SECTION 4 – SYSTEM INSTALLATION
UL EX3830 ULC EX3830
2014-NOV-10 REV. 06 PagE 4-11
KITCHEN KNIGHT II Restaurant Fire Suppression Manual
GAS SHUT-OFF VALVE INSTALLATION (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 (Part 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.
FIGURE 4-20
006217PC
Electrical Gas Shut-off Valve Installation
!
WARNING
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/ECH3/NMCH3 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 close two gas valves can only be
used to close gas valves with similar stem travel. gas valves
from 3/4 in. up to 1 1/2 in. can be used on the same pulley tee.
a 2 in. gas valve can be used only with another 2 in. gas valve.
gas valves from 2 1/2 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.
CAUTION
The pulley tee must never be used to connect multiple fusible
link lines to a single control head.
12 IN. (305 mm)
MINIMUM FROM
CRIMP SLEEVE TO
PULLEY TEE
FIGURE 4-21
001091
ELECTRICAL (SNAP-ACTION) SWITCH INSTALLATION
See NFPa 72, “National Fire alarm Code,” Initiating Devices
section, for the correct method of wiring connection to the fire
alarm panel.
The Model MS-SPDT, 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
006218PC
FIGURE 4-23
003647PC
