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ELECTRICAL WIRING — MILLIVOLT
WARNING
Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
The Millivolt valve is a self-powered combination gas con-
trol THAT DOES NOT REQUIRE 110VAC TO OPERATE.
ON/OFF Switch or
Optional Wall Switch,
Remote or T-Stat
NOTE: Log switch wires are not fac-
tory connected. Connect log switch
wires to the TH/TP and TH valve
terminals.
Figure 14 -
Wiring Diagram
Monessen • NBST27 Gas Log Set Installation/Owner's Manual • 81D3032 • Rev A • 08/16
TH = 3
TP = 1
TP/TH = 2
Log
Switch
NBST27 Unvented Gas Log Set
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.
ODS Pilot
Millivolt Valve
FP2267
FP2267
millivolt wiring
ODS Pilot
13
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