HomeMy WebLinkAboutDOCUMENT Fire Support System Design 3501 Fall River RdSYSTEM DESIGN
One of the key elements for restaurant fire protection is a correct
system design.This section is divided into ten sub-sections:Noz
zle Placement Requirements,Tank Quantity Requirements,Actu
ation and Expellant Gas Line Requirements,Distribution Piping
Requirements,Detection System Requirements,Manual Pull Sta
tion Requirements,Mechanical Gas Valve Requirements,Electri
cal Gas Valve Requirements,Electrical Switch Requirements,and
Pressure Switch Requirements.Each of these sections must be
completed before attempting any installation.System design
sketches should be made of all aspects of design for reference
during installation.
NOZZLE PLACEMENT REQUIREMENTS
This section gives guidelines for nozzle type,positioning,and
quantity for duct,plenum,and individual appliance protection.This
section must be completed before determining tank quantity and
piping requirements.
Duct Protection —Single Nozzle’s
All duct protection is UL listed without limitation of maximum duct
length (unlimited length).This includes all varieties of ductworks
both horizontal and vertical including ducts that run at angles to
the horizontal and ducts with directional bends.
The R-102 system uses different duct nozzles depending on the
size of duct being protected.
2W Nozzle 419337 Maximum
100 in.(254 cm)
Perimeter
1W Nozzle 419336 Maximum
5Oin.(127cm)
Perimeter
SECTION IV SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-1
4-1-06 REV.6
GENERAL INFORMATION
1.Nozzles must be located 2-8 in.(5-20 cm)into the center of therTheANSULR-102 Restaurant Fire Suppression System may be-—used--on-a-nurnber—of---different--types-of-restaurant cooking-appli-
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
ANSUL certificate in an R-102 training program.
The R-1 02 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.
•Both systems must actuate simultaneously.
•Each system must be designed and installed per its appropri
ate manual.
•Adjacent appliances requiring protection must be protected
with the same type of system,either R-102 or PIRANHA,
unless the center-to-center spacing between the adjacent
R-102 and PIRANHA nozzles is no less than 36 inches.
•When appliances are protected with R-102 nozzles,the hood
and connecting duct above those appliances cannot be pro
tected with PIRANHA nozzles.
•Mixing systems in a common plenum is not allowed.
2—8 IN.
(8 —20 cm)
FIGURE 1
000173
2.In installations where a UL listed damper assembly isemployed,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 maximumof8in.(20 cm)in this way will not void the UL listing ofthesystem.
3.Previously listed 3 flow number and 5 flow number duct protectiondetailedinearlierpublishedmanual,Part No.418087-06,can also still by utilized.
DUCT SIZES UP TO 50 IN.(127 cm)
PERIMETERJ 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
•A 2WH nozzle (Part No.78078)must be substituted for a 2WnozzleforanyinstallationusingOption2ofthe1.5 gallon systemcoverage(duct and plenum protection only).A 2WH nozzleislimitedtoamaximumof75in.(190 cm)perimeter or a maximumdiameterof24in.(61 cm)of coverage.
The chart below shows the maximum protection available fromeachductnozzle.
Part
Description No.
3.0 Gallon
System
1.5 Gallon
System
Maximum
100 in.(254 cm)
Perimeter
Maximum
50 in.(127 cm)
Perimeter
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-5
4-1 -06 REV.4
jIenum Protection
The R-102 system uses the 1W Nozzle (Part No.419336)or the
iN Nozzle (Part No.419335)for plenum protection.The 1W noz
zle tip is stamped with 1W and the iN nozzle tip is stamped with
iN,indicating they are one-flow nozzles and must be counted as
one flow number each.When protecting a plenum chamber,the
entire chamber must be protected regardless of filter length.
VERTICAL PROTECTION —GENERAL
QneAW_npzliLL4iieieeLI2rn)QLplnurnJIla.
maximum distance from the end of the hood to the first and last
nozzle must be no more than 2 ft.(.6 m).After the first nozzle,any
additional nozzles must be positioned at a maximum of 4 ft.(1 .2 m)apart down the entire length of the plenum.The plenum width must
not exceed 4 ft.(1.2 m).(The 1W nozzle can be used on single or
V-bank filter arrangements.)See Figure 6.
FIGURE 6
000197
When protecting plenums with the 1W nozzle,two options of cov
erage are available:
OptIon 1:The 1W nozzle must be on the center line of the single
or “V’bank filter and positioned within 1-20 in.
(2.5-51 cm)above the top edge of the filter.See
Figure 7.
Option 2:The 1W nozzle must be placed perpendicular,8-12 in.(20-30 cm)from the face of the filter and angled to thecenterofthefilter.The nozzle tip must be within 2 in.
(5 cm)from the perpendicular center line of the filter.See Figure 8.
////s
12 IN.(30 Cm)
MAXIMUM
4 IN..‘
(10
8 IN.(20 Cm)
NOZZLE TIP
MUST BE WITHIN
THIS AREA
FIGURE 8
000200
3HORIZ0NTAL PROTECTION —OPTION 1
iN NOZZLE —PART NO.419335 —SINGLE BANK PROTECTION
One iN nozzle will protect 10 linear feet (3.1 m)of single filter bankplenum.The nozzle(s)must be mounted in the plenum,2 to 4 in.(5 to 10 cm)from the face of the filter,centered between the filterheightdimension,and aimed down the length.The nozzle must bepositioned0-6 in.(0-15 cm)from the end of the hood to the tip of the
L
nozzle.See Figure 9.
,1
t
20 IN.(51 cm)
MAXIMUM
I IN.(25 cm)
MINIMUM
t
20 IN (51 cm)
MAXIMUM
t
I IN,(2.5 cm)
MINIMUM
FIGURE 7
000199
Appliance Protection
The following pages detail types of appliance protection.Each
design requires several factors correct nozzle choice,correct noz
zle height above hazard,correct nozzle location and correct aim
ing point.
Fryer —Single Nozzle Protection
1.Design requirements for fryors are broken down into two
types.
A.FRYERS WITHOUT DRIPBOARDS
If the fryer does not include a dripboard,measure the
internal depth (horizontal dimension from front to back)
and length of the frypot.
B.FRYERS WITH DRIPBOARDS
If the fryer includes any dripboard areas,measure both
the internal depth (horizontal dimension from front to
back)and length of the frypot portion,and then measure
the internal depth and length of the overall hazard area
including any dripboard areas.
2.Using Table,“Maximum Cooking Area Dimension —Single
Nozzle Fryer Protection,”determine which nozzle is needed
to protect the fryer based on the maximum dimensions listed.
A.If the fryer does not include a dripboard,use the maxi
mum dimensions listed in the first column of the table to
select the correct nozzle.
B.If the fryer includes any dripboard areas,use both the
maximum frypot dimensions in the first column of the
table,and the maximum overall dimensions in the second
column of the table to select the correct nozzle.None of
the maximum dimensions in either column may be
exceeded.
3.If either the maximum frypot or the overall sizes are exceed
ed,an additional nozzle(s)will be required.Refer to the mul
tiple nozzle requirements.
Example:A fryer with a dripboard.The inside of the frypot without
the dnpboard measures 18 in.in depth x 18 in.in length (46 cm x
46 cm)and the inside of the overall area including the dripboard
measures 18 in.in depth x 24 in.in length (46 cm x 61 cm).From
the Table “Maximum Cooking Area Dimension —Single Nozzle
Fryer Protection,”either the 3N or the 290 nozzle should be select
ed to protect the fryei depending on the maximum nozzle height
above the fryer and the positioning requirements allowed.Refer to
appropriate Figures.
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-7
10-1-02 REV.3
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-8
REV.6 4-1-06
Fryer —Single Nozzle Protection (Continued)
Maximum Area Dimensions —Single Nozzle Fryer Protection
NOZZLE TIP POSITIONED ANYWHERE ALONG OR WITHIN PERIMETER OF COOKING
SURFACE AND AIMED TO THE CENTER OF THE COOKING AREA.
FIGURE 15
0022B0
Max.Size
Max.Size Overall Type of Nozzle Height Nozzle
Frypot Only With Dripboard Nozzle Above Top of Fryer Location
Full or Split Vat Full or Split Vat 230 27 in.to 47 in.See Figure
14 in.x 15 in.14 in.x 21 in.(69cm to 119 cm)15 and 16
(36cmx38cm)(36cmx53cm)
Full or Split Vat Full or Split Vat 245 20 in.to 27 in.See Figure
14 in.x 15 in.14 in.x 21 in.(51 cm to 69 cm)15 and 16
(36cm x38cm)(36cm x53cm)
Full or Split Vat Full or Split Vat 290 13 in.to 16 in.See Figure 17
14 in.x 15 in.14 in.x 21 in.(33 cmto 41 cm)
(36 cm x 38 cm)(36 cm x 53 cm)
Full or Split Vat Full or Split Vat 290 16 in.to 27 in.See Figure 17141/2in.xl4in.141/2in.x261/2in.(4lcmto6gcm)
(37 cmx 38 cm)(37cm x 67 cm)
FRYER WITHOUT DRIPROARD FRYER WITH DRIPROARD FRYER WITHOUT DRIPSOARD FRYER WITH DRIPEOARD
SPLIT VAT
NOZZLE TIP POSITIONED ANYWHERE ALONG OR WITHIN PERIMETER OF COOKING
SURFACE AND AIMED TO THE CENTER OF THE COOKING AREA.
FIGURE 16
OO22B
SECTION IV -SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-16
REV.6 4-1-06
Range Protection 2-Flow Nozzle
Low Proximity Application Two (2-Flow Nozzles):15 in.to 20 in.COOKING LONGITUDINAL(38 cm to 51 cm)above the cooking surface.AREA CENTERLINE
The low proximity application requires two (2)290 nozzles,Part
I
I //
No.41 9342.
The nozzle tip is stamped with 290 indicating this is a two flow noz-
1Efi]EJ1-
COOKINGzieandmustbecountedastwoflownumbers.--
Two (2)290 nozzles will protect a cooking area of 1008 sq.in.
(6503 sq.cm)with a maximum dimension of 36 in.(91 cm).
When using two of these nozzles for low proximi range protec-
1L
iii]AEA
tion,the nozzles must be positioned along the cooking surface 290 NOZZLE TIPperimeterto1.5 in.(3.8 cm)inside the perimeter,and aimed at a LOCATION CENTER OF
COOKING SURFACE45anglealongthelongitudinalcenterlineoftherange.See
*2 IN.(5 cm)Figures 33 and 34.290 NOZzLE TIP LOCATION
0—1.IN.(3.8 cm)IN FROM EDGE
OF COOKING SURFACE-a-
1SIN.T0201N I
(38 to 51 cm)
MAXIMUM
290 NOZZLE TIP
LOCATIONO—I.5IN.
(0—3.8 cm)
IN FROM EOGEOF
COOKING SURFACE COOKING ___
151N.TO2OIN.
(38 Ic 51 cml
MAXIMUM
I
000000
ooamo
0C0239
t
COOKING
AREA
ci
DE3E2
FIGURE 33
002276
290 NOZZLE TIP LOCATION
0—1.5 IN.(3.8 cm)IN FROM EDGE
OF COOKING SURFACE
\
290 NOZZLE TIP
LOCATION CENTER OF
COOKING SURFACE
±2 IN.(5 cm)
FIGURE 34
Griddle Protection 1-Flow Nozzle
The R-l 02 system uses four different nozzles for the protection of
griddles.One of the applications requires a 1-flow nozzle and
three of the applications require a 2-flow nozzle.
High Proximity ApplicatIon:35 in.to 40 in.(69 to 102 cm)above
the cooking surface.
This high proximity application uses theN nozzle,Part No.
419335.—
The nozzle tip is stamped with 1N indicating this is a one-flow noz
zle and must be counted as one flow number.
One iN nozzle will protect a maximum cooking area of 1080 sq.
in.(6968 sq.cm)with the maximum longest side of 36 in.(91 cm).
When using this nozzle for griddle protection,the nozzle must be
positioned along the cooking surface perimeter to a maximum of
2 in.(5 cm)inside the perimeter,and aimed to the midpoint of the
cooking surface.See Figure 35 and 36.
NOTICE
When using this type of griddle protection,only
5 flow numbers are allowed on a 1.5 gallon sys
tem and only 11 flow numbers are allowed on a
3 gallon system.
SECTION IV -SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-17
10-1 -02 REV.5
r
iN NOZZLE LocATED ALONG
ANY SIDE OF GRIDDLE SURFACE
WITHIN 0 —2 IN.(0 —5 cm)OF
COOKING SURFACE EDGE.NOZZLE
MUST RE AIMED AT MIDPOINT OF
COOKING SURFACE
COOKING SURFACE EDGE
NOZZLE LOCATION
I I 0—2 IN.(0—Scm)
I I INSIDE PERIMETER
14—OF COOKING SURFACE
FIGURE 36
Dm243
a-
MIDPOINTOF
COOKING SURFACE
L_
FIGURE 35
OOO24
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-43
4-1-06 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.
Regulated Release
Cartridge Options
_________
Nitron Carbon Dioxide
LT-20-R 101-10
6—11 (1)3.0 Gallon LT-30-R 101 -20
11 —16 (1)1.5 Gallon Double
(1)3.0 Gallon
16 —22 (2)3.0 Gallon Double
When one or more regulated actuators are used,the following
tank and cartridge combinations apply for each regulated actuator:
For exceptions to maximum flow numbers,see Distribution Piping Requirements for 1.5 gallon
and 3.0 gallon systems in this Section.
The 10130 cartridge can not be used when (2)two 30 gallon tanks are manitolded 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 andexpellantgaslinesbetweentheregulatedreleasemechanismreg
ulator,each regulated actuator regulator,and each agent tank.These limitations should be considered when selecting the com
ponent mounting locations.
Actuation Gas Line —6 to 8 Tanks Maximum
8 Tank maximum ref lects 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.
2.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
101 -20 carbon dioxide cartridge.See Figure 80.
Total
Flow
Num bers*
Quantity and
Size of
Tank(s)
1 —5 (1)1.5 Gallon
101-30
10130*
Regulated Actuator
Tank(s)
(1)1.5 Gallon
(1)3.0 Gallon
(1)1.5 Gallon and
(1)3.0 Gallon
(2)3.0 Gallon
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 101 30**or
double tank
REGULATED ACTUATOR ASSEMBLY
EXPELLANT GAS LINES
NOT INCLUDED IN ACTUATION
GAS LINE LENGTH TOTALS
ACTUATION GAS LINE WITH AN LT-20-R,
LT30-R,101-tO OR 101-20 CARTRIDGE
MAXIMUM LENGTH OF 20 FT.(Sm),
MAXIMUM NO.OF FITTINGS 9
‘ANSUL AUTOMAN
REGuLATED RELEASE
ASSEMBLY
FIGURE 80
550775
ACTUATION AND EXPELLENT GAS LINE REQUIREMENTS
SECTION IV -SYSTEi6t DESIGN
UL EX.3470 ULC CEx747 Page 4-45
4-1-06 REV.3
(Continued)
Expellant Gas Line
1.The expellant gas line piping is installed from the regulated
release mechanism in double and multiple-tank systems,and
from the regulated actuator assembly in multiple-tank sys
tems.The expellant gas line is the piping between the regula
tor 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 notexceed30ft.(9 m)when using a double-tank”cartridge,an
LT-A-101-30 Cartridge,or a 101 -30 Cartridge.See Figures 83
and 84.
2.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.
3.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 notexceed30ft.(9 m)when using a “double-tank”nitrogen cartridge,an LT-A-1 01-30 nitrogen cartridge,or a 101-30 carbondioxidecartridge.See Figure 81.
DISTRIBUTION PIPING REQUIREMENTS
Once the nozzle placement and quantity of tanks has been determined,it is then necessary to determine the piping configurations
between the tank adaptor and each discharge nozzle.This sectioncontainstheguidelinesandlimitationsfordesigningthedistribu
tion piping so that the liquid agent will discharge from the nozzlesataproperflowrate.These limitations should also be referred towhenselectingthemountinglocationfortheregulatedreleasemechanismandagenttank.
General Piping Requirements
1.All R-1 02 system piping is straight line.Therefore,the need forcriticallengthsandbalancingisminimized.
2 Two 45°elbows count as one 90°elbow.
3.Each branch line includes the tee or elbow leading to it,and
all fittings within the branch line itself.
4.The minimum piping length of Schedule 40,3/8 in.pipe fromthetankoutlettoanynozzleprotectingarange,fryer,or wokmustbe6ft.(1.8 m).
FIGURE 85
000776
6.All distribution piping must be 3/8 in.Schedule 40 black iron,chrome-plated,or stainless steel.Do not use hot dipped galvanizedpipeonthedistributionpiping.
7.All threaded connections located in and above the protectedareamustbesealedwithpipetape.Tape should be applied tomalethreadsonly.Make certain tape does not extend over theendofthethread,as this could cause possible blockage of theagentdistribution.
8.Before installing blow-off caps on nozzles,apply a smallamountofDowCorningNo.111 silicone grease across theopeinginthenozzletipandalsoasmallamountcoatingtheexterioroftheblow-off cap.This will help keep cooking grease
from building up on the cap.
EXPELLANT GAS LINE
MAXIMUM LENGTH -30 FT.l m),
MAXIMUM NO.OF FITrINGS -9
ANSUL AuT0MAN-
REGuLATED RELEASE
ASSEMBLY
EXPELLANT GAS LINE
MAXIMUM LENGTH —30 FT (9 m),
MAXIMUM NO.OF FIlliNGS 9
5.Pipe lengths are measured from center of fitting to center ofFIGURE83fitting.See Figure 85.000776
REGuLATEO ACTUATOR
ASSEMBLY
FIGURE 84
000777 9.Tees used in the distribution piping can be used as thru tees,side outlet tees,or bull tees.
SECTION IV -SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-46
REV.5 4-1-06
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 86.
NOTE:THIS IS A CONCEPTUAL ORAWING’ONLY.
THIS IS NOT AN ACTUAL INSTALLATION.
FIGURE 86
000779
NOTE:THESE ARE EXAMPLES ONLY.OTHER CONFIGURATIONS CAN BE DESIGNED.
END OF
SUPPLY LINE
SUPPLY LINEI
The Supply Line is defined as the length of pipe which runs fromtheagenttankoutlettothelastbranchline(whether a duct,appliance,or plenum branch line).This includes all supply line fittingsexceptfortheteesorelbowsleadingtothebranchlines.SeeFigures86and87.
LINE
DUCT
BRANCH LINE
SUPPLY
LINE
PLENUM
BRANCH LINE
APPLIANCE
BRANCH LINE
END OF
SUPPLY LINE
SUPPLY
LINE TEE
FOR
END OF
SUPPLY LINE
BRANCH LINE CANNOT
START AHEAD OF A
SUPPLY LINE TEE
FOR
BRANCH LINE CANNOT
START AHEAD OF A
SUPPLY LINE TEE
FIGURE 87
0097B0
DISTRIBUTION PIPING REQUIREMENTS (Continued)
SECTION IV SYSTEM DESIGN
LJL.EX.3470 ULC CEx747 Page 4-47
4-1-06 REV.4
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 87 and 88.
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 me fittings as well as the tee or elbow used to start the
branch line.See Figures 86 and 89.
DUCT BRANCH LINE
(ELBOW INCLUDED)
‘.,--.-$
DUCT BRANCH LINE
(TEE INCLUDED)
PLENUM BRANCH LINE
(TEE INCLUDED)
----i:
-----u;
PLENUM BRANCH LINE
I (TEE INCLUDED)
Ii
FIGURE 89
OTh2
JAPPLIANCE 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 87 and 90.
4
FIGURE 88
OOO78
APPLIANCE BRANCH LINES
(TEES INCLUDED)
FIGURE 90
SECTION IV SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-49
4-1-06 REV.4
SUPPLY
3 BRANCH LINES
COMBINED LENGTH OF
BOTH LEGS OF SUPPLY
LINE MUST NOT
EXCEED 24 FT.(7.3 m)
(BRANCH LINE IN BOLD)
COMBINED LENGTH MUST
NOT EXCEED 36 FT (10.9 m(
Exceptlons:
I.Twelve (12)flow numbers are allowed in any one tank Icr duct and plenum protection only.
2.Twelve (t2(flow numbers are allowed with any one tank using only two-ttow appliance nozzles.
3.Twelve (t2(flow numbers are allowed with any one tank using only three-llow appliance nozzles
Special Instructions;
I.Twelve (12)flow numbers are allowed when four (4(Dean Industries SrI Gas Fryors are protected allow proximity as shown in Figure 58 on Page 4-32.The discharge piping mustbeesshowninFigure59onPage4-32.
2.For certain McDonalds applications,11.5 110w numbers are allowed when using a combination of one (1(2W duct nozzle,one (1)1/2N electrostatic precipitator nozzle.one (1(IN plenum nozzle,and four (4(two-flaw appliance rtazzles,Contact Aesul Applications Engineering Department for additional information
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 93.
2.The total length of all branch lines must not exceed 36 ft.
(10.9 m).See Figure 93.
3.Use a 3/8 in.union to connect the tank adaptor to the 318 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:IN NOZZLE
230
112N NOZZLE
000502
FIGURE 93
Duct Plenum Appliance
Requirements SuDply 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)(.6 m)(.6 m)
Maximum9c5 9 4 4 6
Elbows
Maximum Tees 1 2 2 4
Maximum Flow 11*4 2 4
Numbers
DETECTION SYSTEM REQUIREMENTS
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-53
4-1-06 REV.3
Once the fire suppression system design has been determined,a
detection system design must be completed.This section contains
guidelines and limitations for detection system installation.
Detector IdentificatIon
The Iwo types of detectors are distinguished from each other by
their location in the detection system.
1.The Terminal Detector (Part No.56838,15375,or 417368)is
the last in a series of detectors,or the only detector used in a
single-detector system.This detector is thus named because
it is at the point at which the wire rope ends,or ‘terminates.”
2.A Series Detector (Part No.56837,15373,or 417369)is any
detector located in-line between the regulated release mech
anism and the terminal detector.
Detector/Pulley Elbow Quantity
The quantity of detectors used in the system will vary depending
on the style of detector used.
1.Conduit runs,pulley elbows,and number of detectors per sys
tem must be within the approved system guidelines.The fol
lowing requirements must not be exceeded:
Clip on Style 12
Detector
Hinge Style 5
Detector
Maximum Maximum Maximum
Number of Number of Length of 1/2
Detectors Elbows in.Conduit
per System per System per System
18 125 ft.(38,1 m)
8 103ft.(31.3m)
150 ft.(45.7 m)Scissors Style 15 201Detector
2.If hinge style detectors are mixed in a system with either clip-
on or scissor style,4 series and 1 terminal is the maximum
number allowed,If clip-on style are mixed with scissor style,
the maximum allowed is 11 series and 1 terminal.
NOTICE
When using the “clip-on”style detector,the ter
minal detector may use the “hinged”style
mounting bracket with the “clip-on”style linkage.
This is only allowed with the terminal detector.
No other linkages are allowed to be mixed
with other brackets.When using this option,
the total number of “clip-on style detectors (11
series and 1 terminal)is still allowed.
3.If hinge style detectors are mixed in a system with either clip-
on or scissor style,the maximum length of wire rope must not
exceed 103 ft.(31.4 m)and the maximum number of pulley
elbows must not exceed 8.If clip-on style are mixed with scis
sor style,the maximum length of wire rope must not exceed
125 ft.(3.81 m)and the maximum number of pulley elbows
must not exceed 18.
4.If the hazard requires more than 15 detectors,up to five 101
Remote Releases (Part No.32381)can be used for system
actuation.Each 101 remote release allows the use of a maxi
mum of 15 “scissor”style detectors (14 series and 1 terminal)
for a total of 75 detectors if needed.
Detector Placement Requirements
EXHAUST DUCTS
Each exhaust duct must have at least one detector installed in the
duct entrance,located in the airstream of the cooking vapors,or at
a maximum of 20 ft.(6.1 m)into the duct opening.See Figure 98.
When gas appliances are used and the flue
gases from the burner are exhausted into the
duct,the detector must be kept out of the air
stream of these exhaust gases.These gases
can be very hot and could actuate the system
unnecessarily.
Duct openings that are long and narrow or large
enough to require multiple duct nozzles may
require additional detectors.
ELECTROSTATIC PRECIPITATOR
If an electrostatic precipitator is located at or near the base of the
exhaust duct,it is necessary to locate a detector below the pre
cipitator,at the base of the duct,and also locate one in the duct,
just above the precipitator.See Figure 99.
When installing the detector bracket and system conduit,make
certain they do not interfere with the operation of the precipitator.
Note:On secondary filtration units utilizing multiple filter
stages/media,contact Ansul Technical Services for instructions.
NOTICE
FIGURE 98
000271
FIGURE 99
000268
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-54
REV.3 4-1 -06
Detector Replacement Requirements (Continued)
COOKING APPLIANCES
If the cooking appliance is located under an exhaust duct where a
detector has been mounted,it is normally not necessary to utilize
another detector for that cooking appliance,provided the detector
is not more than 12 in.(30 cm)into the duct.See Figure 100.
I I
Each cooking appliance with a continuous cooking surface not
exceeding 48 in.x 48 in.(122 x 122cm)can be protected by a min
imum of one detector.Cooking appliances with a continuous cook
ing surface exceeding 48 in.x 48 in.can be protected by at least
one detector per 48 in.x 48 in.cooking area.Detectors used for
cooking appliances must be located above the protected appli
ance toward the exhaust duct side of the appliance.The detector
should be located in the air stream of the appliance to enhance
system response time.
Note:For overlapping detector coverage,see Page 4-42 for
design requirements.
Detection Line Requirements
CONDUIT
Rigid conduit or 1/2 inch EMT thin-wall conduit may be used.
Standard steel conduit fittings (compression type are recommend
ed)must be employed to properly install the detection system.All
conduit or pipe must be firmly supported.When using pipe,make
certain that all ends are carefully reamed,deburred and blown
clear of chips and scale before assembly.
NOTICE
The conduit offset can be used at the top or bot
tom of the regulated release to change direction
of the conduit.The conduit offset cannot be
used with pulley tees.All other changes in direc
lion must be made by using ANSUL approved
pulley elbows,Part No.423254 or 415670.See
Figure 101.
FIGURE 102
Select correct UL Listed fusible link(s)for installation in detector(s)
according to the temperature condition.Two styles are available.
See Figure 102.See Component Section for detailed temperature
ratings.
n
[PLIANCE
I REQUIRES
I SEPARATE
DETECTOR
APPLIANCE APPLIANCE
COVERED BY COVERED BY
DETECTOR DETECTOR
UNDER DUCT UNDER DUCT
APPLIANCE
REQUIRES
SEPARATE
DETECTOR
I Fusible Link Selection
FIGURE 101
000270
FIGURE 100 When possible,temperature readings should be taken at each
°°°°detector location to determine correct fusible link temperature rat
ing.Temperature can be recorded using either a maximum regis
tering thermometer,Part No.15240,temperature tape or any other
accurate thermometer.
0
000170
K STYLE
TEMPERATURE RATING
STAMPED ON FUSIBLE
LINK BODY
000171
ML STYLE
500 F (260 C)ONLY
SECTION IV SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-55
4-1-06 REV.3
MANUAL PULL STATION REQUIREMENTS
One pulley tee,Part No.427929,is allowed per system.
TEE CLOSE TO AUTOMAN (EXAMPLE)
TEE CLOSE TO GAS VALVES OR MANUAL PULL (EXAMPLE)
121N.121N.
LI U PULLEY TEE
GAS VALVE OR GAS VALVE OR
MANUAL PULL MANUAL PULL
AUTOMAN
149 FT.(45.4 m)AND 20 PULLEY ELBOWS BETWEEN
AUTOMAN AND TEE
Metal Stamped Style —Part No.4835 or 54011
Parts that may be used for installation of a metal stamped remote
manual pull station are:
1/16 in.Stainless Steel Cable 50 ft.(15 m)
Oval Press-To-Crimp Sleeves
Glass Break Rod (1)
MECHANICAL GAS VALVE REQUIREMENTS
An ANSUL or ANSUL approved mechanical gas shut-off valve
system can be attached to the R-102 system.The system works
both mechanically and pneumatically by use of an air cylinder
located inside the regulated release assembly.Upon actuation of
the fire suppression system,a pneumatically-operated air cylinder
assembly will mechanically close the gas shut-off valve.
The total length of the cable for each mechanical gas valve must
not exceed 150 ft.(46 m).The maximum number of pulley elbows
that may be used is 20 for each valve.
One pulley tee (Part No.427929)is allowed per system.
The maximum length of cable from the AUTOMAN to a gas valve is
150 ft.(45.7 m)with a maximum of 20 pulley elbows used per side
of the tee.As the tee is located farther from the AUTOMAN,the
150ff.(45.7 m)maximum must be observed but as pulley elbows are
placed between the AUTOMAN and the tee,they must be deducted
from the available pulley elbows (20)allowed on each side.
Example:If 10 pulley elbows are placed between the AUTOMAN
and the pulley tee,the maximum available pulley elbows left for
use on each side of the tee is 10 per side.See Figure 103 for three
different exarnples.
Parts that may be used for installation of a Mechanical Gas Shut
off Valve are:
Description
________
Gas Valve/Actuator 3/4 in.Assembly (ANSUL)*
Gas Valve/Actuator 1 in.Assembly (ANSUL
Gas Valve/Actuator 11/4 in.Assembly (ANSUL)*
Gas Valve/Actuator 1 1/2 in.Assembly (ANSUL)
Gas Valve/Actuator 2 in.Assembly (ANSUL)*
Gas Valve/Actuator 2 1/2 in.Assembly (ASCO)*
Gas Valve/Actuator 3 in.Assembly (ASCO)
Pulley Elbow
Pulley Elbow
Pulley Tee
1/16 in.Stainless Steel Cable
50 ft.(15 m)or 500 ft.(152 m)roll
Oval Press-To-Crimp Sleeve
Stop Sleeve (2)
AssembIy includes parts listed below:
Air Cylinder Assembly
Air Cylinder
Tubing Assembly
Copper Tubing,1/8 in.
Male Elbow
FIGURE 103 Male Connector
sower Machine Screw (2)
Hex Nut (2)
Lockwasher (2)
Visual Inspection Seal (2)
A remote manual pull station allows the R-102 system to be man
ually operated at some point distant from the regulated release
assembly.The pull station should be installed at a height of 42-48
in.(107-122 cm),in accordance with the requirements of the
American Disabilities Act (ADA)and the Authority having Jurisdic
.tion.and located in the path of egress.The pull station is the only
source of manual actuation of the regulated release assembly.
The total length of the cable used for each manual pull station with
in a system must not exceed 150 ft.(46 m).
The maximum number of pulley elbows that may be used per pull
station is 20.
Description
Remote Manual Pull Station Assembly*
Remote Manual Pull Station Assembly
Pulley Elbow
Pulley Elbow
Pulley Tee
Assembly includes parts listed below:
Part No.
54011
4835
423250
415670
427929
15821
4596
4834
The maximum length of cable from the AUTOMAN to a pull station
is 150 ft.(45.7 m)with a maximum of 20 pulley elbows used per
side of the tee.As the tee is located farther from the AUTOMAN,
the 150 ft.(45.7 m)maximum must be observed but as pulley
elbows are placed between the AUTOMAN and the tee,they must
be deducted from the available pulley elbows (20)allowed on each
side.
Example:If 10 pulley elbows are placed between the AUTOMAN
and the pulley tee,the maximum available pulley elbows left for
use on each side of the tee is loper side.See Figure 103 for three
different examples.(Note:Both must be gas valves or both must
be pull stations.Mixing is not allowed.)
PULLEY TEE
12 IN.05mm)
AUTOMAN
GAS VALVE OR GAS VALVE OR
MANUAL PULL MANUAL PULL
149 FT.(45.4 m)AND 20 PULLEY ELBOWS MAXIMUM
PER EACH SIDE OF TEE
TEE HALFWAY BETWEEN AUTOMAN AND GAS VALVES OR MANUAL PULL (EXAMPLE)
75 FT.(22.9w)AND 10 PULLEY ELBOWS
AUTOMAN
75 FT.(22.9 m)AND 75 FT (229 m)AND
tO PULLEY ELBOWS to PULLEY ELBOWS
O
GAS VALVE OR
MANUAL PULL
PULLEY TEE
GAS VALVE OR
MANUAL PULL
Part No.
55598
55601
55604
55607
55610
25937
25938
423250
415670
427929
15821 or
79653
4596
26317
15733
15521
15529
15525
15523
15522
15421
15527
4141
197
SECTION IV —SYSTEM DESIGN
UL EX.3470 ULC CEx747 Page 4-56
REV.3 4-1 -06
MECHANICAL GAS VALVE REQUIREMENTS (Continued)
All valves above are UL listed and approved.They may be mount
ed in any position.Pipe threads are type NPT.Ambient operating
temperature range of all valves is 32 °F to 120 “F (0 °C to 49 °C).
The valves are not weatherproof and must be located indoors in
areas approved by the authority having jurisdiction.”
ELECTRICAL GAS VALVE REQUIREMENTS
A UL Listed electrically-operated gas shut-ott valve can be
attached to the R-102 system to provide an electrical means of
shutting off the gas line at a predetermined point.If an electric gas
shut-off valve is used in the system it must be attached with both
an electric (snap-action)switch and a manual reset relay.For more
information on the types of electric (snap-action)switches,refer to
the Electrical Switch,Field Installation section.The manual reset
relay is reviewed in this section.
All electrical connections should be performed by a QUALIFIED
ELECTRICIAN and in accordance with authority having
jurisdiction.
The following is a brief explanation of how the R-1 02 system oper
ates with an Electric Gas Shut-off Valve attached:
With the regulated release cocked in the ready condition,the nor
mally closed contacts in the snap-action switch allow current to
flow to the manual reset relay.With the relay coil energized,nor
mally open contacts in the reset relay close,allowing the solenoid
in the gas valve to be energized.
Once the R-1 02 system is activated,the normally closed contacts
in the snap-action switch will open,de-energizing the reset relay.
This will,in turn,open the contacts in the relay which will cause the
gas valve to become de-energized and close.
The system must be re-armed and the “push to reset”button on
the reset relay must be operated to reopen the gas valve.
It is important to note that a power failure or an electrical power
interruption will cause the gas valve to close even though the sys
tem was not fired.
In either case,whether in a fired condition or when a power failure
has occurred,the manual reset relay and electric gas shut-off
valve must be reset to resume a normal operating condition.For
resetting,refer to the “Recharge and Resetting Procedures”
section In this manual.
Approvals
ANSUL gas valves listed in this section are UL listed and approved
for 110 VAC.If more information is required,refer to the Gas and
Oil Equipment List of Underwriters Laboratories,Inc.under
“Electrically Operated Valves Guide No.440 A5”or consult Ansul
Incorporated,Marinette,Wisconsin 541 43-2542.
If other gas valves are used,they shall be “UL listed electrically-
operated safety valves for natural or LP gas as required,of appro
priate pressure and temperature rating,110 VAC/60 Hz.”The infor
mation on temperature and type of gas that the valves are suitable
for may be found in the Gas and Oil Equipment List of
Underwriters Laboratories,Inc.under “Electrically Operated
Valves Guide No.440 A5.”
The electrically operated gas valve must be of the type that needs
to be energized to remain open.
Parts that may be used for installation of a 110 VAC Gas Shut-off
Valve are:
‘Valves are normally closed when deenerzed.
ALARM INITIATING SWITCH REQUIREMENTS
The Alarm Initiating Switch can be field mounted within the
ANSUL AUTOMAN release.The switch must be used to close a
supervised alarm circuit to the building main fire alarm panel when
the ANSUL AUTOMAN release actuates.This action will signal the
fire alarm panel that there was a system actuation in the kitchen
area.The switch kit contains all necessary mounting components
along with a mounting instruction sheet.See Page 5-25 for wiring
information.
The switch is rated 50 mA,28VDC.
ELECTRICAL SWITCH REQUIREMENTS
The electric (snap-action)switches for the R-1 02 system are spe
cially designed to fit the regulated release assembly.The switches
are intended for use with electric gas valves,alarms,contactors,
lights,contractor supplied electric power shut-ott devices,and
other electrical devices that are designed to shut off or turn on
when the fire suppression system is actuated.(See Figures
104 through 106 for reference.)
Contractors shall supply “UL listed,enclosed industrial control
equipment or magnetic switch having a rating matching that of the
cooking appliance,coil 110 VAC/60 Hz or 24 VAC/60 Hz.”
All electrical connections should be performed by a QUALIFIED
ELECTRICIAN and in accordance with authority having
jurisdiction.
Electric (Snap-Action)Switches that may be field installed are:
Each switch has a set of single-pole,double throw contacts rated
at 21 amp,I HP,125,250,277 VAC or 2 HF 250,277 VAC.
Note:A relay must be supplied by others if the equipment load
exceeds the rated capacity of the switch.
Electrical wiring and equipment shall be installed in accordance
with NFPA 70 (National Electrical Code)or the requirements of the
authority having jurisdiction.
If a fire alarm system is provided,the fire extinguishing system
shall be connected to the alarm system in accordance with the
requirements of NFPA 72,National Fire Alarm Code,so that the
actuation of the extinguishing system will sound the tire alarm as
well as provide the extinguishing function of the system.
If supervision of the electrical detection,electrical actuation or
electrical power supply circuit is provided,it shall give prompt audi
ble or visual indication of trouble and shall be distinctive from
alarms or indicators indicating operation or hazardous conditions
as specified in NFPA 17A.
Electric Solenoid Valve,3/4 in.NPT”
Electric Solenoid Valve,1 in.NPT”
Electric Solenoid Valve,1 1/2 in.NPT”
Electric Solenoid Valve,2 in.NPT”
Electric Solenoid Valve,3 in.NPT”
Manual Reset Relay (110 VAC)
Part No,
13707
13708
13709
13710
17643
14702
Part No.
428311
Description
Alarm Initiating Switch Kit
Part No.
423878
423879
423880
423881
Description
One Switch Kit -
Two Switch Kit
Three Switch Kit
Four Switch Kit