Desa Vanguard VMH26TPC Owner's Operation And Installation Manual

Also see for Vanguard VMH26TNC: OWNER'S OPERATION AND INSTALLATION MANUAL

Contents

www.desatech.com113111-01B 21OPERATING FIREPLACEContinuedOPERATINGBLOWERThis blower has three settings: ON, OFF, andAUTO. In the ON position, the blower will op-erate constantly. In the OFF position, theblower will not operate. In the AUTO position,the blower will start when the thermostat sensesa sufficient increase in firebox temperature.Note: Your fireplace and thermostat blowerwill not turn on and off at the same time. Thefireplace may run for several minutes beforethe blower turns on. After the heater modulatesto the pilot position, the blower will continue torun. The blower will shut off after the fireboxtemperature decreases.Note: It is safe to operate fireplace with blowerturned off. However, the blower helps distrib-ute heated air from the fireplace.OFFONAuto/Off/OnSwitchFigure 31 - Auto/Off/On SwitchINSPECTING BURNERCheck pilot flame pattern and burner flame pat-tern often.PILOT FLAME PATTERNFigure 32 shows a correct pilot flame pattern. Fig-ure 33 shows an incorrect pilot flame pattern. Theincorrect pilot flame is not properly heating thethermocouple. This will cause the thermocoupleto cool. When the thermocouple cools, the fire-place will shut down.If pilot flame pattern is incorrect, as shown in Fig-ure 33• turn fireplace off (see To Turn Off Gas to Ap-pliance, page 20)• see Troubleshooting, pages 23 through 26Note: The pilot flame on natural gas units willhave a slight curve, but flame should be blue andhave no yellow or orange color.ThermocouplePilot BurnerFigure 32 - Correct Pilot Flame Pattern(Propane/LP Shown)ThermocouplePilot BurnerFigure 33 - Incorrect Pilot Flame Pattern(Propane/LP Shown)BURNER FLAME PATTERNFigure 34 shows a correct burner flame pattern.Figure 35 shows an incorrect burner flame pat-tern. The incorrect burner flame pattern showssporadic, irregular flame tipping. The flame shouldnot be dark or have an orange/reddish tinge.Note: When using the fireplace the first time, theflame will be orange for approximately one houruntil the log cures.If burner flame pattern is incorrect, as shown inFigure 35• turn fireplace off (see To Turn Off Gas to Ap-pliance, page 20)• see Troubleshooting, pages 23 through 26Figure 34 - Correct Burner Flame PatternFigure 35 - Incorrect Burner FlamePattern