Heatilator • GNTC50 • 4002-095 Rev H • 06/07
37
A. Connect to the Appliance
Shock Risk
Explosion Risk
Do NOT wire 110V to valve.
Do NOT wire 110V to wall switch
• Incorrect wiring will damage millivolt
valves.
WARNING
• This appliance may be used with a wall switch, wall
mounted thermostat and/or a remote control.
• If using thermostat use one compatible with a millivolt gas
valve system.
• Follow parameters for locating thermostat (see individual
thermostat instructions) to ensure proper operation of
appliance.
• Use low resistance thermostat wire for wiring from ignition
system to the wall switch and thermostat.
• Keep wire lengths short as possible by removing any
excess wire length.
• Low voltage and 110 VAC voltage cannot be shared within
the same wall box.
10
10
Electrical Information
Note:
This appliance must be electrically wired and
grounded in accordance with local codes or, in the absence
of local codes, with
National Electric Code ANSI/NFPA
70-latest edition
or the
Canadian Electric Code CSA
C22.1.
B. Standing Pilot Ignition System Wiring
• This standing pilot ignition system wiring does not require
a 110 VAC supply to operate.
• It is recommended that a 110 VAC junction box be installed
for use with a fan or remote control. (See Figure 10.3 for
junction box wiring.)
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
CAUTION
Shock Risk
• Replace damaged wire with type 105°
C rated wire.
• Wire must have high temperature
insulation.
WARNING
Note:
Do not wire 110V to the millivolt valve! This will
damage the valve.
Optional Accessories Requirements
Wiring for optional accessories should be done now to
avoid reconstruction.
Figure 10.2 Standing Pilot Ignition Wiring Diagram
Pilot
Ignitor
GAS
VALVE
To Burner
Gas Inlet
Inlet Tap
ORG
TAN
Thermopile
WHT
RED
BRN
Thermocouple
Copper
Tubing
Push
Button
Ignitor
Outlet Tap
Wall Switch (or
thermostat if
heater-listed)
WHT
RED
GRN*
TH
TP
TH-TP
Detail of wall switch connection