Desa GWN30TA, WMP20A Accessories, Equipment Shutoff Valve GA5010, Base Kit GA4550, FAN Kits PP100

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Accessories

Purchase these heater accessories from your local dealer. If they can not supply these acces- sories, either contact your nearest Parts Central (see page 27) or call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.

equipment SHUTOFF VALVE GA5010

For all models. Equipment shutoff valve with 1/8" NPT tap.

Base Kit - GA4550

Accessory for “G” models, standard for “W” models. For locating heater on the floor, away from a wall. Complete installation and operating instructions included.

Electronic ignitor Kit - GA435

Not Shown

For all piezo ignitor models. Provides easier

lighting of the pilot.

FAN KITS - PP100

For all models. Provides better heat distri- bution. Makes heater more efficient. Com- plete installation and operating instructions included.

Thermostatically-controlled, blower turns itself on and off as required.

www.desatech.com

119344-01B

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Contents What to do if YOU Smell GAS Models GWN20TA, GWP20TA, GWN30TA, GWP30TA, WMN20a, WMP20aTable of Contents Safety InformationSafety Information Local Codes Safety InformationProduct Features UnpackingUnusually Tight Construction Air For Combustion VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Check GAS Type InstallationVentilation AIR Ventilation Air From Inside BuildingLocating Heater InstallationInstallation Items This heater is designed to be mounted on a wallInstalling Heater to Wall Attaching To Wall Stud Method 30,000 Btu/Hr Models20,000 Btu/Hr Models Attaching To Wall Anchor MethodHeater Wall Installing Bottom Mounting ScrewsMounting heater to floor With optional floor kit 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 onceLighting Instructions For Your Safety Read Before LightingOperating Heater Do not try to light any applianceTo Turn OFF GAS To Appliance Manual Lighting ProcedureOperating Heater Thermostat Control OperationBurner Flame Pattern Inspecting HeaterPilot Flame Pattern Burner Pilot Air Inlet Cleaning MaintenanceODS/PILOT and Burner CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Blocked Observe minimum installaSlight smoke or odor during Burner orificeGas leak. See Warning Statement aboveReplacement Parts SpecificationsService Hints Technical ServiceIllustrated Parts Breakdown Models WMN20A, WMP20A, GWN20TA, GWP20TA, GWN30TA and GWP30TAParts List NJF 8CBase Kit GA4550 AccessoriesEquipment Shutoff Valve GA5010 Electronic ignitor Kit GA435 Not ShownParts Centrals Model Serial No Date of Purchase Warranty InformationKeep this Warranty Industrial Drive P.O. Box 119344-01 Rev. B