Desa CDR3924NT Operating Heater, For Your Safety Read Before Lighting, Lighting Instructions

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OPERATING HEATER

FOR YOUR SAFETY READ

BEFORE LIGHTING

WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life.

A.This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.

B.BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electric switch; do not use any phone in your building.

Immediately call your gas supplier from a neighborʼs phone. Follow the gas supplierʼs instructions.

If you cannot reach your gas supplier, call the fire department.

C.Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, donʼt try to repair it, call a qualified service tech- nician or gas supplier. Force or attempted repair may result in a fire or explosion.

D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING

INSTRUCTIONS

WARNING:

If fireplace has glass doors, never operate this heater with glass doors closed. If you oper- ate heater with doors closed, heat buildup inside fireplace will cause glass to burst. Also iffireplaceopeninghasventsat the bottom, you must open the vents before operating heater.

You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before run- ning heater.

NOTICE: During initial operation of new heater, burning logs will give off a paper-burning smell. Orange flame will also be pres- ent. Open damper or window to vent smell. This will only last a few hours.

Note: Home owners generally prefer to op- erate their heater with the chimney damper closed. This will put all the heat into the room. However, there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive. You can open the chimney damper (if you have one) fully or partially to release some of the heat.

WARNING: Damper handle will be hot if heater has been running.

1.STOP! Read the safety information column 1.

2.Make sure equipment shutoff valve is fully open.

3.Turn control knob clockwise to the OFF position.

4.Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information, column 1. If you donʼt smell gas, go to the next step.

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Contents What to do if YOU Smell GAS Thermostat Models CDR3924NT and CDR3924PTTable of Contents Safety Information Local Codes Product Features Product IdentificationAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationUnusually Tight Construction Confined and Unconfined SpaceVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Check GAS TypeInstallation and Clearances for VENT-FREE Operation LogRear WidthDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply External Regulator With Vent Pointing DownChecking GAS Connections Propane/LP FromNatural From Gas Test Pressures In Excess Of 1/2 Psig 3.5 kPaInstalling Logs Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaAttaching Grate to Base Assembly Adding Lava RockOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureThermostat Control Operation Technical Service Inspecting BurnersPilot Flame Pattern Burner Flame PatternsBurner Injector Holders and Pilot AIR Inlet Holes Cleaning MaintenanceLogs Troubleshooting Observed Problem Possible Cause RemedyMaintenance, Cold Minute Air in gas line Operate burners until air is Gas leak. See Warning Optional Positioning Thermostat Sensing Bulb For Masonry and FACTORY- Built Metal FireplaceSpecifications Replacement PartsService Hints AccessoriesIllustrated Parts Breakdown Models CDR3924PT and CDR3924NTParts List Keep this Warranty Warranty InformationLimited Warranty Comfort Glow VENT-FREE GAS LOG Heaters