembly or
a Regulated Actuator Assembly that directs regulated pressure to
the agent storage tanks to pressurize the tank and discharge the
agent. The expellant gas line shall consist of 1/4 in. Schedule 40
black iron, chrome-plated, stainless steel, or galvanized steel pipe
and fittings.
Actuation Gas Line —6 to 8* Tanks Maximum
* 8 Tank maximum reflects the utilization of 3 tank regulated actuators.
Use only 1/4 in. Schedule 40 black iron, hot-dipped galva-
nized, chrome-plated, or stainless steel pipe and fittings.
The actuation gas line piping is installed from the regulated
release mechanism to each regulated actuator connected
within the system. The total length of the actuation gas line
from the regulated release assembly to the regulated actuator
assembly(ies) must not exceed 20 ft (6 m) when using an
LT-20-R, an LT-30-R nitrogen cartridge, or a 101-10 or a
0. 101 -20 carbon dioxide cartridge. See Figure 100.
Regulated Actuator
Tank(s)
(1) 1.5 Gallon
(1) 3.0 Gallon
(1) 1.5 Gallon and
3.0 Gallon
3.0 Gallon
m. (2) 3.0 Gallon (Manifold)
3.0 Gallon
REGULATED ACTUATOR ASSEMBLY
EXPELLANT GAS LINES
NOT INCLUDED IN ACTUATION
GAS LINE LENGTH TOTALS REGULATED
ACTUATOR
ASSEMBLY
ACTUATION GAS LINE WITH AN LT-20-R,
LT-30-R, 101-10 OR 101-20 CARTRIDGE
MAXIMUM LENGTH OF 20 FT. (6 m),
MAXIMUM NO. OF FITTINGS 9
REGULATED
ACTUATOR
"ANSUL AUTOMAN"
REGULATED RELEASE
ASSEMBLY
FS1 60004
I LEGOLAND DR
FIGURE 100
000775
%. CHECK VALVE
MAXIMUM OF
.... 5 REMOTE
RELEASE
MECHANISMS
(PART NO.
4 433485)
S..'
L_J
ONE (1)
REGULATED
RELEASE (PART
NO. 429853)
FIGURE 102
000301
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-48
REV. 6 7-1-09
ACTUATION AND EXPELLENT GAS LINE REQUIREMENTS
(Continued)
Actuation Gas Line —6 to 8* Tanks Maximum (Continued)
If an expellant gas line is connected to the regulated release
assembly along with an actuation gas line, the total combined
length of the actuation and expellant gas line must not
exceed 30 ft (9 m) when using a "double-tank" nitrogen car-
tridge or a LT-A-101-30 nitrogen cartridge or a 101-30 carbon
dioxide cartridge. See Figure 101.
A combined total of nine fittings may be used in these lines,
eight 90° elbows and one tee. Two 450 elbows equal one 900
elbow.
Actuation Gas Line —10 to 15* Tanks Maximum
* 15 Tank maximum reflects the utilization of 3 tank regulated actuators.
1. Use only 1/4 in. Schedule 40 black iron, hot-dipped galva-
nized, chrome-plated, or stainless steel pipe and fittings.
Note: Stainless steel hose and fittings can also be used. See
Component Section for detailed information.
ACTUATOR AND EXPELLANT GAS LINES WITH A "DOUBLE TANK" CARTRIDGE
OR A 101-30 CARTRIDGE OR A LT-A-101-30 CARTRIDGE
MAXIMUM COMBINED LENGTH -30 FT (9 m)
MAX MUM COMB NED FITTINGS -9
The actuation gas line piping is installed from the 101 remote
mechanical release to each R-102 regulated actuator assem-
bly. The total length of the actuation gas line from the remote
mechanical release to the regulated actuator assemblies must
not exceed 100 ft (30.5 m).
A combined total of 20 elbows and 9 tees may be used
in these lines. Two 450 elbows equal one 900 elbow. See
Figure 102.
Use only a 101 -10 carbon dioxide cartridge in the 101 remote
mechanical release.
A safety vent relief valve (Part No. 15677) is required in the
actuation gas line to relieve residual pressure after actuation.
P. Actuation Gas Line - Using 1/4 in. Stainless Steel Hose
15 Tank maximum reflects the utilization of 3 tank regulated actuators.
Maximum total length of hose cannot exceed 17.5 ft (5.3 m).
Note: A combination of 1/4 in. stainless steel braided hose
and 1/4 in. NPT pipe can be used as long as the total com-
bined actuation gas line length does not exceed 17.5 ft
(5.3 m). Stainless steel braided hose cannot be used for
expellant gas lines. See Figure 102 for additional details.
Maximum of 5 regulated actuators allowed
Actuated with remote release (Part No. 433485) or Regulated
Release Assembly (Part No. 429853)
REGULATED
ACTUATOR
ASSEMBLY
REGULATED
ACTUATOR ASSEMBLY EXPELLANT
REGULATED ACTUATOR
ASSEMBLY GAS LINES NOT INCLUDED "ANSUL AUTOMAN" IN COMBINED TOTALS REGULATED RELEASE ASSEMBLY
FIGURE 101
000262
20 ELBOWS
SAFETY EXPELLANT 1/4 IN. ACTUATION LINE - 9 TEES MAXIMUM MAXIMUM
RELIEF VALVE GAS LINE 100FT(30.5m)MAXIMUM
01 011 P =p 1riJl
i 0111 "=
1r1
rim, I
I
I I I
I I I I I I
I
L
.
I I I I I
I I
I 'l l I
REGULATED ACTUATOR
WITH TANK
MAXIMUM OF 5 REMOTE RELEASE MECHANISMS AGENT TANK REGULATED (PART NO. 433485) 5 MAXIMUM
ACTUATORS
1/4 IN. STAINLESS STEEL HOSE OPTIONS
SAFETY
RELIEF VALVE
I
I
42 IN. (107 Cr0)
MAX HOSE
I
-'
1/4 IN. STAINLESS
STEEL HOSE LENGTH(TYP)iLENGTH(TY1
II I F'iI 1411 Fi I II 1111
1 II II I I I I I II il
II
I
I I
I I
I I
I I I
I I II
I I
I I
II I II
II I
II I I I I I I I I I I II I I
REGULATED ACTUATOR
WITH TANK MAXIMUM OF 5
REGULATED ACTUATORS
NOTE: WHEN MULTIPLE RELEASE ASSEMBLIES ARE UTILIZED, A 1/4 IN. CHECK VALVE,
PART NO. 25627, WILL BE REQUIRED AFTER EACH REGULATED RELEASE.
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-49
7-1-09 REV.5
ACTUATION AND EXPELLENT GAS LINE REQUIREMENTS
(Continued)
Expellant Gas Line
1. The expellant gas line is installed from the regulated release
mechanism in double, three, and multiple-tank systems, and
from the regulated actuator assembly in multiple-tank sys-
tems. The expellant gas line is the piping and/or hose between
the regulator and the tank-enclosure/tank-bracket assembly.
The total length of the expellant gas line from the regulated
release mechanism or each regulated actuator assembly
must not exceed 30 ft (9 m) when using a "double-tank" car-
tridge, an LT-A-101-30 Cartridge, or a 101-30 Cartridge. See
Figures 103 and 104.
EXPELLANT GAS LINE
MAXIMUM LENGTH -30 FT (9 m),
MAXIMUM NO. OF FITTINGS -9
"ANSUL AUTOMAN"
REGULATED RELEASE
ASSEMBLY
4. If three 3.0 gallon tanks are connected to the regulator in
either a regulated release or regulated actuator assembly,
only factory supplied expellant gas hose assemblies will be
utilized. Refer to Distribution Piping Requirements - 9.0
Gallon System, page 4-55 for additional design requirements.
DISTRIBUTION PIPING REQUIREMENTS
Once the nozzle placement and quantity of tanks has been deter-
mined, it is then necessary to determine the piping configurations
between the tank adaptor and each discharge nozzle. This section
contains the guidelines and limitations for designing the distribu-
tion piping so that the liquid agent will discharge from the nozzles
at a proper flow rate. These limitations should also be referred to
when selecting the mounting location for the regulated release
mechanism and agent tank.
General Piping Requirements
All R-1 02 system piping is straight line. Therefore, the need for
critical lengths and balancing is minimized.
Two 45° elbows count as one 900 elbow.
Each branch line includes the tee or elbow leading to it, and
all fittings within the branch line itself.
The minimum piping length of Schedule 40, 3/8 in. pipe from
the tank outlet to any nozzle protecting a range, fryer, or wok
must be 6 ft (1.8 m).
Pipe lengths are measured from center of fitting to center of
fitting. See Figure 105.
-i CENTER TO CENTER
FIGURE 103
000776
EXPELLANT GAS LINE
MAXIMUM LENGTH -30 FT (9 m),
MAXIMUM NO. OF FITTINGS -9
REGULATED ACTUATOR
ASSEMBLY
FIGURE 104
000777
FIGURE 105
000778
All distribution piping must be 3/8 in. Schedule 40 black iron,
chrome-plated, or stainless steel. Do not use hot dipped gal-
vanized pipe on the distribution piping.
All threaded connections located in and above the protected
area must be sealed with pipe tape. Tape should be applied to
male threads only. Make certain tape does not extend over the
end of the thread, as this could cause possible blockage of the
agent distribution.
Before installing blow-off caps on nozzles, apply a small
amount of Dow Corning No. 111 silicone grease across the
opening in the nozzle tip and also a small amount coating the
exterior of the blow-off cap. This will help keep cooking grease
from building up on the cap.
Tees used in the distribution piping can be used as thru tees,
side outlet tees, or bull tees.
A combined total of nine fittings may be used in these lines,
eight 90° elbows and one tee. Two 45° elbows equal one 90°
elbow.
If two tanks are connected to the regulated release assembly
in a multiple-tank system arrangement, the total combined
length of the actuation and expellant gas lines must not
exceed 30 ft (9 m) when using a "double-tank" nitrogen car-
tridge, an LT-A-101-30 nitrogen cartridge, or a 101-30 carbon
dioxide cartridge. See Figure 101.
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-50
REV. 5 7-1-09
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Supply and Branch Line Identification
The R-102 distribution piping network is broken down into four
specific pipe runs: the Supply Line, the Duct Branch Line,
the Plenum Branch Line, and the Appliance Branch Line. See
Figure 106. -
DUCT
BRANCH LINE A .1
SUPPLY LINE
The Supply Line is defined as the length of pipe which runs from
the agent tank outlet to the last branch line (whether a duct, appli-
ance, or plenum branch line). This includes all supply line fittings
except for the tees or elbows leading to the branch lines. See
m. Figures 106 and 107.
END OF
SUPPLY LINE
END OF
SUPPLY LINE :
SUPPLY
LINE
PLENUM APPLIANCE
BRANCH LINE BRANCH LINE
NOTE: THIS IS CONCEPTUAL DRAWING ONLY.
THIS IS NOT AN ACTUAL INSTALLATION.
FIGURE 106 000779
NOTE: THESE ARE EXAMPLES ONLY. OTHER CONFIGURATIONS CAN BE DESIGNED.
END OF
SUPPLY LINE
- .D OF
SUPPLY LINE
$
SUPPLY (NOZZLES FOR
LINE TEE PLENUM
PROTECTION)
0.
END OF
SUPPLY LINE
BRANCH LINE CANNOT
START AHEAD OF A
SUPPLY LINE TEE
(NOZZLES FOR
PLENUM
PROTECTION)
BRANCH LINE CANNOT
START AHEAD OF A
SUPPLY LINE TEE
FIGURE 107 000780
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-51
7-1-09 REV. 5
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Supply and Branch Line Identification (Continued)
NOTICE
Branch lines cannot start ahead of a supply line
tee.
DUCT BRANCH LINE
The Duct Branch Line is defined as the length of pipe which runs
from the supply line to the duct nozzle(s). This includes all branch
line fittings as well as the tee or elbow used to start the branch line.
See Figures 107 and 108.
DUCT BRANCH LINE
(ELBOW INCLUDED)
$ DUCT BRANCH LINE
(TEE INCLUDED)
()
II U ----- DUCT BRANCH LINE
(TEES INCLUDED)
FIGURE 108
000781
PLENUM BRANCH LINE
The Plenum Branch Line is defined as the length of pipe which
runs from the supply line to the plenum nozzle(s). This includes all
branch line fittings as well as the tee or elbow used to start the
branch line. See Figures 106 and 109.
- - - -
---- - f PLENUM BRANCH LINE -. •
I (TEE INCLUDED)
••
- PLENUM BRANCH LINE
(TEE INCLUDED)
FIGURE 109
000782
APPLIANCE BRANCH LINE
The Appliance Branch Line is defined as the length of pipe which
runs from the supply line to the appliance nozzle(s). This includes
all branch line fittings as well as the tee or elbow used to start the
branch line. See Figures 107 and 110.
-a
-- -
APPLIANCE BRANCH LINES
(TEES INCLUDED)
FIGURE 110
000783
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-52
REV. 4 7-1-09
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 1.5 Gallon System
DUCT, PLENUM, AND APPLIANCE PROTECTION
This option allows for duct protection, plenum protection,
appliance protection, or any combination. However, only one
(1) duct nozzle may be used, either a 1W or a 2W, nozzle.
All distribution piping, supply and branch, must be 3/8 in.
Schedule 40 black iron, chrome-plated, or stainless steel.
Each 1.5 gallon tank allows a maximum of five flow numbers.*
The pipe length between the start of the first branch line and
the start of the last branch line must not exceed 8 ft (2.4 m).
When the supply line is split, the combined length of both
legs of the supply line (start of first branch line to start of last
branch line) must not exceed 8 ft (2.4 m). See Figure 111.
The combined length of all branch lines must not exceed 22 ft
(6.7 m). See Figure 112.
The requirements of the following table must not be exceeded:
START OF LAST
BRANCH LINE
START OF FIRST
BRANCH LINE
SUPPLY
LINE TEE TOTAL LENGTH
MUST NOT
EXCEED 8 FT
If 7' (2.4 m)
START OF LAST LliJ BRANCH LINE
START OF FIRST
BRANCH LINE
FIGURE 111
000784
1W NOZZLE
(BRANCH LINES IN BOLD) COMBINED LENGTH MUST
NOT EXCEED 22 FT. (6.7 m(
FIGURE 112
000785
Duct Plenum Appliance
Requirements Supply Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 6 ft 4 ft lOft
(12.2 m) (1.8 m) (1.2 m) (3m)
Maximum Rise 6 ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 900 Elbow 9 4 4 6
Maximum Tees 1 1 2 3
Maximum Flow Numbers 5* 2 2 3
* Exceptions:
Six (6) flow numbers are allowed when a duct branch line is the last branch line on the piping network and no 1 N nozzles are used to protect woks or griddles.
Six (6( flow numbers are allowed when six (6) IN nozzles are used and none of the nozzles are used to protect woks, griddles, ranges, and salamanders.
NOTE: Only live (5) how numbers are allowed if a 1N nozzle is used for wok, griddle, range, or salamander protection.
Six (6) flow numbers are allowed when only two (2) 3N nozzles are used.
SECTION IV - SYSTEM DESIGN
. UL EX3470 ULC EX3470 Page 4-53
7-1-09 REV. 4
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 3.0 Gallon System
The maximum length between the start of the first branch line
and the start of the last branch line must not exceed 24 ft
(7.3 m). When the supply line is split, the combined total of
both legs of the supply line (from the start of the first branch
line to the start of the last branch line) must not exceed 24 ft
(7.3 m). See Figure 113.
The total length of all branch lines must not exceed 36 ft
(10.9 m). See Figure 113.
Use a 3/8 in. union to connect the tank adaptor to the 3/8 in.
supply line.
A maximum of two nozzles are allowed per duct branch line.
The requirements of the following table must not be exceeded:
SUPPLY
TEE (
ri I COMBINED LENGTH OF
BOTH LEGS OF SUPPLY
LINE MUST NOT
EXCEED 24 FT (7.3 m)
2W NOZZLE
000266
3 BRANCH LINES
IN NOZZLE
IN NOZZLE
[j
230 NOZZLE
245 NOZZLE 1/2N NOZZLE
(BRANCH LINE IN BOLD)
COMBINED LENGTH MUST 000502
NOT EXCEED 36 FT (10.9 m)
FIGURE 113
Duct Plenum Appliance
Requirements Supply Line Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 8 ft 4 ft 12 ft
(12.2 m) (2.4 m) (1.2 m) (3.7 m)
Maximum Rise 6 ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 90° 9 4 4 6
Elbows
Maximum Tees 1 2 2 4
Maximum Flow 11* 4 2 4
Numbers
Exceptlons
Twelve (12) flow numbers are allowed in any one tank for duct and plenum protection only.
Twelve (12) flow numbers are allowed with any one tank using only two-flow appliance nozzles.
Twelve (12)110w numbers are allowed with any one tank using only three-flow appliance nozzles.
Special Instructions:
Twelve (12) flow numbers are allowed when tour (4) Dean Industries GTI Gas Fryers are protected at low proximity as shown in Figure 66 on Page 4-32. The discharge piping must
be as shown in Figure 67 on Page 4-32.
For certain McDonald's applications, 11.5 flow numbers are allowed when using a combination of one (1) 2W duct nozzle, one (1) 1/2N electrostatic precipitator nozzle,
one (1) 1 N plenum nozzle, and four (4) two-flow appliance nozzles. Contact ANSUL Applications Engineering Department for additional information.
2W
NOZZLES I
:ZLE
ZZLE
SECTION IV - SYSTEM DESIGN
U UL EX3470 ULC EX3470 Page 4-54
REV.5 7-1-09
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 6.0 Gallon Manifolded
System
As an option to piping two (2) 3.0 gallon tanks separately, two (2)
3.0 gallon tanks can be manifolded together to share a common
agent distribution line. Only (2) 3.0 gallon tanks connected to the
same regulator can be manifolded. The following requirements
must be met when manifolding:
All piping must be 3/8 in. Schedule 40.
See Figure 115 for tank connections.
The length of supply line piping between the start of the first
branch line and the start of the last branch line must not
exceed 24 ft (7.3 m). See Figure 94. When the supply line is
split, the combined total of both legs of the supply line (from
the start of the first branch line to the start of the last branch
line) must not exceed 24 ft (7.3 m).
The combined length of all branch lines must not exceed 36 It
(10.9 m). See Figure 114.
A maximum of 22 flow numbers are allowed.
6.. The requirements of the following table must not be exceeded.
LENGTH OF PIPING MUST NOT EXCEED 24 FT
17 ,,,( PPMA TAPT ñ FIRST RiAM(( I IMP
2 FLOW APPLIANCE NOZZLE
(BRANCH LINES IN BOLD)
COMBINED LENGTH MUST NOT EXCEED 36 FT (10.9 m)
FIGURE 114
000267
Duct Plenum Appliance
Requirements Supply Line Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 32 ft 8 ft 4 It 12 ft
(9.7 m) (2.4 m) (1.2 m) (3.7 m)
Maximum Rise 6 ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 90° 8 4 4 6
Elbows
Maximum Tees 2 2 2 4
Maximum Flow 22 4 2 4
Numbers
SECTION IV - SYSTEM DESIGN
U UL EX3470 ULC EX3470 Page 4-55
7-1-09 REV.4
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 6.0 Gallon Manifolded
System (Continued)
This configuration consists of two 3 gallon tanks. Both tanks are
connected to a common manifold tee and are pressurized from a
single double tank (Part No. 73022) nitrogen cartridge in the regu-
lated release assembly. See Figure 115. Note: A tank mounting
bracket can be utilized instead of the tank/enclosure assembly.
rSee Figure 117.
3/8 IN.
3/8 IN. 3/8 IN. BRANCH
SUPPLY SUPPLY
USE HOSE/ SEE
GROMMET h'NOTE LLJL
PACKAGE \ NO.
(PART NO. 3/8 IN BRANCH
418511) —IN-LINE BURST DISC
ASSEMBLY - SEE NOTE NO.4
- REMOVE
BURST DISC—
SEE NOTE NO 3
m. Distribution Piping Requirements -With Independent Pipe
Runs
Independent pipe runs can also be used with the regulated
release assembly and the tank/enclosure assembly or tank mount-
ing brackets. See Figure 116. When manifolding is not used, each
of the two (2) 3 gallon tanks utilize the piping limitations of a single
tank system.
OSr GROMMET -
PACKAGE
(PART NO. \tjl rif
418511) 1W. III
3.0 H 3.0
GALLON GALLON
TANK TANK
3.0 GALLON REGULATED RELEASE 008127
ASSEMBLY OR 3.0 GALLON REGULATED
ACTUATOR ASSEMBLY
III 3.0 GALLON 11111 3.0 GALLON I II II TANK 11111 TANK
II OR lull OR 1 DOUBLE TANK 1.5 GALLON 1.5 GALLON DOUBLE TANK
NITROGEN I I TANK TANK 1 NITROGEN
CARTRIDGE OR II
II
II II CARTRIDGE OR
101-30 CO2 (LT-A-101-30 Ii CARTRIDGE CARTRIDGE - I (LT-A-101-30 REGULATED I REGULATED RELEASE ASSEMBLY OR CARTRIDGE - ACTUATOR ONLY) REGULATED ACTUATOR ASSEMBLY REGULATED
TANK/ENCLOSURE ACTUATOR ONLY)
ASSEMBLY
TANK/ENCLOSURE
ASSEMBLY
NOTE 1: THE PIPE CONNECTION FROM TANK CENTER TO TANK
CENTER CANNOT EXCEED 8-1/2 IN. (21.5 cm). ALSO, OEM
RELEASE/BRACKET ASSEMBLY CAN BE UTILIZED WHEN
MANIFOLDING 3.0 GALLON TANK.
NOTE 2: ONLY 3 GALLON TANKS CAN BE MANIFOLDED.
NOTE 3: THE BURST DISC THAT IS PART OF THE TANK
ADAPTOR/BURST DISC ASSEMBLY MUST BE REMOVED
AND MODIFIED. SEPARATE THE ALUMINUM DISC
MATERIAL FROM THE PLASTIC GASKET DISCARD THE
ALUMINUM DISC MATERIAL AND REINSTALL THE
PLASTIC GASKET BACK INTO THE TANK
ADAPTOR/BURST DISC ASSEMBLY.
NOTE 4: THE IN-LINE BURST DISC ASSEMBLY, PART NO. 416790,
IS TO BE MOUNTED AS CLOSE TO THE TANK OUTLET AS
POSSIBLE. AFTER SYSTEM DISCHARGE, THE ASSEMBLY
MUST BE DISASSEMBLED AND A NEW BURST DISC
INSTALLED.
FIGURE 115
FIGURE 116
000780
Note: If an expellant gas hose is to be used for a second tank in
an adjacent tank enclosure or tank bracket assembly, the second
tank will need to be installed on the left side of the ANSUL
AUTOMAN Regulated Release, with the outlets a maximum of 8
1/2 in. (21.6 cm) from center to center, similar to the manifolded
system in Figure 115. Otherwise, the second tank will require 1/4
in. NPT pipe instead of expellant gas hose.
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-56
REV.4 7-1-09
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 9.0 Gallon System
This optional configuration consists only of three 3-gallon tanks, all
pressurized from a single double-tank nitrogen cartridge with
o. expellant gas hoses connected as shown in Figure 117. Tanks No.
1 and No. 2 must be connected directly to the regulator with sepa-
rate expellant gas hoses and Tank No. 3 must be connected to
Tank No. 2 with a third expellant gas hose as shown in Figure 117.
Each tank must be connected to an independent distribution pip-
ing network as shown in Figure 117. Distribution piping require-
ments for each network must be as follows:
The maximum length between the start of the first branch line
and the start of the last branch line must not exceed 24 ft
(7.3 m). When the supply line is split, the combined total of
both legs of the supply line (from the start of the first branch
line to the start of the last branch line) must not exceed 24 ft
(7.3 m). See Figure 113.
The total length of all branch lines must not exceed 36 ft
(10.9 m). See Figure 113.
Use a 3/8 in. union to connect the tank adaptor to the 3/8 in.
supply line.
A maximum of two nozzles are allowed per duct branch line.
When using this 9.0 gallon system configuration, no mani-
folding of distribution piping is allowed.
When an ANSUL AUTOMAN Regulated Release is utilized in
this configuration, additional regulator actuators cannot be
used.
Only 3 gallon tanks can be utilized in this configuration.
The requirements of the following table must not be exceeded
for each 3 gallon tank:
TWO TANK ENCLOSURE 3 GALLON REGULATED DOUBLE TANK NITROGEN
ASSEMBLY PART NO. RELEASE ASSEMBLY, CARTRIDGE OR
430324 (INCLUDES (2) OR 3 GALLON LT-A-101-30 CARTRIDGE
HOSES AND (2) REGULATED ACTUATOR (REGULATED ACTUATOR
GROMMETS) ASSEMBLY ONLY)
NOTE: WHEN THREE (3) 3.0 GALLON TANKS ARE CONNECTED TO ONE (1)
AUTOMAN REGULATED RELEASE ASSEMBLY, NO ADDITIONAL
REGULATED ACTUATOR(S) ASSEMBLIES CAN BE USED.
FIGURE 117
008126
Duct Plenum Appliance
Requirements Supply Line Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 8 ft 4 ft 12 ft
(12.2 m) (2.4 m) (1.2 m) (3.7 m)
Maximum Rise 6 ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 90° 9 4 4 6
Elbows
Maximum Tees 1 2 2 4
Maximum Flow 11* 4 2 4
Numbers
*Exceptions:
I. Twelve (12) flow numbers are allowed in any one tank for duct and plenum protection ONLY.
Twelve (12) flow numbers are allowed with any one tank using only two-flow appliance nozzles.
Twelve It 2) flow numbers are allowed with any one tank using only three-flow appliance nozzles.
Special Instructions:
I. When four (4) Dean Industries GTI Gas Fryers are protected at low proximity as shown in Figure 66 on Page 4-32, the discharge piping must be as shown in Figure 67 on
Page 4-32.
2. For certain McDonald's applications, 11.5 flow numbers are allowed when using a combination of one (1) 2W duct nozzle, one (1) 1/2N electrostatic precipitator nozzle,
one (1) 1N plenum nozzle, and four (4) two-flow appliance nozzles. Contact Ansul Applications Engineering Department for additional information.
R-102 Restaurant Fire Suppression Manual
TANK AND CARTRIDGE REQUIREMENTS
Once the hazard analysis is completed and the total nozzle flow
numbers are established, the quantity and size of agent tanks
and cartridges needed to supply the nozzles with the proper
volumes of agent at the proper flow rates can be determined.
For cartridges used in the regulated release mechanism, flow
capacities, tank quantities and sizes, and regulated release
cartridge options are given in the table below.
Total Quantity and Regulated Release
Flow Size of Cartridge Options Numbers* Tank(s) Nitrogen Carbon Dioxide
1-5 (1)i.5Gallon LT-20-R 101-10
6 -11 (1) 3.0 Gallon LT-30-R 101-20
11-16 (1) 1.5 Gallon Double 101-30
(1) 3.0 Gallon
16-22 (2) 3.0 Gallon Double 101-30**
16-22 (2) 3.0 Gallon Double -
(Manifold)
22 -33 (3) 3.0 Gallon Double -
When one or more regulated actuators are used, the following
tank and cartridge combinations apply for each regulated actu-
ator:
Regulated Actuator Regulated Actuator
Tank(s) Cartridge
(1) 1.5 Gallon LT-20-R or 101-10
(1) 3.0 Gallon LT-30-R or 101-20
(1) 1.5 Gallon and LT-A-101-30 or 10130** or
3.0 Gallon double tank
3.0 Gallon LT-A-101-30 or 10130** or
double tank
(2) 3.0 Gallon (Manifold) LT-A-101-30 or Double
(3) 3.0 Gallon LT-A-101-30 or Double
* For exceptions to mastmum flow numbers, see Distribution Piping Requirements for 1.5
gallon and 3.0 gallon systems In this Section.
** The 101-30 cartridge can not be used when two 3.0 gallon tanks are manlfolded together.
SECTION 4— SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-61
For higher total flow numbers (23 to 110), multiple cartridges
and regulated actuators are required as shown in the System
Selection Guide in "Appendix" Section
ACTUATION AND EXPELLANT GAS LINE REQUIREMENTS
This section contains the guidelines for installing the actuation
and expellant gas lines between the regulated release mech-
anism regulator, each regulated actuator regulator, and each
agent tank. These limitations should be considered when select-
ing the component mounting locations.
The actuation gas line is the length of pipe and/or hose that is
run from either the AUTOMAN Regulated Release Assembly or
the Remote Release Assembly that directs high pressure from
the cartridge in the release to actuate one or more additional
Regulated Actuator Assemblies. The actuation gas line can
consist of 1/4 in. Schedule 40 black iron, chrome-plated, stain-
less steel, or galvanized steel pipe and fittings, and/or factory
supplied stainless steel braided actuation hose.
The expellant gas line is the length of pipe that is run from the
regulator in either the AUTOMAN Regulated Release Assembly
or a Regulated Actuator Assembly that directs regulated pres-
sure to the agent storage tanks to pressurize the tank and
discharge the agent. The expellant gas line shall consist of 1/4
in. Schedule 40 black iron, chrome-plated, stainless steel, or
galvanized steel pipe and fittings.
Actuation Gas Line —6 to 8* Tanks Maximum
* 8 Tank maximum reflects the utilization of Stank regulated actuators.
Use only 1/4 in. Schedule 40 black iron, hot-dipped galva-
nized, chrome-plated, or stainless steel pipe and fittings.
The actuation gas line piping is installed from the regulated
release mechanism to each regulated actuator connected
within the system. The total length of the actuation gas line
from the regulated release assembly to the regulated aôtua-
tor assembly(ies) must not exceed 20 It (6.0 m) when using
an LT-20-R, an LT-30-R nitrogen cartridge, or a 101-10 or a
101-20 carbon dioxide cartridge. See Figure 4-121.
REGULATED ACTUATOR ASSEMBLY
EXPELLANT GAS LINES
NOT INCLUDED IN ACTUATION
GAS LINE LENGTH TOTALS
ACTUATION GAS LINE WITH AN LT-20-R,
LT-30-R, 101-10 OR 101-20 CARTRIDGE.
MAXIMUM LENGTH OF 20 FT (6.0 m); MAXIMUM NO. OF FITTINGS 9
AUTOMAN
REGULATED RELEASE
ASSEMBLY
FIGURE 4-121
000775
R-102 Restaurant Fire Suppression Manual
ACTUATION AND EXPELLENT GAS LINE REQUIREMENTS
(Continued)
Expellant. Gas Line
The expellant gas line is installed from the regulated release
mechanism in double, three, and multiple-tank systems,
and from the regulated actuator assembly in multiple-tank
systems. The expellant gas line is the piping and/or hose
between the regulator and the tank-enclosureank-braCket
assembly. The total length of the expellant gas line from
the regulated release mechanism or each regulated actu-
ator assembly must not exceed 30 ft (9.1 m) when using
a "double-tank" cartridge, an LT-A-101-30 Cartridge, or a
101-30 Cartridge. See Figures 4-124 and 4-125.
EXPELLANT GAS LINE
MAXIMUM LENGTH-30 FT (9.1 m);
MAXIMUM NO. OF FITTINGS -9
SECTION 4— SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-63
If two tanks are connected to the regulated release
assembly in a multiple-tank system arrangement, the total
combined length of the actuation and expellant gas lines
must not exceed 30 ft (9.1 m) when using a "double-tank"
nitrogen cartridge, an LT-A-101-30 nitrogen cartridge, or a
101-30 carbon dioxide cartridge. See Figure 4-122.
If three 3.0 gallon tanks are connected to the regulator in
either a regulated release or regulated actuator assembly,
only factory supplied expellant gas hose assemblies will
be utilized. Refer to Distribution Piping Requirements - 9.0
Gallon System, page 4-70 for additional design requirements.
DISTRIBUTION PIPING REQUIREMENTS
Once the nozzle placement and quantity of tanks has been
determined, it is then necessary to determine the piping config-
urations between the tank adaptor and each discharge nozzle.
This section contains the guidelines and limitations for designing
the distribution piping so that the liquid agent will discharge from
the nozzles at a proper flow rate. These limitations should also
be referred to when selecting the mounting location for the regu-
lated release mechanism and agent tank.
EXPELLANT GAS LINE
MAXIMUM LENGTH -30 FT (9.1 m);
MAXIMUM NO. OF FITTINGS -9
AUTOMAN REGULATED
RELEASE ASSEMBLY
FIGURE 4-124
000776
General Piping Requirements
All R-102 system piping is straight line. Therefore, the need
for critical lengths and balancing is minimized.
Two 450 elbows count as one 900 elbow.
Each branch line includes the tee or elbow leading to it, and
all fittings within the branch line itself.
The minimum piping length of Schedule 40, 3/8 in. pipe from
the tank outlet to any nozzle protecting a range, fryer, or wok
must be 6 ft (1.9 m).
Pipe lengths are measured from center of fitting to center of
fitting. See Figure 4-126.
Ii CENTER TO CENTER
FIGURE 4-126
000778
All distribution piping must be 3/8 in. Schedule 40 black iron,
chrome-plated, or stainless steel. Do not use hot dipped
galvanized pipe on the distribution piping.
All threaded connections located in and above the protected
area must be sealed with pipe tape. Tape should be applied
to male threads only. Make certain tape does not extend over
the end of the thread, as this could cause possible blockage
of the agent distribution.
Before installing blow-off caps on nozzles, apply a small
amount of Dow Coming No. 111 silicone grease across the
opening in the nozzle tip and also a small amount coating the
exterior of the blow-off cap. This will help keep cooking grease
from building up on the cap.
Tees used in the distribution piping can be used as thru tees,
side outlet tees, or bull tees.
REGULATED ACTUATOR
ASSEMBLY
FIGURE 4-125
000777
.'\. 2. A combined total of nine fittings may be used in these lines,
eight 900 elbows and one tee. Two 450 elbows equal one
900 elbow.
SECTION 4— SYSTEM DESIGN
UL EX3470 ULC EX3470
PAGE 4-64 REV. 11 2014-SEP-01
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Supply and Branch Line Identification
The R-102 distribution piping network is broken down into
four specific pipe runs: the Supply Line, the Duct Branch Line,
the Plenum Branch Line, and the Appliance Branch Line. See
Figure 4-127.
DUCT BRANCH
LINE A
R-102 Restaurant Fire Suppression Manual
SUPPLY LINE
The Supply Line is defined as the length of pipe which runs from
the agent tank outlet to the last branch line (whether a duct,
appliance, or plenum branch line). This includes all supply line
fittings except for the tees or elbows leading to the branch lines.
See Figures 4-127 and 4-128.
SUPPLY
LINE
PLENUM APPLIANCE
BRANCH LINE BRANCH LINE
NOTE: THIS 5 A CONCEPTUAL DRAWING ONLY.
THIS IS NOT AN ACTUAL INSTALLATION. FIGURE 4-127
NOTE: THESE ARE EXAMF
END OF
SUPPLY LINE
D OF
PLY LINE
(NOZZLES FOR
PLENUM
PROTECTION)
END OF
SUPPLY LINE
BRANCH LINE CANNOT
START AHEAD OF
SUPPLY LINE TEE
(NOZZLES FOR
N PLENUM
PROTECTION)
BRANCH LINE CANNOT
START AHEAD OF
SUPPLY LINE TEE
FIGURE 4-128
R-102 Restaurant Fire Suppression Manual SECTION 4— SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-67
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 3.0 Gallon System
The maximum length between the start of the first branch
line and the start of the last branch line must not exceed
24 ft (7.3 m). When the supply line is split, the combined
total of both legs of the supply line (from the start of the
first branch line to the start of the last branch line) must not
exceed 24 ft (7.3 m). See Figure 4-134.
The total length of all branch lines must not exceed 36 ft
(10.9 m). See Figure 4-134.
Use a 3/8 in. union to connect the tank adaptor to the 3/8 in.
supply line.
A maximum of two nozzles are allowed per duct branch line.
The requirements of the following table must not be
exceeded:
SUPPLY
TEE
005266
COMBINED LENGTH OF
BOTH LEGS OF SUPPLY
LINE MUST NOT 3 BRANCH LINES
EXCEED 24 FT (7.3 m)
IN NOZZLE 2W NOZZLE -._. •
IN NOZZLE
[J]
230 NOZZLE /
245 NOZZLE 1/2N NOZZLE
(BRANCH LINE IN BOLD)
COMBINED LENGTH MUST 000552
NOT EXCEED 36 FT (10.9 m)
FIGURE 4-134
3.0 GALLON SYSTEM
Duct Plenum Appliance
Requirements Supply Line Branch Line Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 8 ft 4 ft 12 ft
(12.1 m) (2.4 m) (1.2 m) (3.6 m)
Maximum Rise 6 f 4 f 2 f 2 i
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 900 9 4 4 6
Elbows
Maximum Tees 1 2 2 4
Maximum Flow 11* 4 2 4
Numbers
*Exceptions:
Twelve flow numbers are allowed in any one tank for duct and plenum protection only.
Twelve flow numbers are allowed with any one tank using only two-flow appliance nozzles.
Twelve flow numbers are allowed with any one tank using only three-flow appliance nozzles.
Special Instructions:
Twelve flow numbers are allowed when tour Dean Industries GTl Gas Fryers are protected at low proximity as shown in Figure 4-66 on Page 4-32. The discharge piping must be
as shown in Figure 4-67 on Page .4-32.
For certain McDonald's applications, 11.5 flow numbers are allowed when using a combination of one 2W duct nozzle, one 1/2N electrostatic precipitator nozzle,
one I plenum nozzle, and four two-flow appliance nozzles. Contact the Applications Engineering Department for additional Information.
TANK/ENCLOSURE
ASSEMBLY
NOTE 1: THE PIPE CONNECTION FROM TANK CENTER TO TANK
CENTER CANNOT EXCEED 8 1/2 IN. (215 mm). ALSO, OEM
RELEASE/BRACKET ASSEMBLY CAN BE UTILIZED WHEN
MANIFOLDING 3.0 GALLON TANK
NOTE 2: ONLY 8 GALLON TANKS CAN BE MANIFOLDED.
NOTE 3: THE BURST DISC THAT IS PART OF THE TANK ADAPTOR/
BURST DISC ASSEMBLY MUST BE REMOVED AND
MODIFIED. SEPARATE THE ALUMINUM DISC MATERIAL
FROM THE PLASTIC GASKET. DISCARD THE ALUMINUM
DISC MATERIALAND REINSTALLTHE PLASTIC GASKET
BACK INTO THE TANK ADAPTOR/BURST DISC ASSEMBLY.
NOTE 4: THE IN-LINE BURST DISC ASSEMBLY (PART NO. 416970)
IS TO BE MOUNTED AS CLOSE TO THE TANK OUTLET AS
POSSIBLE AFTER SYSTEM DISCHARGE, THE ASSEMBLY
MUST BE DISASSEMBLED AND A NEW BURST DISC
INSTALLED.
3.0 3.0
GALLON GALLON
TANK TANK
3.0 GALLON REGULATED RELEASE 008127
ASSEMBLY OR 3.0 GALLON REGULATED
ACTUATOR ASSEMBLY
DOUBLE TANK
NITROGEN
CARTRIDGE OR
(LT-A-10130
CARTRIDGE -
REGULATED
ACTUATOR ONLY)
R-102 Restaurant Fire Suppression Manual
DISTRIBUTION PIPING REQUIREMENTS (Continued)
Distribution Piping Requirements - 6.0 Gallon ManIfolded
System (Continued)
This configuration consists of two 3 gallon tanks. Both tanks are
connected to a common manifold tee and are pressurized from
a single double tank (Part No. 73022) nitrogen cartridge in the
regulated release assembly. See Figure 4-136. Note: A tank
mounting bracket can be utilized instead of the tank/enclosure
assembly.
3/8 IN.
SECTION 4— SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-69
Distribution Piping Requirements - With Independent Pipe
Runs
Independent pipe runs can also be used with the regulated
release assembly and the tank/enclosure assembly or tank
mounting brackets. See Figure 4-137. When manifolding is not
used, each of the two 3 gallon tanks utilize the piping limitations
of a single tank system.
USE HOSE! ___ SEE
GROMMET NOTE
PACKAGE \ I NO. 1
(PART NO.
418511)
8/8 IN, 3/8 IN.
SUPPLY SUPPI
II' 3/BINBRANCH
-IN-LINE BURST DISC
ASSEMBLY - SEE NOTE NO. 4
HOSE!
I GROMMET
PACKAGE
(PART NO.
418511) 111.
REMOVE
BURST DISC -
SEE NOTE NO.8
r ililli-
3.0 GALLON 3.0 GALLON
TANK TANK
4 DOUBLE TANK
NITROGEN
CARTRIDGE
OR LT-A-101-30
CARTRIDGE
(LT-A-101-30 REGULATED RELEASE ASSEMBLY OR CARTRIDGE - REGULATED ACTUATOR ASSEMBLY REGULATED
TANK/ENCLOSURE ACTUATOR ONLY)
ASSEMBLY
FIGURE 4-137
000788
Note: If an expellant gas hose is to be used for a second tank
in an adjacent tank enclosure or tank bracket assembly, the
second tank will need to be installed on the left side of the
AUTOMAN Regulated Release, with the outlets a maximum of
8.5 in. (215 mm) from center to center, similar to the manifolded
system in Figure 4-136. Otherwise, the second tank will require
1/4 in. NPT pipe instead of expellant gas hose.
FIGURE 4-136
ANsuLI etin
by Tyco Fire Suppression & Building Products
One Stanton Street
Marinette, WI 54143-2542
www.ansul.com
Bulletin No. 5653
DATE: April 29, 2010
TO: All Authorized ANSUL R-1 02 System Distributors and OEMS's
FROM: Product Management - Restaurant Systems
SUBJECT: Non-UL-Listed Fire Protection for Conveyor Pizza Ovens
The UL300 Standard: Fire Testing of Fire Extinguishing System for Protection of Commercial Cooking
Equipment does not currently address a test protocol for conveyor pizza oven protection. However, in many
jurisdictions, the Authority Having Jurisdiction has required fire protection for conveyor pizza ovens. In the
past, appliances not addressed in the UL300 test standard have been protected by following listed protection
options for other appliances with similar operating characteristics. Generally, these appliances presented
a more severe hazard than the appliance in question. In the case of conveyor pizza ovens, chain broiler
protection was utilized.
To confirm recommended protection, we recently conducted a conveyor pizza oven fire test following the
chain broiler test protocol outlined in UL 300, substituting fatty hamburgers with a grease coated pizza crust,
to emulate the cooking process used by conveyor pizza ovens.
Prior recommendations for conveyor pizza ovens larger than the two 1 N horizontal nozzle limitations for a
chain broiler, suggested using four 1 N nozzles, each positioned at the end corners and aimed diagonally
across the chain within the oven. Based on the actual fire testing, we now recommend two 245 nozzles
per conveyor: one nozzle is positioned at the inlet and one nozzle is positioned at the outlet of the conveyor
pizza oven on the same side of the oven and aimed at the opposite corners. Utilizing two 245 nozzles
as recommended is suitable protection for conveyors larger than the limitations for a chain broiler but not
exceeding 38 in.(96.5 cm) wide x 70 in (177.8 cm) long.
If you should have questions pertaining to this bulletin, please contact your U.S. District Manager or
International Area Manager; or call Technical Services as noted below.
Main Telephone Numbers: 1-800-862-6785 or 1-715-735-7415
Customer Services: Press 2 • Technical Services: Press 4 • Training Services: Press 6 • Quality Assurance: Press 8
Literature Fax Orders: 1-800-543-9822 or 1-715-732-3474
FlO 156
GENERAL INFORMATION
1. Nozzles must be located 2-8 in. (5-20 cm) into the center of the
duct opening, discharging up. See Figure 1.
2 -8 IN.
(5-20 cm)
FIGURE 1
000173
In installations where a UL listed damper assembly is
employed, the duct nozzle can be installed beyond the 8 in.
(20 cm) maximum, to a point just beyond the damper assem-
bly that will not interfere with the damper. Exceeding the maxi-
mum of 8 in. (20 cm) in this way will not void the UL listing of
the system:
Previously listed 3 flow number and 5 flow number duct pro-
tection detailed in earlier published manual, Part No. 418087-
06, can also still by utilized.
DUCT SIZES UP TO 50 IN. (127 cm)
PERIMETER! 16 IN. (41 cm) DIAMETER
One 1W nozzle (Part No. 419336) = one flow number
50 in. (127 cm) perimeter maximum
16 in. (41 cm) diameter maximum
DUCT SIZES UP TO 100 IN. (254 cm)
PERIMETER/ 32 IN. (81.3 cm) DIAMETER
One 2W Nozzle (Part No. 419337) = two flow numbers
100 in. (254 cm) perimeter maximum
32 in. (81.3 cm) diameter maximum
The chart below shows the maximum protection available from
each duct nozzle.
Part 3.0 Gallon 1.5 Gallon
Description No. System System
2W Nozzle 419337 Maximum Maximum
100 in. (254 cm) 100 in. (254 cm)
Perimeter Perimeter
1W Nozzle 419336 Maximum Maximum
50 in. (127 cm) 50 in. (127 cm)
Perimeter Perimeter
For a plenum, either single or "V" bank, with a linear extension
longer than 10 ft (3.1 m), each bank may be protected using one
1 nozzle every 10 ft (3.1 m) or less depending on the overall
length of the plenum. See Figure 12. The nozzles may point in the
opposite directions as long as the entire plenum area is protected,
and the 10 ft (3.1 m) limitation is not exceeded. See Figure 13. The
nozzle positioning shown in Figure 14 is not an acceptable method
of protection because the plenum area directly under the tee is not
within the discharge pattern of either nozzle.
FIGURE 12
000206
10 FT (3.1 m),"'
MAXIMUM
10 FT (3.1 m)
MAXIMUM
10 FT (3.1 m)
MAXIMUM
30 FT (9.1 m)