Desa CLD3924NT Installing Damper Clamp Accessory for Vented Operation, Installation Items Needed

Page 10

CGS2718N, CGS3124N, CLD3018N,

CLD3924NT, and CCL3930NT(A)

UNVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

Damper Clamp

Damper

Clamp

Damper

Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible 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 clear-

ance to combustibles requirements for

vent-free operation.

Damper

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

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 25). 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.

Chimney

Minimum Permanent

Height (ft.)

Flue Opening (sq. ins.)

 

 

6' to 15'

39 sq. inches

15' to 30'

29 sq. inches

 

 

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

 

 

INSTALLING HEATER BASE ASSEMBLY

WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor to allow access to heater control panel. This will in- sure adequate air flow and guard against sooting. Raise fireplace floor with noncombustible mate- rial. Make sure material is secure.

CAUTION: Do not pick up heater base assembly by the burner. This could damage heater. Only handle base assem- bly by grates.

CAUTION: Do not remove the metal Data Plates attached to the heater base assembly. The Data Plates contain important warranty information.

IMPORTANT: Make sure the heater burners are level. If heater is not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket.

Installation Items Needed

•hardware package (provided with heater)

•approved flexible gas hose (not provided) (if allowed by local codes)

•sealant (resistant to propane/LP gas, not provided)

•electric drill with 3/16" drill bit

1.Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator. Connect approved flex- ible gas hose to gas regulator of heater (see Figure 11, page 12).

IMPORTANT: Hold gas regulator with wrench when connecting flexible gas hose.

2.Locate masonary screws in hardware package.

3.Position heater base assembly in fireplace.

4.Mark screw locations through holes in mounting brackets (see Figure 12, page 12). If installing in a brick-bottom fire- place, mark screw locations in mortar joint of bricks.

5.Remove heater base from fireplace.

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Contents Winchester Oak Model Shown What to do if YOU Smell GASPatent Pending Safety Information Unvented Natural GAS LOG HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined Space and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Building Ventilation AIRVentilation Air From Inside Ventilation Air From OutdoorsCheck GAS Type InstallationMinimum Wall and Ceiling Clearances see Figure If Not Using Mantel If Using MantelMinimum Noncombustible Material Clearances Floor Clearances Mantel ClearancesDetermining Minimum Mantel Clearance Installation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Chimney Minimum Permanent Height ft Flue Opening sq. insConnecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorChecking GAS Connections Pressure Testing gas Supply Piping systemPressure Testing Heater 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 BaseOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureVariable Control Operation Shutting Off HeaterPilot Flame Pattern Inspecting BurnersThermostat Control Operation Burner Primary AIR HolesMain Burner Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole 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 FireplaceService Hints SpecificationsTechnical Service Replacement PartsManual Shutoff AccessoriesParts Central 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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