Desa VFN24MV VFN30MV installation manual Cleaning and Maintenance, Specifications, Logs

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FIREPLACE MANUFACTURERS INCORPORATED UNVENTED NATURAL GAS LOG HEATER

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burners, and cir- culating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint, and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will cre-

4.Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint, or pet hair with a soft cloth or vacuum cleaner nozzle.

5.Blow air into the primary air holes on the injector holder.

6.In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 28). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.

LOGS

If you remove logs for cleaning, refer to Installing Logs, page 13, to properly re- place logs.

Replace log(s) if broken or chipped (dime-sized or larger).

Injector Holder

Ports/Slots

Burner

Tube

Primary Air Inlet

Holes

Figure 27 - Injector Holder On Outlet Burner Tube

Pilot Air Inlet

Hole

Pilot Assembly

Figure 28 - Pilot Inlet Air Hole

ate soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a quali- fied service person.

We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recom- mend using compressed air no greater than 30 PSI. Your local computer store, hard- ware store, or home center may carry com- pressed air in a can. You can use a vacuum cleaner in the blow position. If using com- pressed air in a can, please follow the direc- tions on the can. If you don't follow direc- tions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 27).

3.Blow air through the ports/slots and holes in the burner.

SPECIFICATIONS

 

18" Variable

24" Variable

30" Variable

 

Manually-

Manually-

Manually-

 

Controlled

Controlled

Controlled

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

26 lbs.

30 lbs.

34 lbs.

* For purpose of input adjustment

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105070

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Contents Also DESIGN-CERTIFIED AS a Vented Decorative Appliance What to do if YOU Smell GASSafety Information Product Features Local CodesUnpacking Product IdentificationAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Installation ClearancesCheck GAS Type Vent-Free Operation OnlyIf Using Mantel Minimum NonCombustible Material ClearancesDetermining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Connecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Installing Logs Installing Front Logs #1L and #1ROperating Heater For Your Safety Read Before LightingLighting Instructions Inspecting Burners Cleaning and Maintenance SpecificationsCleaning Burner Injector Holder and Pilot AIR Inlet Hole LogsTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Illustrated Parts Breakdown Variable Manually Controlled Models VFN18MV VFN24MV VFN30MVVariable MANUALLY- Controlled Models Parts ListVFN18MV VFN24MV VFN30MV Service Hints Technical ServiceReplacement Parts Accessories105070 Warranty Information