Desa NATURAL GAS LOG HEATER Installing Damper Clamp Accessory for Vented Operation

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INSTALLING

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

Note: When used as a vented heater, appliance must be installed only in a solid- fuel burning fireplace with a working flue and constructed of non combustible material.

If your heater is a manually controlled model, you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode.

1.The fireplace does not meet the clearance to combustibles requirements for vent-free operation.

2.State or local codes do not permit vent-free operation.

3.You prefer vented operation.

If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 33). This will insure vented operation (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.

See chart below for minimum permanent flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times.

Area of Various Standard Round Flues

Diameter (ins.)	Area (sq. ins.)

5"	20 sq. inches
6"	29 sq. inches
7"	39 sq. inches
8"	51 sq. inches

Chimney	Minimum Permanent
Height (ft.)	Flue Opening (sq. ins.)

6' to 15'	39 sq. inches
15' to 30'	29 sq. inches

Damper

Clamp

Damper

Damper

Clamp

Damper

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

101308

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Information SafetySafety Device Local Codes Unpacking Product FeaturesProduct Identification OperationVentilation AIR for CombustionProviding Adequate Ventilation Determining AIR Flow for Heater Location AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Combustion AIR forVentilation AIR Check GAS Type InstallingLOG Sizing Requirements To Combustible MaterialsAnces from floor, ceiling, and adjoining wall Minimum Wall and Ceiling Clearances see FigureMinimum Non Combustible Material Clearances Accessories,For Vented Operation, InstallingFloor Clearances Attaching Damper Clamp Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Installing Heater Base AssemblyAttaching Flexible Gas Hose to Heater Gas Regulator Installation Items Needed Connecting to GAS SupplyGas Connection Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig Pressure Testing Heater Gas ConnectionsInstalling Front Log Installing LogsOperating Heater For Your Safety Read Before LightingHeater OperatingThermostat-Controlled Models Only Operating Heater Models Pilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern ODS/PILOT and Burners Trouble ShootingLogs TROUBLE- Shooting Cleaning and MainteTrouble Gas leak. See Warning Positioning OptionalSensing Bulb For Masonry Factory-built Metal Fireplace Optional Positioning Thermostat Sensing BulbService ServiceTechnical HintsParts Under Warranty Replacement PartsParts Not Under Warranty Valve GA5010 AccessoriesHood GA6050 Hood GA6052Illustrated Parts Break Down Description QTY Parts ListThermostat Controlled Models Parts List 101308 101308 Keep this Warranty Warranty Information