Desa GWN30TA, GWP20TA, GWP30TA Correct all leaks at once, Pressure Testing Heater Gas Connections

Page 14

INSTALLATION

Continued

3.Check all joints from gas meter for natural gas (see Figure 17) or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 18). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Pressure Testing Heater Gas Connections

1.Open equipment shutoff valve (see Figure 16, page 13).

2.For natural gas open main gas valve located on or near gas meter. For pro- pane/LP gas open propane/LP supply tank valve.

3.Make sure control knob of heater is in the OFF position.

4.Check all joints from equipment shutoff valve to thermostat gas valve (see Figure 17 or 18). Apply a noncorrosive leak de- tection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, start- ing on page 15). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 16).

8.Replace front panel.

Thermostat Gas Valve

Gas

Meter

Equipment Shutoff Valve

Figure 17 - Checking Gas Joints for

Natural Gas

Thermostat Gas Valve

Propane/LP

Supply Tank

Equipment Shutoff Valve

Figure 18 - Checking Gas Joints for

Propane/LP Gas

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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 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