Desa 70,000 Btu/Hr Owner's Operation And Installation Manual

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Desa 70,000 Btu/Hr Owner's Operation And Installation Manual Manual pdf 28 page image

108114-01DFor more information, visit www.desatech.comFor more information, visit www.desatech.com28OPTIONAL POSITIONING OFTHERMOSTAT SENSING BULB(THERMOSTAT-CONTROLLED MODELS ONLY)FOR MASONRY AND FACTORY-BUILTMETAL FIREPLACEIf your log set cycles to pilot, but the room temperature drops to alower than ideal comfort level before the log set comes back on, youmay want to reposition the thermostat sensing bulb.The thermostat sensing bulb is located on the left side of the baseassembly. This location allows the thermostat to keep the roomtemperature at an ideal comfort level for most fireplace applica-tions. For positioning the thermostat sensing bulb elsewhere, anadhesive-backed mounting clip is available.1. Locate the gas valve assembly and thermostat sensing bulb(see Figure 49).2. Gently pull thermostat sensing bulb free from the retainingclamp.IMPORTANT: Do not force or bend the thermostat sensingbulb or capillary.3. The thermostat sensing bulb may be located to the lower rightfront side of fireplace. Determine location of sensing bulb, butdo not mount sensing bulb until step 4. If you have a masonryfireplace, see Figure 51 for location.If you have a factory-built metal fireplace, see Figure 52 forlocation.If your fireplace has glass doors, position sensing bulb directlybehind door gap on right bottom side (see Figure 53).4. The mounting clip must be a minimum of 3" from bottom offireplace to prevent crimping of capillary. Once you have de-cided on a location, clean the area thoroughly. Remove the pa-per backing from the adhesive on back of mounting clip. Pressthe clip into the new location so that the thermostat sensing bulbwill be positioned vertically with the capillary at the bottom (seeFigure 54). Slide the thermostat sensing bulb into the clip.IMPORTANT: Do not crimp capillary.Figure 49 - Location of Gas Valve Assembly and ThermostatSensing BulbFigure 50 - Adhesive-backedMounting ClipFigure 51 - Locating ThermostatSensing Bulb on MasonryFireplaceFigure 52 - Locating ThermostatSensing Bulb on Factory-builtMetal FireplaceAdhesive-backedMountingClipThermostat Sensing BulbFigure 53 - Installing ThermostatSensing Bulb behind GlassDoorsFigure 54 - Positioning theThermostat Sensing Bulb inthe Vertical Position with theCapillary at the BottomAdhesive-backedMountingClipGlassThermostat Sensing BulbCapillaryThermostat Sensing BulbDo NotCrimpCapillaryAdhesive-backedMountingClipAdhesive-backedMountingClipThermostat Sensing BulbOPTIONAL POSITIONING OF THERMOSTAT SENSING BULB(THERMOSTAT-CONTROLLED MODELS ONLY)For Masonry and Factory-Built Metal FireplaceGas ValveAssemblyThermostat Sensing Bulb RetainingClamp