HomeMy WebLinkAbout660 CARLSBAD VILLAGE DR; ; FS110017; PermitCity of Carlsbad
Fixed Systems Permit
Permit No: FSII00I7
660 CARLSBAD
Job Address:
VILLAGE DR
Permit Type: FIXSYS
Parcel No: 2033042600
Lot #: 0
Reference No.:
PC #:
Status: FINAL
Applied 6/3/2011
Approved: 6/3/2011
Issued: 6/3/2011
Inspector:
Project Title: CATCH HOOD & DUCT PLAN CHECK & INSPECTIONS
Applicant:
INTERSTATE FIRE PROTECTION
36140 JANA LANE
WILDOMAR, CA
951-764-2921
Owner:
PARKER FAMILY PROPERTIES L L C
C/O KATHRYN M VENEZIA
560 HIGHLAND DR
DANVILLE CA
Fees ($) Adcfl Fees(s) Total ($) Balance($)
130 0 130 1 0
Chapter 3— System Design
Page 3 -1
Revision 2
—1IiT(jdr;.
System Design
OVERVIEW OF SYSTEM DESIGN respectively. It can also protect a round duct with a
maximum circumference of 50' (16" maximum
The following chapter will cover the proper design of the
diameter). See Figure 3-1 & 3-2.
Buckeye Fire Equipment Kitchen Mister Fire Ducts 150" Maximum Perimeter
Suppression System. It is divided into three sections:
Nozzle Coverages and Placements
Piping Limitations
Detector Placement
Design of the Kitchen Mister System must be in
compliance with the parameters set forth in this manual
and be performed by a factory trained, Authorized
Buckeye Fire Equipment Dealer. Buckeye Fire
Equipment is not responsible for systems installed or
maintained by personnel that are not factory trained and
Authorized.
NOZZLE COVERAGE. PLACEMENT.
- AND AIMING
This sectiori will give detailed guidelines for.determining
nozzle type, positioning, and aim point for appliance,
plenum, and duct protection.
Duct Protection
It is not necessary to shut down or damper the exhaust
Ian for the system to function properly. It is
recommended that the exhaust fan be left on during
system discharge to help distribute the extinguishing
agent throughout the ductwork.
Ducts - 50" Maximum Perimeter
Nozzle: N-11 LIP (1 Flow Point)
Coverage: Unlimited length with:
50" Maximum Perimeter with a longest
side of 16-3/4" for rectangular ducts and
12-1/2" for square ducts
or
50" Maximum Circumference (maximum
diameter of 16") for round ducts.
Placement: Centered in duct opening, from 1-6' into
the duct opening.
Aim point: Center of duct
The Model N-1 LP nozzle is aone flow point nozzle that
can , Protect a square or rectangular duct with a
maxImum 50" perimeter and a maximum one side
length of 12-1/2" (square) and 16-3/4" (rectangular)
Nozzle: N-2W (2 Flow Point)
Coverage: Unlimited length with:
150" Maximum Perimeter with a longest
side of 50" for rectangular ducts and
37-1/2" for square ducts
or
150" Maximum Circumference (maximum
diameter of 47-1/2") for round ducts.
Placement: Centered in duct opening, from 0-6" into
the duct opening.
Aim point: Center of duct.
The Model N-2W nozzle is a two (2) flow point nozzle
that can protect a square or rectangular duct with -a
maximum 150" perimeter and a maximum one side
length , of 37-1/2' (square) and 50" (rectangular)
respectively. It can also protect a round duct With a
maximum circumference of 150" (47-1/2" maximum
diameter). See Figure 3-1 and 3-2.
AIM: CENTER OF
FOR DUCTS (VERTICAL OR HORIZONTAL)
WITHOUT A TRANSITION
AIM: CENTER OF
ENTRANCE TO
HORIZONTAL DU
NOZZLE PLACEMENT
- 1'. 6' (Per. 0 to 50', N-1 LP)
0' -6' (Per.Oto 150', N.2W)
INTO THE DUCT TRANSITION
HOOD
FOR DUCTS WITH.A.•VERTICAL TO HORIZONTAL
TRANSITION
Figure 3-1.
Proper Duct Nozzle Placement
NOZZLE PLACEMENT:
6' (Per. 0 to 50", N1LP)
0'- 6' (Per. 0 to 150', N-2W
INTO THE DUCT
duct, measure the perimeter of the final exhaust duct.
The nozzle will be located as per standard duct
coverage at the duct/plenum interface and aimed at the
center of the duct opening. See Figure 3.4.
PERIMETER,,.,.I, I
MEASUREMENT
Figre 3.4.
Proper Measurement And Nozzle
Placement For Smaller To Larger Transition Ducts.
Upper Lower Plenums
When protecting exhaust hoods with multiple risers
(upper I lower plenums), each riser must be protected
as an individual duct. See Figure 3.5.
H Iouci
t
- . . PLENUM
.Fiue3.5.
Upper! Lower Plenum ProtectiOn
Electrostatic Precipitators
Ventilation systems that utilize electrostatic precipitators
require duct protection above and below the precipitator.
Standard duct nozzles are used for this application.
See Figure 3.6.
Figure 3.6.
Electrostatic Precipitator Protection.
Plenum Protection
Nozzle: N-IHP(1 Flow Point)
Coverage; Length: 12 feet max.
Width: 4 feet max.
Placement: See Figure 3.7.
Aim point: See Figure 3.7.
Chapter 3 - System Design
Page 3-2
Revision 2
lay
_.--..,------------, FOR CIRCUMFERENCES 010 50':
/ \ MAXIMUM DIAMETER SHALL NOT
EXCEED 16%
FOR CIRCUMFERENCES 010 1S0
NOZZLE TIP USING THE N-2W: MAXIMUM DIAMETER
- -
CENTERED, SHALL NOT EXCEED 47-1/2.
AIMED INTO DUCT
NOZZLE TIP CENTERED, NOZZLE TIP CENTERED,
'AIMED INTO DUCT— I AIMED INTO DUCT
112 W
`! w -
LL :L
FOR PERIMETERS 010 50': LONGEST SIDE
SHALL NOT EXCEED 16-3/4;
FOR PERIMETERS 0 10 150W USING THE N-2W:
LONGEST SIDE SHALL HOT EXCEED soY,
VIEW OF DUCT CROSS-SECTIONAL AREA
Figure 3-2.
Proper Duct Nozzle Placement
Ducts LarQer than 150" Perimeter
For ducts with perimeters larger than 150", more than
one Model N-2W nozzle must be used. When using
multiple Model N-2W nozzles to protect a single duct,
the cross sectional area of the duct must be divided into
equal symmetrical areas. Each nozzle must then be
installed in the center of the area it is protecting and
aimed directly into the duct opening. No cross sectional
area can excfeed the single nozzle coverage.
Transition Ducts
Protection of any non-standard duct should be
discussed and agreed upon with the local authority
having jurisdiction before proceeding with any system
installation. Typically, transition ducts are protected in.
the following manner.
Larger to Smaller Duct Transitions
To determine the proper coverage for ducts that have a
larger opening into the plenum than the final exhaust
.: duct, measure the perimeter of the duct half way
between the largest and smallest cross sectional areas:
The nozzle will be located as per standard duct
coverage at the duct/plenum interface, rather than at the
point of measurement, and pointed into the duct, aimed
at the center of the final duct opening. See Figure 3.3.
PERIMETER
AY INTO
TRANSITION
Figure 3.3.
Proper Measurement And Nozzle
Placement For Larger To Smaller Transition Ducts.
"Smaller to Larger Duct Transitions
To determine the proper coverage for ducts that have a
smaller opening into the plenum than the final exhaust
Chapter 3 - System Design
Page 3 - 3
Revision 2
The Model N-IHP nozzle is a one (1) flow point nozzle
that can protect a plenum (either single bank or V-bank)
of 12 feet in length and 4 feet in width per nozzle. Larger
plenums must be divided into. 12 foot sections, with
each section protected with a separate nozzle. See
Figure 3-7.
Plenum: V-bank Nozzle Placement
The nozzle must be located at the center of the V-bank
width and down 1/3 of the vertical height, within 6 inches
of the end of the plenum or plenum module and aimed
down the length of the plenum. See Figure 3-7,
Plenum: Single Filter Bank Nozzle Placement
The nozzle must be located at a point that is 2" from the
back edge of the filter and 1/3 of the vertical height of
the filter, within 6 inches off the end of the plenum or
plenum module and aimed down the length of the
plenum. See Figure 3-7.
W 1/3H
7 V BANK
7 _74..- ,MA. -< ita______
110 SINGLE BANK
Figure 3-7.
Model N-1 HP
Plenum Nozzle Placement and Aiming
Note: These examples are typical and do not represent
every acceptable nozzle configuration, only a
representative sample of them.
Designer Note
For plenums that exceed 12 feet in length and
therefore require multiple nozzles, it is
recommended that the total length be divided into
equally sized protection zones and protected
accordingly. So a 16 foot long plenum should be
divided into two 8 foot zones, with a nozzle
protecting each, as opposed to a 12 foot zone and
a 4 foot zone.
APPLIANCE PROTECTION
Each different appliance must be protected in a specific
manner with regard to nozzle selection, placement, and
aiming: No deviations from these parameters are
allowed and failure to comply completely with these
requirements will void the UL Listing of the system and
may render the system ineffective.
In order to properly understand this section, several key
terms need to be defined in advance.
DESIGN TERMINOLOGY
Nozzle Height: The distance from the tip of the
discharge nozzle to the top surface of the appliance
(except for woks, in which case the bottom of the wok is
used).
Hazard Area: All nozzle coverages include the
maximum size of the hazard area they can protect.
Hazard area is NOT the overall size of the appliance
being protected, but rather the actual size of the
portion of the appliance used for cooking.
pnces Requiring Multiple Nozzles
Some appliances may need to be protected by multiple
nozzles because of their size. If the size of an
appliance is larger than the approved coverage for that
appliance, multiple nozzles must be used. This is
accomplished by dividing the hazard area into individual
zones that comply with the parameters of the listing for
that appliance. In this case, each zone will be protected
as an individual appliance with respect to nozzle
placement and aiming. -
RANGE PROTECTION
Two (2) Burner Ranqe — LOW Proximit
Nozzle: N-11-P 0 Flow Point)
Coverage: 12" x 24" Maximum (measured burner
edge to burner edge)
Nozzle Ht: 16" —30"
Placement: 3" from either edge of appliance, on
appliance's long centerline.
Aim p9iflt: 6" from opposite edge of appliance, on
appliance's long centerline.
The Model N-1 LP nozzle is a one (1) flow point nozzle
that can protect a range cooking area of 12" wide by 24"
deep, The nozzle must be located 16" to 30" above the
cooking surface and positioned on the appliance's long
centerline within 3" of either the front or back edge of
the appliance. The nozzle must be aimed at the
appliance's long centerline 6" off the opposite edge of
the appliance. See Figure 3-8.
Chapter 3 - System Design
Page 3 -4
Revision 2
AXIMUM HEIGHT SOW,
NOZZLE PLACEMENT AREA (FRONT OR RACK OF APPLIANCE)
MINIMUM HE
RANGE CENTER
AIM POWTV FROM
OPPOSITE EDGE
21 Four Burner Ranae - LOW Proximit
Nozzle: N-2W (2 Flow Point)
Coverage: 2411 x 24" Maximum (measured burner
edge to burner edge)
Nozzle Ht: 16"— 30"
HAZARD
LENGTH: 12"
2 FROM FRONT OR
RACK EDGE
ID WIDTIF
24'
Placement: Center of appliance.
Aim point: Center of appliance
Figure 3-8.
Low Proximity, 12" x 24" Range
Model N-1 LP Nozzle
Four (4) Burner Ranges:
1) Four Burner Range -HIGH Proximity
Nozzle: N-1 LP (1 Flow Point)
Coverage: 24" x 24" Maximum (measured burnec
edge to burner edge)
Nozzle Ht. 30" - 40"
Placement: Within 3" of the center of appliance.
Aim point: Center of appliance.
The Model N-1LP nozzle is a one (1) flow point nozzle
that can protect a range cooking area of 24" wide by 24"
deep. The nozzle must be located 30" to 40" above the
cooking surface and within 3" of the center of the
appliance. The nozzle must be aimed at the.center of
the cooking area. See Figure 3-9.
MA)JMI.fM HEIGHT 40
I FROM
ozzLE:1.AcEMEN1 CENTER
I AREA fli .
-R#HEE QNTER
BURNER TOBURHER - BURNER Td' LENGTH 24 . BURNER WIDTH
24
Figure 3-9.
High Proximity, 24" x 24" Range
Model N-i LP Nozzle
The Model N-2W nozzle is a two (2) flow point nozzle
that can protect a range cooking area of 24" wide by 24"
deep. The nozzle must be located 16" to 30" above the
cooking surface and be centered over the appliance.
The nozzle must be aimed at the center of the cooking
area. See Figure 3-10.
MAXIMUM HEIGHT 3N
NO; PLACEMENT -t
AREA
RANGE CENTER
OBRNE
I I WIDTH: 24
Figure 3-10.
Low Proximity, 24" x 24" Range
Model N-2W Nozzle
Six (6) Burner Range
Nozzle: N-2LP (2 Flow Point)
Coverage: 36" x 24" Maximum (measured burner
edge to burner edge)
Nozzle Ht: 35','- 43"
Placement: Centered over appliance.
Aim point: Center of appliance.
The Model N-2LP nozzle is a two (2) flow point nozzle
that can protect a range cooking area of 36" wide by 24"
deep. The nozzle must be"',föated 35" to 43" above the
cooking surface and 'te'over the appliance. The
nozzle must be aimed at the center of the cooking area.
See Figure 3-11.
1,
figure 3-11.
36" x 24" Range
Model N-21LP Nozzle
Range I Griddle Combination Appliance
Nozzle: N.ILP (1 Flow Point)
Coverage: 30" x 24" Maximum (measured burner
edge to burner edge)
Nozzle Ht: .30" —40"
Placement: Within 3" of the center of appliance
Aim point: Center of appliance.
The Model N-1 LP nozzle is a one (1) flow point nozzle
that can protect a combination range I griddle with a
cooking area of 30" wide by 24" deep. The nozzle must
be located 30" to 40" above the cooking surface and
within 3" of the center of the appliance. The nozzle
must be aimed at the center of the cooking area. See
Figure 3-11,
PROM
NOZZLEPLRCEMEIPIT CENTER
AREA
AIHIMUM HEIGHT IO .
ROPIQESRIODLE CENTER
RUNNER WIDTH: I'M
WIDTH: ,,'oox. "K12'c.. BURNER TO
BURNER TO GRIDDLE I -.
RURNRO./OPIDPI
L ENGTH, ,' ç N,,
Figure 3-12.
30" x 24" Combination Range! Griddle
Model N-i LP Nozzle
Chapter 3 - System Design
Page 3 - 5
Revision 2
Protection For ADDOiances With a
shelf
The protection of an appliance (such as a range) that
has a shelf that can interfere with a nozzle discharge
can be accomplished by either using the low proximity
coverage for that appliance or placing the nozzle in a
position within its stated limitation where the discharge
pattern will not be affected. Sample coverages for a
range with a back-shelf are shown in Figures 3-13 and
3-14.
SHELF WIDTH: MOTTO
EXCEED THE CENTERLINE 01'
THE RANGE UNLESS NOZZLE
IS LOCATED UNDER SHELF k"..
OR OBSTRUCTI,?)I_
MAX. HEIGHT, TIP LOCATED
NOZZLE
PLACEMENT,
BELOW OR LEVEL WITH THE CENTER OF RANGE
BOTTOM OF THE OBSTRUCTION
BUT NOT TO EXCEEDO'
MIN. HEIGHT 16'
NOZZLE TIP MUST RE AIM: CENTER OF BELOW SHELF OR
RANGE OBSTRUCTION.
BURNER
HER TO BURNER BURNER WIDTH
LENGTH: 24" I ._- 24"
Figure 3-13.
24" x 24" Range with Back-shelf
Model N-2W Nozzle
EM
- IF SHELF IS HIGHER,
THEN NOZZLE HEIGHT
MAY INCREASE
MAX. HEIGHT': 24'— . PROPORTIONALLY.
SHELF MAXIMUM MAY BE
EXCEEDED IF NOZZLE
TIP IS PLACED BELOW 0' MIN. SHELF HEIGHT.
MIN. HEIGHT 16'-
12
AIM: 6' FROM
RANGE CENTER I OPPOSITE EDGE, ,
I ON LONG CENTER
LINE
6'
NOZZLE LOCATED
MAX. . . 3" FROMFHONT
HAZARD EDGE
LENGT14r12 . . 3 . MAX. HAZARD
WIDTH; 24"
Figure 3-14.
12" x 24" Range with Back-shelf
Model N-i LP Nozzle
Chapter 3 - System Design
Page 3-6
Revision 2
Deep Fat Fryer Protection
Nozzle: N-2HP (2 Flow Point)
Coverage: 20.25" x 24"
Nozzle Ht: 24" - 45"
Placement: Anywhere over the surface of the
appliance cooking area.
Aim point: Center of appliance.
The Model N-2HP nozzle is a two (2) flow point nozzle
that can protect a deep fat fryer with a maximum
cooking area of 20.25" wide by 24" deep. The nozzle
must be located 24" to 45" above the cooking surface
and located anywhere over the appliance cooking area.
The nozzle must be aimed at the center of the cooking
area. See Figure 3-15.
NOZZLE TO BE LOCATED
WITHIN THE PERIMETER
OF THE HAZARD
MAXIMUM HEIGHT 45
NOZZLE
PLACEMENT
- AREA
Tilting Brazing Skillet Protection
Nozzle: N-2HP (2 Flow Point)
Coverage: 20.25" x 24" per nozzle
Nozzle Ht: 24" —45"
Placement: Anywhere over the surface of the
appliance cooking area.
Aim Point: Center of the protected zone.
The Model N-2HP nozzle is a two (2) flow point nozzle
that can protect a tilting brazing pan I skillet with a
maximum cooking area of 20.25" wide by 24" deep per
nozzle. The nozzle must be located 24" to 45" above the
cooking surface and located anywhere over the
appliance cooking area. The nozzle must be aimed at
the center of the cooking area. See Figure 3-16.
COVER MUST
NOT INTEFERE MAXIMUM HEIGHT 45
WITH NOZZLE
DISCHARGE // I NOZZLE
PLACEMENT
/ . AREA
MINIMUM HEIGHT Z4
NOZZLE AIMED
CENTER OF
HAZARD AREA
MAXIMUM
WlDTH 24
MAXIMUM
LENGTH-. ZR,ZS
Figure 3-15k
20.25" x 24" Deep Fat Fryer
Model N-2HP Nozzle
Frvers Reauirinct Multiple Nozzles
Fryers that exceed the coverage of a single nozzle can
be protected with multiple.qozzles. The fryer must be
divided into equal sized modules, so that each module.
does not exceed the maximum coverage allowed for a
single nozzle.
CAUTION 1
The maximum size fryer. that can be modularized is
864 square inches.
Figure 3-16.
Tilting Skillet / Brazing Pan
Model N-2HP Nozzle
GRIDDLE PROTECTION
Standard Griddle: 42 x30"
Nozzle: N-1LP(1 Flow Point)
Coverage: 42" x 30" Maximum . I
Nozzle Ht: 24".— 48"
Placement: DireCtly over the edge of the cooking area.
Aim Point: 6" from center of appliance in-line with the
nozzle.
The Model N-i LP nozzle is a one (1) flow point nozzle
that can protect a griddle with a maximum cooking area
of 42" wide by 30" deep. The nozzle must be located
.24" to 48" above the cooking surface and positioned
directly above the edge of the cooking area. The nozzle
must be aimed 6" from the center of the co.okih ..area in-
line with the nozzle. See Figure 3-17.
Chapter 3— System Design
Page 3 - 7
Revision 2
The Model NA LP nozzle is a one (1) flow point nozzle
that can protect a griddle with a maximum cooking area
of 48" wide by 30" deep. The nozzle must be:located
30" to 43" above the cooking surface, on the centerline
of the appliance and 6" off the either short edge. The
nozzle must be aimed 3" from the center of the cooking
area in-line with the nozzle. See Figure 3-18.
Extra Large Griddle 60" x 30"
Nozzle: N-2LP (2 Flow Point)
Coverage: 60" x 30" Maximum
Nozzle Ht: 24" —48"
Placement: Directly over the edge of the cooking area.
Aim Point: 8" from center of appliance in-line with the
nozzle.
The Model N-2LP nozzle is a two (2) flow point nozzle'
that can protect a griddle with a maximum cooking area
of 60" wide by 30" deep. The nozzle must be located
24" to 48" above the cooking surface and positioned
directly above the edge of the cooking area. The nozzle
must be aimed 8" from the center of the cooking area in--
line with the nozzle, Seer Figure 3-19.
NOZZLE TO BE LOCATED ON
THEPERIMETEAOFTHE
MAXIMUM HEIGHT 48" , ' HAZARD
NOZZLE
PLACEMENT
AREA
IINIMUM HEIGHT 2O .
NOZZLE TO BE LOCATED
ON THE PERIMETER OF
T HEHMARO
MAXIMUM HEIGHT 40'
NOZZLE PLACEMENT
AREA
NOUL€AIMED 6 FROM CENT ER OF N.AZFRO NEFF
IT.
-- -
F UN ZZ LE
MAXIMUM
_-_-- MAXIMUM LENGTH 42'
WIDTH: 30"
Figure 3-17.
Standard Griddle: 42" x 30"
Model N-1LP Nozzle
Large Griddle - 48" x 30"
Nozzle: - N-1LP (1 Flow Point)
Coverage: 48" x30' Maximum
Nozzle Ht: O" - 43'
Placement: On the centerline of-the appliance, 6" off
the short edge.
Aim Point: 3" from center of appliance in-line with the
nozzle. -
MAXIMUM HEIGHT 43'
NOZZLE
PLACEMENT
AREA
(js
I Q4
MAXIMUM
LENGTH: 4$' .
WIDTH: 30'
Figure 3-18.
Large Griddle: 48" x 30"
Model N-i LP Nozzle
NOZZLE EDO
FROM
TEA
FMAZA AR
LENGTH
MAXIMUM
WIDTH! 30"
Figure 319.
Extra Large: Griddle: 60" x 30"
Model N-2LP Nozzle
Chapter 3 - System Design
Page 3 - 8
Revision 2
CHIARBROILER PROTECTION
Radiant Charbroiler
Nozzle: N-1HP (1 Flow Point)
Coverage: 36" x 24" Maximum
Nozzle Ht: 30" - 48"
Placement: Anywhere over the surface of the
appliance.
Aim Point: Center of appliance.
The Model N-1 HP nozzle is a one (1) flow point nozzle
that can protect a radiant charbroiler with a cooking area
of 36" wide by 24" deep, The nozzle must be located
30" to 48" above the cooking surface and positioned
anywhere over the cooking area. The nozzle must be
aimed at the center of the cooking area. See Figure 3-
20.
I LO
NOZZLE TO BE
CADflN
THE PERIME1'ER OF
AREA
:
MUM HEIGHT 40" E HAZAD
NOZZLE
>
IIIIT Th >
Figure 3-20.
Radiant Charbroiler
Model N-1 HP Nozzle
Lava Rock Charbroiler Protection•
Nozzle: N-2HP (2 Flow Point)
Coverage: 24" x 24" Maximum
Nozzle Ht: 24" - 40"
Placement: Anywhere over the surface of the
appliance.
Aim Point: Center of appliance.
The Model N-2f1P nozzle is a two (2) flow point nozzle
that can protect a lava rock charbroiler with a cooking
area of 24" wide by 24" deep. The nozzle must be
located 24" to 40" above the cooking surface and
positioned anywhere over the cooking area. The nozzle
must be aimed at the center of the cooking area. See
Figure 3-21.
NOZZLE TO RE LOCATED WITHIN
THE PERIMETER OF THE HAZARD
MAXIMUM HEIGHT 40'
NOZZLE PLACEMENT
AREA
MINIMUM HEIGHT 24'
I MAXIMUM
,
ylorH 24
'
LENGTH; 24'
Figure 3-21.
Lava Rock charbroiler
MódeLN-2HP Nozzle
Uprqht Broiler Protection
Nozzle: N-1 LP (1 Flow Point)
Coverage: 36" x 24" Maximum
Nozzle Ht: Upper corner of broiling chamber
Placement: Positioned in the corner of the front
opening of the appliance.
Aim Point: Center of cooking grate.
The Model N-1 LP nozzle is a one (1) flow point nozzle
that can protect an upright broiler (salamander. broiler),
with a cooking area of 36" wide by 24" deep. The
nozzle must be located in the top front corner of the
broiler and aimed at the center 'of the 'cooking grate.
See Figure 3-22. •
NOZZLE AIM
AT CON TEA
COOKING GAG
A
Figure 3-22.
Upright Broiler 36" x 24"
Model N-i LP Nozzle
Wok Protection
Nozzle: N-1 HP (1 Flow Point)
Coverage: 12" Mm. x30" Max
Nozzle Ht: 30" - 48" (measured from botton
Placement: Anywhere over the surface of the
appliance.
Aim Point: Center of bottom of appliance.
NOZZLE AIMED
CENTER Or 'IIxir MAXIMUM HEIGHT 48
WOK BOTTOM
NOZZLE PLACEMENT
AREA
MINIMUM HEIGHT GO',
Chapter 3 - System Design
Page 3 - 9
Revision 2
The Model NI HP nozzle is a one (1) flow point nozzle
that can protect -a wok with a minimum diameter of 12"
up to maximum diameter of 30". The nozzle must be
located 30" to 48" above the bottom of the wok and
positioned anywhere over the cooking area, The nozzle
must be aimed. at the center of the cooking area. See
Figure 3-23.
ADHances Reauirina Multiple Nozzles-.
(Module Protection)
Appliances that exceed the coverage of a single nozzle
can be protected with multiple nozzles. The appliance
hazard area must be divided into equal sized modules
with each module not exceeding the maximum coverage
allowed for a single nozzle. Each nozzle is then located
and aimed within the module it is protecting, following
the limitations stated for single nozzle coverage. See
Figure 3-24 for an example of module protection.
CAUTION
The maximum size fryer that can be modularized is
864 squar e inches.
LET— IOCATD WIThIN
TIIEPEBIMETEROF
THE MODULE
NOZZLE
MAXIMUM HEICHT 40
PLACEMENT NOZZLE TO BE
AREA LOCATED WITHIN
_____________ THE PERIMETER OF
MINIMUMMEIGATNO' ', THEMODULE
MAXIMUM WOK
DIAMETER 30'
MINIMUM WOK
DlAMETEl: 12'
Figure 3-23.
Wok Protection
Model N-1HP Nozzle
Figure 3-24.
Sample Radiant Charbroiler Module Protection
Chapter 3 - System Design
Page 3-10
Revision 2
- COVERAGE SUMMARY TABLE
APPLICATION COVERAGE NOZZLE COLOR FLOW NOZZLE HT. PLACEMENT PAGE AIMING BAND POINT
DUCT, RECTANGLE UP TO 50" PER.; MAX.
SIDE OF 16-3/4' N-1LP RED I 1-6' INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-I
DUCT, SQUARE UP TO 50" PER,; MAX.
SIDE OF 12-1/2 N-ILP RED 1 1-6" INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-1
DUCT, ROUND UP TO 50" CIRCUM
(16 " DIA.) N-ILP RED I 1-6' INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-1
DUCT, RECTANGLE UP TO ISO" PER.; MAX.
SIDE OF5O ' N-2W WHITE 2 0-6" INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-1
DUCT, SQUARE UP TO. 150' PER.; MAX.
SIDE OF 37-1/2" N.2W WHITE 2 0'-6' INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-I
DUCT, ROUND UP TO 150" CIRCUM
(47-112" DIA.) N.2W WHITE
.
2 04-6' INTO DUCT
OPENING CENTERED IN DUCT CENTER OF DUCT 3-1
PLENUM, SINGLE 12 FT IN LENGTH; 4 FT N.1HP BLUE I
1/3 H FROM TOP;
2'INFROM 0"-6'FROMEND. OPPOSITE END OF 3-2 BANK IN WIDTH FILTER BOTTOM PLENUM
PLENUM, V' BANK 12 FT IN LENGTH; 4 FT N-IHP BLUE 1 1/3 H,FROM TOP,' 0'-6' FROM END OPPOSITE END OF 3-2 IN WIDTH 1/2W , PLENUM
RANGE, TWO
BURNER 12"X24' N-1LP RED 1 16'-30" 3" FROM FRONT OR 6" FROM OPPOSITE 3-3
(Back-sh6I()' BACK EDGE ON C'LINE EDGE ON C'LINE
RANGE, FOUR 24"X24" -' N-1LP RED 1 30"-40 WITHIN a" OFCENTER ,CENTEROF 3-4 BURNER . .APPLIANCE
RANGE, FOUR
BURNER- LOW 24'x24' N2W ' WHITE 2 16'-30' . . CENTEPIOFAPPLIANCE CENTERCJF 3.4 PROXIMITY APPLIANCE
(Back-shell)"
RANGE, SIX
BURNER 36'X24' N-2LP YELLOW 2 . 35'-43' CENTEROFAPPLIANCE CENTER OF 3-4 . APPLIANCE
COMBINATION , 30" X 24" N-ILP RED RANGE/GRIDDLE 1 30" -40" WITHIN 3' OF CENTER '
CENTER OF
APPLIANCE 3-5
DEEP FAT FRYER, 20.25" X 24" N-2HP GREEN ,2 24'- 45' ANYWHERE OVER CENTER OF 3-6 SINGLE VAT . HAZARD AREA APPLIANCE
20.25'X24" N-2HP GREEN' TILTING SKILLET, 2 '24'-45" ANYWHERE OVER CENTEROF 3-6 BRAISING PAN ' HAZARD AREA APPLIANCE
GRIDDLE, 42" X 30' N-1LP RED 1 24" - 48' DIRECTLY OVER EDGE 6'FROM CENTER,
IN-LINE WITH . 3-6 STANDARD . OF HAZARD AREA NOZZLE
6' OUTSIDE OF 3' FROM CENTER,
GRIDDLE, LARGE 48'X 30" N-ILP RED I ' 30'- 43" SHORTER EDGE OF IN-LINE WITH 3-6 HAZARDAREAON
C'LINE NOZZLE
GRIDDLE, EXTRA 60" X 30' N-2LP YELLOW' 2 24"- 48" 'DIRECTLY OVER EDGE IN-LINE WITH 3-6 LARGE , ' . ' OF HAZARD AREA NOZZLE
CHAREROILER, 36'X24" - NlHP , BLUE I -4 , 30'8 ANYWHERE OVER CENTER OF 3-7 RADIANT ' ' HAZARD AREA j. APPLIANCE
CHAREROILER, ' 24X24' N-21'IP GREEN 2 24' .40' , ANYWHERE OVER . CENTER OF 3-7 LAVA ROCK . HAZARD AREA APPLIANCE
CHARBROILER, . UPPER CORNER FRONT CORNER OF CENTEROF UPRIGHT , 36'X 24' N-1 LP RED I OF BROILING OPENING TO BROILER COOKING GRATE 3-8
(SALAMANDER) . ' CHAMBER " . CHAMBER
WOK I2'T030'DIA. N-1HP BLUE ' 1 30'-48' ANYWHERE OVER BOTTOM CENTER 3-8 HAZARD AREA
Coverages can be used when a range with a back-shelf or other type of obstruction, as long as the discharge pattm 'Es not affected.
Cover must not interfere wifti nozzle discharge.
Chapter 3 - System Design
Page 3 - 11
Revision 2
PIPING LI MITATIONS Example: 20 feet of 3/8" pipe is equal to 750 mL. of
pipe volume (20 ft. X 37.5 ML./ft. = 750 mL.).
This section contains detailed piping limitations that are
necessary to design the piping network for The Buckeye
Fire Equipment Kitchen Mister Fire Suppression
System. Because the system is of the pre-engineered
type, maximum and minimum piping parameters have
already been established for each cylinder size. No
variations to these limitations are allowed under the UL
Listing.
The maximum and minimum pipe length for each size
agent cylinder is based on total internal pipe volume,
regardless of the diameter of the pipe used. All piping
parameters are based on total system piping and do not
make a distinction between branches and supply tine
piping.
Note: Pipe and fittings must be furnished by the
installer. Pipe shall be Schedule 40 black, chrome
plated, or stainless steel pipe. Fittings shall be rated
150 lb.
PIPING TERMINOLOGY
Split Piping: The main supply piping from the cylinder
enters the 'bull side" of a Tee and.dir.ects.the supply in
tWo directions. The main supply can ONLY be split
once in any piping system. See Figure 3-25.
Straight Piping: The main supply piping from the
cylinder enters all Tees from the "run side" of the Tee,
with branch lines attached to the "bull side". See Figure
3-25.
SIR 4GUT PIPING SPLIT PIPING
Figure 3-25.
Split and Straight Piping Arrangements
PIPING VOLUME CHART
[• Allowable
L Pipe Sizes
Volume
Per foot
in. pipe ....... 37.5 mL./ft. r 3/8
1/2 In. pipe 59.8 mL./ft.
MAXIMUM PIPING PER CYLINDER SIZE
Cylinder Max. Max. Pipe Max. Pipe
Vol. Between
Size Flow Volume any two (2) Points (mL.) Nozzles. (mL.)
BFR-5 5 1500 1000.
-
BF -10 10 2500 2000
BFR-15 --
15 2800* 2500
BFR-20 - 20 2800k 2500
Total volume of 318" piping allowed on the BFR-15
or BFR-20 is 2500 mL.
Minimum Piping Requirements
Note: Minimum piping requirements ONLY apply when
protecting a wok, deep tat fryer, or range.
Minimum number of elbows before the closest
.nozzle protecting a fryer, range,. or. wok §hall be five
The minimum piping volume before the closest
nozzle protecting a fryer, range, or wok shall not be
less then 360 mL.
The total system pipe volume shalt not be less then
660 mL. for all cylinder sizes.
A system shall have a minimum of three (3) flow
points.
General Piping Requirements
All piping must be either 3/8" or 1/2".
Split piping and straight line piping are allowed on
all systems as tong as the total: system piping
parameters are not exceeded.
When the discharge piping issplit, no nozzles can
be installed before th split
The maximum number of elbows allowed per
system are:
BFR-5: 20 elbows maximum
BFR-10115120: 25 elbows maximum
The maximum number.ot elbows between any two
nozzles is five (5).
SUPPLY CAN ALSO BE ENTER P4G SPLIT ONCE 'eUt.t. SLOE'
OF TEE
Chapter 3— System Design
Page 3 - 12
Revision 2
The maximum vertical rise of the supply line is 10
feet, this is either the maximum elevation difference
between tank outlet and the highest nozzle or tank
outlet and the highest or lowest point in the piping
system.
The maximum vertical rise of any nozzle above the
supply line is 2 feet.
No traps are allowed in the piping system
Note: A "trap" is defined as a section of pipe that
would allow liquid to accumulate, such as, either a
low point in the piping layout or piping that extends
past the last discharge point.
9. When different sized piping is used in the same
system, the largest diameter pipe must be closest
to the cylinder and sizes are to decrease as they
reach the nozzle. So piping always runs from
larger to smaller diameter.
10. Elbow(s) or swivel adaptors used at the nozzle for
aiming DO NOT count toward the total elbows
allowed per system or the number of elbows
between two (2) nozzles.
11. Fof the BFR-15 and BFFt-20 only, the maximum
volume of piping betweenthe nozzle nearest the
supply line from one branch to the closest nozzle
from the next branch shall not exceed 500 mL.
Chapter 3 - System Design
Page 3 - 13
Revision 2
Detectors (fusible links) are required to be placed in the
air stream of each appliance (one detector per
appliance) and in the opening of the exhaust duct(s) of
protected ventilation hoods. Detectors shall be located
in the plenum area of the ventilation hood behind the
filters, which provide protection for the detection system.
Exhaust Duct Detector Placement
EaQh exhaust duct must have at least one (1) detector
installed. The detector is to be centered in the duct
entrance and no more than 12' into ductwork.
Cookina ADDiance Detector Placement
Each cooking appliance with a continuous cooking
surface area of less than 48" x 48" must be protected by
one (1) detector. The detector is to be located over the
surface of the appliance and in its air stream when the
ventilation system is turned on. Cooking appliances
with continuous cooking surfaces larger than 48' x 48"
must be, protected by multiple detectors, using one
detector for every 48" x 48" of continuous cooking area.
Exception: It a cooking appliance or appliances are
located under. a . duct opening whee a detector has
been mounted, it inbt necessary to utilize an additional
detector as long the duct detector is not more than 12"
into the duct opening. See Figure 3-26.
APPLIANCE APPLIANCE APPLIANCE APPLIANCE
COVERED COVERED- COVERED COVERED
BY BY BY BY
DETECTOR DETECTOR DETECTOR DETECTOR
A B B C
Figure 3-26.
Proper Detector Placement
Appliances and Duct