Desa Tech CGN20TL, CGN30TL 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

 

water to gas joints. Bubbles forming show a leak.

GAS

 

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 InformationIf you smell gas Local Codes Unpacking Product Features Safety DeviceProduct Identification Piezo Ignition SystemVentilation Fresh AIR ForProviding Adequate Ventilation Determining FRESH-AIR Flow for Heater Location Fresh AIRDetermining if You Have a Confined or Unconfined Space Ventilation AIR Fresh AIR for Combustion and VentilationVentilation Air From Inside Building Ventilation Air From Outdoors Ventilation Air from OutdoorsInstalling to Wall Installation ItemsCheck GAS Type Locating HeaterLocating Thermostat Sensing Bulb Thermostat Sensing BulbAttaching Thermostat Sensing Bulb Bracket Marking Screw Locations Maintain minimum clearances shown in . If you can, provideGreater clearances from floor and joining wall Attaching Mounting Bracket To WallInstalling Bottom Mounting Screws Placing Heater On Mounting BracketConnecting to GAS Supply Connecting To GASSupply Checking GASPressure Testing Heater GAS Connections CheckingFor Your Safety Read Before Lighting Operating HeaterOperating Heater Shutting Off Heater Shutting Off Burner Only pilot stays litInspecting Burner Pilot Flame PatternBurner Flame Pattern Correct Burner Flame PatternODS/PILOT and Burner Trouble ShootingCabinet Cleaning and Mainte TroubleIng and Maintenance TROUBLE- ShootingIf you smell gas Shut off gas supplyDo not try to light any appliance BuildingService Hints Service Publications Technical Service20,000 Btu/Hr Models Parts Under Warranty Parts CentralsCGN20T CGN20TL CGN30T CGN30TL Parts List Description QTYAccessories Valve GA5010103873 Warranty Information Keep this Warranty