Desa GWP20TA, GWP30TA, GWN30TA, GWN20TA, WMP20A, WMN20A installation manual Illustrated Parts Breakdown

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Illustrated Parts Breakdown

Models

WMN20A, WMP20A, GWN20TA, GWP20TA, GWN30TA and GWP30TA

			7	15
				15
20				1
				21*
		4*		22*
*Manual Control Models Only		4*
*Manual Control Models Only
**Thermostat Models Only				9
				9
			18*
	12			17
	12
		13
11	10			19*
	10			19*

4**

3	6	18**
3		18**	19**
			19**
	5

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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 Safety Information Product FeaturesLocal Codes UnpackingAir For Combustion Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space 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 OperationInspecting Heater Pilot Flame PatternBurner 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