Desa CGD3924NR installation manual Minimum Non Combustible Material Clearances

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INSTALLING

Continued

10

Minimum Non Combustible Material Clearances

If Not Using Mantel

Note: If using a mantel, go to page 11. If not using a mantel, follow the informa- tion on this page.

You must have non combustible material(s) above the fireplace opening. Non combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have non combustible material behind it. Non combustible material must extend at least 8" up (for all models). If non combus- tible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See chart below and Figure 5 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open.

Non-Combustible

Requirements for

Material Distance (A)

Safe Installation

 

 

 

12" or more

Non combustible material okay.

Between 8" and 12"

Install fireplace hood accessory (GA6050 or

 

GA6052, see Accessories, page 29).

Less than 8"

Non combustible material must be extended to at

 

least 8". See Between 8" and 12", above. If you

 

cannot extend material, you must operate heater

 

with flue damper open.

 

 

 

Heat Resistant

Material

(A)

Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information Information Operation Local Codes Unpacking Product FeaturesSafety Pilot Piezo Ignition SystemVentilation AIR forProviding Adequate Ventilation Determining AIR Flow for Heater Location AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRTion and ventilation air by one of the methods described Ventilation Air From OutdoorsInstalling Check GAS TypeLOG Sizing Requirements Minimum Fireplace ClearanceMinimum Wall and Ceiling Clearances see Figure Minimum Non Combustible Material Clearances Installing Minimum Non Combustible Material Clearances Log SetMinimum Mantel Clearances When Using Hood Installing Heater Base Assembly Installation Items NeededAttaching Flexible Gas Hose to Heater Connecting to GAS Supply Checking GAS Connections Gas ConnectionInstalling Test Pressures Equal To or Less Than 1/2 PsigInstalling Logs Installing Back Log #1Operating HeaterOperating Heater Control Knob and Ignitor Button LocationOperating Inspecting Burners Has been selectedTrouble Shooting CleaningMaintenance ODS/PILOT and BurnerMaintenance, TROUBLE- ShootingCleaning and Mainte TroubleGas leak. See Warning Service Hints Technical ServiceWiring Diagram Parts Not Under Warranty Parts Under WarrantyParts Central Hood GA6050 AccessoriesValve GA5010 Hood GA6052Illustrated Parts Breakdown CGD3924NR Parts List KEY Part Number Description QTYWarranty Information Keep this Warranty