Plans (291) Ansul wet chemical fire suppression system,
Duct: 10"x24" Model R-102.4.5 gallon system.
3/8"black pipe Flow point capacity: 16
/
Fusible Flow points used: 13
f
2W� ( Links
l N.
i ` 1450F
I 1
ANSUL --n31 1 9'Type I Hood
Single Filter Bank
��N 1N OFFICE COPY
I i 0" ig
12" iN CITY OFTTG �4 -
3N 1N 30" REVIEWED FOR COM!, CUM- . A `..-'--:
" " I Salamander 40"
30" 4Q" I 15"x29" Approved; I
a OTC: ( j
�v? 290 290
15" Permit #: E aQ r g : oo O G3
Remote 20" 20" Address: 1 1 "`"
Manual
r-- �— 7 -�; Sr }� `�_
Pull I Suite#:
1
BY: ' Date: ( j
, -1
1 UJI 1 _ r 1 I .,
24"x24" !"-'
Automatic as shut 14"x15" 48"x24"
g F Radiant Rane G —__
off valve. Broiler g _
Requires manual
resetting. ''
d
Fire system drawing
Front view
Guardian Fire Protection Job: Bannings Restaurant Notes; Fire system installed in accordance with Ansul
PO Box 1555 11477 SW Pacific Hwy design, installation and maintenance manual.
Albany OR 97321 Tigard OR 97223 System tested in accordance with UL 300.
CCB# 100355 exp 6/20 Date: 5/18 Drawn by: MAF
•
SECTION IV — SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-1
7-1-09 REV.8
SYSTEM DESIGN GENERAL INFORMATION
The ANSUL R-102 Restaurant Fire Suppression System may be 1.Nozzles must be located 2-8 in.(5-20 cm)into the center of the
used on a number of different types of restaurant cooking appli- duct opening,discharging up.See Figure 1.
ances and hood and duct configurations.The design information
listed in this section deals with the limitations and parameters of ,—'---. ,^
this pre-engineered system.Those individuals responsible for the
design of the R-102 system must be trained and hold a current 0
ANSUL certificate in an R-102 training program.
The R-102 and the PIRANHA systems use compatible agents and
components, therefore, they may be used together for cooking
appliance, hood, and duct protection. The primary ANSUL
AUTOMAN Release can be either an R-102 or a PIRANHA _�
ANSUL AUTOMAN Release and can actuate up to two additional ��
R-102 or PIRANHA Regulated Actuators. In systems utilizing a
101 remote release, any combination of the maximum number of
regulated actuators can be used. 2-8 IN.
(5-29 cm)
• Both systems must actuate simultaneously. 1
• Each system must be designed and installed per its appropri- FIGURE 1
ate manual. 000173
• Adjacent appliances requiring protection must be protected 2.In installations where a UL listed damper assembly is
with the same type of system, either R-102 or PIRANHA, employed, the duct nozzle can be installed beyond the 8 in.
unless the center-to-center spacing between the adjacent (20 cm) maximum,to a point just beyond the damper assem-
' R-102 and PIRANHA nozzles is no less than 36 in.(91.4 cm). bly that will not interfere with the damper.Exceeding the maxi-
• When appliances are protected with R-102 nozzles,the hood mum of 8 in.(20 cm) in this way will not void the UL listing of
and connecting duct above those appliances cannot be pro- the system.
tected with PIRANHA nozzles. 3.Previously listed 3 flow number and 5 flow number duct pro-
• Mixing systems in a common plenum is not allowed. tection detailed in earlier published manual, Part No.418087-
One of the key elements for restaurant fire protection is a correct 06,can also still by utilized.
system design.This section is divided into ten sub-sections:Noz- DUCT SIZES UP TO 50 IN.(127 cm)
zle Placement Requirements,Tank Quantity Requirements,Actu- PERIMETER/16 IN.(41 cm)DIAMETER
ation and Expellant Gas Line Requirements, Distribution Piping
Requirements,Detection System Requirements,Manual Pull Sta- • One 1W nozzle(Part No.419336)=one flow number
tion Requirements, Mechanical Gas Valve Requirements, Electri- , 50 in.(127 cm)perimeter maximum
cal Gas Valve Requirements,Electrical Switch Requirements,and
Pressure Switch Requirements. Each of these sections must be • 16 in.(41 cm)diameter maximum
completed before attempting any installation. System design
sketches should be made of all aspects of design for reference DUCT SIZES UP TO 100 IN.(254 cm)
during installation. PERIMETER/32 IN.(81.3 cm)DIAMETER
NOZZLE PLACEMENT REQUIREMENTS • One 2W Nozzle(Part No.419337)=two flow numbers
This section gives guidelines for nozzle type, positioning, and • 100 in.(254 cm)perimeter maximum
quantity for duct,plenum,and individual appliance protection.This • 32 in.(81.3 cm)diameter maximum
section must be completed before determining tank quantity and
piping requirements. The chart below shows the maximum protection available from
each duct nozzle.
Duct Protection—Single Nozzle Part 3.0 Gallon 1.5 Gallon
All duct protection is UL listed without limitation of maximum duct Description No. System System
length (unlimited length).This includes all varieties of ductworks --__ — "" ----- --
both horizontal and vertical including ducts that run at angles to 2W Nozzle 419337 Maximum Maximum
the horizontal and ducts with directional bends. 100 in.(254 cm) 100 in.(254 cm)
The R-102 system uses different duct nozzles depending on the Perimeter Perimeter
size of duct being protected. 1W Nozzle 419336 Maximum Maximum
50 in.(127 cm) 50 in.(127 cm)
Perimeter Perimeter
SECTION IV — SYSTEM DESIGN
- UL EX3470 ULC EX3470 Page 4-5
7-1-09 REV.5
Plenum Protection --�
The R-102 system uses the 1W Nozzle(Part No.419336)or the11
1N Nozzle(Part No.419335)for plenum protection.The 1W noz- iii 20 IN.(51 cm)
zle tip is stamped with 1W and the 1N nozzle tip is stamped with MAXIMUM
1N, indicating they are one-flow nozzles and must be counted as
one flow number each.When protecting a plenum chamber, the ;;�j'
entire chamber must be protected regardless of filter length. '' j 1 IN.(2.5 cm)
J MkNIMUM
VERTICAL PROTECTION—GENERAL 'i=-. j :,
'1W NOZZLE — PART NO. 419336 — SINGLE AND"V" BANK ,
'PROTECTION 20 IN.(51 cm)
One 1W nozzle will protect 4 linear feet (1.2 m) of plenum.The MAXIMUM
maximum distance from the end of the hood to the first and last
nozzle must be no more than 2 ft(0.6 m).After the first nozzle,any : }
additional nozzles must be positioned at a maximum of 4 ft(12 m) 1 IN.(2.5 cm)
4.
apart down the entire length of the plenum.The plenum width must M!NlMUM
not exceed 4 ft(1.2 m).(The 1W nozzle can be used on single or V'
V bank filter arrangements.) See Figure 6. FIGURE 7
000199
2 FT(0.6 m)
MAXIMUM ... Option 2:The 1W nozzle must be placed perpendicular,8-12 in.
44nFTiMurm) (20-30 cm)from the face of the filter and angled to the
4 FT(1.2 m) //'�4 FT(1.2 m) center of the filter.The nozzle tip must be within 2 in.
2 FT(0.6 m)MAXIMUM MAXIMUM (5 cm) from the perpendicular center line of the filter.
MAXIMUM
OSeeFigure 8.
.-
1j 12 IN.(30 cm)
S MAXIMUM
laillht;
1
' ,r Z' I 4 IN./ + , — (10 cm)
_:__ —_—__"_.._ 8 IN.(20 cm)
.,:to ''/, ,. ' � � , MINIMUM
\, . ,------‘ NOZZLE TIP ,�i•���.,
I: MUST BE WITHIN ,p+
THIS AREA 1:-
FIGURE 6 ,i % ,
000197 s .
When protecting plenums with the 1W nozzle,two options of cov- wlirur
,
erage are available: FIGURE 8
000200
Option 1:The 1W nozzle must be on the center line of the single
or "V" bank filter and positioned within 1-20 in. HORIZONTAL PROTECTION—OPTION 1
(2.5-51 cm) above the top edge of the filter. See 1N NOZZLE—PART NO.419335—SINGLE BANK PROTECTION
Figure 7.
One 1N nozzle will protect 10 linear feet(3.1 m)of single filter bank
plenum.The nozzle(s) must be mounted in the plenum, 2 to 4 in.
(5 to 10 cm) from the face of the fitter, centered between the filter
height dimension,and aimed down the length.The nozzle must be
positioned 0-6 in.(0-15 cm)from the end of the hood to the tip of the
nozzle.See Figure 9.
I
• 2—4 IN. 10 FT.(3.1 in)
(5—10 cm) MAXIMUM
0.' iiiii
rnb2ot
iiii
1111141fr000202
FIGURE 9
SECTION IV — SYSTEM DESIGN
- UL EX3470 ULC EX3470 Page 4-9
4-1-06 REV.8
1 Fryer—Single Nozzle Protection (Continued)
Maximum Area Dimensions Single Nozzle Fryer Protection (Continued)
Max.Size
Max.Size Overall Type of Nozzle Height Nozzle
Frypot Only With Dripboard Nozzle Above Top of Fryer Location
19.5 in.x 19 in. 19.5 in.x 25 3/8 in. 290 13 in.to 16 in. See Figure 17
(50 cm x 48 cm) (50 cm x 65 cm) (33 to 41 cm)
19.5 in.x 19 in. 19.5 in.x 25 3/8 in. 3N See Figure See Figure 18
(50cmx48cm) (50cmx65cm) 18
►18 in.x 18 in. 18 in.x 27 3/4 in. 3N 25 in.to 35 in. See Figure 19
►(46 cm x 46 cm) (46 cm x 70.5 cm) (64 cm to 89 cm)
►- ,.,) � '" x•)1 —`1;.1 I,-f- 1F � I r , 1 F
- 1 �' ' 1 11 `� 1 j Y 1
I F I jiI
'
<0.001.440/11000.. TOP OF FRYER I I 1
444 7-1:01010
i I I
I
,4.041.1140,
viiNtO' Ill
FRYER WITHOUT DRIPBOARD FRYER WITH DRIPBOARD p „J FqO�•
290 NOZZLE TIP POSITIONED OVER THE MIDPOINT OF THE HAZARD AREA*3 IN. �Nr� `wY„�
(7.6 cm)FROM THE MIDPOINT ALONG THE LONGEST SIDE OF THE HAZARD AND t 1 mom RIGH7TO LEFT , 000
008
IN.(2.5 cm)FROM THE MIDPOINT ALONG THE SHORTEST SIDE OF THE HAZARD AND CENTERLINE
AIMED AT THE MIDPOINT OF THE COOKING AREA. FRYER WITHOUT DRIPBOARD FRYER WITH DRIPBOARD
FIGURE 17 NOTE:3N NOZZLE TIP MUST BE LOCATED WITHIN THE PERIMETER OF THE SURFACE
002288 AREA WITHIN THE FRONT HALF OF THE FRY POT AND AIMED AT THE CENTER.
FIGURE 19
34 IN.(86 cm)MAXIMUM DIAGONAL
DISTANCE BETWEEN NOZZLE AND
CENTER OF HAZARD AREA
3,..-s' > -- I - ?.,,,Ifs i
<::. - T -
.''I 2 MINIMUM t K�� I ~' i
1
1 -Y-'w 1 VERTICAL t 1,,......,--•-...- I
I I NOZZLE
HEIGHT t 1
,iiiiiiiii ` I/ II iii
FRYER WITHOUT DRIPBOARD FRYER WITH DRIPBOARD
3N NOZZLE TIP POSITIONED ANYWHERE ALONG OR WITHIN PERIMETER OF
COOKING SURFACE AND AIMED TO THE CENTER OF THE COOKING AREA.
FIGURE 18
202287
SECTION IV — SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-13
7-1-09 REV.8
►Range Protection ►
The R-102 system uses five different nozzles for the protection of
ranges.Two of the design options require a one-flow nozzle and
three of the design options require two-flow nozzles.
NOTICE
A 13 in.(33 cm)diameter wok pan is the largest
wok size that can be protected on ranges.
When protecting hot top ranges, the entire
cooking surface must be protected.
P.Range Protection 1N (1-Flow) Nozzle — High Proximity
IApplication
►No Obstructions
Single and multiple burner ranges can be protected using a 1N
►nozzle, Part No.419335.The nozzle tip is stamped with 1N, indi-
cating that this is a one-flow nozzle and must be counted as one
flow number.
When using this nozzle for range protection,the maximum length
of the burner grates being protected with a single nozzle must not
exceed 32 in.(81 cm)and the maximum area of the burner grates
►must not exceed 384 in.2(2477 cm2)per nozzle.
When protecting a range,the 1N nozzle must be located a maxi-
mum of 10 in. (25.4 cm) from each burner grate centerline and
must be aimed at the center of the cooking surface.See Figures
►27 and 28.
/�
40 IN. -I— iiii /
(102 cm) I
\\\4,
30 IN. I //
(76 cm) 1
. ,
FIGURE 27
101N.
(5 cmj
MAXIMUM
32 IN.
(81 cm)
1N MAXIMUM
NOZZLE
AIMING
POINT
(2 IN.
(25 cm)
MAXIMUM
M
00 6540
FIGURE 28
SECTION IV – SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-16
REV.7 7-1-09
- ►Range Protection IN(1-Flow)Nozzle–Low Proximity .Range Protection Two(2)290(2-Flow)Nozzles–Low
Application I Proximity Application
15 in.to 20 in.(38.1 cm to 50.8 cm)above the cooking surface. 1,15 in.to 20 in.(38 cm to 51 cm)above the cooking surface.
The low proximity 1-flow nozzle application for the protection of The low proximity 2-flow application requires the use of two(2)290
ranges requires the 1N nozzle,Part No.419335. nozzles, Part No.419342.
The nozzle tip is stamped with 1N indicating that it is a one-flow ►Both nozzle tips are stamped with 290 indicating they are two flow
nozzle and must be counted as one(1)flow number, nozzles and must be counted together for a total of four (4)flow
When using the 1N nozzle for low proximity range protection with numbers.
or without obstruction, the maximum length of the burner grates Two (2) 290 nozzles will protect a cooking area of 1008 in.2
being protected must not be exceed 24 in.(61.0 cm)length,aimed ►(6503 cm2)with a maximum dimension of 36 in.(91 cm).
along a centerline to a point 20 in.(50.8 cm)from the end of the When using two of these nozzles for low proximity range protec-
length,protecting a maximum width of 18 in.(45.7 cm). tion, the nozzles must be positioned along the cooking surface
When protecting a range,the 1 N nozzle must be located a maxi- perimeter to 1.5 in.(3.8 cm) inside the perimeter,and aimed at a
mum of 9 in.(22.9 cm)from each burner grate centerline and must 45° angle along the longitudinal centerline of the range. See
be positioned above the edge of the hazard area to be protected. I.Figures 35 and 36.
The 1N nozzle tip must be positioned at or below the obstruction, -4.- 290 NOZZLE TIP
if present. The protected area begins at the point straight down LOCATION 0-1.5 IN. "�
from the nozzle tip.The nozzle can be placed at the side of the IN FROM EDGE OF
range aimed either left or right, or can be placed in the front or f COOKING SURFACE 45^
back of the range. See Figures 33 and 34 for nozzle location
details.
t
I I l
15 IN.TO 20 IN. 1 ( ! I 15 IN.TO 20 IN.
(38 to 51 cm) I I I (38 to 51 cm)
MAXIMUMI I ( MAXIMUM
\ ! ll II
i
�'� 000 00 0
` V__
15-201N. AIM
(38-51 cm) \, POINT ►
20I0, I FIGURE 35
I I—(51 cm)—"N-71\ 00227E
COOKING LONGITUDINAL
AREA _r, CENTERLINE
0 0 0 0
I' cvm
FIGURE 33 L/, %, 83
COOKING
PROTECTED AREA AREA
r , I1!!1
J
I 9IN.
(23 cm)
290 NOZZLE TIP
-- �);Wil
) 18 W t LOCATION CENTER OF
I ( cm)
COOKING SURFACE
I
290 NOZZLE TIP LOCATION
0—1.5 IN.(3.8 cm)IN FROM EDGE °002J9
AIM P•1
mites OF COOKING SURFACE
COOKING rIN.(5 cm)
20 IN. AREA
(51 cm)
24 IN. 00D240
(61 cm) re 0 ar
► FIGURE 34 COOKING
AREA
0 411 41101 '
290 NOZZLE TIP
R ..9— —I► LOCATION CENTER OF
\\ COOKING SURFACE
..2 IN.(5 cm)
290 NOZZLE TIP LOCATION
0—1.5 IN.(3.8 cm)IN FROM EDGE
► OF COOKING SURFACE FIGURE 36
SECTION IV - SYSTEM DESIGN
UL EX3470 ULC EX3470 Page 4-23
7-1-09 REV.8
Overhead Chain Broiler Protection (Continued)
Example No.1 -Internal broiler size is 24 in.long x 20 in.wide 'Salamander Broiler Protection-1F(1-Flow)Nozzle Overhead
(61 x 51 cm), with an opening of 16 in. x 16 in. A salamander broiler with a maximum hazard area(internal broil-
(40.6 x 40.6 cm). er chamber)of 15 in. (38 cm) deep x 31 in.(79 cm)wide can be
To determine minimum opening size, multiply the protected using a 1F nozzle, Part No.410333.Tho nozzle tip is
internal length and the internal width by 0.6: stamped with 1F,indicating that this is a one-flow nozzle.
Length of opening-24 in.x 0.6=14.4 in. The single 1F nozzle must be located directly in line with the cen-
(61 cm x 0.6=36.6 cm) ter of the broiler opening,8 in.(20 cm)to 12 in.(30 cm)in front of
Width of opening-20 in.x 0.6=12.0 in. the broiler and 12 in.(30 cm)to 18 in.(46 cm)above the top of the
(51 cm x 0.6=30.5 cm) broiler.The nozzle must be aimed at the center of the top broiler
opening when the grate is located in the middle position.The noz-
The minimum allowable opening for overhead protec- zie must be orientated so the nozzle tip flats are parallel with the
tion would be 14.4 in.x 12.0 in.(36.6 x 30.5 cm). grate left to right centerline.See Figure 57b.
This example would be acceptable for overhead pro 1F NOZZLE NOZZLE
tection. 6 IN.
(PART NO. (15 cm)I LIM LOCATION ZONE
Example No.2-Internal broiler size is 30 in.long x 24 in.wide 419333) L1 IN.(20 cm)
(76 x 61 cm) with an opening of 22 in. x 12 in. `-i IN.\-'.1
i 2 IN.
(56 x 30 cm). (1 o cm) (30°1")
To determine minimum opening size,multiply internal .........li
length and internal width by 0.6:
, �IMilreTe7.7
Length of opening-30 in.x 0.6=18.0 in. r.�e�..,a�i . .. •,
(76 cm x 0.6=45.7 cm) 1era9
-�l
Width of opening-24 in.x 0.6=14.4 in. AIM AT CENTER OF THE AIM AT CENTER OF THE TOP
(61 cm x 0.6=36.6 cm) TOP BROILER OPENING BROILER OPENING WHEN THE
WHEN THE GRATE IS GRATE IS LOCATED IN THE
Minimum allowable opening for overhead protection LOCATED IN THE MIDDLE POSITIONAIM AT CENTER
would be 18 in.x 14.4 in.(45.7 x 36.6 cm). MIDDLE POSITION OF BROILER OPENING
Because this broiler has an opening of 22 in.x 12 in., FIGURE 57b
the 12 in.width is below the minimum allowable cal-
008426
culated dimension of 14.4 in.(36.6 cm)and therefore Salamander Broiler Protection-1 N(1-Flow)Nozzle Local
would not be acceptable for overhead protection. A salamander broiler with a maximum hazard area(internal broil-
►Salamander Broiler Protection er chamber)of 15 in.(38 cm) deep x 31 in.(79 cm) wide can be
The R-102 system uses three different nozzle locations for sale- protected using a 'IN nozzle, Part No. 419335.The nozzle tip is
stamped with 1N,indicating that this is a one-flow nozzle.
mender broiler protection.All of the design options require a one
flow nozzle. The single 1N nozzle must be located above the grate on either
vertical edge of the broiler opening.The nozzle must be aimed at
Salamander Broiler Protection-1 N(1-Flow)Nozzle Overhead the center of the grates.See Figure 57c.
A salamander broiler with a maximum hazard area(internal broil-
er chamber)of 16 in,(41 cm)deep x 29 in.(74 cm)wide can be
protected using a 1N nozzle, Part No. 419335.The nozzle tip is
.stamped with 1N,indicating that this is a one-flow nozzle.
The single 1N nozzle must be located directly in line with either 111140111111111111111111°I
vertical edge of the broiler opening,6 in.(15 cm)to 12 in.(30 cm) v �I
in front of the broiler,and 0 in.to 12 in.(30 cm) above the top of `�•��
the broiler.The nozzle must be aimed at the center of the broiler
►opening.See Figure 57a.
0000001/1
VERTICAL EDGE „+1�```���
OF BROILER IJ ~
OPENING
1N NOZZLE
t. (PART NO.419335)
NOZZLE
\ as LOCATION ZONE IN NOZZLE
OF
12 IN. Mill
(30 cm) i.iG 6 IN.(15 cm> GRATES
% ,. 4 - ► FIGURE 57c
� -- 00M28
i ... ,
....----------'----/,_._._._. 3 (15 cm) i
AIM AT CENTER _-- i
AIM AT CENTER OF BROILER
OF BROILER OPENING
OPENING
FIGURE 57a
00M26
4
SECTION IV — SYSTEM DESIGN
- UL EX3470 ULC EX3470 Page 4-24
REV.7 7-1-09
►Upright Broiler Protection Gas-Radiant/Electric Char-Broiler Protection
The R-102 system uses two 1/2N Nozzles(Part No.419334)for all The R-102 system uses the 1N nozzle,(Part No.419335)for gas-
►upright broiler protection.The nozzle tip is stamped 112N, indicat- radiant/electric char-broiler protection.
ing that this is a half-flow nozzle.A pair of these nozzles will equal The nozzle tip on the 1N nozzle is stamped with a 1N,indicating
one flow number. that this is a one-flow nozzle and must be counted as one flow
Two 1/2N nozzles will protect a maximum hazard area (internal number.
broiler chamber)of 30 in.x 32.5 in.(76 cm x 82.5 cm).These noz- One IN nozzle will protect a hazard with a maximum length of
►zles must always be used in pairs on an upright broiler.One noz- 36 in. (91 cm) and a total cooking area which does not exceed
zie must be positioned above the grate and pointed at the back .864 in.2 (5574 cm2). The nozzle tip must be located 15 to
opposite corner of the broiler chamber.The second nozzle must 40 in.(38 to 102 cm)above the hazard surface.When using this
be pointed down into the center of the drip pan through the open nozzle for gas-radiant/electric char-broiler protection, the nozzle
1.slot.See Figure 58. must be positioned anywhere along or within the perimeter of the
UPRIGHT BROILER maximum cooking area and shall be aimed at the center of the
►cooking surface.See Figure 59.
BROILER CHAMBER
COOKING /4?
AREA
iiiiiiill .:OZ'-"';.---'-'-. -
l
%
-=� EA .�1
AR `--
111=3=1
��r I 000276
11i��6.
DRIP
PAN U 1141 I 40 IN.
1 (102 cm)
FRONT VIEW SIDE VIEW t 1 MAXIMUM
1\.\\
! /)-
/
5 IN.(3B cm)
I I I / '' 1 MINIMUM
000252
I.
FIGURE 58 imm. 000
25
'
► FIGURE 59
SECTION IV — SYSTEM DESIGN
■ UL EX3470 ULC EX3470 Page 4-52
REV.4 7-1-09
DISTRIBUTION PIPING REQUIREMENTS(Continued) START OF LAST
Distribution Piping Requirements—1.5 Gallon System BRANCH LINE
START OF FIRST \
DUCT, PLENUM,AND APPLIANCE PROTECTION BRANCH LINE \�1
1.This option allows for duct protection, plenum protection,
appliance protection, or any combination. However, only one
SUPPLY +
l' (1)duct nozzle may be used,either a 1W or a 2W,nozzle. LINE TEE !♦ TOTAL LENGTH
► 2.All distribution , supply I in ly and branch, must be 3/8 in. • MUST NOT
p p g EXCEED 8 FT
Schedule 40 black iron,chrome-plated,or stainless steel. ( (2.4 m)
► 3.Each 1.5 gallon tank allows a maximum of five flow numbers.*
► 4.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
START OF LAST
legs of the supply line (start of first branch line to start of last BRANCH LINE
► branch line)must not exceed 8 ft(2.4 m).See Figure 111. 0 START OF FIRST
BRANCH LINE
5.The combined length of all branch lines must not exceed 22 ft ► FIGURE 111
(6.7 m).See Figure 112. 000714
► 6.The requirements of the following table must not be exceeded:
1W NOZZLE
it IN NOZZLE
O 1N NOZZLE
(BRANCH LINES IN BOLD) COMBINED LENGTH MUST
NOT EXCEED 22 Ft(6.7 m)
► FIGURE 112
was
Duct Plenum Appliance
Requirements Supply Branch Une Branch Line Branch Line
Pipe Size 3/8 in. 3/8 in. 3/8 in. 3/8 in.
Maximum Length 40 ft 6 ft 4ft 10 ft
(12.2 m) (1.8 m) (1.2 m) (3 m)
Maximum Rise E ft 4 ft 2 ft 2 ft
(1.8 m) (1.2 m) (0.6 m) (0.6 m)
Maximum 90°Elbow 9 4 4 6
Maximum Tees 1 1 2 3
Maximum Flow Numbers 5* 2 2 3
'Exceptions:
1.Six(6)flow numbers are allowed when a duct branch line Is the last branch line on the piping network and no 1N nozzles are used to protect woks or griddles.
2.Six(6)flow numbers are allowed when six(6)1N nozzles are used and none of the nozzles are used to protect woks,griddles,ranges,and salamanders.
NOTE:Only No(5)flow numbers are allowed If a 1N nozzle Is used for wok,griddle,range,or salamander protection.
3.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
1. The maximum length between the start of the first branch line SUPPLY
and the start of the last branch line must not exceed 24 ft ' TEE �;
(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 f� '
line to the start of the last branch line)must not exceed 24 ft c.-J'
' (7.3 m).See Figure 113. ' it ' 0002oe
2. The total length of all branch lines must not exceed 36 ft �j COMBINED LENGTH OF \\////
g BOTH LEGS OF SUPPLY
' (10.9 m).See Figure 113. LINE MUST NOT 3 BRANCH LINES
EXCEED 24 FT(7.3 m)
3. Use a 3/8 in.union to connect the tank adaptor to the 3/8 in.
supply line.
4. A maximum of two nozzles are allowed per duct branch line.
5. The requirements of the following table must not be exceeded:
2W NOZZLE"-........s. 1N NOZZLE
1N NOZZLE
C;::11
� 230 NOZZLE /
�^� 245 NOZZLE 1/2N NOZZLE
(BRANCH LINE IN BOLD)
- COMBINED LENGTH MUST e00502
NOT EXCEED 36 FT(10.9 m) '
FIGURE 113
Duct Plenum Appliance
fRequirements 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 E ft O 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:
' 1.TW°Ne(12)flow numbers arc allowed In any ono tank for duct and plenum protection only.
2.iWelve(12)flow numbers are allowed with any one tank using only two-flow appliance nozzles.
3.1Welve(12)flow numbers are allowed with any one tank using only three-flow appliance nozzles.
Special Instructions:
► 1.TWelve(12)flow numbers are allowed 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 4-92.
2.For certain McDonald's applications,11.5 flow numbers are allowed when using a combination of one(1)2W duct nozzle,one(1)112N electrostatic precipitator nozzle,
one(1)1N plenum nozzle,and four(4)taro-flaw appliance nozzles.Contact ANSUL Applications Engineering Department for additional Information.