Desa CCL3930NT(A), CLD3018N, CLD3924NT Minimum Noncombustible Material Clearances, If Using Mantel

Page 8

CGS2718N, CGS3124N, CLD3018N,

CLD3924NT, and CCL3930NT(A)

UNVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

NOTICE: You may use non-ther- mostat heater as a vented prod- uct. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 10

Minimum Noncombustible Material Clearances

If Using Mantel

You must have noncombustible material(s) above the fireplace opening. Noncombus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible mate- rial must extend at least 8 inches up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" model only). Even if non- combustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7 on page 9 for minimum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 10.

If Not Using Mantel

Note: If using a mantel, proceed to If Using Mantel. If not using a mantel, follow the information below.

You must have noncombustible material(s) above the fireplace opening. Noncombus- tible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" model only). See Figure 5 at right for mini- mum clearances.

IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 10.

Noncombustible

Requirements for

Material Distance (A)

Safe Installation

 

 

12" or more

Noncombustible material okay.

Between 8" and 12"

24" Model: Install fireplace hood acessory (GA6050,

 

GA6052, or GA6053, see Accessories, page 25).

 

18" Model: Noncombustible material okay.

Less than 8"

Noncombustible 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

8

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Contents Patent Pending What to do if YOU Smell GASWinchester Oak Model Shown Safety Information Unvented Natural GAS LOG HeaterProduct Features Product IdentificationLocal Codes UnpackingAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined Space and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsMinimum Wall and Ceiling Clearances see Figure InstallationCheck GAS Type Minimum Noncombustible Material Clearances If Using MantelIf Not Using Mantel Determining Minimum Mantel Clearance Mantel ClearancesFloor Clearances Installing Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Chimney Minimum Permanent Height ft Flue Opening sq. insConnecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorPressure Testing gas Supply Piping system Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2 PsigInstalling Logs on Models CGS2718N and CGS3124N Installing Back LogInstalling Logs on Models CLD3018N and CLD3924NT Damage or personal injuryInstalling Logs on Model CCL3930NTA Front Log #1 Grate Fingers Grate BaseLighting Instructions For Your Safety Read Before LightingOperating Heater Manual Lighting Procedure Variable Control OperationTo Turn OFF GAS To Appliance Shutting Off HeaterInspecting Burners Thermostat Control OperationPilot Flame Pattern Burner Primary AIR HolesCleaning and Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleMain Burner ODS/PILOT and BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement atOptional POSI- Tioning of THER- Mostat Sensing Bulb For Masonry and Factory- built Metal FireplaceSpecifications Technical ServiceService Hints Replacement PartsAccessories Parts CentralManual Shutoff Fireplace HoodIllustrated Parts Breakdown Parts List CGS2718N CGS3124NUnvented Natural GAS LOG Heater CLD3018N CLD3924NT KEY CLD3924NT Part Number Description QTY CCL3930NTA CCL3930NT CCL3930NTA CCL3930NT CCL3930NTAWarranty Information
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