OWNER’S MANUAL
FIREPLACE INSTALLATION
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INSTALLING OPTIONAL WALL MOUNTED THERMOSTAT - GWMT1, GWMS2
WARNING: Installation must be done by a qualified installer familiar with low voltage wiring procedures.
WARNING: Do not connect this thermostat to any electrical source! Electrical shock and/or fire hazard will occur.
1.Open lower door panel. The valve is attached to the underside of the fire- box assembly.
2.Disconnect from the valve the wires running from the ON/OFF switch.
3.Connect one terminal of the wire for the wall thermostat to the THTP termi- nal on the valve. Connect remaining wire terminal to the TH terminal on the valve. Make sure that the wire termi- nals are in the positions on the unit as pictured in Figure 34. If wires are not connected as shown the thermostat will not work.
4.Route the wire to a convenient loca- tion to mount your thermostat (no out- side wall). IMPORTANT: The wire must not exceed 25 feet in length.
The thermostat should be mounted 54" above the floor in a location where there is good air circulation. Avoid heat sources such as lamps, direct sun- light, fireplace, or heat and air condi- tioning ducts.
5.Gently remove the cover of the ther- mostat from the base. Grasp the sides of the cover firmly and pull to separate from the base.
6.Feed the electrical wires through the rectangular slots (from the back) on each side of the base (see Figure 35).
WARNING: Do not connect this thermostat to a power source. Electrical shock and/or fire hazard will occur.
7.Connect one bare wire end to each ter- minal (“W” and “R”) of the thermostat base (see Figure 36).
8.Install the base to the wall with screws provided with thermostat.
9.Move the temperature adjustment back and forth to insure the bimetal is free from restrictions.
10.Replace the cover onto the base. (Upon installation, the thermostat must be al- lowed to stabilize at room temperature for a minimum of 30 minutes for proper operation.)
11.Set the temperature adjustment to the desired setting. This thermostat has been electronically calibrated at the factory. No adjustment or leveling is necessary.
Feed wires through rectangular slots
Figure 35 - Back View of Thermostat Base
Terminal "W"
W
Terminal "R"
R
Figure 36 - Thermostat Base Terminal "W" and "R"
To Control
Switch or
Optional
Accessory
Figure 34 - Control Valve Terminals
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