Desa Tech B, 18, 28 installation manual Checking, Pressure Testing Heater GAS Connections

Page 16

CHECKING

4.

Check all joints of gas supply piping system. Apply mixture of liquid soap and

 

GAS

 

water to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

CONNECTIONS

Test Pressures Equal To or Less Than 1/2 PSIG

Continued

1.

Close manual shutoff valve (see Figure 14).

2.

Pressurize supply piping system by either using compressed air or opening main

 

 

 

gas valve located on or near gas meter.

 

3.

Check all joints from gas meter to manual shutoff valve (see Figure 15). Apply

 

 

mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

 

4.

Correct all leaks at once.

PRESSURE TESTING HEATER GAS CONNECTIONS

1.Open manual shutoff valve (see Figure 14).

2.Open main gas valve located on or near gas meter.

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

4.Check all joints from manual shutoff valve to thermostat gas valve (see Figure 15). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 17 through 19). Check the rest of the internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 19).

8.Replace front panel.

Open

Manual

Shutoff

Valve

Closed

Figure 14 - Manual Shutoff Valve

Thermostat Gas Valve

Gas Meter

Manual

Shutoff

Valve

Figure 15 - Checking Gas Joints

16

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information001 Product Identification Local CodesUnpacking ProductFresh AIR For CombustionVentilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Ventilation Air from OutdoorsInstalling To Wall Installation ItemsCheck GAS Type Locating HeaterLocating Thermostat Sensing Bulb Thermostat Sensing BulbAttaching Thermostat Sensing Bulb Installing Heater to Wall Mounting BracketRemoving Front Panel Of Heater Methods For Attaching Mounting Bracket To WallMarking Screw Locations Attaching Mounting Bracket To WallInstalling Bottom Mounting Screws Placing Heater On Mounting BracketConnecting to GAS Supply Pressure Testing GAS Supply Piping System Checking GASConnections Servicing. Correct all leaks at oncePressure Testing Heater GAS Connections CheckingFor Your Safety Read Before Lighting Operating HeaterPilot Shutting Off Heater Shutting Off Burner Only pilot stays litInspecting Burner Pilot Flame PatternBurner Flame Pattern Correct Burner Flame PatternTrouble Shooting ODS/PILOT and BurnerCabinet Air PassagewaysCleaning and Mainte TroubleTROUBLE- Shooting Ing statement at TopService Hints Service Publications Technical Service18,000 Btu/Hr 28,000 Btu/Hr Models Replacement Parts Parts Under WarrantyParts Not Under Warranty CentralsODS/Pilot Assembly Parts List CGN18TB CGN28TB DescriptionFAN Kits GA2100A, GA3100 GA3100A, and GA3200TA AccessoriesValve GA5010 101808 Warranty Information Keep this Warranty