Desa WMP20, GP30 GN30T, GWP20 GWN20T Check GAS Type, Installation Items, Locating Heater

Page 7

INSTALLATION

Check Gas Type

Installation Items

Locating Heater

7

INSTALLATION

NOTICE: This heater is intended for use as supple- mental heat. Use this heater along with your primary heating system. Do not install 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 circulate 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 service person must in- stall heater. Follow all local codes.

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 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

•test gauge connection *

•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 alternative to test gauge connection. The optional CSA design-certified equipment shutoff valve can be purchased from your dealer. See Accessories, page 27.

WARNING: Never install the heater

•in a bedroom or bathroom

•in a recreational vehicle

•where curtains, furniture, clothing, or other flam- mable objects are less than 36 inches from the front, top, or sides of the heater

•as a fireplace insert

•in high traffic areas

•in windy or drafty areas

CAUTION: This heater creates warm air currents. These currents move heat to wall surfaces 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 fluids, 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 venti- lation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, pages 4 through 6. If high humidity is experienced, a dehumidifier may be used to help lower the water vapor content in the air.

CAUTION: If you install the heater in a home garage

•heater pilot and burner must be at least 18 inches 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 27. If planning to use fan, locate heater near an electrical outlet.

CEILING

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 clear- ances from floor, ceiling, and joining wall.

You can locate heater on floor, away from a wall. An optional floor mounting stand is needed. Purchase the floor mounting stand from your dealer. See Accessories, page 27.

36"

6"Minimum Minimum

From

Sides Of Heater

Left

Right

Side

Side

2" Minimum To

Top Surface

FLOOROf Carpeting,

Tile Or Other

Combustible

Material

Figure 4 - Mounting Clearances As Viewed From Front of Heater

For more information, visit www.desatech.com

107884

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Contents What to do if YOU Smell GAS GWN20T, GWP20T GWN30T, GWP30TSafety Information Table of ContentsUnpacking Safety Information Product IdentificationProduct Features Local CodesConfined and Unconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Locating Heater InstallationInstallation Items Check GAS TypeRemoving Front Panel Of Heater Installing Heater to WallAttaching Thermostat Sensing Bulb Mounting BracketAttaching Mounting Bracket To Wall Marking Screw LocationsPlacing Heater On Mounting Bracket Mounting Base Feet to Heater Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Mounting Heater to Floor with Optional Floor KITTypical Inlet Pipe Diameters Connecting to GAS SupplyPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Operating Heater Manual Control Models For Your Safety Read Before LightingLighting Instructions Shutting Off Burner Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS to Appliance Shutting Off HeaterPilot Flame Pattern Inspecting HeaterThermostat Control Operation Cabinet Cleaning MaintenanceCleaning Burner Pilot AIR Inlet Burner Flame PatternObserved Problem Possible Cause TroubleshootingObserved Problem Possible Cause Remedy Gas leak. See Warning statement at Illustrated Parts Breakdown WMN20 WMP20 Description QTY Parts ListGWN30T, GWP30T GGN30T, GP30T GWN20T, GWP20T, GWN30T, GWP30T Technical Service SpecificationsReplacement Parts Service HintsOwners Registration Form Postage Required FAN Kits GA3250T AccessoriesParts Centrals Equipment Shutoff Valve GA5010Warranty Information
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