HomeMy WebLinkAboutScan00026' 6
KITCHEN KNIGHT It Restaurant Fire Suppression Manual
(Part No. 551274-06)
CYLINDERS & VALVE
The PYRO-CHEM KITCHEN KNIGHT 11 System has available
four different size cylinders: Models PCL-160 (Part No. 553163),
PCL-300 (Part No. 551194), PCL-460 (Part No. 551193), and
PCL-600 (Part No. 551196). Cylinder sizes are expressed in
terms of extinguishing agent capacity (i_e., the PCL-300 uses
3.0 gallons (11.4 L) of extinguishing agent). The cylinder is
manufactured, tested, and meets DOT requirements. Cylinders
come pre --tilled with extinguishing agent and are charged with
dry nitrogen to a pressure of 226 psig Co) 700 lw (15.5 bar @
21 °C). Cylinder and valve assembly dimensions are shown in
Figure 2-1.
Max
A
B
C
D
Flow
Weight
Mounting
Model
in.
in.
in,
in.
Point
lb
Bracket
No.
(mm)
(mm)
(mm)
(mm)
Capacity
(kg)
Used
PCL-160
8.00
17.75
23.50
15.44
5
3a.
MB-15
(2D3)
(451)
(597)
(392)
(15.4)
PCL-300
8.00
25.06
30.81
22.75
10
53
MB-15
(203)
(637)
(783)
(578)
(24.0)
PCL-460
10.Do
25.06
30.81
22.75
15
83
MB-15
(254) 1
(637) 1
(783)
(578)
(37.6)
PCL-600
i0.00
35.81
41.-% 1
33.50
20
108
MB-1
(254)
1
(910) 1
(1056)
(851)
(49.0)
FIGURE 2-1
002841 PC
All cylinders utilize the same Wet Valve Assembly (Part No.
551175). The wet valve assembly is a pressure sealed poppet
type valve designed to provide rapid actuation and discharge of
agent. See Figure 2-2.
Item
Part No.
Description
Item
Part No.
Description
1
Valve Body
8
550386
Shrader Valve
Ass y
2
550705
Conical Spring
3
550707
Piston
9
550714
Valve Cap O-Ring
4
550716
Neck O-Ring
10
550715
Piston CI -Ring
5
1 551236
Pressure Gauge
11
550989
Valve Stem
6
1550028
1 Stem O-Ring
12
551256
Pressure
Regulator
7
550802 1
Wet Valve
Adaptor
13
551261
Seal
14
17851
6 32X3318 Screw
SECTION 2 — COMPONENTS
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 2-1
12 IN.
,/ NPT
FIGURE 2-2
000212PC
WET VALVE REBUILDING EQUIPMENT
Wet Valve Seal Rebuilding Kit
After system discharge, the valve assembly must be rebuilt to
ensure proper future operation. The Wet Valve Seal Rebuilding
Kit (Part No. 550698) should be used. It includes all components
necessary to properly rebuild the valve. See Figure 2-3_
FIGURE 2-3
Item
Part Number
Description
1
550705
Conical Spring
2
550716
Neck O-Ring
3
550028
Stern O-Ring
4
550715
Piston O-Ring
5
550989
Vatve Stem
fi
550714
Valve Cap O-Ring
Pressure Regulator Assembly
The pressure regulator assembly (Part No. 550985) is available
if the complete regulator requires replacement (e.g. possible
thread damage)_
KITCHEN KNIGHT It Restaurant Fire Suppression Manual
(Part No. 551274-06)
MODEL MCH3 — MECHANICAL CONTROL HEAD
The Model MCH3 Mechanical Control Head (Part No. 551200)
is a fully mechanical control head which can be connected to
the PCL-160M00/460/600 cylinder valve. This control head will
support a fusible link detection system, a remote mechanical pull
station (Model RPS-M), and a mechanical or electric gas shut-
off valve. A micro electric switch (Model MSSPDT, MS-DPDT,
MS-3PDT, or MS-4PDT) can be ordered separately and field
installed- It is equipped with a local manual control handle that
allows for mechanical system actuation- Operation of the local
manual control requires removing the pull pin and rotating the
handle clockwise. The Model MCH3 control head can actuate a
maximum of five cylinders with the 16 gram CO2 cartridge. See
Figure 2-7.
a o
MODEL MCH3 CONTROL HEAD
w w4nRm iwmtE,
a a
FIGURE 2-7
9w9wc
MODEL ECH3 — ELECTRIC CONTROL HEAD
The Model ECH3 electric control head is an electrically operated
Control head which can be connected to the PCL-160/300/4601600
cylinder valve- This control head will support an electric thena€
detection system, a remote mechanical pull station (Model
RPS-M), and an electric gas shut-off valve. It will not support
a fusible link detection system. An electric (snap -action) switch
(Model MS-DPDT) is included.
The Model ECH3 control head is available in both 120VAC
(Model ECH3-120 (Part No_ 551202)) and 24VDC (Model
ECH3-24 (Part No. 551201))- It is equipped with a local manual
control handle that allows for mechanical system actuation.
Operation of the local manual control requires removing the pull
pin and rotating the handle clockwise. The Model ECH3 control
head can actuate a maximum of five cylinders with the 16 gram
CO2 cartridge- See Figure 2-8.
Nate. When utilizing electric detection, it is recommended that
the Model ECH3-24 electric control head be used with either
the AUTOPULSE 542R Control Panel (Part No. 433607) or
the AUTOPULSE Z-10 Control Panel (Part No. 430525)- If the
ECH3-120 control head is to be utilized, it must be used with
►Solenoid Monitor, Model SM-120 (Part No- 550302), along with
a UL Listed 1A, 120VAC power supply (by others), in accor-
dance with NFPA 17A, NFPA 96, and the local authority having
jurisdiction.
SECTION 2 -- COMPONENTS
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 2-3
W919Cg CONTROL HEAD
RLLRLnMK9W
TOEW
..�,
PIRA Qm
u.
° Q
FIGURE 2-8
W4789PC
MODEL NMCH3 — MECHANICAL CONTROL HEAD
The Model NMCH3 Mechanical Control Head (Part No. 551203)
is a fully mechanical control head which can be connected to
the PCL-160130014601600 cylinder valve- This control head will
support a fusible link detention system, a remote mechanical pull
station (Model RPS-M), and a mechanical or electric gas shut-
off valve- An electrical (snWaction) switch (Model MS-SPDT,
MS-DPDT, MS-3PDT, or MS-4f DT) can be ordered separately
and field installed. There is no local manual actuation for the
Model NMCH. The Model NMCH3 oontrol-head can actuate a
maximum of five cylinders with the 16 gram CO2 cartridge.
MODEL NMCH3 CONTROL HEAD
o
i
PYM OEM
nwM
WaM. ar 54i+3-2M2 U�
o �
FIGURE 2-9
006"aPc
MODEL EN-MCU3 ENCLOSURE
The Model EN-MCU3 Enclosure (Part No. 551208) is used for
vertical mounting of a single PCL-160, PCL 300 or PCL-460.
The EN-MCU3 also includes a mechanical control unit, eliminat-
ing the need for a Model MCH3 control head. See Figure 2-10,
Note: The PCL-600 cannot be mounted in an EN-MCU3.
® O
o�
2$-125 IN.
(T1.4 cm)
8.1251N.� k,27.0
.i(33.3 Cm) crra)
o-RMm MM
FIGURE 2-10
002WPC
SECTION 2 — COMPONENTS
UL EX3830 ULC EX3830
PAGE 2-4 REV. 06 2014-NOV-10
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
(Part No. 551274-06)
MODEL EN-S ENCLOSURE
The Model EN-S Enclosure (Part No. 550966) is used for vertical
mounting of a single PCL-160, PCL-300 or PCL-460 when it is
used as a secondary agent cylinder in a system. Dimensions
are the same as the Model EN-MCU3 enclosure (see Figure
2-10). The EN-S has no control mechanism, and must be used
in conjunction with a Model EN-MCU3 enclosure or a Model
MCHWECH3 control head_ Note: The PCL-600 cannot be
mounted in an EN-S enclosure.
16 GRAM CO2 CARTRIDGE
The" 16 Gram CO2 Cartridge (Part No. 551059) is required to
pneumatically actuate the tank valve. The cartridge is installed in
the control head on top of the tank valves_ The cartridge shipping
assembly contains six cartridges.
MODEL MB-P2 — CONTROL HEAD MOUNTING BRACKET
The Model MB-P2 Mounting Bracket (Part No. 550853) must
be used to mount the Model MCH3, NMCH3, or F01-13 control
heads if the control head is not mounted directly on a cylinder
valve. See Figure 2-11.
FIGURE 2-11
c
PNEUMATIC ACTUA71NG CYLINDERS
Model PAC-10
The Model PAC-10 (Part No. 550104) is a pneumatic actuating
cylinder that can actuate a maximum of ten agent cylinders
simultaneously. The Model PAC-10 includes a DOT 4BA350
cylinder pressurized with dry nitrogen to 350 psig @ 700 F
(24.1 bar @ 21 'C), a brass valve with pressure gauge, and
a wall mounting bracket. A Model MCH3, NMCH3, or ECH3
control head must be purchased separately and connected to
the PAC-10 to open the valve_ See Figure 2-12_
MODE` NICN3, NiRGtq, OR
CONTROLNERD
(SOLD SEPARATELY)
3/4 IN.
DISCHARGE
PORT
2025 in.
(61.4 cm)
143f1 in.
(36.8 CM) 12.25 in.
in. (10.2 CM)
FIGURE 2-12
oozaa7Pc
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
(Part No. 551274-06)
GENERAL
The KITCHEN KNIGHT Il Restaurant Fire Suppression System
may be used on a number of different types of restaurant
cooking appliances and hood and duct configurations. The
design information listed in this section deals with the limitations
and parameters of this pre-engineered system. Those individ-
uals responsible for the design of the KITCHEN KNIGHT 11
system must be trained and hold a current PYRO-CHEM certifi-
cate in a KITCHEN KNIGHT II training program.
NOZZLE COVERAGE AND PLACEMENT
This section will provide guidelines for determining nozzle
type, positioning, and quantity for duct, plenum, and appliance
protection.
Duct Protection
It is not required that the fan be shut down or the exhaust duct
be dampered for the system to operate properly_
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.
Duct protection requires that a nozzle be positioned to discharge
into the duct. Two nozzles are available for duct protection.
The Model IL Duct Nozzle (Part No_ 551026) is a one flow nozzle.
A single IL nozzle is capable of protecting square or rectangular
ducts with a maximum perimeter of 50 in. (1270 mm) (maximum
side of 16 3/4 in. (425 mm)), with the diagonal being a maximum
of 18 3/4 in. (476 mm)_ It can also protect a round duct with a
maximum diameter of 16 in_ (406 mm).
The Model 2D Duct Nozzle (Part No. 551038) is a two flow
nozzle_ A single 2D nozzle is capable of protecting square
or rectangular ducts with a maximum perimeter of 100 in.
(2540 mm), with the diagonal being a maximum of 37 3/8 in.
(949 mm). It can also protect a round duct with a maximum
diameter of 31 7/8 in. (809 mm)_
When two 2D duct nozzles are used to protect a single duct,
the cross sectional area of the dud 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.
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 3-1
The nozzle(s) must be installed on the centerline of the duct,
with the tip located 0 to 6 in. (0 to 152 mm) into the opening, and
aimed directly into the duct opening. See Figure 3-1
In installations where a UL listed damper assembly is employed,
the duct nozzle, can be installed beyond the 6 in. (152 mm)
maximum, to a point just beyond the damper assembly that will
not interfere with the damper. Exceeding the maximum of 6 in.
(152 mm) in this way will not void the UL listing of the system.
INTO DUCT
IL OR 22D
NOZZLE
I w
l amlrzx
f— i72 L
L
FIGURE 3-1
KITCHEN KNIGHT 11 Restaurant Fire Suppression Manual
(Part No. 551274-06)
NOZZLE COVERAGE AND PLACEMENT (Continued)
Duct Protection (Continued)
Transition Ducts —The protection of non-standard ducts should
be reviewed by the authority having jurisdiction. PYRO-CHEM
KITCHEN KNIGHT II recommends that transition ducts be
protected as follows:
a. Transition ducts — larger to smaller
In cases where the duet/pienum interface opening is larger
than the final exhaust duct, measure the perimeterldiameter
of the duct haifway between the largest and smallest section
(or the average perimeter/diameter). The nozzle is to be
located within 0 to 6 in. (0 to 152 mm) of the ducttpienum
interface (not at the point where the measurement was
taken), centered under the final exhaust duct opening. See
Figure M.
Note: Nozzles to protect ducts with a transition that is
more than 4 ft (1.2 m) in height, will be required to be posi-
tioned in the opening of the transition from the hood 2 in_ to
8 in_ (51 mm to 203 mm) into the opening using standard
duct nozzle design parameters.
PFRIMETER—
MEASUREMENT
b_ Transition ducts — smaller to larger
y INTO
V:ON
FIGURE 3-3
In cases where the ducUplenum interface opening is smaller
than the final exhaust duct, measure the perimeter/diame-
ter of the final exhaust duct. The nozzle(s) is to be located
within 0 to 6 in_ (0 to 152 mm) of the duct/plenum interface,
centered in the opening. See Figure 3-4.
PEF€Uv1E"rER �'
MFASUREMENT
F
I
i
3
o0ot)aPC
FIGURE 3-4
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 3-3
c_ Multiple risers
In cases of multiple rises, each riser is protected as an indi-
vidual duct. See Figure 3-5-
DUCT
. t I E—DLJGT
PLENUM
FIGURE 3-5
Electrostatic Precipitator — Ducts utilizing electrostatic precip-
itators must be protected above and below the unit. Standard
duct nozzles are used in this application. See Figure 3-6.
20 NOZZLE
F PRECIPITATOR
P—UM
2D NOZZLE
oo5»erc
FIGURE 3-6
Plenum Protection
The Model 1 H nozzle (Part No. 551029) is a one flow nozzle
used for plenum protection_ A single 1 H nozzle can protect a
,-plenum (with single or V-bank filters) 10 ft (3.0 m) long by 4 ft
(1.2 m) wide. Dividing the length into sections equal to or less
,-than 10 ft (3.0 m) in length and positioning a nozzle at the start
of each section can be done to protect longer plenums.
On V-bank plenums, the nozzle(s) must be located at the center
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. (50
mm) from the back edge of the filter, t/3 down from the vertical
height. For either application, the nozzle must be located within
6 in. (152 mm) of the end of the plenum (or module) and aimed
directly down the length of the plenum. The nozzles may point
in the opposite directions as long as the entire plenum area is
. protected, and the 10 ft (3.0 m) limitation is not exceeded. See
Figure 3-7.
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
PAGE 3-4 REV. 06 2014-NOV-10
NOZZLE COVERAGE AND PLACEMENT (Continued)
Plenum Protection (Continued)
I.
w 10 Fr(3.0 m)
MAXIMUM
10FT(10m)
MAXIMUM
000m7
10 FT (3.0 m)
MAXIMUM
30 FT
{9.1 m)
V BANK
113 H
2 IN
i (50 mvrs)
H
SINGLE BANK
C
FIGURE 3-7
KITCHEN KNIGHT It Restaurant Fire Suppression Manual
(Part No. 551274-06)
Appliance Protection
Note: When protecting appliances which are larger than single
nozzle coverage, multiple nozzles can be used.
Larger appliances can be divided into several modules, each
equal to or smaller than single nozzle coverage. Exception:
Pryers must not exceed a maximum of 864 in.2 (55741 mm2).
For modularizing fryers, refer to "FRYER — MULTIPLE N077LE
PROTECTION."
► TABLE 3-1: APPLIANCE PROTECTION
Appliance
Type
Maximum Cooking
Hazard Area per Nozzle
Fryer Without
19 in_ x 19 1/2 in. maximum
Drip Board
(482 mm x 495 mm)
Fryer With
18 in_ x 27 314 in_ (457 mm x 704 mm)
Drip Board
maximum; 19 1/2 in_ x 25 318 in.
(495 mm x 644 mm) maximum
Small Range
Maximum area of 336 in.2 (21677 mm2) with
the longest side to be a maximum of 28 in.
(711 mm)
Large Range
Maximum area of 784 in.2 (50580 mm2) with
the longest side to be a maximum of 28 in.
(711 mm)
Small Wok
24 in. (609 mm) diameter x 6 in. (152 mm)
deep maximum
Large Wok
30 in. diameter x 8 in. deep
(762 mm x 203 mm) maximum
Small
Maximum area of 1080 in_ (69677 mm2)
Griddle
with the longest side to be a maximum of
36 in. (914 mm)
Large
Maximum area of 1440 in.2 (92903 mm2)
Griddle
with the longest side to be a maximum of
48 in. (1219 mm)
Gas Radiant/
Maximum area of 624 in_2 (40257 mm2)
Electric
with the longest side to be a maximum of
Char -Broiler
26 in. (660 mm)
Gas Radiant/
Maximum area of 864 in.2 (55741 mm2)
Electric
with the longest side to be a maximum of
Char -Broiler
36 in. (914 mm)
Lava Rock
Maximum area of 624 in.2 (40257 mm2)
Char -Broiler
with the longest side to be a maximum of
26 in_ (660 mm)
Natural
Maximum area of 480 in.2 (30967 mm2)
Charcoal
with the longest side to be a maximum of
Broiler
24 in. (609 mm)
Mesquite
Maximum area of 480 in.2 (30967 mm2)
Char -Broiler
with the longest to be a maximum of
24 in. (609 mm)
Upright/
Maximum area of 1064 in.2 (68645 mm2)
Salamander
with the longest side to be a maximum of
Broiler
36 in. (914 mm)
Chain Broiler
Maximum area of 1026 in.2 (66193 mm2)
with the longest side to be a maximum of
38 in. (965 mm)
KITCHEN KNIGHT 11 Restaurant Fire Suppression Manual
(Part No. 551274-08)
NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
1• Fryers without Drip Board (19 in_ x 19 112 in. maximum)
(482 mm x 495 mm)
Two nozzles are available for fryer protection: High proxim-
ity and low proximity.
The Model 2H nozzle is used for high proximity fryer protec-
tion. This nozzle is a two flow nozzle. The nozzle must be
located anywhere within the perimeter of the hazard area,
24 in. to 48 in. (610 mm to 1219 mm) above the cooking
surface of the appliance and aimed at the center of the
cooking area. See Figure 3-8.
The Model 2L nozzle is used for low proximity fryer protec-
tion. This nozzle is a two flow nozzle. The nozzle must be
located anywhere on the perimeter of the hazard area, 13
in, to 24 in. (380 mm to 609 mm) above the cooking surface
of the appliance and aimed at the center of the cooking
area See Figure 3-8.
2H HIGH
PROXIMITY
1 N0771E
1 LOCATED
1 j ! ANYWHERE
WITM THE
!I 2H.2L I t PERIMETFR
I �I
f 1 tee Low
I 1 48 IN. (1219 mm) j �'� i PROXiMrrY
I d I NOzn
LOCATED
I1 2L I f ANYWHERE
! 1 24 IN. ON THE
11 i �13 IN. {609 mm) PERIMETER
V� (330 mm) ,����
� 07617SPC OOB?2�PC
I F FRYERS VOTHOUT
' EDGE OF DRIPROARDS
' OF HAZARD
AREA
HAZARD
AREA
FIGURE 3-8
1a. Fryers with Drip Board
The maximum single nozzle protection dimensions depend
on the dimensions of the fry pot only.
For fry pots with maximum dimensions of 18 in. (457 mm)
on the longest side and 324 in.2 (20903 mm2) max, area,
use overall dimensions of 27 3/4 in. (704 mm) on the
longest side and 500 in.2 (32258 mm2) max. area.
For fry pots with maximum dimensions exceeding 18 in, x
324 in.2 (457 mm x 20903 mm2), but no greater than 19112
in. (495 mm) on the longest side and 371 in.2 (23935 mm2)
max area, use overall dimensions of 25 31B in. (644 mm)
on the longest side and 495 in_2 (31935 mm2) area_
Two nozzles are available for fryer protection: High proxim-
ity and low proximity.
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 the perlme-
ter of the hazard area, 24 in. to 48 in_ (610 mm to 1219 mm)
above the cooking surface of the appliance and aimed at the
center of the cooking area. See Figure 3-9-
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 3-5
The Model 2L nozzle is used for low proximity fryer protection.
This nozzle is a two flow nozzle. The nozzle must be located
anywhere on the perimeter of the hazard area, 13 in_ to 24 in.
(330 mm to 609 mm) above the cooking surface of the appliance
and aimed at the center of the cooking area. See Figure 3-9-
2H
I
1
1 zH, 2L
' 4s IN
I (1219 mm)
! / I
! 1 2L 24 IN,
I 1 (609 mm)
'ILT I
1 r f 13 IN,
r
r ,
' r
r
EDGE OF
E---_ OF , HAZARD
HAZARD AREA
AREA ooM7)aPl�:
HIGH
PROXIMITY
NOZZLE
0011-111-�ANYWHERP
LOCATED
I
r
WrrHINTHE
f I a i
PERIMETER
LOw
PROXIMITY
I ,
NOZZI
LOCATED
ANYWHERE
ON THE
PERIMETER
ooca po
FRYERS WTM
DRIPBOARDS
FIGURE 3-9
1.b Fryers — Multiple Nozzle Protection
Fryers exceeding the coverage of a single nozzle can
be divided into modules. Each module must not exceed
the maximum area allowed for a single nozzle_ However,
when utilizing multiple nozzle protection, the longest side
allowed for a fryer with drip board can be used, regardless
of whether the fryer has a drip board or not.
The maximum size fryer that can be modularized is 864 in.2
(55741 mm2).
Design requirements for multiple nozzle fryers are broken
down as follows:
1. If the fryer includes any dripboard areas, measure both
the internal length (front to back) and width.of the frypot
portion_ Then measure the internal length and width of
the overall hazard area including any dripboard areas.
Determine the area of both the frypot and the area of the
overall vat by multiplying corresponding length and width
dimensions.
2. Divide the frypot or overall vat into modules, each of
which can be protected by a single nozzle, based on the
maximum dimension and area coverage of the nozzle as
specified in Table 3-2: Design.
• If the module considered does not include any portion
of the dripboard, use only the maximum frypot area
and maximum dimension listed in Table 3-2: Design.
• if the module considered includes any dripboard areas,
use both the maximum frypot area and dimension
listed in Table 3 2: Design, and the maximum overall
area and dimension listed in Table 3-2: Design_
3. None of the maximum dimensions may be exceeded.
If either the maximum frypot or the overall sizes are
exceeded, the area dMded into modules will need to
be redefined with the possibility of an additional nozzle.
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
PAGE 3-6 REV. 06 2014-NOV-10
KITCHEN KNIGHT It Restaurant Fire Suppression Manual
(Part No. 551274-06)
`NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
TABLE 3-2: DESIGN
Longest
Vat
Coverage
Side
Coverage
with Drip
Option 1
27 314 in.
324 in2
500 in2
(704 mm)
(20903 mm2)
(32258 mm2)
Option 2
25 318 in_
371 in2
495 in2
(644 mm)
(23935 mm2)
(31935 mm2)
2. Small Mange (336 in.2 (21677 mm2) maximum, 28 in.
(711 mm) longest side maximum). Use this when nozzle is
center located.
f
,H
IN.
('1270 mm)
1H 40 tN.
(1016 mm)
REFERENCE,
o
POINT
,21N. 28IN.1711 mm)
Two nozzles are availal`ile for small range protection_ High (so4 mm) rvlAxlr�sulu LENGTH
proximity and low proximity. VI orxU(w) a) ,
The Model 1 H Nozzle (Part No. 551029) is used for high
proximity small range protection. This nozzle is a one flow
nozzle_ When using high proximity protection, the range
cannot be under a backshelf. This nozzle must be located
on the front/back centerline of the appliance, 40 in. to
50 in_ (1016 mm to 1270 mm) above the Cooking surface,
and aimed directly down within the "Nozzle Location Area"
depending on the size of the hazard area. See Table 3-3:
Nozzle Flexibility Placement below. See Figure 3-10.
TABLE 3-3: NOZZLE FLEXIBILITY PLACEMENT (When
using nozzle flexibility, the maximum width that can be
protected is 12 in_ (304 mm))
Length — L Width — W Front/Rear
in. (mm) in. (mm) in_$ (mm)*
12 (304) 12 (304) 8 (203)
13 (330) 12 (304) 71/2 (190)
14 (355) 12 (304) 7 (177)
15 (381) 12 (304) 612 (165)
16 (406) 12 (304) 6 (152)
17 (431) 12 (304) 5 1 t2 (139)
18 (457) 12 (304) 5 (127)
19 (482) 12 (304) 412 (114)
20 (508) 12 (304) 4 (101)
21 (533) 12 (304) 3112 (38)
22 (558) 12 (304) 3 (76)
23 (584) 12 (304) 2112 (63)
24 (609) 12 (304) 2 (50)
25 (635) 12 (304) 1112 (38)
26 (660) 12 (304) 1 (25)
27 (685) 12 (304) 1t2 (12)
28 (711) 12 (304) 0 (0)
Distance from Centerline, either toward front or toward back, of hazard area,
starting from the reference point
HIGH
PROXIMITY
OD1.f8ORG
NOZZLE
LOCATION
AREA
FIGURE 3-10
The Model 1 L Nozzle (Part No. 551026) is used for low prox-
imity small range protection. This nozzle is a one flow nozzle.
The range can be equipped either with or without a back -
shelf. Either type requires the same nozzle requirements. The
nozzle must be located 22 in. (558 mm) from either end of the
hazard area centered from left to right. it must be 13 in_ to 24 in.
(331 mm to 609 mm) above cooking surface, and aimed at a
point one half the distance of whatever the height dimension of
the nozzle is. When determining nozzle and aim point locations,
both measurements are to be taken from the same end of the
hazard area. Example: The nozzle is mounted 20 in_ (508 mm)
above the cooking surface. The aim point from the edge of the
hazard would then be 10 in. (254 mm) which is one half the
nozzle mounting height dimension. See Figure 3-11. Note:
Nozzles must be placed at or below the shelf, within the nozzle
height limitations.
FDGE OF
HAZARD AREA
(FRONT OR 6ACIQ
\ I /
22 IN_
(558 mm) �� 1L
x
2Z IN. f I \
(558 mm)
�� 1 L 2a IN.
(609 mm)
- `
1
(H)
13 IN.
�' (33t mm)
[H)
i
` F(H)
HAZARD
�.. oosisi w;,
112 (H) SURFACE
FIGURE 3-11
KITCHEN KNIGHT 11 Restaurant Fire Suppression Manual
(Part No. 551274-06)
NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
2a. High -Proximity Backshelf Protection -- When using the
2L nozzle for range protection with high -proximity back -
shelf, the maximum length of bumers being protected must
not exceed 28 in. (711 mm) and the maximum area of the
burners must not exceed 336 in.2 (21677 mm2). The back -
shelf must be a minimum of 18 in. (458 mm) above the top
of the range and may overhang the burner by a maximum
of 11 in_ (279 mm).
Note: Although most shelves exceed 11 in. (279 mm) in
overall depth, make sure the shelf does not exceed 11 in.
(279 mm) overhang of the bumer.
Nozzle must be located on the front edge of the front bumer
and aimed at a point 10 in. (254 mm) forward from the
back edge of the back bumer on the front -to -rear center-
line. Nozzle must be mounted 24 in. to 35 in. (610 mm to
889 mm) above the hazard surface. See Figure 3-12.
CENTERLWEu,n
HIGH PROXIMITY BACK SHELF PROTECTION WRH THE 2L NOZZLE
ARrA OF PROTECTION PER NOZZLE: rAAX. LENGTH OF BURNER
GRATES 26 IN. (711 mm) AND MAX_ AREA OF BURNER GRATES
NOT TO EXCEED W IN. (216T7 mm)
FIGURE 3-12
3. Larger Burner Range (784 in.2 (50580 mm2) maximum,
28 in. (711 mm) longest side maximum)
One nozzle is available for large range protection: High
proximity.
The Model 2L Nozzle (Part No. 551027) is used for high
Proximity large range protection. This nozzle is a two flow
nozzle. When using high proximity protection, the range
cannot be under a backshelf. This nozzle must be located
34 in. to 48 in_ (864 mm to 1219 mm) above the Cooking
surface, and aimed directly down within the mounting
area, based on the hazard size, as described in the Nozzle
Positioning Chart_ See Figure 3-13.
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 3-7
48 K
(1219 Ynm)
.t
\ � �w
y W641i
FIGURE 3-13
Example: A four bumer range has a hazard size of 20 in.
(508 mm) in length and 27 in_ (685 mm) in width. Follow
down the Range Length in Table 3-4: Nozzle Positioning
until you come to 20 in. (508 mm). Continue down this
column until the correct width appears in the width column.
When the width of 27 in. (685 mm) is reached, read across
to the radius column to determine the size of radius allowed,
for positioning of the nozzle, from the hazard area center-
line. In this example, the correct radius is 3 in_ (76 mm). The
nozzle can be aimed straight down anywhere within a 3 in_
(76 mm) radius of the hazard area centerline.
TABLE 3-4: NOZZLE POSITIONING
Range
Length - L
in. (mm)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
18 (457)
Range
Width — W
in. (mm)
18 (457)
19 (482)
20 (508)
21 (533)
22 (558)
23 (584)
24 (609)
25 (635)
26 (660)
27 (685)
28 (711)
Radius — R
in. (mm)
71/8 (180)
63/4 (171)
63/8 (161)
6 (152)
5 5/8 (142)
5 114 (133)
4 314 (120)
43/8 (111)
4 (101)
3518 (92)
3 1l$ (79)
KITCHEN KNIGHT !i Restaurant Fire Suppression Manua!
(Part No. 661274-06)
NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
TABLE 3-4: NOZZLE POSITIONING (Continued)
Range
Range
Length
- L
Width — W
Radius — R
in.
(mm)
in.
(mm)
in.
(mm)
28
(711)
18
(457)
3 1 /8
(79)
28
(711)
19
(482)
2 718
(73)
28
(711)
20
(508)
2 518
(66)
28
(711)
21
(533)
2 1 /4
(57)
28
(711)
22
(558)
2
(50)
28
(711)
23
(584)
1 518
(41)
28
(711)
24
(609)
13/8
(34)
28
(711)
25
(635)
1
(25)
28
(711)
26
(660)
314
(19)
28
(711)
27
(685)
3/8
(9)
28
(711)
28
(711)
0
(0)
4. Small Wok (24 in. (609.6 mm) diameter x 6 in. (152 mm)
depth maximum)
Two nozzles are available for small wok protection: High
proximity and low proximity_
The 1 H nozzle (Part No. 551029) is used for high proximity
wok protection. This nozzle is a one flow nozzle. The nozzle
must be located anywhere on the perimeter of the appli-
ance, 24 in. to 48 in. (609.6 mm to 1219 mm) above the top
edge of the wok and aimed at the center of the wok. See
Figure 3-14.
The 1 L nozzle (Part No. 551026) is used for low proximity
wok protection_ This nozzle is a one flow nozzle. The nozzle
must be located anywhere on the perimeter of the appli-
ance, 13 in. to 24 in_ (331 mm to 609.6 mm) above the top
edge of the wok and aimed at the center of the wok. See
Figure 3-14_
I1H
r
rr
l
r
f 1H, 1L
1
,
43 IN.
fr r' (1219 MM)
"I
L
i
r ! i
! ' 241N.
' I (69.6 mm)
s 13 w_
r (331 mm}
I I
NOZ23-E LOCATED
ON PERIMETER
24 IN. (609.6 mm)
DIAMETER MAXIMUM
FIGURE 3-14
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 3-9
5. Large Wok (Greater than 24 in. to 30 in. (609.6 mm to
762 mm) diameter x 8 in. (9-03 mm) depth maximum)
Two nozzles are available for large wok protection. High
proximity and low proximity_
The 2H nozzle (Part No_ 551028) is used for high proximity
wok protection_ This nozzle is a two flow nozzle. The nozzle
must be located anywhere on the perimeter of the appli-
anoe, 24 in_ to 48 in. (609.6 mm to 1219 mm) above the top
edge of the wok and aimed at the center of the wok. See
Figure 3-15.
The 2L nozzle (Part No_ 551027) is used for low proximity
wok protection. This nozzle is a two flow nozzle. The nozzle
must be located anywhere on the perimeter of the appli-
ance, 13 in. to 24 in. (331 mm to 609.6 mm) above the top
edge of the wok and aimed at the center of the wok. See
Figure 3-15.
I2H
r
,I
r
�I
'
r
I
2H, 2L
f
!
r
I
48 IN.
(1219 mm)
! `
I
2L
,
!
24IN_
'
I
r � �
13 M.
r '
I (331 MM)
-� NOZZLE LOCATED
ON PERIMETER
°06t 30 IN_ (762 mm)
DIAMETER MAXIMUM
FIGURE 3-15
6. Small Griddle (1080 in.2 (69677 mm2) x 36 in_ (914 mm)
longest side maximum)
Two nozzles are available for small griddle protection: High
proximity and low proximity.
The 1 H nozzle (Part No. 551029) is used for high proximity
griddle protection. This nozzle is a one flow nozzle. The
nozzle must be located above any corner of the hazard
surface, 24 in. to 48 in. (609.6 mm to 1219 mm) above the
cooking surface of the appliance and aimed at a point 12 in_
(304 mm) over and 12 in. (304 mm) in from the comer below
the nozzle. See Figure 3-16.
SECTION 3 — SYSTEM DESIGN
UL EX3830 ULC EX3830
PAGE 3-10 REV. 06 2014-NOV-10
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
(Part No. 551274-06)
NOZZLE COVERAGE AND PLACEMENT (Continued)
Appliance Protection (Continued)
The 1 L nozzle (Part No. 551026) is used for low proximity
griddle protection_ This nozzle is a one flow nozzle. The
nozzle must be located above any corner of the hazard
surface, 10 in. to 24 in_ (254 mm to 609.6 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the comer below
the nozzle. See Figure 3-16.
EDGE OF HAZARD AREA
NOZZLE (ANY
CORNER) i 12IN.
t (304 mm)
- - `X
12 IN-
(304 mm) AIM POINT
1H
k
1
yi
1H. 1L
4
7
48 IN.
(1279mm} 1L
IN.
24
�
HAZAH❑
SURFACE
N.
(2-514 mm) 12 IN.
(304 mm) oxievc
FIGURE 3-16
&a. Small Griddle (1080 in.2 (69677 mm2) x 36 in. (914 mm)
longest side maximum) Alternate Protection
Two nozzles are available for small griddle alternate
protection: High proximity and low proximity.
The 2H nozzle (Part No. 551028)is used for high proximity
griddle protection. This nozzle Is a two flow nozzle. The
nozzle must be located 4 to 6 in. (0 to 152 mrn) from short
side of the hazard surface, 24 in. to 48 in_ (609.6 mm to
1219 mm) above the cooking surface of the appliance and
aimed at the center of the hazard area. See Figure 3-17.
The 2L nozzle (Part No. 551027) is used for low proximity
griddle protection. This nozzle is a two flow nozzle_ The
nozzle must be located 0 to 6 in. (0 to 152 mm) from the
short side of the hazard surface, 13 in. to 24 in. (331 mm to
609.6 mm) above the cooking surface of the appliance and
aimed at the center of the hazard area. See Figure 3-17.
2H
(
1
ti
5
EDGE OF
4
HAZARD AREA 48 IN,
6 IN. (1219 mm)
(152OLL
IN- 1
mm)52 rnrn)
24IN. 1
NOZZLE px).6 mml
LOCATION 13 IN. �\ `
ZONE (331 mm) ♦ M
\
. i2i-rif
FIGURE 3-17
Large Griddle (1440 in2 (92903 mm2) x 48 in_ (1219 mm)
longest side maximum)
Two nozzles are available for large griddle protection: High
proximity and low proximity.
The 2H nozzle (Part No. 551028) is used for high proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located above any comer of the hazard
surface, 24 in. to 48 in. (609.6 mm to 1219 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the comer below
the nozzle. See Figure 3-18_
The 2L nozzle (Part No. 551.027) is used for low proximity
griddle protection. This nozzle is a two flow nozzle. The
nozzle must be located above any corner of the hazard
surface, 10 in. to 24 in. (254 mm to 609.6 mm) above the
cooking surface of the appliance and aimed at a point 12 in.
(304 mm) over and 12 in. (304 mm) in from the comer below
the nozzle. See Figure 3-18.
EDGE OF
HAZARD AREA
NOZZLE (ANY
CORNER)
12 IN.
(304 m1n)
t
12 IN.
(3o4 mTn) AIM POINT
y
y
y`
2H, 2L yy
48111.
(1219 mm) � y
FL y
� y
24 IN.
(609.6 HAZARD
MM) y SURFACE
I 10IN,
(254 MM) `l�l
rk� 12 IN.
I(3o4 mm) III
E— oostaas�
FIGURE 3-18
SECTION 4 — SYSTEM INSTALLATION
UL EX3830 ULC EX3830
PAGE 4-2 REV. 06 2014-NOV-10
KITCHEN KNIGHT It Restaurant Fire Suppression Manual
(Part No. 551274-06)
CONTROL HEAD INSTALLATION (Continued)
Multiple Cylinder Installation
1. Multiple Cylinder Actuation Using MCH3/ECH3/NMCH3
Control Head
The Model MCH3/ECH3/NMCH3 Control Head can be used to
pneumatically actuate a maximum of five agent cylinders with a
16 gram CO2 cartridge. When a control head is used for multiple
cylinder actuation, it cannot be mounted directly onto a cylinder
valve. The control head must be installed remotely using a
Model MB-P2 Control Head Mounting Bracket. The bracket must
be anchored to the wall using bolts or lag screws.
CAUTION
Do not screw the control head directly to a wall as this will warp
the control head, not allowing the mechanism to actuate.
In order to actuate the agent cylinder(s) from a control head, a
1/4 in. NPT x 45' 1/4 in. flare type fitting (conforming to SAE
J513c) or Male Straight Connector (Part No. 32338) must be
screwed into the base of the control head actuator. Pneumatic
tubing or stainless steel actuation hose is then used to connect
the control head to the valve cap assembly of each agent cylin-
der valve, See Figure 4-3.
NOTICE
Pneumatic tubing (copper) used for remote
cylinder actuation shall have an outside diam-
eter of 1/4 in. with a minimum wall thickness
of 1 /32 in. (0.8 mm). This is commonly known
as refrigeration -type copper tubing. All tubing
fittings shall be of the 1/4 in., 45' flare type
conforming to SAE J513c.
Compression type fittings are not accept-
able.
MCH3, NMCH3, OR ECH3
CONTROL HEAD
114 IN. OD COPPER TUBING OR S_5. ACTUATION HOSE
MAX. 18 FT (5.4 m) FOR FIVE CYLINDER ACTUATION
A single Model MCH31ECH3/NMCH3 Control Head can actuate:
1. Up to four cylinders with a maximum of 25 ft (7.6 m) of
copper or stainless steel pneumatic tubing or stainless
steel actuation hose when using an o-ring (Part No. 55531)
installed in place of the Teflon washer and the 16 gram 002
cartridge_
2. Up to five cylinders with a maximum of 18 ft (5.4 m) of
copper or stainless steel pneumatic tubing or stainless
steel actuation hose when using an o-ring (Part No. 55531)
installed in place of the Teflon washer and the 16 gram 002
cartridge.
Confirm the Teflon washer in the control head actuator assem-
bly has been replaced with the o-ring (Part No. 55531) and the
16 gram CO2 cartridge is installed for four and five cylinder
single control head actuation.
The actuation line must be tested for any leaks by using a hand
held or electric vacuum pump. The pump should be used to draw
a vacuum on the actuation line at the fitting closest to the control
head. A vacuum should be pulled to 20 in. (508 mm) of mercury.
Leaks exceeding 5 in. (127 mm) of mercury within 30 seconds
are not allowed. If the gauge on the vacuum pump indicates a
leak in the line, examine the actuation line for loose fittings or
damage. Correct any leaks and retest.
En
45' 1/4 IN FLARED
TUBING NUT WITH
COPPER TUBING
114 IN. WIT X 45- 1M IN. FLARE TYPE
FITTING (SAE J513c) OR MALE STRAIGHT
CONNECT01i (PART NO. 32338)
�► TO REFRAINING
CYLINDERS
FIGURE 4-3
nw2wc
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
(Part No. 551274-06)
DEMOTE PULL STATION INSTALLATION (Continued)
The Pull Station can be surface mounted or flush mounted.
For flush mounting a RACO #232 4 in. (102 mm) deep elec-
trical box or equivalent must be used (dealer supplied). it is
connected to the releasing device using 1/16 in. (1.6 mm)
diameter stainless steel cable_ The cable enters the pull station
box through the center hole in the bottom, top, either side,
or the center back hole_ The cable enters the control head
through the top -center knockout. The cable must be enclosed in
112 in. EMT conduit with a PYRO-CHEM KITCHEN KNIGHT
11 comer pulley at each change in conduit direction. Maximum
limitations for the Model RPS-M Remote Mechanical Pull Station
are as follows:
Model RPS-M Cable Rain Limitations When Used with
Model ECH3, MCH3, EN-MCU3, and NUCH3 Control Heads
and CBP-1, SBP-1, and WBP-1 Pulley Elbows
Maximum length of cable: 150 It (45.7 m)
Maximum # of pulleys: 40
After mounting the pull station box and conduit, feed the stain-
less steel cable from the releasing device, through the conduit,
and into the pull station box_ Feed the cable through the bushing
and through the hole provided in the pull handle. Loop the cable
through the pull handle and secure it with the crimp provided
(see Figure 4-17).
ULL
CABLE HANDLE
BUSHING
FIGURE 4-17
002s"Pc
PULL STATUN
SECTION 4 — SYSTEM INSTALLATION
UL EX3830 UI_C EX3830
2014-NOV-10 REV. 06 PAGE 4-9
Cut and thread the cable through the hole in the latching arm
of the control head and pull the cable tight. Crimp the cable
approximately 6 in. to 8 in. (152 mm to 203 mm) below the
latching arm. Note: NFPA-17A requires the pull length to be no
more than 14 in. (355 mm).
NOTICE
Crimps must always be used in conjunc-
tion with two cable lengths. Loops are the
accepted method of connecting the cable
to mechanical components. The crimp must
never be used on a single cable_ Exception:
Single cable crimp allowed in detection and
gas valve ratchet wheel using Stop Sleeve
(Part No. 26317) (Packages of 10: Part No_
24919)_
Pull the pull handle until the crimp touches the latching arm. See
Figure 4-18_ Coil the excess cable in the pull box and attach the
cover plate with the four screws provided_ Insert the pull handle
into the cover plate and insert the plastic break rod.
,-Note: Excess wire rope must be coiled in the pull station box,
►not in the control head.
PULL STATION
CONNECT ON
REMOTE
PULL STATION
TERMINATION
RING
PIN
FIGURE 4-18
D08278P01003r47P0
SECTION 4 — SYSTEM INSTALLATION
UL EX3830 ULC EX3830
PAGE 4-10 REV. 06 2014-NOV-10
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
(Part No. 551274-06)
GAS SHUT-OFF VALVE INSTALLATION
All gas valves are designed for indoor installation only. All gas
valve installation and testing shall be made in accordance with
the authority having jurisdiction.
To reduce the risk of explosion due to leaking gas, make
certain that the gas line is turned off before connecting the gas
valve. Failure to comply could result in serious personal injury
or death_
Mechanical Gas Shut -Off Valve Installation
TEMPERATURE LIMFTATIONS: Maximum ambient and fluid
temperature is 120 °F (49 °C).
POSITIONING: Valve may be mounted in any position_
PIPING:
To prevent damage to valve, DO NOT OVER -TIGHTEN PIPE
CONNECTIONS. Connect piping to valve in accordance with
markings on valve body. Pipe compound should be applied to
male pipe threads only. When tightening pipe, do not use valve
as a lever. To avoid strain on valve, assure all piping is aligned
and supported properly_
STRAINER INSTALLATION: For the protection of the gas
valve, install a strainer or suitable filter in the inlet piping, as
close to the gas valve as possible. Periodic cleaning of strainers
recommended_
PREVENTIVE MAINTENANCE.
1. Keep medium flowing through valve as free from foreign
material as possible.
2_ Keep valve filter/strainer clean.
IMPROPER OPERATION:
1. Incorrect Pressure: Pressure to valve must be within range
specified on nameplate_
2. Leakage: It leakage is detected, contact an authorized
PYRO-CHEM distributor immediately.
The Model MCH3/NMCH3 Control Head is used to operate the
mechanical gas shut-off valve. This valve is located in the fuel
gas supply line to the cooking appliance(s). The valve body
has an arrow which indicates direction of gas flow through the
valve_ The gas shut-off valve is spring loaded and requires five
pounds of force to hold it open. This force is supplied by a 1 /16
in. (1.6 mm) diameter stainless steel cable that is connected to
the control head.
After the valve is installed in the gas line, 1/2 in. conduit must
be run from the top center knockout of the gas valve box to the
middle right-hand knockout in the control head. A PYRO-CHEM
KITCHEN KNIGHT ll comer pulley is used wherever a change
in conduit direction is required.
Gas Valve Cable Run Limitations When Used with Model
MCH3, EN-MCU3, and NMCH3 Control Heads and CBP-1,
SBP-1, and WBP-1 Pulley Elbows
Maximum length of cable: 100 ft (30.4 m)
Maximum # of pulleys: 30
Remove the gas valve cover and thread the stainless steel cable
through the conduit back to the control head. Thread the cable
through the hole in the gas valve ratchet wheel. The line must
then be crimped, and the crimp positioned inside the center of
the ratchet wheel.
NOTICE
Crimps must always be used in conjunc-
tion with two cable lengths_ Loops are the
accepted method of connecting the cable
to mechanical components. The crimp must
never be used on a single cable. Exception:
Single cable crimp allowed in detection and
gas valve ratchet wheel using Stop Sleeve
(Part No. 26317) (Packages of 10: Part No_
24919)_
At the gas valve, loop the cable through the valve stem and
secure it with the crimp provided (see Figure 4-19).
FIGURE 4-19
Oa2$Wc
Do not over -tension wire rope going from control head to gas
valve at gad valve ratchet wheel. Over -tensioning may cause
the valve to not dose properly, resulting in the fuel supply not
completely shutting off.
KITCHEN KNIGHT 11 Restaurant Fire Suppression Manual
(Part No. 551274-06)
GAS SHUT-OFF VALVE INSTALLATION (Continued)
Mechanical Gas Shut -Off Valve Instaiiaiion (Continued)
The gas valve line can now be put into a set position by applying
tension to the gas valve line_ This is accomplished by using a
1/2 in. hex wrench on the gas valve ratchet wheel. The ratchet
wheel will be ratcheted in a clockwise direction until the gas
valve is fully open. See instruction Sheet (hart No_ 550571)
included in gas valve shipping assembly, for detailed informa-
tion. Secure the gas valve cover plate to the gas valve box with
the four screws provided_ The gas valve line is now in a set
position. See Figure 4-20_
�I
FIGURE 4-20
006217PC
Electrical Gas Shut-off Valve Installation
Before working on any electrical wiring, make certain main
power has been disconnected_ Failure to disconnect main
power could cause personal injury or death if contact is made
with energized wires. All electrical wiring and connections to be
made in accordance with the authority having jurisdiction and
all local electrical codes_
The Model MCH3/ECH3MMCH3 Control Head is used to
operate the electrical gas shut-off valve, This valve is located in
the fuel gas supply line to the cooking appliance(s)_ The valve
body has an arrow which indicates direction of gas flow through
the valve. A reset relay (Solenoid Monitor, Model SM-120) must
always be used with an electrical gas shut-off valve_ For proper
wiring of the electrical gas shut-off valve, see Figure 4-16.
. Note: Valve must be installed so that the solenoid is above the
horizontal pipe line with no more than a 5 degree lean either
. way.
PULLEY TEE INSTALLATION
The Pulley Tee is used to connect two mechanical gas valves
or two remote mechanical pull stations to a single control head.
The cable proceeding from the control head must always enter
the branch of the pulley tee. See Figure 4-21 _
A pulley tee that is used to dose two gas valves can only be
used to close gas valves with similar stem travel. Gas valves
from 3/4 in. up to 1 112 in_ can be used on the same pulley tee.
A 2 in. gas valve can be used only with another 2 in_ gas valve.
SECTION 4 - SYSTEM INSTALLATION
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PAGE 4-11
Gas valves from 2 1 N in. up to 3 in. can be used on the same
pulley tee. As an example, using a 3/4 in. gas valve with a 3 in.
gas valve will not allow the 3 in. valve to fully open.
a
The pulley tee must never be used to connect multiple fusible
link lines to a single control head.
�oo
12 EN. (305 mzlsl
MINIMUM FROM
CFFIM? SLEEVF TO
PULLEYTEE
FIGURE 4-21
oo1Bs1
ELECTRICAL (SNAP -ACTION) SWITCH INSTALLATION
See NFPA 72, "National Fire Alamo Code," Initiating Devices
section, for the correct method of wiring connection to the fire
alarm panel.
The Model MSSPDT, MS-DPDT, MS-3PDT, or MS-4PDT
Electrical (Snap -Action) Switch is available for use where
an electrical output is required_ These switches can be field
installed in the control head. See Figure 4-22 and Figure 4-23
and refer to Instruction Sheet (Part No_ 551159) included with
switch shipping assembly, for detailed mounting instructions.
FIGURE 4-22
PUP1 BPC
FIGURE 4-23
0031WK