Desa CGMFN Owner's Operation And Installation Manual

Contents

www.desatech.com119315-01A 1iNsTallaTioNContinuedOPTIONAL WALL MOUNTEDTHERMOSTAT - GWMT1(Remote-Ready Models Only)WARNING: Read and fol-low installation instructions.Installation should be done bya qualified installer familiar withlow-voltage wiring procedures.WARNING: Do not connectthis thermostat to any electricalsource! Electrical shock and/orfire hazard will occur.1. Disconnect jumper wire from control valve(see Figure 23).2. Connect one terminal of 25 ft. wire to “TPTH”terminal on control valve (see Figure 23).3. Connect remaining wire terminal to the “TH”terminal on the control valve. Make sure thatwire terminals are in the positions on your unitas pictured in Figure 23.4. Route the 25 ft. wire to a convenient locationto mount your thermostat (no outside wall).IMPORTANT: The wire may be shortened butmust not be lengthened.The thermostat should be mounted 54" abovethe floor in a location where there is goodair circulation. Avoid heat sources such aslamps, direct sunlight, fireplace or heat andair conditioning ducts.5. Gently remove the cover of the thermostatfrom the base. Grasp the sides of the coverfirmly and pull to separate from the base.6. Feed the electrical wires through the rectangularslots on each side of the base (see Figure 24).WARNING: Do not con-nect the thermostat to a powersource. Electrical shock and/ora fire hazard will occur.7. Connect one bare wire end to each terminal(“W” and “R”) of the thermostat base (seeFigure 25).8. Install the base onto the wall with the providedscrews.Figure 23 - Connecting Wire TerminalsOne terminalof 5 ft. wireControlValveJumper Wire9. Move the temperature adjustment back and forthto insure the bimetal is free from restrictions.10. Replace the cover onto the base. (Upon in-stallation, the thermostat must be allowed tostabilize at room temperature for a minimumof 30 minutes for proper operation).11. Set switch on fireplace to Auto position.12. Set the temperature adjustment to the desiredsetting. This thermostat has been electroni-cally calibrated at the factory. No adjustmentor leveling is necessary.Figure 24 - Back View of ThermostatBaseFeed wires through rectangular slotsWRFigure 25 - Thermostat Base Terminals“W” and “R”Terminal “W”Terminal “R”