Desa CGCF26TN Checking GAS Connections, Pressure Testing Gas Supply Piping System

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INSTALLATION

Checking Gas Connections

INSTALLATION

Continued

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure external regulator has been installed between propane/LP supply and fireplace. See guidelines under Connecting to Gas Supply, page 14.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping sys- tem. Pressures in excess of 1/2 psig will damage heater regulator.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.Pressurize supply piping system by either opening propane/ LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.

4.Check all joints of gas supply piping system. Apply a noncor- rosive leak detection fluid to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 27).

2.Pressurize supply piping system by either opening propane/ LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.

3.Check all joints from gas meter for natural or propane/LP sup- ply to equipment shutoff valve (see Figures 28 and 29). Ap- ply a noncorrosive leak detection fluid to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Pressure Testing Fireplace Gas Connections

1.Open equipment shutoff valve (see Figure 27).

2.Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

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

4.Check all joints from equipment shutoff valve to thermostat gas valve (see Figures 28 and 29). Apply a noncorrosive leak detection fluid to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fireplace, pages 17 and 18). Check all other internal joints for leaks.

7.Turn off fireplace (see To Turn Off Gas to Appliance, page 18).

8.Replace front panel.

Equipment

Open

Shutoff

 

Valve

 

Closed

Figure 27 - Equipment Shutoff Valve

 

Equipment

Propane/LP

Shutoff Valve

Supply Tank

 

Figure 28 - Checking Gas Joints Shown with Optional Mantel (Propane/LP Gas)

Equipment Shutoff Valve

Gas Meter

Figure 29 - Checking Gas Joints Shown with Optional Mantel (Natural Gas)

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111044-01A

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASTable of Contents Safety InformationLocal Codes Product IdentificationAssembly Product FeaturesUnpacking AIR for Combustion and Ventilation Providing Adequate VentilationAssembling Hood Unusually Tight ConstructionConfined and Unconfined Space 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 Items Locating FireplaceBUILT-IN Fireplace Installation Rough Opening for Installing in WallMantel Clearances for BUILT-IN Installation Optional Mantel InstallationInstalling Blower Accessory GA3450T Removing Upper Louver AssemblyInstalling Blower Assembly Removing Valve Cover ShieldFor Built-In Installation OutletAttaching Wood Base to Solid Floor Connecting to GAS SupplyExtension Cord Connecting Equipment Shutoff Valve to Heater Control Installation Items NeededPressure Testing Fireplace Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Operating Fireplace For Your Safety Read Before LightingLighting Instructions Inspecting Burner Cleaning and Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleCabinet Air PassagewaysTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Specifications Replacement PartsService Hints Technical ServiceIllustrated Parts Breakdown Models CGCF26TP and CGCF26TNParts List KEY CGCF26TP CGCF26TN Description QTYParts Centrals Owners Registration Form Postage Required Accessories Warranty Information