Desa VS24NR VS30NR, CFS18NR Specifications, Wiring Diagram Replacement Parts, Service Hints

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DESA INTERNATIONAL

UNVENTED NATURAL GAS LOG HEATER

SPECIFICATIONS

 

18" Variable

24" Variable

30" Variable

Btu (Variable)

16,000/26,000

20,000/33,000

21,500/36,000

Type Gas

Natural Gas Only

Natural Gas Only

Natural Gas

Only

 

 

 

Ignition

Piezo

Piezo

Piezo

Manifold Pressure

3.4" W.C.

3.4" W.C.

3.4" W.C.

Inlet Gas

 

 

 

Pressure (in. of water)

 

 

 

Maximum

10.5"

10.5"

10.5"

Minimum*

5"

5"

5"

Shipping Weight

32 lbs.

34 lbs.

36 lbs.

* For purpose of input adjustment

WIRING DIAGRAM

REPLACEMENT PARTS

Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Techni- cal Service Department at 1-800-323-5190.

When calling DESA International, have ready

your name

your address

model number of your heater

how heater was malfunctioning

type of gas used (propane or natural gas)

purchase date

On

 

Off

Receiver

Remote

Thermopile

Black

Red

TPTH TH

Gas Control

TPTH TP

Red

White

Usually, we will ask you to return the defec- tive part to the factory.

PARTS NOT UNDER

WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Department at 1-800-972-7879 for referral information.

When calling DESA International, have ready

model number of your heater

the replacement part number

SERVICE HINTS

When Gas Pressure Is Too Low

pilot will not stay lit

burners will have delayed ignition

heater will not produce specified heat

When Gas Quality Is Bad

pilot will not stay lit

burners will produce flames and soot

heater will backfire when lit

You may feel your gas pressure is too low or gas quality is bad. If so, contact your local natural gas supplier.

TECHNICAL

SERVICE

You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).

You can also visit DESA International’s technical services web site at www.desatech.com.

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASSafety Information Desa International Unvented Natural GAS LOG HeaterProduct Identification Product FeaturesRemote Control Accessories Local CodesUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined 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 InstallationInstallation Clearances Minimum Fireplace Clearance to Combustible MaterialsMinimum Noncombustible Material Clearances If Using MantelIf Not Using Mantel Operation,Floor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearancesInstallation 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 Heater Gas ConnectionsPressure Testing gas Supply Piping system Test Pressures Equal To or Less Than 1/2 PsigInstalling Logs Installing Front Logs #1L and #1ROperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS to Appliance Manual Lighting ProcedureOptional Remote Operation Shows Temperature Setting Pilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern Cleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning and MaintenanceLogs Troubleshooting Observed Problem Possible Cause RemedySee Wiring Diagram, Gas leak. See Warning statement AboveService Hints SpecificationsWiring Diagram Replacement Parts Technical ServiceAccessories Illustrated Parts Breakdown Variable Control CFS18NR VS18NR VS24NR VS30NRParts List CFS18NR VS18NR VS24NR VS30NRWarranty Information International