29W415-0098 / H / 03.19.124.5 WALL SWITCH / THERMOSTAT INSTALLATIONFor ease of accessibility, an optional remove wall switch or millivolt thermostat may be installed in a convenientlocation. Route 2 strand solid core millivolt wire from the gas appliance to the wall switch/millivolt thermostat.The recommended maximum lead length depends on the wire size:WIRE SIZE MAX. LENGTH14 gauge 100 feet16 gauge 60 feet18 gauge 40 feetGDS50: Disconnect the existing wires from terminals 1 and 3 (from the on/off switch) and replace with theleads from the wall switch/millivolt thermostat / remote receiver.GS50: Disconnect the existing on/off switch wire from terminal 1 on the valve and the black switch wire fromthe terminal block. Replace each connection using the wires from the wall switch/millivolt thermostat.When opening the fire viewing door, a simple procedure mustbe followed in order to not damage the door. First open thevalve control door. Next open both side doors fully. Pull the latchhandles towards you and release each catch. The door may nowbe safely opened. To close the door, repeat in reverse order.There may be instances that require adjustment of the doorlatches to ensure a tighter seal. To do this simply loosen and tighten each catch until both latches snap closedwhen securing the door.HANDLECATCHIn Canada, mobile home installation may be vented horizontally or vertically. In the United States, it may onlybe installed vertically, see "VERTICAL VENTING" or "HORIZONTAL AIR TERMINAL INSTALLATION" sectionfor installation.The appliance is equipped with two 5/16" diameter holes located near each corner of the base. For mobilehome installations, the appliance must be fastened in place. Use #10 screws, inserted through the holes in thebase to secure. It is recommended that the appliance be secured in all installations.FIRE VIEWINGDOORVALVE CONTROL DOORSIDEDOORSIDEDOORCATCH /HANDLE4.6 MOBILE HOME INSTALLATION5.0 FINISHING5.1 DOOR OPENING AND CLOSING