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atitiv ntiui i MAIN
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1
2H =36 TO 48" 2H -36TO 48' 2 H= 24 TO 48" '
PCL3OO
- WET
0 0 0 I 4 U 0 PULL
. I ® AT
4.5'
MECHANICAL GAS
SHUTDOWN
CHAR 72 "X24" FRIDGE 18X18" FRYER
INSTALL 1 PYRO CHEM PCL300 WET FIRE SYSTEM PER NFPAI7A UNDER UL 300 ALL PARTS LISTED
PCL -300 = 10 FLOW POINTS 9 USED IN THIS SYSTEM MECHANICAL CONTROL HEAD TO 3 - 4507.
LINKHOUSE PULL STATION AT 4.5' (ADA) MECHANICAL GAS SHUTDOWN
MAIN LINE 3/8"
a
,
Chapter 3 – System Design
Page 3 -1
CHAPTER III
SYSTEM DESIGN
This section will cover the proper design of the Pyro -Chem 1101
Kitchen Knight II Restaurant Fire Suppression System. It is
divided into three (3) sections:
• Nozzle Coverage and Placement
• Piping Limitations
• Detector Requirements
11411011 o -s IN.
INTO DUCT
Each of these sections must be completed before attempting
any installation. zo NOZZLE
NOZZLE COVERAGE AND I
PLACEMENT {
This section will provide guidelines for determining nozzle — — — _ _ ` irz w w
type, positioning, and quantity for duct, plenum, and appli- t
ance protection.
006172PC
A. Duct Protection ~ 12 L
It is not required that the fan be shut down or the exhaust = L
duct be dampered for the system to operate properly. Each
nozzle is approved to protect exhaust ducts of unlimited Figure 3 -1.
length. Transition Ducts – The protection of non - standard ducts
Duct protection requires that a nozzle by positioned to dis- should be reviewed by the authority having jurisdiction.
charge up, into the duct. The nozzle is a Model 2D, Part No. Pyro -Chem Kitchen Knight II recommends that transition
551038. ducts be protected as follows:
The Model 2D duct nozzle is a two (2) flow nozzle. A single
2D nozzle is capable of protecting square or rectangular a. Transition ducts – larger to smaller
duct with a maximum of 100 in. perimeter, with the longest In cases where the duct/plenum interface opening is
side being a maximum of 34 in. It can also protect a round larger than the final exhaust duct, measure the perime-
duct with a maximum diameter of 31 7/8 in. ter /diameter of the duct halfway between the largest
Two (2) Model 2D duct nozzles can protect a square or rec and smallest section (or the average perimeter /diame
ter). The nozzle is to be located within 0 -6 in. of the
tangular duct with a maximum of 150 in. perimeter, with the duct/plenum interface (not at the point where the mea-
longest side being a maximum of 51 in. They can also pro-
surement was taken), centered under the final exhaust
tect a round duct with a maximum diameter of 47 1/2 in. duct opening. See Figure 3-1a.
When two (2) 2D duct nozzles are used to protect a single
duct, the cross sectional area of the duct must be divided
into two equal symmetrical areas. The nozzle must then be
installed on the centerline of the area it protects and aimed
directly into the duct opening.
The nozzle(s) must be installed on the centerline of the duct,
with the tip located 0 to 6 in. into the opening, and aimed
directly into the duct opening. See Figure 3 -1.
PERIMETER —∎ — — - -
MEASUREMENT
1/2 WAY
INTO
TRANSITION
006173PC
C
Figure 3 -1a.
ULEX 3470
PN551274 October 1, 2001
Chapter 3 — System Design
Page 3 -2 -
b. Transition ducts — smaller to larger B. Plenum Protection
In cases where the duct/plenum interface opening is The Model 1H nozzle, Part No. 551029, is a one (1) flow
smaller than the final exhaust duct, measure the nozzle used for plenum protection. A single 1H nozzle can
perimeter /diameter of the final exhaust duct. The noz- protect a plenum (with single or V -bank filters) 10 ft. long by
zle(s) is to be located within 0 -6 in. of the duct/plenum 4 ft. wide. Dividing the length into sections equal to or less
interface, centered in the opening. See Figure 3-1b. than 10 ft. in length and positioning a nozzle at the start of
each section can be done to protect longer plenums.
PERIMETER —► On V -bank plenums, the nozzle(s) must be located at the cen-
MEASUREMENT ter of the V -bank width, 1/3 of the vertical height of the filters.
\ / On single filter bank plenums, the nozzle must be located 2
in. from the back edge of the filter, 1/3 down from the vertical
height. For either application, the nozzle must be located with -
in 6 in. of the end of the plenum (or module) and aimed direct-
ly down the length of the plenum. See Figure 3 -2.
-) + 006174PC
C
Figure 3-lb
c. Multiple risers 10' MAX.
In cases of multiple rises, each riser is protected as an
individual duct. See Figure 3 -1c. icy MAX.
+ 1 DUCT ,...J 0" TO 6'
006 naPC
r T 1 r 7I ` ...-- DUCT
— W
4111--
006175PC
PLENUM `
Figure 3 -1c
1/3 H
Electrostatic Precipitator — Ducts utilizing electrostatic pre- H
cipitators must be protected above and below the unit.
Standard duct nozzles are used in this application. See
Figure 3 -1d.
V -BANK
2D NOZZLE
Am 1/3 H
+
_ --- PRECIPITATOR l
+
H —1111.- I�
21
` 006117DPC
PLENUM SINGLE BANK
20 NOZZLE
Figure 3 -2
006178PC
Figure 3 -1d
I ULEX 3470
i October 1, 2001 PN551274
r o
Chapter 3 — System Design
• Page 3 -3
C. Appliance Protection la. Fryers without Drip Board (19 in. x 19 1/2 in.
maximum)
Note: When protecting appliances which are larger than si i- Two nozzles are available for fryer protection: High prox-
gle nozzle coverage, multiple nozzles can be used. imity and low proximity.
Larger appliances can be divided into several modules, each The Model 2H nozzle, Part No. 551028, is used for high
equal to or smaller than single nozzle coverage. Exception: proximity fryer protection. This nozzle is a two (2) flow
Fryers must not exceed a maximum of 864 sq. in. nozzle. The nozzle must be located anywhere within
P the perimeter of the hazard area, 24 in to 48 in above
For PROTECTION" fryers, refer to "FRYER — MULTIPLE NOZ the cooking surface of the appliance and aimed at the
ZLE PROTECTI center of the cooking area. See Figure 3 -3a.
The Model 2L nozzle is used for low proximity fryer protec-
Design Chart tion. This nozzle is a two (2) flow nozzle. The nozzle must
Maximum Cooking be located anywhere on the perimeter of the hazard
Appliance Type Hazard Area per Nozzle area, 13 in. to 24 in. above the cooking surface of the
appliance and aimed at the center of the cooking area.
• Fryer 19 in. x 19 1/2 in. See Figure 3 -3a.
Without Drip Board maximum
2H / HIGH
1 PROXIMITY
Fryer 18 in. x 27 3/4 in. maximum / NOZZLE
[
` With Drip Board 19 in. x 25 3/8 in. maximum 1
t LOCATED
/ t 1 ANYWHERE
WITHIN THE
Two Burner Range 12 in. x 28 in. maximum / 2H, 2L 1, i PERIMETER
/ / � � � f— Low
Four Burner Range 28 in. x 28 in. maximum PROXIMITY
Small Wok 2 4 in. diameter x l / `` 0 i Lo LOCATED
6 in. deep maximum / 2L I ANYWHERE ON THE
• // / 24" dill i r,�l p PERIMETER
Large Wok 30 in. diameter x // , ' 13"
8 in. deep maximum / l % ,
F 70G229PC
Small Griddle Maximum area of 1080 sq. FRYERS WITHOUT
in. with the longest side to E DGE OF DRIPBOARDS
b e a maximum of 36 in. O HAZARD
AREA
of 1440
Maximum area o sq. HAZARD
Large Griddle AREA 006178PC -
in. with the longes side to
be a maximum of 48 in. Figure 3 -3a
Gas Radiant Char - Broiler Maximum area of 624 sq. in. lb. Fryers with Drip Board
with the longest side to be a
maximum of 26 in The maximum single nozzle protection dimensions
depend on the dimensions of the fry pot only.
Gas Radiant Char Broiler Maximum area of 864 sq. in. fry P
with the longest side to be a For f pots with maximum dimensions of 18 in. on the
maximum of 36 in. longest side and 324 sq. in. max. area, use overall
dimensions of 27 3/4 in. on the longest side and 500 sq.
Lava Rock Char - Broiler Maximum area of 624 sq. in. in. max. area.
with the longest side to be a
maximum of 26 in. For fry pots with maximum dimensions exceeding 18 in.
x 324 sq. in., but no greater than 19 1/2 in. on the
Natural Charcoal Broiler Maximum area of 480 sq. in. longest side and 371 sq. in. max area, use overall
with the longest side to be a dimensions of 25 3/8 in. on the longest side and 495 sq.
maximum of 24 in. in. area.
Mesquite Char - Broiler Maximum area of 480 sq. in. Two nozzles are available for fryer protection: High prox-
with the longest side to be a imity and low proximity.
maximum of 24 in.
• USalamander Broiler 36 in. wide x 28 in. deep
maximum
&oiler 27 in. wide x 38 in. deep
maximum
ULEX 3470
PN551274 October 1, 2001
J
Chapter 3 — System Design
Page 3 -4
The Model 2H nozzle, Part No. 551028, is used for high
proximity fryer protection. This nozzle is a two ( ?) flow
nozzle. The nozzle must be located anywhere within :,,,,,.,„,„,„,,,,,,,-; 1 H
the perimeter of the hazard area, 24 in. to 48 in. above I. so
the cooking surface of the appliance and aimed at the
center of the cooking area. See Figure 3 -3b. ; 1H my
The Model 2L nozzle is used for low proximity fryer pro-
tection. This nozzle is a two (2) flow nozzle. The nozzle I
must be located anywhere on the perimeter of the haz-
ard area, 13 in. to 24 in. above the cooking surface of ,
the appliance and aimed at the center of the cooking 46
area. See Figure 3 -3b.
2H HIGH
1 PROXIMITY
/ NOZZLE
/ LOCATED
/ I ANYWHERE
/ I i WITHIN THE HIGH
/ 2H, 2L PERIMETER PROXIMITY
.4 -
/ / PC.,. , �+— LOW
/ 48 �, PROXIMITY
/ / 1 I NOZZLE
/ I I LOCATED Figure 3 -4a
/ / 2L I ANYWHERE
U /�/1V ON THE The Model 1L nozzle, Part No. 551066, is used for low prox-
PERIMETER
/ 13 °� i mity two burner range protection. This nozzle is a one (1)
r flow nozzle. The range can be equipped either with or with -
0 out a backshelf. Either type requires the same nozzle
FRYERS WITH requirements. The nozzle must be located 22 in. from the
• EDGE OF DIPBOARDS
OF HAZARD end of the hazard area centered from left to right. It must be
HAZARD AREA 13 in. to 24 in. above cooking surface, and aimed at a point
AREA 006178PC one half the distance of whatever the height dimension of
the nozzle is. When determining nozzle and aim point loca-
Figure 3-3b tions, both measurements are to be taken from the same
end of the hazard area. Example: The nozzle is mounted 20
2. Two Burner Range (12 in. x 28 in. maximum) in. above the cooking surface. The aim point from the edge
Two nozzles are available for two burner range protec- of the hazard would then be 10 in. which is one half the
tion: High proximity and low proximity. nozzle mounting height dimension. See Figure 3 -4b. Note: If
The Model 1H nozzle, Part No. 551029, is used for high the range contains a backshelf, it must be a minimum of
proximity two burner range protection. This nozzle is a 23 1/2 in. above the surface of the appliance and cannot
one (1) flow nozzle. When using high proximity pro- extend over the hazard area more than 11 in.
tection, the range cannot be under a backshelf. This EDGE OF
nozzle must be located on both the front/back centerline HAZARD AREA
and the side /side centerline of the appliance, 40 in. to 50 i
in. above the cooking surface, and aimed directly down. — 22"
See Figure 3 -4a. 1 \ I / 1L
X —
22" /I\
1— \ I / ,;,- i 24(H)
" 1 f
■ 1n \
(H)
C 1/2 (H)'-1 HAZARD 8061 ai Pc
SURFACE
Figure 3 -4b
ULEX 3470
October 1, 2001 PN551274
Chapter 3 — System Design
Page 3 -7
9. Gas Radiant Char - Broiler (864 sq. in. x 36 in. longest The 2L nozzle, Part No. 551027, is used for low proximi-
side maximum) ty lava rock char - broiler protection. This nozzle is a two
Two nozzles are available for gas radiant char - broiler (2) flow nozzle. The nozzle must be located anywhere
protection. High proximity and low proximity. on the perimeter of the hazard surface, 15 in. to 24 in.
above the cooking surface of the appliance and aimed at
The 2H nozzle, Part No. 551028, is used for high prox- the center of the broiler surface. See Figure 3 -12.
imity gas radiant char - broiler protection. This nozzle is a 2L NOZZLE LOCATED ANYWHERE WITHIN THE PERIMETER
two (2) flow nozzle. The nozzle must be located above 2L FOR HIGH PROXIMITY PROTECTION
any corner of the hazard surface, 36 in. to 48 in. above 2L NOZZLE LOCATED ANYWHERE ON THE PERIMETER
FOR LOW
the cooking surface of the appliance and aimed at the 2L , PROXIMITY
center of the broiler surface. See Figure 3 -11a. 1 PROTECTION
EDGE OF 35" 2L \\\
.- HAZARD AREA 24 ' ��
2H NOZZLE (ANY /�/ . ‘•
—r CORNER) l - 15• `�\�\
J
2H
. i
LAVA ROCK 006187PC
er \ \\ J * - �t CHAR - BROILER EDGE OF
• 1 I HAZARD AREA
36"
� �� Figure 3 -12
I
II 1 11. Natural Charcoal Char - Broiler (480 sq. in. x 24 in.
q HIGH PROXIMITY GAS c,,,,,„„
RADIANT BROILER longest side maximum)
Figure 3-11a Two nozzles are available for natural charcoal char- broil-
er protection. High proximity and low proximity. The max -
The 2L nozzle, Part No. 551027, is used for low proximity imum depth of fuel (charcoal) must not exceed 6 in.
gas radiant char broiler protection. This nozzle is a two (2) The 1H nozzle, Part No. 551029, is used for high prox-
flow nozzle. The nozzle must be located anyw on the imity natural charcoal char broiler protection. This nozzle
. ., perimeter of the hazard surface, 13 in. to 3 6 in. above the is a one (1) flow nozzle. The nozzle must be located
cooking surface of the appliance and aimed at the center of anywhere within the perimeter of the hazard area, 24
k the broiler surface. See Figure 3-11b. in. to 35 in. above the cooking surface of the appliance
NOZZLE LOCATED ANYWHERE ALONG and aimed at the center of the broiler surface. See
PERIMETER
:'>, 2L OF HAZARD Figure 3 -13.
r \ \ AREA The 1L nozzle, Part No. 551026, is used for low proximi-
M.
2L ‘ I ty natural charcoal char - broiler protection. This nozzle is
ae
r--‘ \ `\ — i —. a one (1) flow nozzle. The nozzle must be located any -
13' `\ where on the perimeter of the hazard surface, 15 in. to
. . ` 24 in. above the cooking surface of the appliance and
\
r 1 L aimed at the center of the broiler surface. See Figure
c LOW PROXIMITY GAS \ 006186PC 3 -13.
RADIANT BROILER EDGE OF 1H NOZZLE LOCATED ANYWHERE WITHIN THE PERIME-
HAZARD AREA TER FOR HIGH PROXIMITY PROTECTION
r. . 1H 1. IL NOZZLE LOCATED ANYWHERE ON THE PERIMETER
Figure 3-11b 1L 1H `\ FOR LOW
PROXIMITY
,4 �
• 10. Lava Rock Char - Broiler (624 sq. in. x 26 in. longest 1 ‘ ■ PROTECTION
\
side maximum) 35• I 1L ‘\\ I
fl, One nozzle is available for lava rock char - broiler protec- 24 . � o I
l ion. The 2L nozzle, Part No. 551027, is used for both l t 5" `
high proximity and low proximity. 1 �+�
.. The 2L nozzle, Part No. 551027, is used for high proxim- FUEL DEPTH MUST NATURAL CHARCOAL \ p08187PC
NOT EXCEED 6" CHAR - BROILER EDGE OF
k y lava rock char - broiler protection. This nozzle is a two HAZARD AREA
(2) now nozzle. The nozzle must be located anywhere Figure 3 -13
tthIn the perimeter of the hazard area, 24 in. to 35 in.
.1 eve the cooking surface of the appliance and aimed at
the meter of the broiler surface. See Figure 3 -12.
ULEX 3470
PN551274 October 1, 2001
Y