HomeMy WebLinkAbout2961 STATE ST; ; FS1000227/15/24, 3:26 PM FS100022 Permit Data
City of Carlsbad
Fixed Systems Permit
Permit No: FS100022
Job Address: 2961 STATE ST Status: ISSUED
Permit Type: FIXSYS Applied 10/21/2010
Parcel No: 2032930500 Approved: 10/21/2010
Lot #: 0
Reference No.: Issued: 10/21/2010
PC #: Inspector:
Project Title: LE PASSAGE HOOD & DUCT PLAN CHECK & INSPECTION
Applicant:
NATIONAL PROTECTION INDUSTRIES
77570 SPRINGFIELD LANE
PALM DESERT, CA 92260
619-345-1816
Owner:
CARROLL JUDITH A
C/O LEN ZANDER
11611 SAN VICENTE BLVD #740
LOS ANGELES CA
Fees ($) F Add'l Fees ($) Total ($) Balance ($)
130 0 130J L- 0
about:blank 1/1
p. FILE C01" System Design
3-1 INTRODUCTION
This chapter introduces the designer and installer to the process whereby Range Guar
d
W
e
t
Chemical Systems are designed. It outlines the process. introduces the [imitations imposed on desi
g
n
by system hardware. as well as those mandated by performance considerations.
As the designer becomes familiar with this material. they should remember that analysis and design
is a careful, step-by-step process. All steps must be followed, none can be omitted. and all uniq
u
e
aspects of a given application must be taken into account if the resulting fire-suppression systern is
to deliver the desired results.
*
All systems must be designed in accordance with the latest edition of NFPA Standard 1 7A. "Stand
a
r
d
for Wet Chemical Systems", and other applicable NFPA standards. All configurations are UL and
LJLCORD 1254.6 Listed to Underwriters Laboratories 300. 1994 Edition, unless otherwise noted
.
3-2 DESIGN PROCEDURE
This section covers the design aspects of the Karbalov systems. It contains all the necessa
r
y
information to design a complete system including nozzle placement. detector placement. cyl
i
n
d
e
r
sizing, piping limitations and awdliary hardware.
3-2.1 General Design Procedure
Analysis and design should be approached as a methodical process. and performed step-by-step.
Only when all the steps are followed is the resulting system likely to perform as desired. If an
y
s
t
e
p
is omitted. it is probable that the system will not function as well as it should. The steps in the
analysis and design process are:
Hazard analysis
Nozzle selection, number and location
Cylinders (Number. size. and location of cylinders)
Detector selection
Piping layout
Awdliaiy requirements
3-2.1.1 HAZARD ANALYSIS
Sketch out the kitchen exhaust hood and appliances, taking note of the path of egress for remote
p
u
l
l
station location, discuss with owner the placement of cylinders and control heads. automatic fuel
shut down device locactons. and power shutdowns required
Consult \FPA 17A and 96 for design guidelines Record the following and include in your sketch:
Size of exhaust hoodsi and ethaust duct opening(si
5ze and fuel tu-pe of appliances tuake note if open flames are sufficiently separated from
combustible cooking media)
Size of gas lineisi feeding appliances
Building or local alarms
P9L27OO 11 Jt.-'.ucv 2007
System Design 4
Make- up a ir or auxiliary equipment
Are the correct hand portable fire extinguishers present or are addtticnal exinuishers required
3-2.1.2 NOZZLE SELECTION AND LOCATION
eiecr the number ar.d rvpeis; of r',ozzle(si needed and locate them so tha7. the enure hazard is
co. ereci Lse the cm erae distribution specifications for each nozzle type to determine the number of
d:schare nozzles required to del:er the necessary cluantiv of wet chemical given nozzle placement
appropriate to the hazard.
3-2.1.3 CYLINDER DETERMINATION (NUMBER, SIZE, AND LOCATION OF CYLINDER(S))
Determine the number of nozzles required. whether additional agent or nozzles may be needed. and
select [he cylinder which vill supply the needed amounts we[ chemical. After determining the qua.ntiry
and types of wet chemical needed to control the hazard itself, determine whether any special
conditions necessitate additional wet chemical quantities andor nozzles. For example, it may be
necessary to adjust the agent discharge race in order to offset the effects of ventilation, or it may be
necessary to screen openings in an enclosure to prevent wet chemical leakage through those
openings.
3-2.1.4 DETECTOR SELECTION
Detector selection will depend on the response speed required. the probable hear level and rate of
spread of the fire. The detectors sense the heat energy released by the combustion of fuel and oxygen.
Upon detection of a fire. the detection system sends a signal to the system control head(s) which
initiates the wet chemical discharge. The most commonly used detectors are the:
Fixed-temperature rhermo-bulb or fusible link
2. Fixed-temperature rate-compensated thermostat
32.1.5 PIPING LAYOUT
Careful piping layout assures that the agent reaches the distribution nozzles appropriately, and that
piping parameters are not exceeded. These parameters involve pipe lengths. the number of elbows.
and other factors such as the allowable distances (equivalencfeet) from Cylinder and Valve Assembly,
These parameters are discussed in detail in the design examples in Paragraph 3-8.
3-2.1.6 AUXILIARY REQUIREMENTS
Controls are required to turn off forcedra.fi. ventilation systems, fuel or combustible-liquid pumps
convevcrs and so on.
'it-li P\ 9i2OO
V. System Design
3-3 DESIGNING FOR APPLIANCE PROTECTION
To determine the number and size of cJinders required for each system, the term 'flow number is
used. A now number is assigned to each type of nozzle used in the Range Guard system and is a
relative indicator of the discharge rate of each nozzle. Refer to Table 3-1 for coverage on a specific
appliance.
ADP nozzles have a flow number of one. The ADP nozzle is used to protect a variety of cooking
appliances. These appliances are solid fuel charbroilers, upright broilers. low proximity Split Vat
Deep Fat Frvers. gniddles and chain broilers. Adcliticnallv, the A-DP nozzle is used to protect the duct
and plenum areas of the hood.
The F nozzle has a flow number of r.vo and is used to protect frvers and lava rock broilers.
The 'R' nozzle has a now number of one and is used to protect a burner range.
The GRW nozzle has a flow number of one and is used to protect a radiant charbroiler or a wok.
The LPF nozzle has a flow number of two and is used to protect a deep fat fryer requiring a low nozzle
height.
The LPR nozzle has a now number of one and is used to protect a four burner range requiring a low
nozzle height (eg, range with a back-shelf or an integral broiler).
The DM nozzle has a now number of three and is used to protect the mesquite log charbroiler.
After completing your design for locating nozzles over the cooking appliances to be protected.
determine the total of the flow numbers required, including those for the plenum and exhaust duct(s).
This will render the required cylinder size for the total number of flow points.
Note: Protection of combination appliances requires a seperate nozzle for each appliance.
While nozzles can be placed any-where in the areas denoted in the following sections, Al caution should be exercised regarding placement and aiming of nozzles from the back of CAUTION the appliance toward appliance operators.
?N 927IOO 3.3 Jn.ary 2007
System Design
3-3,1 Nozzle Height
%leasurerneriL of the nozzle heights are to be from the tip of the nozzle to the top of the appliance
When using the grid style nozzle location the nozzle height is measured from the nozzle tip to the
aiming point When using perimeter style nozzle location the nozzle height is measured from the
nozzle tip straight down to the appliance surface.
EXCEPTION: Woks are measured to the inside bottom of the wok.
3-3.2 Nozzle Aim
Correct amng of the appliance nozzles is extremely important to the performance Of the system Care
should be taken to insure accurate aiming and that the conical spray from the nozzle is not
obstructed Aiming must comply with the parameters outlined in the design section of this manual
3-3.3 Hazard Area
The hazard area is the actual size of the portion of the appliance which can be used for cooking. The
physical width of an appliance does not represent the width of the hazard area. The thickness to the
appliance wall must be deducted to arrive at the hazard area width.
All appliances being protected must be shut off automatically upon system actuation. CAUTION
The appliance area 15 the size of the appliance that includes the cooking area (fry pot or vat) and the
integral drip board area.
NOZZLE HEIGHT MEASURED
FROM TOP OF APPLIANCE
Appliance Area
— Width —4
Nozzle Height
Hazard Area Measured from
- Width ' lop of Cooking
-,
Surface
00 00 I I
14- Hazard Area
I Width/Length
Nozzle Height
Measured from
Top of Cooking
Surface
Hazard
L
CHARB ROlLER
Appliance Area
4— Length —*
Hazard Area
+ Length
Drip
Board
Side View Front Section View GAS RANGE
FULL VAT DEEP FAT FRYER
Figure 3-1. Examples of Hazard Areas for Typical Appliances
.Janr, 2007 31.4 a: 27 1 cc
System Design
3-4 APPLIANCES
Table 3-I lists the various appliances and nozzle type used to protect that appliance.
Table 3-1 Appliance References
Appliance Reference Nozzle Flow Number
Deep Vat Fryer
Single Vat Deep Fryer with Drip Boards Paragraph 3-4 1 F 2
18-1 2 in. _-(24-1 2 in. Deep Fat Fryer Paragraph 3-4.2 (2i F 4
Split Vat Deep Fat Fryer Paragraph 3-4.3 F 2
14 in x 14 in, t356 rum x 356 mm) Deep Fat Fryer Paragraph 3-4.4 F 2
Single Vat Deep Fryer with Drip Boards less Utan 1 in
(25 mm)
Paragraph 3-4.5 1 F 2
Split Vat Deep Fat Fryer )Low Pro:cimitv) Paragraph 3-4.6 P 1
Deep Fat Fryer (Low Proximi Paragraph 3-4.7 LPF 2
Krispv Kreme Model 270 dh Doughnut Fryer Paragraph 3-4.8
Ranges
Four-Burner Range Paragraph 3-4.9 R
Two-Burner Range Paragraph 3-4.10 R
Single Burner Rance
j Paragraph 3-4.11 R
L Four-Burner Range Paragraph 3-4.12 LPR
Broilers
Upright Broilers Paragraph 3-4.13 ADP
Charbroiiers (Lava. Pumice. Ceramic, or Synthetic Rock) Paragraph 3-4.14 F 2
Gas Radiant.Electric Charbroiler
,
Paragraph 3-4.15 GRW
atural or Mesquite Charcoal Charbroiler Paragraph 3-4.16 ADP
Mesquite Logs Charbroiler Paragraph 3-4.17 DM 3
Chain Broiler (Closed-Top) Paragraph 3-4 18 ADP
Chain Broiler (Open-Top) Paragraph 3-4.19 ADP
Griddle - Flat Cooking Surface Paragraph 3-4.20 ADP
Wok Paragraph 3-4.21 GRW
Tilt Skillets (Braising Pans) Paragraph 3-4.22 F 2
P N 9 '27 tOO 11.3 ,Jacu.3ry 2007
AIM POINT:
27 MIDPOINT OF
(686 mrrr)MIN HAZARD AREA
18 in
23 fl MAX \ (564 mm
MAX
DRIP BOARD \
NOZZLE LOCATION
45' OR MORE FROM
HORIZONTAL 11
AIM POINT:
MIDPOINT OF
HAZARD AREA
HAZARD AREA
4 13 ir (457 trim)
MAX.
FRONT VIEW
13 ;n. (457 mm) MAX. I
4 'I 23 in (564 mm) MAX
APPLIANCE AREA
SIDE VIEW
System Design
3-4.1 Single Vat Deep Fat Fryer With Drip Boards
Table 3-2. F Nozzle Coverae Area
Items Parameters
Maximum Hazard, Area ('3 in x IS in (437 mm x 457 mrnl
Maximum Appiance Area (wrh drip boa-d! 18 in x 23 in (457 mm x 584 mm:
Nozzle Arm Midpoint of hazard area
Nozzle Location from top of appiiance at angle of 45Z or 27 in. 686 rnrni Mm.
more from the bor1zontai 45 in (11 43 mm , Max.
AN F NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
45 in. 1143 rnrn( ,,/"'
MAX.DIAGONAL FROM
AIM POINT
Sir, (1143 mm) 45 ri 114) mm) MAX AX
AN F NOZZLE MAY BE
LOCATED ANYWHERE
WITHIN THE GRID
DRIP BOARD
Figure 3-2 Single Vat Deep Fat Fryer
Jania.r,. 2007 3-6 P 'i 9:27(00
System Design
3-4.2 18-12 in, x 2 4- 1 2 in, Deep Fat Fryer With Drip Board
Table 3-3. F Nozzle Coverage Area
Items Parameters
ML -nL1rn Hazard -'jea j 1S-L2 in. x IS in. (470 mm x 457 mmi
Maximum .Appliance Area wth drip board! 16-12 in .x24-112 in. (470 mm x 622 mm)
Nozzle Aim MidpoLnc of module area per nozzle
Nozzle LocaLion (at an angle of 432 or more from the horizontal
above each module)
27-1.2 In. (699 m) Mm.
45 in. (1143 mm) Max.
Module Area (half of hazard area! (3-1 2 in. 9 in. (470 mm x 229 mm!
AN F NOZZLE MAY BE i CCATEO - AN F NOZZLE MAY BE LOCATED ANYWHERE WITHIN THE GRID 43 M '\ 11m) 11nrn r ANYWHERE WITHIN THE GRID
\ MAX. MAX. DIAGONAL PROM
i mj
" AIM POINT
(1143 mm)
45— in
IMAGINARY LINE (699 I
MIN
MIDPOINT OF
MODULE AREA
FRONT OF 13-1!2 in. APPLIANCE (40 irn
IL_ _
B n p+— I -229 nr' I (229 nrn)
24-1()
(622 nm)
MAX.
SIDE VIEW
2 F NOZZLES ARE REQUIRED FOR THIS APPLIANCE
AN F NOZZLE MAY BE AN F NOZZLE MAY BE
LOCATED ANYWHERE j— LOCATED ANYWHERE
WITHIN THE GRID " WITHIN THE GRID
NCZZLE 0C AflO
45i OR MORE FROM HORIZONTAL ITYP)
AIM POINT:
MIDPOINT OF
HAZARD AREA
HAZARD AREA
DRIP BOARD
3-1(2 in. )474 rnmI MAX
24-1:2 in, (522 flI MAX.
APPLIANCE AREA
SIDE VIEW
Figure 3-3 18-1.2 in. x 24-1 '2 in. (470 mm x 622 mm! Deep Far. Fryer
P N 9 2700 3-7 JA.flIiA7fl, '2007
NOZZLE LOCATION
45 OR MORE FROM
HORIZONTAL
AIM POINT.
MIDPOINT OF
HAZARD AREA
DRIP BOARD
2
HAZARD AREA
15 in. (381 mm( MAX.
21 in (533 rnml MAX.
APPLIANCE AREA
SIDE VIEW
AIM POINT
MIDPOIN
666 mm 5N HAZARD AREA
15 n. / •. .i/ 21 in. 3/ 1 MAX
DRIP BOARD
4; 056 mrn(
MAX.
FRONT VIEW
System Design
3-4.3 Split Vat Deep Fat Fryer
Table 3-4. F Nozzle Coverage Area
Items Parameters
Maximum Hazard Area [4 in x 15 in. (356 rnm x 38 1 mm)
Maximum Appliance Area (with drip boa-rdi 14 in. x 2 I in. (356 mm x 533 mm
Nozzle Arm Miclpoinm of module area per nozzle
Nozzle Locamion (am an angle of 45 or more from the horizonmal
aboc each mr-dulel
27 Ln.
45 in.
I686 mm) Mm.
(It 43 mm( Max.
AN P NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
45 in (11.
DIAGONAL FROM
AIM POINT
45 in. (1143 mm( 45 in. (1143 mmi AX. MAX
AN F NOZZLE MAY BE
LOCATED ANYWHERE
_ITHINT GRID
'I
FigLire 3-4. Split Vat Deep Fat Fryer
J.anuar\ 2007 P'\ 9 27 (iC
System Design
3-4.4 14 in. x 14 in. (356 mm x 356 mm) Deep Fat Fryer
Table 3-5 F Nozzle Coverage Area
Items Parameters
Maximum Hazard Area 14 in. x 14 in 355 mm x 356 mm)
Maximum Appltance .rea with drip board) 14 in. x24-L2 in. (3-56- mm x 622 mm)
Nozzle Arri Midpoint ol hazard area
Nozzle LocatIon I from lop ,-,[ appliance at an anale of 45 or more
From ihe horizontal,
27-1.2 in. 1686 mm) Mm.
43 in i. 1143 mm) Max.
AN P NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
AN F NOZZLE MAY BE
LOCATED ANYWHERE
N THE GRID
DIAGONAL FROM
AIM POINT
45 in. (1143 mn 1
MAX 45 in, (1143 mm)
MAX
NOZZLE LOCATION
45.ORTMOREFROTM
HORIZONTAL
y
MIDPOINT OP
27-112 in. HAZARD AREA
1699 cnn) MIN
/
AIM POINT:
MIDPOINT OF
.-
- HAZARD AREA
14 in
IWIAX
356 mm)/
24-112 in. HAZARD AREA
2 mm) MAX /
DRIP BOARD
DRIP BOARD \ \ 14 in. (356 mm) MAX.
24-112 in. 1622 mm) MAX.
14 in (356 mm) 'MAX APPLIANCE AREA
FRONT VIEW SIDE VIEW
Figure 3-5. 14 in. x 14 in. 1356 mm x 356 mm) Deep Fai Fryer
P N 9 12' I.0o
System Design
3-4.5 Single Vat Deep Fat Fryer (with Dripboards less than 1 in. [25 mm])
Table 3-6 F Nozzle Coverage Area
ttCLIL raraiuccrs
Maximum i-{azard Area 24 u'. x 24 in. 610 mm x 610 mm;
Maximum Appliance Area with drip boardl 24 in x 25 in. 1610 mm x 635 mm)
Nozzle A.m i Midpoint of hazard area
Nozz;e Location at mv point on or within the perimeter
i of the hazard area;
2/-1:2 in. (699 mm; Mm.
46 n. 11168 mmi Max.
25 in.
(635 mr
MAX.
/
24 in.
4 (610 mm)
MAX.
CATE THE NOZZLE ANY HERE
(THIN THE PERIMETER OF THE
%ZARO AREA. AIMED AT THE
OPOINT OF THE HAZARD AREA,
46 in.
- (1164mm)
MAX
/ I 46 in.
164 mm! 4 F MAX.
27-12 in.
I (699 mm)
MIN.
- TOP OF APPLIANCE 4
AIM POINT: MIDPOINT SAMPLE NOZZLE PLACEMENT.
OF HAZARD AREA ANYWHERE WITHIN THE
SHADED AREA
FRONT VIEW
Figure 3-6 Single Vat Deep Fat Fryer twith Dripboards less than i in (25mm)
Jinii;: iOC7 3-IC
System Design
3-4.6 Split Vat Fryer (Low Proximity Application)
Table 3-7. ADP Nozzle Coverage Area
Items Parameters
Maximum Hazard Area 14 in. x 15 in. (356 mm x 38 1. mrni
Appliance Area (with drip boardi 14 in. x 2 (in. (356 mm x 533 mm(
Nozzle Aim Midpoint of hazard area
Nozzle Location (at any point on or within the perimeter
oldie hazard areal
16 in (406 mm) Mn.
2 n (686 mml Max.
LOCATE THE NOZZLE ANYWHERE
WITHIN THE PERIMETER OF THE
HAZARD AREA. AIMED AT THE
MIDPOINT OF THE HAZARD AREA
27 in.
(686 mm)
MAX.
/
15 1
7\I/ / /
MITI )21 in. J381 A (533 l
A
/
/ DRIP BOARD
14 in. 4 (356 rnrfl)
MAX.
TOP OF APPLIANCE
AIM POINT MIDPOINT
OF HAZARD AREA
1717
I i
27 in. N "
/ ' I ' I /
I / , I 16:n.
I / ' I (406 mrn(
MIN
AMPLE NOZZLE PLACEMENT'
ANYWHERE WITHIN THE
SHADED AREA
FRONT VIEW
Figure 3-7. Split Vat Fryer (Low Prodrniry Application!
P 9))7(0() 1-( -
System Design MP
3-4.7 Low Proximity Nozzle for Deep Fat Fryer
Table 3-8. LPF Nozzle Coverage Area
Items Parameters
Iaximum r-lazarcl Area 14 in x 15-1 2 in (355 mm x 394 mm) loralesc vac side
\Iacomum Appliance Area (with drip boa-i-di 1 14 in.x 23-1 4 in. (356 mm x 591 mm)
Nozzle Aini Midpoinc of appliance area (includes drip board)
Nozzle Locacton )rco 01 appliance) 1 12 in. 305 mm) ),lm. - offset from cencer shall nor
exceed 3-1.2 in. 59 mini
See Table 3-9 for Nozzle OlTser [riformarion and 24 in 1610 mm) Max. - ofiser from cenrer shall not:
Tabie 3 10 for minimum pipe length co preveni splash exceed t3-1,2 in. (343 rnml
from We cylinder co a LPF Nozzle prorecLing a freer
Table 3-9 Nozzle Offset Ai Given Heights
Nozzle Tip Height Distance From Center
12 in. (305 mm) 3-1/2 in. (89 mm)
14 in. (356 mm) 5-1364 in. 1132 mm)
l6 in. (406rnm) 6-1316bi.(173mm)
18 in. (457 mm) 8-1/2 in. (2 16 mm)
20 in. (508 mini 10-1364 in 1239 mm)
22 in. (559 mm) 11-13i16 in. (300 mm)
24 in. (610 mini I 13-1/2 in. (343 mm)
Table 3-10. Pipe Limitations for LPF Nozzle
Minimum Pipe From Cylinder Minimum Number of Minimum Total Pipe Required For
Pipe Size Discharge Port to First LPF I Flows in Complete All Remaining Nozzles Beyond the
Nozzle Linear Pipe & Fittings I System First LPF Nozzle
Linear Pipe & Fittings
12 in 7-1'2 ft. 2 miandit; Bull Tee B 7in (j70 mm) and One Full Tee
Run and Bull Connecrons
-r
3.4 in. and I Ln I I. Eqruvalenr Feet (3 mi of S ( 5-13.64 Equivalenc Feer II 6 m of
l2in.Pipe 12in.Pipe
For pipe sizes larger cLan I 2-inch. use the formulae below for che equi';alenr lenrh as measured in
1 2-inch pipe
I foc I mere:, of 3 4-inch 19 mnni pipe equals 0 254 equr;a.ler.r Feet of I 2nch i 1 3 mini pipe.
I tooc merer of 1-inch 125 mini pipe equals 0079 equiea.Ienr leer of I 2-inch '13 mm pipe.
ianua'-' 2007 ).12 P N 9127100
14m. (356 mm) MAX
/
15-1/2 in £
/394 mm)
MAX
/
23-1/4n.
(59) mm)
MAX.
System Design
AN L?F NOZZLE MAY BE LOCATED
ANYWHERE MTHIN THE GRID
24n
(510 mm)
MAX k -
12 in.
(305 mm) AIM POINT: MIDPOINT OF
PPLIANCE AREA
NCLUDES DP BOARD)
FRONT VIEW
13-112 in. (343 mm)
MAX. OFFSET
FROM CENTERLINE
AN LPF NOZZLE MAY BE LOCATED
/ ANYWHERE WITHIN THE GRID
24 in. 1 (6 10 3-1r2 in. (89 mm)
i 12 in.MAX MAX. OFFSET
I (305 mm) FROM CENTERLINE
MIN I I
AIM POINT: MIDPOINT OF
APPLIANCE AREA
(INCLUDES DRIP BOARD)
HAZARD AREA
DRIP BOARD
15-1/2 in. (394 mm) MAX.
23-1/4 in. (591 mm) MAX.
APPLIANCE AREA
SIDE VIEW
Figure 3-8. Low Proxirniry Nozzle for Deep FaL Fryer (LPF)
P N 912700 2. janr./3ry 2007
3-12n. .•., -
89 rrrA
MIN è6 -
33 in
338 'mr
V
MAk
---
-
-
(4 93(0. -
(2362 rnrni
-
LOCATE NOZZLES 3-i2 n.189 001 TO
6-1(20. (155 ,m) OUTSIDE THE
- PERIMETER OF THE APPLIANCE. ALONG
THE FRONT AND BACK EDGE WITHIN
HEIGHT PARAMETERS.
I
MAXIMUM NOZZLE HEIGHT
29-1(2 in, 1743 rorr -
EACH NOZZLE (S AIMED -St
MIDPOINT OF MODULE
System Design
3-4.8 Krispy Kreme Model 270 d,h Doughnut Fryer
Eidht ADP nozzles P B 120011 i. are dedicated to protect this appliance
Table 3-11 Eight .-\.DP Nozzles Coverage Area
Items Parameters
N1axrn urn Depth (front-to-back I 33 in. (840 rnrni
urn Length (left-io-rightl 93 in. (2362 rnmi
Nozzle Location Oined up on both sides o the appliance. 3-1 2 inches i 89 mm) Mm
front and back outside perLeter of the cooking area 6-1.2 in 165 mmi Max.
Nozzle Fleight (measured from The top of the appliance to the 22-1 2 in. (72 rnm( Min
tip of We nozzle) 29-1 2 th (749 mm) Max.
Maximum Module (aiming points is the centerline of [he 3:3 in (538 mm x23- 1,4 in. (591 rnrnl
hazard area - center of each module of the uniti
93 in.
(2362 0101)
6.5 - - - MINIMUM NOZZLE HEIGHT
22-1 2 in. 1522 0r0(
CENTERLrNE
333 - . ---- FRONT TO-BACK
-IMING ?DINT
-
- - - TYPICAL
Dir.1ENSIC-NS ENToLINo TOP 3P APUA15CE
1-RE 1.IAAIMUMS NOZZ..o Mr,OULE
2325n.,i2323'r .,2325i._
591 rorrI 53 rnrrI 531 -rim 551 rnml
Figure 3-9. Krispy Krerne Model 270 d.h Doughnut Fryer
System must use a complete six-gallon RG-600 cylinder for proper protection. Maximum piping
limitations can be taken from the listed RG-600 cylinder size piping parameters (see Table 3-12)
The minimum pipe length, to prevent splash, that is required between cylinder and closest cooking
appliance nozzle is listed below.
Table 3 12. Krispy Kreme Model 270 d.h Doughnut Frier ?slinrnum Pipe Length
Piping Size Minimum Allowable Pipe
12 in. 1 1:3mrn 1 - 39 Equivaieni feet
1 2 in. (13 mm: 27 Linear feet
.Izn'rv2ItU7 -14 P 9027(01D
System Design
3-4.9 Four Burner Ranges
Table 3-13. R Nozzle Coverage Area - Four Burner Range
Items Parameters
Maximum Hazard Area 1 23 in. x 23 in. (711 mm x 711 trim)
Nozzle Aim Midpoint of Hazard Area
Nozzle Location - .-thiwhere .vfthin the area of a circle
generated by a 9 t229 mm) radius about the midpoint
Note: Shape of burner not importt.
20 in. (508 mm) Mm.
42 in 1067 mm) Max
18 in. (457 mm) DIA
- 42 in. (1067 mm) MAX.
(FROM TOP OF RANGE)
A R NOZZLE MAY BE
I LOCATED ANYWHERE WITHIN
THE SHADED AREA
20 in. (503 mm) MIN. AIM POINT: MIDPOINT OF
(FROM TOP OF HAZARD AREA
23 in. (711 mm)
I / ® y 14 in. (356 mm) MAX. MAX. HAZARD
,
4 /BURNER CENTERLINE AREA LENGTH
/ / TO CENTERLINE
14 in. (356 mm) MAX.
BURNER CENTERLINE
TO CENTERLINE
1 23 in. (711 mm) MAX.
HAZARD AREA WIDTH
Figure 3-10. R Nozzle Coverage for a 4-Burner Range
P 9)27)00 J- 15 ,1.mry 7007
System Design
34.10 Two Burner Ranges
Table 3-14. R Nozzle Coverage Area - Two Burner Range
Items Parameters
\Iaxmurn Hazard Lenh 23 in. (7 11 rnrni
Nozzle .- m Midpoint of hazard ea
Nozzle Location - vhere vchin the area of a circle 20 Ln, (508 mm) MLn.
ereraced b. a 9 in 229 mr-ii radiis about the midpoint 42 to. 1 t06mm) Max.
Note: Shape oi burner not important
I 18 in. (457 mm) DIA.
- 42 in. (1067 mm) MAX.
(FROM TOP OF RANGE)
A R' NOZZLE MAY BE
' LOCATED ANYWHERE WITHIN
THE SHADED AREA
20 in. (508 mm) MIN. AIM POINT: MIDPOINT OF
(FROM TOP HAZARD AREA
OF RANGE)
23 in. (711 mm) MAX.
HAZARD AREA 14 in. (356 mm) MAX. BURNER
LENGTH / / CENTERLINE TO CENTERLINE
Figure 3-1 1. R Nozzle Coverage for a 2-Burner Rar.2e
U
Janua:-; -3.i:3 ?N9127[OO
System Design
3-4.11 Single Burner Range
Table 3-15 R Nozzle Coverae Area - Single Burner Range
Items Parameters
Nozzle Aim 7 in. 1178 trim ) from center of burner
Nozzle Location - where within the ea of circle 20 in. 1508 m) Min.
denera[ed by a 9 in 1229 mml radius abçur the ai m
- 42 in. 106 mm Max. point.
Note: Shape of burner not import(.
I
18 in. (457 mm) DIA.
42 in. (1067 mm) MAX.
(FROM TOP OF RANGE)
AC
20 in. (508 mm) MIN. - (FROM TOP
OF RANGE)
A 4R 'NOZZLE MAY BE
LOCATED ANYWHERE WITHIN
THE SHADED AREA
AIM POINT
7 in. (178 mm) FROM BURNER
CENTERLINE TO AIM POINT
CENTERLINE
Figure 3-12. R Nozzle Coverage for a I-Burner Range
P N 9271OO 3-1 7 )007
System Design
3-4.12 Four Burner Ranges (LPR), P/N B 120024
The bA pro;cimiry range top coverage provi des protecuon for a range [Op thSt has a back shel[ or a
broiler interal to the regular rage.
Table 3-16. LPR Nozzle Coverage Area - Four Burner Range
Items Parameters
Maximum Hazard Area 24 in. x 24 in. (6 10 mm x 6t0 mm)
Nozzle Aim . Midpoiric of hazard area
Nozzle Locarion - Dimension A in Figure 3-13 Refer to Table 3-17
Table 3-17. LPR Nozzle Parameters
Burner Spacing Centerline to Centerline
(Dimension B in Figure 3-13) Nozzle Height (Dimension A(
Note: Shape 01 - burner noi impor[an[. (centrally over the range and under shelLbroiler)
14 in. 1356 mm) 16 in. (406 mm) Mm.
20 in. (508 mmi Max.
Between 12 in. and 14 i.n.(305 mm and 432 mm) 16 in. - 17 in. (406 mm —432 mm)
Between 10 in. and 12 in. (254 mm and 305 mm) 16 in. (406 mm)
/i
DIMENSION 'A'
(NOZZLE HEIGHT
MEASURED TO
TOP OF BURNERS
N
AN LPR NOZZLE MAY BE
LOCATED OVER THE CENTER
OF THE HAZARD AREA, SEE
TABLE FOR NOZZLE HEIGHTS
AIM POINT: MIDPOINT OF
HAZARD AREA
21 n. '6'0
T1\
MAX. HAZA
AREA LENG
DIMENSICH B"
DIMENSION 'B'
24 ii. 615 mm; MAX.
HAZARD AREA WIDTH
Figure 3-13. LPR Nozzle Coverage for a 4-Burner Range )LPRi
Jz.nur. 20O 319 P" 9127100
15,
System Design
The minimum pipe length to prevent splash from the cylinder to a LPR nozzle protecting an appliance
is defined in Table 3- 18.
Table 3-18. Piping Parameters
Minimum length to LPR nozzle - linear: 9 ft. 12.7 m
2 Minimum length to LPR nozzle - equivalent: 12 ft. 13.6 ml
3 Minimum total length in system - iuear. 11.08 It. (3.4 mi
Note: If the LPR nozzle is disassembled for inspection or cleaning, reassemble the disc/core unit
with the center core •nLtb facing upstream. The flat side should face towards the threaded
nozzle cap. Refer to Figure 3-14.
DISCICORE
rASSEMBLY
I -. I NOZZLE
7CAP
NOZZLE
BODY Y NJ
y
FLAT
SURFACE
Figure 3-14. LPR Nozzle Assembly
PN9127100 3-19 Januar 2007
System Design
3-4.13 Upright Broilers
Table 3-19 ADP Nozzle Coverage Area
Items Parameters
Broiler Comparcmen \:th \laxi.mum internal Horizontal 1 30-1 4 in x 34 in. (768 mm x 864 mm!
Dimensions
Nozzle Aim Through gril toward the center of the grease drain-off
opening
Nozzle Location 1 Within the top 4 in. 1102 mm! of space in the broiler
compartment. Commonly mounted near the front
opening and directed inside the broiler
BROILER
COMPARTMENT
4 in. (102 mm) -
MAX.
EXHAUST
- DUCT
.SE
J -OFF
(BROILER DOOR REMOVED) RIGHT SIDE
NOTE: DIMENSIONS SHOWN ARE INSIDE BROILER COMPARTMENT
ADP NOZZLES SHOULD BE MOUNTED ON THE PERIMETER OF THE BROILER
TOP (SHADED AREA). IT SHOULD BE DIRECTED THROUGH THE GRILL
TOWARD THE CENTER OF THE GREASE DRAIN-OFF OPENING. NOZZLE
DISCHARGE SHALL NOT BE OBSTRUCTED BY ANY STRUCTURAL PART OF
THE BROILER.
Figure 3-15 ADP Nozzle Placement for Lpright Broilers
Januar. 200) 3-2) P N 9127i00
System Design
3-4.14 Charbroilers (Lava, Pumice, Ceramic or Synthetic Rock)
Table 3-20. F Nozzle Coverage Area
Items Parameters
\laimum Appliance Area maximum of two layers of 22 in. x23 Ln. (559 mm to 5-1 mm!
lava. pumice. or Stone)
Nozzle Aim Midpoinc of the hazard area
Nozzle Location (at angle of 45 or more from We 24 in. 1610 mmi \lin.
horizontal above grate area) s in (1219 mm! .1,1 ax.
AN F NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
48 In. (1219 mm) DIAGONAL FROM MAX AIM OIN AN F NOZZLE MAY BE
LOCATED ANYWHERE
WITHIN THE GRID
43,n. 1219 mm) 43 in (1219 mm)MAX. MAX
NOZZLE LOCATION .
85 OR MORE FROM
HORIZONTAL
AIM POINT: MIDPOINT
AIM POINT:
s
24n 610 mm) MIN OF HAZARD AREA
MIDPOINT CF
HAZARD AREA
000 000000 27
D 61 000
'I
0000 00
23 in (584 mm) MAX
APPLIANCE AREA
22n (559mm)
MAX. I
FRONT VIEW SIDE VIEW
Figure 3-16. Lava, Pumice. Ceramic, or Synr.heUc Rock Charbroiler
P N 9 27 tOO 3.7 •Jinuary 2007
System Design
3-4.15 Gas Radiant, Electric Charbroiler
Table 3-2 1 GR\V Nozzle Coverage Area
Items Parameters
Maximum Cookn 1 21 in. x 24 in. (333 mm to 610 ram)
Nozzle A Midpoint of Lhe bard ea above cookLg surface
Nozzle Location located at an angle of 43: or more from 24 in. (610 mm( Mm
die borizontal( . 4a In, (1219 mm. ;Max.
A GRW NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
8 n (1219 mm)
MAX / DIAGONAL FROM
/ AIM POINT
49 in. (1219 mm) 48 in. (1 219 mm)
MAX MAX. AGRW NOZZLE MAY BE
LOCATED ANY"VHERE
I F WIT IN THE GRID
24 m. f610,nrnI AIM POINT. MIDPOINT
MAX OF HAZARD AREA
NOZZLE LOCATION
45'CR MORE FROM FROM I
J- HORIZONTAL
2' fl 533 mm II/ AIM POINT
A/.
- MIDPOINT OF lb
- /1 HAZARD AREA
Lk &'l -1 i1
21 in. (533 rnn,) MAX.
24 in. (510 mm) APPLIANCE AREA
MAX.
SIDE VIEW FRONT VIEW
Figure 3-17 Gas RadianL.ElecLric Charbroiler
Ja:iar 2007 3-22 p N 1 9 i'
1
System Design
3-4.16 Natural or Mesquite Charcoal Charbroiler
The depth of mesquite charcoal pieces or charcoal is limited to 6 in. 152 mrni maximum. Mesquite
logs or wood are riot acceptable.
Table 3-22. ADP Nozzle Coverage Area
Items Parameters
Maximum Cooking Surface 24 in .x 24 in. 1610 mm x 610 mml
Nozzle Aim Midpoint of the hazard area above cooking surface
Nozzle LOCatIOn (at an angle of 45 or more from the 24 in. 1610 mm! Mm.
horizontali 48 in. ([219 m.-n) Max.
AN AOP NOZZLE MAY BE LOCATED
43 in. (1219 mm) ANYWHERE WITHIN THE GRID
MAX. DIAGONAL FROM
AIM POINT
43 in il219 mm) 49 in. (1219 mm) MAX MAX. AM ADP NOZZLE MAY BE
r LOCATED ANYWHERE
WITHIN THE GRID
\\Th/i
AIM POINT: MIDPOINT 4. 24 n. 610 mml MAX OF HAZARD AREA
NOZZLE LOCATION Z 0
45OR MORE FROM
/
HORIZONTAL
24 n I AIM POINT: '. 2
(613 mm) MIDPOINT OF
MAX. HAZARD AREA '
— in
- MAX. FUEL
- -6 in. 1152 mm)
24 in. MAX. FUEL
(610 mm) 24 in. (610 mm) MAX.
MAX APPLIANCE AREA
FRONT VIEW SIDE VIEW
Figure 3- 18 Natural or Mesquite Charcoal Charbroiler
P N 91 27! Co 3-2. jarILlar'; 2007
System Design
3-4.17 Mesquite Logs Charbroiler
Table 3-23. DI\.1 \ozzle Coverage Area
Items Parameters
Maximum Cooking Surface 30 in. x 24 in. 1762 mm x 610 mrn(
Note: if the cha.rbroiler has a blower, it shall be shut off when
the Range Guard system operates.
NOzZle Aim Midpoint olche hazard area above cookin2 surface
Nozzle Location located at an angle of 452 or more from the 1 24 in. 610 mmi Mm.
horizontal, 48 in. (1219 mm! Max.
Mesquite wood charbroiler may use wood chips. chunks, logs Depth 01 10 in. (254 mm) Max.
or any combination thereofl. The natural-charcoaL mesquite-
charcoal charbroiler may use charcoal
43 in. (12'4 mm)
MAX.
A 013 NOZZLE MAY BE LOCATED
ANYWHERE WITHIN THE GRID
DIAGONAL FROM
AIM POINT
43 in 11219 mml 48 in. 1219 mm)
MAX, MAX.
A GM NOZZLE MAY BE
LOCATED ANYWHERE
WITHIN THE GRID
AIM POINT: MIDPOINT
24 n. 60 mm) MAX. OF HAZARD AREA
\ --/ NOZZLE LOCATION \
45ORMOREFROM\ <' . 7.?
HORIZONTAL ' /.
AIM POINT:
MIDPOINTOFj-,
/ HAZARD AREA
------------- 24 in. (610 rnrn) MAX.
APPLIANCE AREA
SIDE VIEW
24
(610
MA/
0 in 1254 rnrm
Mp!LX FUEL
vt
-
30 in.
752 mm)
MAX
FRONT VIEW
— 10 in f 254 .Tim;
MAX. FUEL
Figure 3-19. Mesquite Logs Charbrotler
J,u',,ari 2007 3-24 , P N 9) 27(00
3-4.18 Chain Broiler (Closed-Top)
1. System Design 15
Table 3-24. Snle ADP Nozzle Coverage Area
Items Parameters
laxImurn Incernal Florizoncal Dimensions 23 x 29 in. 711 mm ; 737 mm
\ozde Locanon icencered vercicailv in the chain broiler Posicioned ac cne corner cC the chain broijer cunnel aimed
cunneI space abo;e the chani I ac opposite diagonal 01 the tunnel.
Pipe drop and 1itans 1 4 Lu. 6 mm
14 in. (6 mm)
PIPE DROP
NOZZLE CENTERED
VERTICALLY IN OPENING
ABOVE CHAIN
Figure 3-20. ADP Nozzle lnsrallaion for Closed Top Chain Broiler
P \ D 12 130 .2.5 .Jau.li1. 2007
System Design
F'
3-4.19 Chain Broiler (Open-Top)
Table 3-23. Dual ADP Nozzle Coverae Area
Items Parameters
\Iaomum Internal Broiler Tunnel Dimensions 23 in 29 in. 71 I mm x 737 mml
\laaimum E:rerna.I Top DOnensions 23 in 29 th. 71 1 mm x 737 mm)
First Nozzle Location Located at one corner of the chaui broiler tunnel and
aimed toward the opposite dia0cral corner of the tunnel
- spaced l-fttch 25 mrill back from the tunnel opening
S-cot-id Nozzle Location centered ocr the top cpenn2 of 12 in 305 mmi \Iin,
chain broiler from the [op surface
4a n. 11219 mm) Nlaa.
Drop pipe and fittings to the chain broiler 1 '4 in. (6 mmi
1,4 11
PIPE DROP
NOZZLE CENTERE
VERTICALLY
OPENING ABC',
CHA
SECOND NOZZLE
LOCATION - CENTERED
OVER TOP OPENING CF
BROILER
12 in. mIni MIN.
45 in. (1219 mm} MAX.
IA
PIPE DROP
r NOZ n. E:
CENTERED
VERTICALLY IN
OPENING ABOVE
C HAl 14
lI 11.
PIPE DROP
---------•-i TOP OPENING OF
BROILER
II 4a r 11219 'i'lPI MAX
scoiio NOZZLE.
ENTERED OVER
'OP OPENING OF
ROlLER
2 n 3G5 ,'nnli MIN.
3 rs 121.3 rnni
Hure 3-21 ,NDP Nozzle Installation for Open-Top Chain Broiler
The second nozzle must be used when there is any exhaust opening on the top of the
CAUTION appliance.
J4DI;aE, 2CCO 32i5 ij
S System Design
3-4.20 Griddle - Flat Cooking Surface (With or without Raised Ribs)
Table 3-26. ADP Nozzle Coverage Area
Items Parameters
Madmum Hazard Area 30 in. x 4'21 in. 762 mm x 1067 inin)
ozz)e Acm Ac a point 3 in. 76 mIni from the mcdpoinc of nazard
area
\:zz! Locac)on - any point on the perimeter of 1 13 in, (330 mm) Mm.
appliance 43 in. (1219 mm) Maz.
Note: Posicioncng' the nozzle dcrecdv over the appEice is
not permitted
55
30 in
(762 mi
MAX,
48 in.
(1219 mm)
MAX.
TOP OF APPLIANCE
AM POINT; 3 in. (75 mmi RADIUS FROM
THE MIDPOINT OF HAZARD AREA
42 in.
11067mm)
MAX.
Figure 3-22 Griddle - Flal Cooking Surrace
3-27 2anu3:'. 2)07
System Design
3-4.21 Wok
Table 3-27 GRW Nozzle Co\.'erage Area
Items Parameters
kok ii-a t4 to. to 2$ m (356 mm to [329 mm)
";ok Depth 3 P. to 5 th. (76 mm to 50.3 mm.
Nozzle Aim Center o \ ok
Nozzle Loczcicn - \List be oer center and within 2 in. (51 mm) 35 in. ($39 mmi Mm.
from cc: icr and P.OZZIC heih.c must be measured over cemer aiid - - - - oo :o I 1422 mm Mix oothth 2 in 5 I mm tram center from ins:de '0=om at Wok.
Onis one nozzle per Wok.
2 in. (51 mm)
MAX OFFSET
ONE GRW NOZZLE MUST BE
LOCATED ANYWHERE
WITHIN THE SHADED AREA
AIMED AT CENTER OF WOK
56 in (1422 mm)
MAX.
14 in. (356 mm) TO
28 in. (711mm) DIAMETER
35 in. (839 mm)
MIN
3 in, (76 mm)
TO 3 in. (203 mm)
DEPTH
CENTER OF HAZARD
AREA AT BASE WOK
INSIDE BOTTOM
Figure 3-23. Wok
A
P " P 27iO.
System Design
3-4.22 Tilt SkilletS (Braising Pans)
Table 3-23 F Nozzle Coverage Area
Items Parameters
Max mum Fiazard Area 24 n. 24 in t6 10 mm x 610 mm)
Nozzle Aim Mid poinc of ha'asd ares and placed so t does not
interfere with appliance operawori
Nozzle i c or - Ho cc e line of Lhe 1 2 2 r 699 mm) Mo
SODI:anCe
46 i
-, n. I [So mm) Max.
Note: ApDlice cover conoi incerlere vth discribuon
of actenc frorn the nozzle.
- - F NOZZLE
COVER MUST NOT
INTERFERE fIlTH
EDGE C- /
OcHRGE PATTERN
//
417-
CENT, ERL OF
HAZARD ZONE
THE NOZZLE IS TO BE PLACED TOWARD THE FRONT OF THE APPUANCE
TO MINIMIZE THE POTENTIAL FOR THE SKILLET OR BRAISING PAN
COVER TO iNTERFERE WITH THE NOZZLE DISCHARGE.
Figure 3-24. Tlc Skillet (Braising Pan)
N 9.271CC 3-25 JVALI.:v 5j_;,
System Design
I
3-5 MODULE PROTECTION (MULTIPLE NOZZLES)
For ppharices that exceed sirie nozzle coverage. multiple nozzles can be used to protect that
pliarice by modularizing (dividing up into smaller sections) the larger appliances hazard area
Exception: for deep fat [mers the rna_ximum protected area for a sngle vat is 6 112 I 1.9 m2
For a deep rat fryer that exceeds sngle nozzle coverage mult:ple F nozzles can be used by dividing
the hazard area into smaller modules that meet the ljmi[atton of a single nozzle.
3-5.1 Example - Module Protection of Fryers With Dripboards Less Than 1 in. (25 mm)
Each module that the larger hazard area is divided into must not exceed 24 in x 24 in. (6 10 rnrn x
610 r-n-ni and appliance area of 24 in. x 25 in (6 lO rota :< 635 mm) if a drip board is included. A
single F nozzle is then used to protect each of these smaller modules. See Figure 3-25. The nozzle shall be located anywhere within the perimeter of the hazard area and ai med at the midpoint of the hazard.
F
IMAGINARY LINE D'/IDIG -
MODULES
LOCATE THE NOZZLES ANYWHERE
WITHIN THE PERIMETER OF THE HAZARD
AREA. AMED AT THE MIDPOINT OF EACH
MODULE HAZARD AREA
460-
(068 1168 mm)
MAX.
I/ i444
MODULEA MODULEB\
BOARD
14— 13 .
I (457 mm)
(4 336 m
i4 mm)
27-112 In.
(699 mm)
MI N
AIM POINT: MIDPOINT
OF MODULE HAZARD AREA
TOP OF APPLIANCE
Rare 3-25 Exampie of Modular Protection. Single Vat Deep Fat Fryer Mess than 1-inch Dripboard I
jasuw 2007 II3C \ 927ICO
System Design
NOZZLE A NOZZLE B
/
NOZZLE CAN BE PLACED ANYWHERE WITHIN THE
SHADED AREA DIRECTLY OVER THE MODULE THAT
IS BEING PROTECTED BY THE NOZZLE.
Figure 3-26. ozz1es for Deep Fat Fryer
2007
ARY LINE
DIVIDING MODULES
- NOZZLE PLACEMENT SAME
AS SINGLE VAT WITH
DRIP BOARD COVERAGE
DIAGONAL FROM
AIM POINT
System Design
3-5,2 Example - Single Vat Deep Fat Fryer - With Dripboards 1 in. (23 mm) to 6 in. (152 mm)
Each modu'e [ha[ [he larger hazard is ctinded trim. rnusL noc exceed IS in. x 18 in.
'4a/ mm x 4-an n-, m.,: and an appliance area of H In. x 23 in i 45 / mm x 34 mm) If a drpooard is
InCILICiOd -\ Si-1.!e F nozzle is rheri used ic, proreCr each of [hese s;-nailer modules (see Figure 3-27
NOZZLE POSITION
TYPICAL FOR EACH MODULE)
FOR MULTIPLE NOZZLE
45 in.
(1143 mm)
45 in.
1! 143 mm;
MAX.
27:r. (636 mm)
23 . / / (584 fl)/ / . .
1
AXLIQ1JIO COOKING SURFA E ........ MAX / / 864 In (574 cmi) / / DRIP/BOARD
15 in. (406 mm)
(TYP.) 48 in. -
(1219 mm)
Figure :3-27 Example of Nozzle Posiion (Topical for each module) for 'vlulLiple Nozzle Coverage
I
2007 3-32 an •27!00
System Design
3-6 VENTILATION
3-6.1 Plenums
Table 3-29 Plenum Procecucn
Items Parameters ADP Nozzle
No Fther 10 It.x 4 ft. (3 m x 1.2 m N lax located 2t one end of the plenum
V Filter 10 it. x 4 ft. 13 m x 1,2 m I - located at one end of the plenum
20 it. x 4 Ii. IS m x 1 2 m i 2 . Iccaced at end GE plenum pointing inwards
Single Bank Filter 10 Ii. x 4 it 13 rn x 1.2 n I - located at one end of the plenum
20 it. x 4 It. 6 m x 1 2 mi 2 - located at end of plenum pointing inwards
When no ILiters are present. the nozzle protecting the plenum is used to discharge the we, chemical on the under-
sale of rice hood In this case. the hood may nor exceed a length of 10 it. 13 ml or a width of
1 it i I 2 mE.
Longer plenums rna: be similarly protected with a single ADP nozzle being used for each 10 ft (3.0
mi of plenum length and each 4 ft. (1.2 ml of plenum width.
ADP nozzles may be used in combinations (see Figure 3-281 Multiples may be installed facing in the
same direction, and;or at the ends of the plenum pointing in. Each nozzle shall provide a maximum
0110 ft. (3 ml of coverage.
.A-DP nozzles must be centrally located in the plenum with their discharge directed along the length of
the plenum and located in relation to the filters as shown in Figure 3-28. Refer to Figure 3-28 for filter
height.
9:27rDO 33 J2:sr 21,07
DUCT
System Design
NOZZLE
V' FILTER BANK COVERAGE
10 ft. (3 m) PLENUM
NOZZLE
DUCT 4 It.
1 2 mj
20 ft.
4ft.L
ml
"V' FILTER BANK COVERAGE
20 ft. (6 m) PLENUM
NOZZLE
34 H
"V" FILTER BANK
COVERAGE (END VIEW)
, 4ft.
DUCT . ft.
10 ft.
- NOZZLE
SINGLE FILTER BANK COVERAGE
10 Ft. (3m) PLENUM
NOZZLE
(1.2 m)>'
SINGLE FILTER BANK COVERAGE
20 ft. (6 m) PLENUM
34H
SINGLE BANK FILTER
COVERAGE (END VIEW)
Fir 3-21S ADP Pro[ct.ion ozzie P N E3 1200 t I
P ' i
System Design
3-6.1.1 DUCTS
The AD? nozzle. ?T' 8120011. is used for protection of the exhaust ductwork.
The duct cross section can be any shape, not including obstructions (i.e.. round. square. or
ret—a-Egulari and the duct itself can be of unlmited length In accordance with NFPA 96, the exhaust
fan should be left runni ng at the time of system discharge. Tlus will help to remove smoke and other
-Li mate7a1s and gases from the hazard area in the event of a fire. Check with the Authonry
i-ia'.ind iurisdicon for local requirements. .-\ dai per. if present. should be left open at systerr.
discharge. However, f the damper is closed, the system designer must insure that additional nozzles
are required.
3.6.1.1.1 Protection of Ducts 0 to 50 inches in Perimeter
One AD? nozzle. P. 8120011. is required for protection of a duct with a perimeter Lip to 50-inches
refer to Figure 3-291 . Length of duct is unlimited.
The nozzle is located at the geometric center of the cross-sectional area that it is protecting and is
located in the duct within six inches of the entrance.
Note: All Range Guard szstems are listed by UL and ULC for use .ith the exhaust fan either on or
off when the system is discharged.
DUCT PERIMETER UP TO AND INCLUDING 50 in. (1270 mm)
11.73 in. (300 mm) 15MAX. DIAGONAL (404 mm)
4 MAX.. H- B
1313 mm)- MAX.DIAGONAL
SQUARE DUCT RECTANGULAR DUCT
2'A 42"B"=ES in. (1651 mm)
ROUND DUCT
I Ir
ADP NOZZLE
0-61n.(0-152mm)
DUC[ENTR.NCE
Q OF VERTICAL DUCT
VERTICAL/HORIZONTAL DUCT -_AIM POINT
44
A AD? NOZZLE
OF HORIZONTAL DUCT
2 to 4 in. (51 to 102 mm)
NOZZLE TIP to DUCT HIP
Fiure 3-29. Duct Protection Lsing Single AD? Nozzle P N B 120011
N 9:27100 :3.33 J.31.ur3 2ocr
System Design
3-6.1.1.2 Ducts 50 to 100 inches in Perimeter
Tco .-\DP nozzles P \ 6l2001 I. pointing in the same direction are required for prO[eCtlOfl of ducts
ulh pertmerers greater than 50 inches and less Wan or equal to 100 inches Ducts can be of
unlimited length (refer to Egure 3-30.
For other option of ducts up to 75 perimeter inches (See Figure 3-32.
Note: AL) Range Guard systems are l:sted by LI. and ULC for use \vush the eIausr fan either on or
off vvheni the system is discharsecL
4 x X b I
/XY2X 'A d %d MAX DIAMETER 3183 in (309 mm) Yx /
I I NOZZLES TO BE ALONG ONE 25 in, (635 mm) CENTERLINE AT THE 1/4 POINTS. MAX. SIDE
4
NOZZLES TO BE 0 -6 in. (0.152 mm)
UP FROM ENTRANCE OF VERTICAL DUCT
MAX. DIAGONAL 1173 in. (300 mm)
MAX. DIAGONAL TYP. (2) ADP NOZZLES
11.73 in. (300 mm)
SQUARE RECTANGULAR ROUND
It
ADP NOZZLE
0 to S in,
(0 to 152 mm)
DUCT ENTRANCE '~t
. OF VERTICAL DUCT
A 2 .4 In. (51 mm .102mm) I ADP NOZZLE NOZZLE TIP TO DUCT HIP 4
OF HORIZONTAL DUCT
IM POINT
VERT)CAL!HORIZONTAL DUCT
Faure K. Duct Protection L:SIng Two ADP Nozzles. P N 8120011
r.. 2007 3.33 N L270C
System Design
3-6.1.1.3 Designing For Large Ducts
Large Ducts (Perimeters Greater than 100 Inches)
For dtcts larger than 100 in 12540 mml perimeter, the total perimeter of the duct must be divided
by 50. if the answer contains a decimal (or fraction. it must be rounded up to the nearest whole
riu cuber That wiI provide the number of nozzles necessary for proper protection of the duct. The
dagcna dimension nozzle to corner of duc[[ of each module roust not exceed 1178 inches (297
mm. if this chagorial dimension is exceeded. ac1ditona1 module divisions must be added unijl the
diagonal d:menson is not exceeded. A nozzle must then be centered in each module refer Co
Figure 3-311.
EXAMPLE
Yo Li have a duct with a perimeter of 156 in. [3962 mm).
Take the perimeter: 156 and divide it by the maximum allowable perimeter of a single nozzle: 50.
156/50 = 3.12
RoLind the 3. 12 up to the next highest integer Four nozzles are required to protect this duct.
9 9 9 .. - A- -i- B- = C- vvh i ere A s lengrh. B is width and C is diagonal.
Each "section of the duct is 18L x 151X.
182 + 152 = c2
324 + 225 = 549
The square root of 549 is 23.43 inches (23.43= 549): therefore. the diagonal of each module is 23.43
inches One-half of 23.43 is 11 .71. which is the measurement from the nozzle to the corner of the
duct. Our maximum allowable diagonal is 11 lb inches. as stated above.
NOZZLE TO CORNER: 11.73 in. (298 mm)
MAXIMUM ALLOWABLE is 11.78 in. (299 mm)
18
LARGE DUCT: 18 X 60 in. (457 mm x 1524 mm)
TOTAL: 156 PERIMETER INCHES
Figure 3-3 1 Modular Protection of Large Ducts
P '- 9:2700 iari.3ri 20u
System Design
Alternative Method: Ducts 0 to 75 Inches in Perimeter
Tvo ADF nozzles :art be used in ducts with a perimeter of 0 up to 75 inches (1651 to 1905 mi-ni The
ratio of the 1onest to shortest perimeter sides shall riot exceed 3 to 1.
One of these nozzles is pointed into the duct and [lie other is pointed into the plenum
The tip of the upper nozzle. of the pair of nozzles required for each duct shall be posfttoned in the
center of the duci opening and above [tie plane of the hood-duct opening ber.veen I in. 125 mm artci
24 in. 1610 mrni The duct length is unlimited See Figure 3-32.
Note: ',.'hen a dznpe: is present at the hood c:uct open1n. the duct nozzles are to be located above
the damper and should not interfere with the operation of the damper
Note: All Range Guard systems are listed by Lb and LTLC for use with the exhaust fan either on Cr
off when the system is discharged
Fiure 3-32 Optional Duct Nozzle Placement
iCO7 i-as P \9 1 2GC
-+
RISER
'p
System Design
3-6.1.1.4 Upper Lower Plenum Examples
Protection of special or unique plenum Sr an ements should be reie'ved by the AHJ (.-\uthcritv
riavrio Jurisdiction. Badger recornrrierids that upperiower plenum arrangements be protected as
shown below.
Note: All Range Guard systems are tsted b; LL and LLC for use with the exhaust Ian either on or
off when the system is discharged.
1 [1 risers are less than 6 in. 152 mm I. nozzles are required to protect the upper and lower
plenums and in the main exhaust duct. (See Figure 3-3:3 and Figure 3-34).
Example 1 - Riser less than 6 in. (152 mm) in Length
4
SER
L
Figure 3-33 Special Plenum Arrangements
2. If risers are 6 in. (152 mm) or longer. Lhe risers become the exhaust ducts and there is no upper
plenum. Nozzle(s) are required in the lower plenum and also in each such riser. The riser portion
is to be treated now as the hood duct opening and protected according!'.:. (See Figure 3-34).
Example 2 - Riser more than 6 in. (152 mm) in Length
Figure 3-34 Special Plenum Arrangements \Vi[h 6 in 1. 1,52 mm) Risers
P N 27100 339 Jawary 2007
CHEN HOOD
System Design
3-6.1.2 SPECIAL CONFIGURATIONS
3-6A.2.1 Protection of Electrostatic Precipitators
EIeccroata:: precipitators ESPi are designed to rerno'.e smoke and other airborne corita iT.inan[5
from the airstrearn no"Ing through exhaust ducrwork ESPs axe used in restaurant When exhaust
stems as a means of pollution control They are not intended m replace grease litters as the on i mar
means of grease extraction ESPs obstruct exhaust airflow and therefore require nozzle coverage in
addition to a nozzle(sl protecting the duct-work.
Exhaust clucctork using ESPs require AD? riozzlels. The AD? nozzlosi must be located centralil: in
We ductwork and should be aimed at the mi ddle of the ES?. Dtstribution piping to the AD? nozzle
Wand above the ES? and the AD? nozzle aimed at the precipitator must not interfere with the
unction of the ESP Linit See Figure 3-35.
__________________ CE4TERLlNE O
HAZARD ZONE
Ftgure 3-35 Nozzle Placement with Electrostatic Precpicator
jt -a', 2007 3-40 P 4 9 127 i X-
System Design
3-6.1.2.2 Transitional Duct
The proposed pro[ecsor. for [ransir1oral dc[ applications should be approved by [he CJ[J kAu[hor[;
[-laying Jurisdcuom prior to s[arurtg this syscern iflS[all;a[iOr. Badger recommends that transi cional
ducts be pro[!,-:rd as follows
Measure [he dLmrr1sons at so inches toto the traflS[Ofl piece. Deermrie coe number of nozzles
required by the peNmewr measured at the sLx-inch location. Place the tip of the nozzles at su inches
jfl[O the Lrafl5[on piece See Figure 3-36.
M)
Figure 3-36. Transi tional Duct
PN 9:271.00 141 Janusm 2007
System Design
3-7 CYLINDER FLOWS
After Iindir how many nozzles of each type are required for a system, the sum of all the nozzle flow
numbers is used to determine the number and size of the cylinders required in accordance with [he
cylinder flo'.v roam ber limits it'eri below
Table 3-30 Cylinder Flow Number Limits
Maximum Flow Numbers of Cylinders
Cylinder 1 Flow Number
RC-1 250 4 - Single Cvbnder On i, i cannot man1o1d
RG-2.50 8 - SIngle Cdinder Systems Only icannoc manfoldi
R04(35 u4GM Can manifold up ro 4 cvlinders
I Cvhnder 12 2 Cvinders 24 3 Cylinders 36 4 Cylinders 148
RG6GS Can manifold up to 2 c0nders1
1 Cylinder i is 2 Cylinders 36
Only likC c.:linde:s can be manliolded lye - four RG408 or 4GM: two RG6G)
f.
J:n:a' 2007 342 7 'i 92700
System Design
3-8 PIPING REQUIREMENTS
Range Guard systems do not require balanced piping to achieve proper distribution of wet chemical
to all nozzles. Balanced piping is not necessary because a liquid has no difficulty in turning corners or changing directions. Range Guard nozzles come equipped wich permanent predetermined orifices. This means that the 1:quid u-ill be delivered in the exact quanctres necessary to the duct. plenum and
appliance hazards as required.
A pipe shall be schedule 40 (standard black steel. Pipe mar be chrome plated. Galvanized
pipe shall not be used All pipe and fittings must be made tiaht without pipe dope or thread sealant.
Pipe fittings shall be standard weight steel, cast iron, malleable iron or ductile iron. Galvanized
fittings shall not be used. Branch line connection and individual nozzle connections may be made by
using either the outlet or the run of a tee.
3-8.1 Stainless Steel Tubing and Fittings
Stainless steel tubing may be used on all Range Guard systems. Fittings may be stainless steel
compression or stainless steel flare types. Bending of tubing using mandrels is permissible.
3-8.2 Pipe Sizing
Pipe sizes are determLned by the total number of flow numbers running through a particular piece of
pipe This is the flow demand for that portion of the system.
Note: Iris not permissible to drop pipe diameters below the required value. For example. using 1/2-
inch pipe to flow 18 now numbers is not permissible. However, increasing pipe diameter is
acceptable (i.e.. using 1-inch pipe to now 18 now numbers) providing the system complies
with internal pipe volume limitations.
Table 3-3 1. Flow '/umber Range and Pipe Type
Flow Number Range Minimum Pipe Size .033 WaIl Stainless Steel Tubing Size
-2 I'4-inch 3.8-inch
-3 3i8-inch N/A
- 12 1/2-inch 58-inch
13 -2 1 3,4-inch 7.8-inch
25-48 1-inch 1-inch
3-8.3 General Rules
A maximum of 100 equivalent ft. (30.5 ml but not more than 40 linear ft. (12.2 mi of l'4-in. pipe
may be used from each branch line.
The highest point of the system shall nor exceed 12 ft. j3.7 ml above the c,1irider cutlet.
The vertical rise of a branch line above the supply line shall not exceed a maximum 01 4 it 11 2 ml.
,trn rl!zrhr-c" r',r,p- ,:rh,m ..................
Jadimurn equivalent length limitations shall not be exceeded
\iaximum fio',v points for a given pipe shall not be exceeded.
There are to be no low points or traps present in discharge piping.
P \ 9: z7100 3.43 Jvuai. 2007
System Design
3-8.4 Discharg e Line Volume Limitations
There IS a dischare line volume lin-utauon in Rane Guard systems. Dischar9e 1ne volume is the
total volume of all pipe. tubing and fittings used in single or multiple cylinder systems.
To measure discharge line volume, it is necessar:/ to measure all pipe length from the center of one
fitting to the center of the next fitting and multiply by the volume-per-foot factor given in Table 3-32
and Table 3-33
Table 3-32, Piping Discharge Line Volume
Size Piping Discharge Line Volume
14 in 1.25 per inear foot -(67.2 cm 3 per ILnear meter)
3 8 in, 2.29 n.3 per linear loot - )123.1 cm3 per linear meter)
1 2 U. 3.65 in. per linear foot- 196.2 cm3 per linear meter
3 41 ' 6.40 ia.3 per linear foot - 1 344.1 cm 3 per linear meter)
10 37 in.3 per linear loot - 557.5 cm 3 per linear meter)
Table 3-33. Tubing Discharge Line Volume
Size Piping Discharge Line Volume
3.8 In. 0.88 in.3 per linear loot - (47.3 cm per linear meter)
5.8 in. 2.90 in per linear foot - (1.55.9 cm 3 per linear meter)
7 S in 6. 11 in.3 per linear foot - (328.5 cm 3 per linear meter)
I in 8.15 in.3 per linear foot - (438.2 cm3 per linear meter)
Table 3-34. Maximum Allowable Piping Volume
Cylinder Size Total Dischare Pipe Total Dischare Tubinc Max. Allowable 38-inch ) 'volume Max. per Cylinder Max. per Cylinder Pipe Volume per System
RG125 4 ) 72 in.'3 1 180 cm 3 ) 51 in.3 ($36 cm') I 72 in.3 (1 t,50 cm3)
RC.250 !9 5 L I 139 in )227$ cm 3) 99 in.3 ! 1622 cm3 ) 95 (1557 cm3!
NO-400 1.5 L 400 in.3 16555 cm3 282 in.3 (4621 cm3) 95 in '3 1557 cm 3 )
RG600 11,227 L) 400 in cm 3 ; 282 in.3 4621 cm3 ) 95 in.3 (1557 cm 3 )
Cannot Manifold
Note: The maximum allowable 38-inch pipe volume is not in addton to the tctai cischarge 1
volume, but represents a portion of the total volume which may be dedicated to 3 S-inch pipe
al o n
2CO3 :3 " P 03
System Design
3-8.4.1 EQUIVALENT LENGTH LIMITATIONS
E.quvaIent feet is deitned as the actual measured (ench of discha.re line plus the equi'aien.t Ienth
tar each ii-Ling in the line as obtained from the data tven in Table 3-35 and Table 3-36.
Table 3-35. Pipe Ftung Equivalent Length
Equivalent Length
Pipe Fittings 1.4 in. 18 in. 1,2 in. 3,4 in. I in.
(6.3 mm) (9.5 mm) (13 mm) (19 mm) (25.4 mm)
90 Elbow 0.9 ft. 1.3 it. 1.5 ft 2.1 ft. 2.7 Ic
.27 in) 1.40 in! i i .46 in! i .64 rm 1.32 ml
45' Elbow - 04 It. 0.6 it. . 08 ft. 1.0 It. 1.3 ft
(.12m) ([3m) (.24m) I .3Gm, (4Gm)
Te Outlet! 2.0 ft. 2.7 ft. 3.5 ft. 4.5 ii. 5.3 ft. (.6t mi k82rni (1.07 1 1.37 in) 11.77 in)
Tee (Run! 05 ft. 0.8 ft. 1.1 ft. 1.4 ft. 1.7 ft.
([S m) , .24m( (.34 m (43 rni 52m)
Red. (1:2 in. tol:4in! 0.31t. - - - - (I3mmto6.3mm) ).09m!
Red. (1'2 in. t03:SLn.) - 0.31t. - - - (13 mm to 9.5 mm) (.09 ml
Red.) ;4in.to12in.j - - 0.41t. - - (19 mm to 13 mm) (.12 in)
Red. (t in. 1o34tr'H - - - - 0.51t. - i 95.4 mm to 19 mm! (.15 n
Equivalent feet is measured from the cylinder (the farthest cylinder in a manifold) to the most remote
nozzle. Equivalent feet is also measured benveen the two most remote nozzles Equivalent feet is measured only along that branch with the most equivalent feet. Table 3-36 lists the madmum
equivalent lengths for each cylinder size
Table 3-36. Tube Fitting Equivalent Length
Equivalent Length
Tube Fittings 3/8 in. 5,8 in. 7,8 in. 1 in.
(9.5 mm) (16 mm) 122 mm) )25.4 mm)
90' Elbow 1.5 ft. 2.5 ft. 4.0 ft. 4.5 ft.
(46m) ).76m!i137rn)
90 Bend 0.5 ft. 1.0 ft. 1.0 ft. loft.
(.15m) (.30rn, )30m( (.3Gm)
45' Elbow 08 ft. 1.3 Ii 2.0 ft. 2.3 ft.
.24m) !.40m) )61m; !.70 m!
45' Bend 05 it. 0.5 ft. -- 0.5 it. 0.5 ft.
(.15 in) 1 .15 ml liSa-i) 1.15m!
Tee )Out.ieu I 1.5 It. i 2.5 ft. '4,0 ft. 4.5 Cc-
(.46 -n 1 ).76rn i 12rn, )l.37 m!
Tee Run) 0.5 ft. 0.5 ft. 1.0 ft. 1.0 It.
.15 in) ) 15 rn; f .30m) ).30mi
P N 9)27)00 3-45 Ja,-arV 2007
System Design
12 in.
(.3 m)
90 ELBOW
1i2 in. (13 mm( PIPE 90 ELBOW
Fgure 3-37. 1. 2 in (13 Piping with 90 Elbow
Equivalent Feet from Table 3-35:
9(Y 1.2 in. i 1.3 mrn I Elbow: 1.5 eq. ft.
90 1 2 in 13 mini Elbow; 1.5 eq ft.
1.0 it. of 1:2 in. (13 mm) Pipe
4.0 eq. ft.. TOTAL
A tee can be considered one of two 'vays. depending on orientation. Figure 3-47 shows the different
orientations that can occur. The equivalenu feet for a reducing tee is determined by the larger size of
Cl-le tee. Refer to Table 3-9 or 3-10 for equivalent. feet.
EXAMPLE
TO THE MOST
REMOTE NOZZLE TO THE MOST TO A NOZZLE THAT IS
ON EITHER SIDE REMOTE NOZZLE NOT THE MOST REMOTE
FROM
CYLINDER
CYLINDEJ
TO A NOZZLE THAT IS
NOT THE MOST REMOTE
C Y L INN'~Jr
TO THE MOST
REMOTE NOZZLE
TEE ON THE BULL (OUTLET) TEE ON THE RUN CONSIDERED ATEE ON THE BULL (OUTLET)
Figure 3-38. Tees
Table 3-37. Remote Nozzles
- Equivalent Feet from Cylinder to Equivalent Feet Between Most Cylinder Size . Most Remote Nozzle Remote Nozzles
RG-125 39 ft. (11.9mi 3:3 ft (101m'i
RC-260 . 6;3,4ftHl43m 4371t (l'33m
',)_ LL. '-t''J
RG.600 75 It. 122.9 mi2 80 In 24.4
2 The rnacmumns i:sied in Table 3:37 apph to mnani.fold systems as well as single c.inder s\stems
Pi:27iC0
System Design
3-8.4.2 MINIMUM PIPE LENGTH
The rniritmum pipe length ro prevenr splash reqused beoveen c':1irder and closest cooking
aippliarrce nozzle used to prorect a liquid hazard. such as a deep far fryer, is giver. in Table 3-38. For
pipe sizes larger rhan 1 2-inch 1 3 crru use formulas I and 2. ro find he equivalenrlengrh in 1 2-inch
1 3 cm; pipe.
Table 3-38 NlinirnLlm Allowable Pipe
Pipe Size Minimum Allowable Pipe
14-inch and 3 S-(ncb 8-1 2 (2.6 m) linear leer pius 11)90: elbow (2.6 rn(
1 2-inch Two (2) 90 Elbows and 7 linear leer ;2 trn)
3.4-inch and 1-inch 10 equivalefli leer oil 2-rich (13 mm) pipe
see formulas I & 2 and Figure 2-39;
Formula 1:
equivalent leer (rnerersl of 1-inch (25 mm) pipe x (0.079) = of equivai.enr leer (rnerers) of 1 2-inch (13 mm) pipe
Formula 2:
equivaienr leer (muerers) of 34-inch (19 mm; pipe x (0.254) = of equivalenr leer (merersi of
1.2-inch (13 mm) pipe
7 N 9 i 2700 3-47 2c07
System Design
2 ft.
(.6mb,
3'4 in,
I (19 MM)
L
m)
10 ft. 6in. (3m) I (152 mm)
V
t
i.
1r2 in. L 1 ft. 6 in. (13 mm) (.5 m)
4ft. 10 ft.
(1.2 M)--t4-(.9 m) (3m)(9 m)
3/4 in.
(19 mm)
EQUIVALENT FEET CYLINDER TO CLOSEST NOZZLE
Figure 3-39. Pipe Size and Nozzle Discance
3,4-inch Pipe
Ii I 2-tnch to 3.4-inch reducer: I HO 4 j = 0.4 ft. of 34-inch Pipe
2i 900 3 4-inch elbow: 1211i2 11 = 4.2 ft. o13/4-inch Pipe
Ii 3.4-inch to I 2-inch reduci.n3 Tee Irun1: Ii I 41 = 1 4 ft. of 34-inch Pipe
Linear Feet of 344nch Pipe:
Equivalent Feet of 3.4-inch Pipe: 22 ft of 3.4-inch Pipe
a 22.01 : '0 254 = 5 5 eq ft. of 1 2-inch Pipe. from Formula 2
314-inch Pipe
From al 5.3FT of I 2-inch Pipe
U 1 2-inch Tee iOutlet: 1 133 5 j = 35 ft of 12-inch Pipe
I 2-inch to 3.8-trich reducer: i Ui 0 3 = 0,3 ft of 1.2-inch Pipe
Linear Feet of 1,2-inch Pipe: 5'S
Equivalen: Feet of 3 4-inch Pipe: I-i S ft. of I 2-inch Pipe
nereiore Lnia exarliple ieS iflCC LOC minimum Pipe rCi.fti
2047 '3.43 P
System Design
3-8.43 SPECIAL 3.8-INCH PIPING ONLY SYSTEM
On RC3-125. RG-260. and RG-400 single cylinder systems only. 3:8-inch discharge piping may be
used for the entire piping neuworh followi ng the guidelines in Table 3-39 If a pneumatic release or
pressure sw'tch is used. I I must be on the upper end cia 12 in. k 305 mmi vertical length of black. pipe
Table 3-39. 3.8 in. Piping Only System
Limitations RG-1.25G RG-2.50G RG-4GS1RG-4G.2
Ma,-,Mum Discharge Line Volume 3'7 99 in.3 161 in .3
(1180 crn31 1622 crn31 (2638 cm31
ylaxtmum Equivalent Lenth of Discharge Line 39 It. 40 ft. 59 ft. Between Cylinder and Most Remote Nozzle
(11.9 mi (12.2 m I 13.01;
Maximum Equivent Length of Discharge Line 33 it. 42 ft. I 50 ft Between Most Remote Nozzles (10 mi -, (12.b mi - (1.j.2 ml
Maximum Equivalent Length of 1 2-inch 12 ft. 12 ft. 24 ft (13 mm) Dtschare Pine Between Cylinder and - (3.1. ml (.7 m( - (/ 3 m) Hood
Minimum Equivalent Length of Discharge Line 8-12 ft. (2.6 ml linear 8-1/2 ft. (2.6 m) linear 8-1.'2 It. (2.6 ml linear
Between Cylinder and an Appliance Nozzle feet plus 90 elbow feet plus 90 elbow feet plus 90 elbow Protecting a Liquid Hazard, such as Deep Fat
Fryer
2 The lt.mtations on this section (Paragraph 3-8 4.3i supersedes all other limitations when designing a system using
3 3-inch pipe originating from the -ga1ion cylinder outlet.
RN 6l27i00 3-49 Jaivary 2007
System Design
38.4.4 DETECTOR
Detectors using Range Guard approved fusible link detectors are required over cooking appliances
and in the ducts of kitchen cooking equipment per FPA I 7A and NFPA 96
For protection of the duct, a detector must be centered either flush .vith [he hood-duct opening or in
the chtct but not more than 12 feet (3.7 m I do\vnscream from where the duct is connected to the hood.
mounted in the duct. the detector should be oriented so that the bracket does not sh:eld the
link from the hot air stream. and the fusible link is centered in the duct.
Max:rnurn dimension per detector is 54 in. x 54 in 1372 mm x 1372 mm).
Appiances ha';rig a surface area larger than 54 in x 54 in. 1372 mm x 1372 mm) require additional
detectors. When a cookmg appliance is under the hocd duct opening. the appliance is protected by
the detector mounted at the hoodduct opening or 12 in. (305 mrr) maximum into the duct. An
additional detector is not needed to protect that appliance.
A temperature survey must be performed at all locations where detectors will be installed. The survey
must be conducted under maximum cooking or appliance cleaning conditions in order to determine
the optimum exhaust air flow locations and to record the peak temperatures that are expected to
occun
Once the survey is completed:
Select the lowest temperature rated detector that can be used.
Make sure the maximum exposure temperature of the link exceeds the maximum temperature
obtained from the survey.
Make sure links are located in the exhaust air flow, not in dead air spaces. This vill provide the
fastest detector response.
Note: Care must be taken not to install links directly in the exhaust flow of appliance flue gas.
12 in. (305 mm) MAX. IF APPLIANCE
IS UNDER HOOD DUCT OPENING
Al £
31-4 in. F 7X 3/4 in_ -t 4<-( -)-X- (-
3:4 in. 19 mm DISCHARGE PIPING
LIQUID SEAL ADAPTERS
STOVE HGRIDDLE1i FRYER STOVE H FRYER I STOVE ICHAREROILERI
24 in. +4- 24 in.++24 ifl.+H124 in.~ii4-18 in.~ H 30 in.~3 k- 43 in.
(610 mm) (610 mm) (5 10 mm) (6 10 mm) (457 mm) (762 mm) (12 19 mm)
Figure 3.40. Pcsi:torjng Detectors
_______ F GRIDDLE
UPRIGHT k 56 in. ol
BROILER (1422 mm)
L. III.
(364 mm)
2c07 -ec a a cc
4 System Design
3 UCH CONTROL SYSTEM DESIGN AND INSTALLATION PARAMETERS
A System Valve Actuator iSVAi is used on every cylinder of the system. 1;4-inch tubing or hose is used to cor.nect from the Control System to each SVA. It has inlet and outlet ports for low profile [ub102
runs The following tables define the UCH Control System design and insiallacion parameter limitations
Table 3-40 - Cable Limtatons
Table 3-41 - Actuation Length Limitations
Table 3-40. UCH Control System Cable Limitations
Cable Line Max. Cable I
Length
Max. Corner
Pulleys
Max. Tee Max. Detectors Pulleys
Detection and Manual Release-to-Trip Line 1 200 ft. (61 ml 50 40 -
Detection and Manual Release-co-Trip Line 2 200 ft. (61 ml 50 40 -
Pull-co-Trip Remote Manual Release 100 ft. (31 ml 30 -
Mechanical Gas Valve Release 100 ft (31 ml 30 -
Tee pulleys count as two Corner Pulleys. Maximum is from Control System. through the puliev, co each device
Table 3-41. UCH Control System Actuation Length Limitations
Mm. Operating Number of Max. Total Lenth of 1/4 in. Max. Number of Pressure Mm. Etinguishin System O.D. x 0.031 in. Wall High Switches (P/N 486536( in Temp. Cylinders I Pressure Tubing Actuation Line Tubin
02F(,18C) 1-12 l06 It. (32m)— See Noce 6 2 51t.(2m1
0F(-13C) 13-20 911t.(28m)— See Noce 6 2 1 5 ft, (2m)
The following are additional information and requirements rega.rdin.g the actuation line tubing and
flex hose
I Flex hose (P/N 5120045). is required to connect the UCH Control System to the System Valve
Actuator when the UCH Control System is cylinder mounted
2 Copper tubing shall be 1.4-inch O.D x 0.031-inch wall high pressure tubing.
3 When Control System is cylinder mounted and two or more cylinders are being actuated. a
rnirtirnum of 5 ft. (1.5 ml of I 4-inch O.D. x 0.031-inch wall tubing shall be used for actuation
lines.
4. Wnen Control System is wall mounted, a minimum of 5 ft 12 ml of 1 4-inch O.D. x 0.031-inch
tvall tubing shall be used in the overall actuation line.
5 in every system, either single cylinder or multiple cvinder, a 1.8-nch NPT plug or vent check
(P N 877810) shall be used in the outlet port of the last System Valve Actuator(s) in the actuation
line.
6 High pressure nitrogen tubing (P N B 120045-001 through B 1.2004.5-003 maY be used in place of cooper cubing and not to exceed a maximum lena-th of 30 feet 19 ml
P59.27100 3-51
System Design
3-10 A+DESIGN AND INSTALLATION PARAMETERS
The 1ol1otri. tables deñne the A- desrrn and IflStO1i3tLCfl parame[er limitations.
Table 3-42 - Detection Line Limicauons
Table 3-43 Acttancn Ltmadons
Table 3-42. A- Detectton Line LUTlILaCiOnS
Item Limitations
Detection Line 200 Ct i 61 mr t
Detectors 40
Corner Pulleys
Table 3-43. A+ Actuation Limitations
Item Limitations
Copper Tubing I 14-inch O.D x.031 wall thickness x 23 ft. 17 ml Tota1
3 feet i 1 mi from A to 1st Cylinder Min.l
SVAs - 5
Includes use of Remote Manual Control-
2 If usLn0 Gas \aive. maxunum 50 ft. (15 m( cable and 16 Corner Pulleys
3A combined maximum of 23 ft. total (7 ml of 1:4-inch O.D x .031 wall thickness copper tubing may be used to con-
riect the A Control Box to the SVAis) on the cvlinderis) The 23 ft (7 ml total is comprised of 3 it (I ml of tubing
from the -\- Co the 15t cylinder and 20 Ic. (6 ml from 1st to the last cylinder.
hnry 2007 2 52 P N 507i0U