Desa VYM27NR/PR, FVFM27NR/PR Check GAS Type, Installation Clearances, LOG Sizing Requirements

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OWNER’S MANUAL

INSTALLATION

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your pri- mary heating system. Do not in- stall this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circu- late the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source.

WARNING: A qualified ser- vice person must install heater. Follow all local codes.

NOTICE: State or local codes may only allow operation of this appli- ance in a vented configuration. Check your state or local codes.

WARNING: Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes and loose paint by a quali- fied chimney cleaner. Creosote will ignite if highly heated. A dirty chimney flue may create and dis- tribute soot within the house. In- spect chimney flue for damage. If damaged, operate heater with flue damper closed.

WARNING: Seal any fresh air vents or ash clean-out doors lo- cated on floor or wall of fireplace. If not, drafting may cause pilot outage or sooting. Use a heat- resistant sealant. Do not seal chimney flue damper.

WARNING: Never install the heater

in a bedroom or bathroom un- less installed as a vented ap- pliance, see page 10

in a recreational vehicle

where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the heater

in high traffic areas

in windy or drafty areas

CAUTION: This heater cre- ates warm air currents. These currents move heat to wall sur- faces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning flu- ids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors.

IMPORTANT: Vent-free heaters add mois- ture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Com- bustion and Ventilation, pages 4 through 6.

CHECK GAS TYPE

Use only the correct type of gas (natural or propane/LP). If your gas supply is not the correct gas type, do not install heater. Call dealer where you bought heater for proper type heater.

INSTALLATION AND

CLEARANCES

(Vent-Free Operation Only)

WARNING: Maintain the mini- mum clearances. If you can, pro- vide greater clearances from floor, ceiling, and adjoining wall.

MINIMUM FIREPLACE

CLEARANCE TO

COMBUSTIBLE MATERIALS

 

Log Size

Side Wall

Ceiling

 

 

 

 

27"

16"

42"

 

 

 

 

LOG SIZING REQUIREMENTS

Log

Minimum Firebox

Size

Height

Depth

Width

 

 

 

 

27"

17"

19"

32"

 

 

 

 

Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127-listed manufactured fireplace, or listed vent-free firebox.

Minimum Clearances For Side

Combustible Material, Side Wall,

and Ceiling

A.Clearances from the side of the fire- place cabinet to any combustible ma- terial and wall should follow diagram in Figure 4.

Example: The face of a mantel, book- shelf, etc. is made of combustible ma- terial and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace cabinet (see Figure 4).

Note: When installing your gas logs into a manufactured firebox, follow firebox manufacturer’s instructions for minimum clearances to combustible materials.

B.Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches.

Example

*

*Minimum 16 inches from Side Wall

Figure 4 - Minimum Clearance for Com- bustible to Wall

Continued

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For more information, visit www.desatech.com

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualFLAME-MAX VYM27NR/PR FVFM27NR/PRFLAME-MAX Unvented GAS LOG Heater Safety InformationProduct Identification Product FeaturesRemote Control AccessoriesConfined and Unconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside BuildingMinimum Fireplace Clearance to Combustible Materials InstallationInstallation Clearances Check GAS TypeMinimum Noncombustible Material Clearances Determining Minimum Mantel Clearance Determining Minimum Mantel Clearance When using a HoodMantel Clearances Floor ClearancesInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Supply Connecting to GASChecking GAS Pressure Testing Gas Supply Piping SystemConnections Pressure Testing Heater Gas Connections Installing LogsOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureOptional Remote Operation Pilot Flame Pattern Inspecting BurnersCleaning and Maintenance Observed Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement at Technical Service Wiring Diagram Replacement PartsSpecifications Service HintsVYM27NR FVFM27NR VYM27PR FVFM27PR Illustrated Parts BreakdownParts Available not Shown Parts ListCleaning KIT GCK WALL-MOUNT Thermostat Switch GWMT1Receiver and HAND- Held Remote Control KIT Ghrc WALL-MOUNT ON/OFF Switch GWMS2Owners Registration Form Postage Required 108382 Warranty Information