33W415-1345 / B / 10.22.15EN5.7 OPTIONAL WALL SWITCH50.1AFor ease of accessibility, an optional remote wall switch or millivolt thermostat may be installed in a convenientlocation. Route a 2 strand, solid core millivolt wire from the valve to the wall switch or millivolt thermostat. Therecommended maximum lead length depends on wire size:WIRE SIZE MAX. LENGTH14 gauge (1.8mm) 100 feet (30.5m)16 gauge (1.5mm) 60 feet (18.3m)18 gauge (1.2mm) 40 feet (12.2m)Disconnect the existing wires from terminals 1 and 3 (from theON/OFF switch) and replace with the leads from the wall switch / millivolt thermostat.312! WARNINGDO NOT CONNECT EITHER THE WALL SWITCH, THERMOSTAT OR GAS VALVE DIRECTLY TO 110VOLT ELECTRICITY.6.0 FRAMING! WARNINGRISK OF FIRE!IN ORDER TO AVOID THE POSSIBILITY OF EXPOSED INSULATION OR VAPOUR BARRIER COMINGIN CONTACT WITH THE APPLIANCE BODY, IT IS RECOMMENDED THAT THE WALLS OF THEAPPLIANCE ENCLOSURE BE “FINISHED” (IE: DRYWALL / SHEETROCK), AS YOU WOULD FINISHANY OTHER OUTSIDE WALL OF A HOME. THIS WILL ENSURE THAT CLEARANCE TOCOMBUSTIBLES IS MAINTAINED WITHIN THE CAVITY.DO NOT NOTCH THE FRAMING AROUND THE APPLIANCE STAND-OFFS. FAILURE TO MAINTAINAIR SPACE CLEARANCE MAY CAUSE OVER HEATING AND FIRE. PREVENT CONTACT WITHSAGGING OR LOOSE INSULATION OR FRAMING AND OTHER COMBUSTIBLE MATERIALS. BLOCKOPENING INTO THE CHASE TO PREVENT ENTRY OF BLOWN-IN INSULATION. MAKE SUREINSULATION AND OTHER MATERIALS ARE SECURED.WHEN CONSTRUCTING THE ENCLOSURE ALLOW FOR FINISHING MATERIAL THICKNESS TOMAINTAIN CLEARANCES. FRAMING OR FINISHING MATERIAL CLOSER THAN THE MINIMUMSLISTED MUST BE CONSTRUCTED ENTIRELY OF NON-COMBUSTIBLE MATERIALS. MATERIALSCONSISTING ENTIRELY OF STEEL, IRON, BRICK, TILE, CONCRETE, SLATE, GLASS OR PLASTERS,OR ANY COMBINATION THEREOF ARE SUITABLE. MATERIALS THAT ARE REPORTED AS PASSINGASTM E 136, STANDARD TEST METHOD FOR BEHAVIOUR OF MATERIALS IN A VERTICAL TUBEFURNACE AT 1382° F (750°C) AND UL763 SHALL BE CONSIDERED NON-COMBUSTIBLEMATERIALS.MINIMUM CLEARANCE TO COMBUSTIBLES MUST BE MAINTAINED OR A SERIOUS FIRE HAZARDCOULD RESULT.THE APPLIANCE REQUIRES A MINIMUM ENCLOSURE HEIGHT. MEASURE FROM THE APPLIANCEBASE.IF STEEL STUD FRAMING KITS WITH CEMENT BOARD ARE PROVIDED, OR SPECIFIED IN THEINSTALLATION INSTRUCTIONS. THEY MUST BE INSTALLED.FINISHING MUST BE DONE USING A NON-COMBUSTIBLE MATERIAL EXTENDING FROM THE TOPOF THE APPLIANCE SUCH AS NON-COMBUSTIBLE BOARD, CERAMIC TILE, MARBLE, ETC. DONOT USE WOOD OR DRYWALL.ANY FIRE RATED DRYWALL IS NOT ACCEPTABLE.71.1B