Monessen Hearth TPB24 - Manual (Page 21)

70D0004 21
ELECTRICAL WIRING (MILLI-VOLT)
The milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPER-
ATE.
CONNECTING OPTIONAL WALL SWITCH OR THERMOSTAT
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.
Figure 17 - Wiring Diagram
Note: Log switch wires are not factory connected.
Connect log switch wires to the TH/TP and TH valve terminals as shown.
CAUTION
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation. Verify
proper operation after servicing.
Log Switch
On/Off
Switch or
Optional
Wall
Switch,
Remote or
T-Stat
ODS
Pilot
Milli-volt
Valve
TH = 3
TP = 1
TP/TH = 2
ODS
Pilot