Desa (V)K36N SERIES Owner's Operation And Installation Manual

111923-01BFor more information, visit www.desatech.comFor more information, visit www.desatech.com26OPERATING OPTIONALBLOWER ACCESSORYLocate the blower controls by opening the lower louver panel onthe fireplace. Blower controls are located on the left side of theswitch bracket to the left just inside the louver panel.The BK manual blower and the BKT thermostatically-con-trolled blower have an ON setting and an OFF setting. Theblower will only run when the switch is in the ON position. In theOFF position, the blower will not operate.Note for BKT Only: If you are using BKT blower with optionalthermostat (wall mounted or remote control) for the fireplace,your fireplace and blower will not turn on and off at the sametime. The fireplace may run for several minutes before theblower turns on. After the heater modulates to the pilot position,the blower will continue to run. The blower will shut off after thefirebox temperature decreases.The blower helps distribute heated air from the fireplace.Periodically check the louvers of the firebox and remove anydust, dirt, or other obstructions that will hinder the flow of air.OPERATING OPTIONAL GWMT1WALL MOUNTED THERMOSTATLight the fireplace as instructed in Lighting Instructions onpage 24. Set wall thermostat to desired temperature.This thermostat has been electronically calibrated at the factoryand requires no adjustment or leveling.Upon installation, the thermostat must be allowed to stabilize atroom temperature for a minimum of 30 minutes for properoperation.To turn the fireplace off, adjust thermostat to the lowest settingand turn the gas control knob back to PILOT. The pilot willremain lit.IMPORTANT: To turn the pilot off, turn the gas control knobon the heater to the OFF position.WARNING: Do not connect the thermostat to apower source. Electrical shock and/or a fire hazardwill occur.INSPECTING BURNERSCheck pilot flame pattern and burner flame patterns often.PILOT ASSEMBLYThe pilot assembly is factory preset for the proper flame height.Alterations may have occurred during shipping and handling. Calla qualified service person to readjust the pilot if necessary.The height of the thermopile must be 3/8" to 1/2" above the pilotflame as shown in Figure 54. The thermocouple must be at a heightof about 1/8" above the pilot flame. The flame from the pilot burnermust extend beyond both the thermocouple and thermopile.If you pilot assembly does not meet these requirements:• turn fireplace off (see To Turn Off Gas to Appliance, page 24)• see Troubleshooting, pages 28 through 30BURNER FLAME PATTERNBurner flames will be steady; not lifting or floating. Flame patternswill be different from unit to unit and will vary depending oninstallation type and weather conditions.If the vent configuration is installed incorrectly, the flames will liftor "ghost". This can be dangerous. Inspect the flames after installa-tion to ensure proper installation and performance.Figure 55 shows a typical flame pattern.If burner flame pattern differs from that described:• turn fireplace off (see To Turn Off Gas to Appliance, page 24)• see Troubleshooting, pages 28 through 30ThermocoupleThermopile1/8"Pilot BurnerPiezoIgnitorFigure 54 - Pilot Assembly3/8" to 1/2"OPERATING FIREPLACEContinuedOPERATING FIREPLACEOperating Optional GWMT1 Wall Mounted ThermostatOperating Optional Blower AccessoryINSPECTING BURNERSPilot AssemblyBurner Flame PatternFigure 55 - Typical Flame Pattern