SECTION 2 – COMPONENTS
UL EX3830 ULC EX3830
PagE 2-10 REV. 06 2014-NOV-10
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
ELECTRICAL SWITCHES
The electrical switches are intended for use with electric gas
valves, alarms, contactors, lights, contractor supplied electric
power shut-off devices and other electrical devices that are
designed to shut-off or turn on when the system is actuated.
NOTE
No electrical connections shall be made inside
the control head. all electrical wiring shall exit
the control head through the knock-out on the
side of the box. all electrical connections must
be made in an approved electrical box.
Switches are available in kits: One Switch Kit (Part No. 551154);
Two Switch Kit (Part No. 551155); Three Switch Kit (Part No.
551156), and Four Switch Kit (Part No. 551157). Mounting hard-
ware and 12 in. wire assemblies are provided with each kit. Each
switch has a set of single-pole, double-throw contacts rated:
UL/cUL/CSa Rating
ENEC Rating
250 VaC, 21a Resistive
IE4T105µ approved
250 VaC, 2 HP
250V, 21a Resistive
125 VaC, 1 HP
8a Motor Load
N.C.
(BROWN)
N.O.
(BLaCK)
COMMON
(RED)
FIguRE 2-27
001612
The alarm Initiating Switch Kit (Part No. 550077) can be field-
mounted within the control head. This switch must be used to
close a supervised circuit to the building main fire alarm panel
when the control head 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 compo-
nents along with a mounting instruction sheet. The switch is
rated 50 ma, 28VDC. See Figure 2-28.
WHEN SPaCER aND
SWITCH aRE PROPERLY
MOUNTED, THIS DIVIDER
MUST BE BETWEEN THE
N.O. aND N.C. TERMINaLS
TOWaRD REaR OF
CONTROL HEaD
N.O.
COM
SPaCER
N.C.
FIguRE 2-28
004890
See NFPa 72, “National Fire alarm Code,” Initiating Devices
section, for the correct method of wiring connection to the fire
alarm panel.
MODEL SM-120 SOLENOID MONITOR
The Model SM-120 Solenoid Monitor (Part No. 550302) is
used in conjunction with the Model ECH3-120 control head to
supervise the actuation and detection circuits. In the event of a
problem in the circuit, a light on the monitor goes out. Two sets
of NO/NC dry contacts are provided. The unit mounts directly to
a three-gang wall outlet box. The Model SM-120 acts as a reset
relay when used with an electric gas valve. Electric gas valve
wiring instructions are provided in the installation section of this
manual. See Figure 2-29.
Note:
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 secondary power supply (by others) in
accordance with NFPa 17a, NFPa 96, and the local authority
Having Jurisdiction (aHJ). When the Solenoid Monitor Model
SM-120 (Part No. 550302) is used as a reset relay with an elec-
tric gas valve, a UL Listed 1a, 120VaC secondary power supply
is not required.
FIguRE 2-29
002860PC
PIPE AND FITTINgS
Pipe and fittings must be furnished by the installer. Schedule 40
stainless steel, chrome plated, or black pipe and fittings must be
used. galvanized pipe and fittings are not to be used.
