Desa GWN30TA, GWP20TA, GWP30TA, GWN20TA, WMP20A, WMN20A Installation Items, Locating Heater

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INSTALLATION

Continued

INSTALLATION ITEMS

Before installing heater, make sure you have the items listed below.

•for propane/LP gas, external regulator (supplied by installer)

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•equipment shutoff valve *

•ground joint union

•sediment trap

•tee joint

•pipe wrench

•for natural gas, test gauge connection*

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alter- native to test gauge connection. The optional CSA design-certified equipment shutoff valve can be purchased from your dealer. See Ac- cessories, page 26.

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 moisture 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 Combustion and Ventila- tion, page 5. If high humidity is experienced, a dehumidifier may be used to help lower the water vapor content in the air.

LOCATING HEATER

This heater is designed to be mounted on a wall.

WARNING: Maintain the minimum clearances shown in Figure 4. If you can, provide greater clearances from floor, ceiling and joining wall.

You can locate heater on floor, away from a wall. An optional floor mounting stand is need- ed. Purchase the floor mounting stand from your dealer. See Accessories, page 26.

WARNING: Never install the heater

•in a bedroom or bathroom

•in a recreational vehicle

•where curtains, furniture, clothing or other flammable objects are less than 36" from the front, top or sides of the heater

•as a fireplace insert

•in high traffic areas

•in windy or drafty areas

CAUTION: If you install the heater in a home garage

•heater pilot and burner must be at least 18" above floor

•locate heater where moving vehicle will not hit it

For convenience and efficiency, install heater

•where there is easy access for operation, inspection and service

•in coldest part of room

An optional fan kit is available from your dealer. See Accessories, page 26. If planning to use fan, locate heater near an electrical outlet.

 

CEILING

6"

36"

Minimum

Minimum

From

 

Sides Of

 

Heater

 

Right

Side

Left

Side

Minimum To

Top Surface

Of Carpeting,

2" Tile Or Other

Combustible

FLOORMaterial

Figure 4 - Mounting Clearances As

Viewed From Front of Heater

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Contents What to do if YOU Smell GAS Models GWN20TA, GWP20TA, GWN30TA, GWP30TA, WMN20a, WMP20aTable of Contents Safety InformationSafety Information Safety Information Product FeaturesLocal Codes UnpackingAir For Combustion Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Installation Ventilation AIRCheck GAS Type Ventilation Air From Inside BuildingInstallation Installation ItemsLocating Heater This heater is designed to be mounted on a wallInstalling Heater to Wall 30,000 Btu/Hr Models 20,000 Btu/Hr ModelsAttaching To Wall Stud Method Attaching To Wall Anchor MethodInstalling Bottom Mounting Screws Mounting heater to floor With optional floor kitHeater Wall Mounting Base Feet to HeaterConnecting to GAS Supply Typical Inlet Pipe DiametersChecking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaPressure Testing Heater Gas Connections Correct all leaks at onceFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Do not try to light any applianceManual Lighting Procedure Operating HeaterTo Turn OFF GAS To Appliance Thermostat Control OperationBurner Flame Pattern Inspecting HeaterPilot Flame Pattern Cleaning Maintenance ODS/PILOT and BurnerBurner Pilot Air Inlet CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Observe minimum installa Slight smoke or odor duringBlocked Burner orificeGas leak. See Warning Statement aboveSpecifications Service HintsReplacement Parts Technical ServiceIllustrated Parts Breakdown Models WMN20A, WMP20A, GWN20TA, GWP20TA, GWN30TA and GWP30TAParts List NJF 8CAccessories Equipment Shutoff Valve GA5010Base Kit GA4550 Electronic ignitor Kit GA435 Not ShownParts Centrals Warranty Information Keep this WarrantyModel Serial No Date of Purchase Industrial Drive P.O. Box 119344-01 Rev. B
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