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33ISDG Vent Free Gas Fireplace System
Wall
Switch
Figure 16 -
Wiring Diagram
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
The milli-volt valve is a self-powered combination gas
control THAT DOES NOT REQUIRE 110V AC TO OPER-
ATE.
Refer to Figure 16 and installation instructions provided
with optional wall switch, thermostat or remote control for
wiring instructions. A maximum length of 15 feet of 18awg
two conductor wire is to be used for wall switch or ther-
mostat installations.
NOTE: Thermostats and switches must be suitable for
millivolt operation.
14
On/Off
Switch
TH = 3
TP = 1
TP/TH = 2
ELECTRICAL WIRING - MILLIVOLT
On/Off
Switch
ODS
Pilot
Valve
Spade
Terminal
Switch
FP2112
CONNECT OPTIONAL WALL SWITCH OR
wiring diagram
THERMOSTAT
12/08
1. Use 18 awg, two-wire cable, 15 feet maximum length.
2. At one end of the cable, connect both wires to the wall
switch or thermostat. At the other end, connect one
wire to TP/TH and one wire to TH, or connect the wall
switch/thermostat to the two male (0.25") terminals on
the left side of the unit. The color of the wires does not
matter.
ODS Pilot
FP2112
Optional Wall
Switch or Remote Receiver
23D8036
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