Desa 103426-01 installation manual Optional Positioning Of Thermostat Sensing Bulb

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OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB

SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS

OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB

For Masonry and Factory- built Metal Fireplace

If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level

3.With 5/16" hex driver or socket, loosen the thermostat screw. Carefully slide the thermostat sensing bulb out of the retaining clamp (see Figure 36).

Note: Do not remove the screw. Make sure you tighten the screw after remov- ing the thermostat sensing bulb.

IMPORTANT: Do not force or bend the thermostat sensing bulb or capillary.

If your fireplace has glass doors, position sensing bulb directly behind door gap on right bottom side (see Figure 39).

Thermostat

Sensing

Bulb

Adhesive- backed Mounting Clip

before the log set comes back on, you may want to reposition the

Capillary

thermostat sensing bulb.

The thermostat sensing bulb is located on the gas valve assembly. This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications. For position- ing the thermostat sensing bulb elsewhere, an adhesive-backed mounting clip has been provided.

Tools needed: 5/16" hex driver or socket

1.Locate the gas valve assembly and ther- mostat sensing bulb (see Figure 34).

Gas Valve

Assembly

Thermostat

Sensing Bulb

Figure 34 - Location of Gas Valve Assembly and Thermostat Sensing Bulb

2. The adhesive-backed mounting clip

Screw Thermostat

Sensing

Retaining Bulb

Clamp

Figure 36 - Removing Thermostat Sensing Bulb

4.The thermostat sensing bulb may be located to the lower right front side of fireplace. Determine location of sens- ing bulb, but do not mount sensing bulb until step 5. If you have a masonry fire- place, see Figure 37 for location.

ThermostatFor Masonry and Factory- built Metal Fireplace

Sensing

Bulb

Adhesive- backed Mounting Clip

Figure 37 - Locating Thermostat Sensing Bulb on Masonry Fireplace

If you have a factory-built metal fireplace, see Figure 38 for location.

Glass

Doors

Figure 39 - Installing Thermostat Sensing Bulb behind Glass Doors

5.The mounting clip must be a minimum of 3" from bottom of fireplace to pre- vent crimping of capillary. Once you have decided on a location, clean the area thoroughly. Remove the paper backing from the adhesive on back of mounting clip. Press the clip into the new location so that the thermostat sensing bulb will be positioned verti- cally with the capillary at the bottom (see Figure 40). Slide the thermostat sensing bulb into the clip.

IMPORTANT: Do not crimp capillary.

Thermostat

Sensing Bulb

Adhesive- backed

Capillary Manual background Mounting Clip

Do Not Crimp

Capillary

(see Figure 35) is attached to the ther-

mostat sensing bulb. Remove the ad-

hesive-backed mounting clip.

Figure 35 - Adhesive-backed Mounting Clip

Thermostat

Sensing

Bulb

Adhesive- backed Mounting Clip

Figure 40 - Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom

Figure 38 - Locating Thermostat Sensing Bulb on Factory-built Metal Fireplace

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Contents where not prohibited by state or local codes OWNER’S OPERATION AND INSTALLATION MANUALDESA INTERNATIONAL —WHAT TO DO IF YOU SMELL GASSAFETY INFORMATION UNVENTED NATURAL GAS LOG HEATERWARNINGS Safety Device PRODUCT FEATURESPRODUCT IDENTIFICATION LOCAL CODESPROVIDING ADEQUATE VENTILATION AIR FOR COMBUSTION AND VENTILATIONDETERMINING AIR FLOW FOR HEATER LOCATION Unusually Tight ConstructionVENTILATION AIR ContinuedVentilation Air From Inside Building Ventilation Air From OutdoorsINSTALLATION AND CLEARANCES INSTALLATIONIf Not Using Mantel CHECK GAS TYPEMantel Clearances If Using MantelDetermining Minimum Mantel Clearance INSTALLATIONINSTALLATION Floor ClearancesUNVENTED NATURAL GAS LOG HEATER ContinuedInstallation Items Needed INSTALLING HEATER BASE ASSEMBLYINSTALLATION ContinuedINSTALLATION CONNECTING TO GAS SUPPLYInstallation Items Needed UNVENTED NATURAL GAS LOG HEATERPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemCHECKING GAS CONNECTIONS Test Pressures In Excess Of 1/2 PSIGINSTALLATION INSTALLING LOGS American Oak Design ModelsUNVENTED NATURAL GAS LOG HEATER ContinuedINSTALLATION INSTALLING LOGS Split Oak Design ModelsFigure 22 - Installing Bottom Middle Log Figure 24 - Installing Top Log #4OPERATING HEATER Thermostat-ControlledModels FOR YOUR SAFETYREAD BEFORE LIGHTING LIGHTING INSTRUCTIONSManually-ControlledModels FOR YOUR SAFETY MANUAL LIGHTING PROCEDUREThermostat Controlled Models TO TURN OFF GAS TO APPLIANCEManually-ControlledModels INSPECTING BURNERSVARIABLE CONTROL OPERATION PILOT FLAME PATTERNFRONT BURNER FLAME PATTERN CLEANING AND MAINTENANCEODS/PILOT AND BURNERS LOGSOBSERVED PROBLEM TROUBLESHOOTINGPOSSIBLE CAUSE REMEDYOBSERVED PROBLEM TROUBLESHOOTINGMaintenance, page ContinuedOBSERVED PROBLEM TROUBLESHOOTINGMaintenance, page UNVENTED NATURAL GAS LOG HEATERFor Masonry and Factory- built Metal Fireplace OPTIONAL POSITIONING OF THERMOSTAT SENSING BULBREPLACEMENT PARTS SPECIFICATIONSSERVICE HINTS TECHNICAL SERVICEMANUAL SHUTOFF VALVE - GA5010 ACCESSORIESBLACK FIREPLACE HOOD - GA6050 BRASS FIREPLACE HOOD - GA6052Variable Manually Controlled Models VS18NVB ILLUSTRATED PARTS BREAKDOWN4CFS18NVB VS24NVB CFS24NVB VS30NVB CFS30NVB UNVENTED NATURAL GAS LOG HEATERVariable Manually-ControlledSplit Oak Models PARTS LISTPART NUMBER FOR VS18NVB/CFS18NVBUNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWNPARTS LIST Thermostat-ControlledSplit Oak ModelsPART NUMBER FOR VS18NTAVariable Manually-Controlled Models VL18NV VL24NV ILLUSTRATED PARTS3 BREAKDOWNVL30NV UNVENTED NATURAL GAS LOG HEATERPARTS LIST Variable Manually-ControlledAmerican Oak ModelsPART NUMBER FOR VL18NVUNVENTED NATURAL GAS LOG HEATER Page LIMITED WARRANTY VENT-FREENATURAL GAS LOG HEATERS WARRANTY INFORMATIONNOT A UPC
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