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Heat & Glo • SL-350TRS-C, SL-550/750TRS-IPI-D • 2065-985 Rev. J • 5/06
41
Figure 36. Intermittent Pilot Ignition (IPI) Wiring Diagram
TRANSFORMER
3 VAC
PLUG IN
R
E
D
BATTERY PACK
THERMOSTAT
WIRE ASSEMBLY
JUMPER WIRE
(TO BROWN)
ORANGE
GREEN
VALVE
GROUND TO
FIREPLACE
CHASSIS
WHITE
ORANGE
IGNITION MODULE 3 VAC INTERMITTENT PILOT IGNITOR
HOT
NEUTRAL
I
S
Optional Accessories
Optional fan and remote control kits require that 110-120
VAC be wired to the factory installed junction box before
the appliance is permanently installed.
Wall Switch
Position the wall switch in the desired position on a wall.
Run a maximum of 25 feet (7.8 m) or less length of 18
A.W.G. minimum wire and connect it to the appliance ON/
OFF switch pigtails.
CAUTION: LABEL ALL WIRES PRIOR TO DISCONNEC-
TION WHEN SERVICING CONTROLS. WIRING ERRORS
CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
For Intermittent Pilot Ignition (IPI) Wiring
Appliance Requirements
This appliance requires that 110-120 VAC be wired to the
junction box. Maintain correct polarity when wiring the junc-
tion box.
Operation using Battery Power
This appliance has an optional battery operation. The sys-
tem is fully functional with the use of two “D” size batteries
without ordinary 110-120 VAC power.
WARNING
Wire 110V to electrical junction box.
Do NOT wire 110V to valve.
Do NOT wire 110V to wall switch.
• Incorrect wiring will damage millivolt valves.
• Uninterrupted or continuous power is
required at all times in IPI system
EXCEPT
when using battery back-up.
• Incorrect wiring will override IPI safety lockout and may
cause explosion.
Wiring to the battery pack should be left disconnected in
order to conserve battery life. In the case of a loss of power,
simply connect red and black wire leads to activate battery
power (connect red to red, black to black). The appliance
can be used as necessary. Once power (110 VAC) is re-
stored, disconnect red and black wire leads to extend bat-
tery life.