Vanguard Heating VMH10TNA Checking GAS Connections, Pressure Testing Gas Supply Piping System

Page 16

®VMH10TNA

VENT-FREE NATURAL GAS COMPACT FIREPLACE

INSTALLATION

Continued

CHECKING GAS

CONNECTIONS

WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG

1.

Disconnect fireplace and its individual

 

manual shutoff valve from gas supply

 

piping system. Pressures in excess of 1/2

 

psig will damage fireplace regulator.

2.

Cap off open end of gas pipe where

 

manual shutoff valve was connected.

3.

Pressurize supply piping system by ei-

 

ther using compressed air or opening

 

main gas valve located on or near gas

 

meter.

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Fig- ure 25).

2.Pressurize supply piping system by ei- ther 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 26). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Manual

Shutoff

ValveOpen

Closed

Figure 25 - Manual Shutoff Valve

Pressure Testing Fireplace Gas Connections

1.Open manual shutoff valve (see Figure 25).

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

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

4.Check all joints from manual shutoff valve to thermostat gas valve (see Fig- ure 26). Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fire- place, 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.

4.

Check all joints of gas supply piping

 

system. Apply mixture of liquid soap

 

and water to gas joints. Bubbles form-

 

ing show a leak.

5.

Correct all leaks at once.

6.

Reconnect fireplace and manual shutoff

 

valve to gas supply. Check reconnected

 

fittings for leaks.

Gas Meter

Manual

Shutoff

Valve

Figure 26 - Checking Gas Joints

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Contents VENT-FREE Natural GAS Compact Classic Hearth Fireplace What to do if YOU Smell GASSafety Information VMH10TNAProduct Features Product IdentificationLocal Codes UnpackingAssembly Installing LogAssembling Fireplace Assembling HoodAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Fireplace Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation Installation ItemsCheck GAS Type Locating FireplaceBUILT-IN Fireplace Installation Wall openingOptional Mantel Installation Mantel Clearances for Built-In InstallationInstalling Blower Accessory GA3400T Removing Upper Louver AssemblyInstalling Blower Assembly Assembling Brass Trim Brass trim shipped with mantelInstall the switch plate on the valve For Built-In Installation Extension CordConnecting to GAS Supply Attaching Wood Base to Solid FloorConnecting Fireplace to GAS Supply Installation Items NeededPressure Testing Fireplace Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Operating Fireplace For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureOperating Blower Pilot Flame Pattern Inspecting BurnerBurner Flame Pattern Troubleshooting Observed Problem Possible Cause RemedyClean burner see Cleaning and Mainte Gas leak. See Warning statement at Cleaning and Maintenance Service HintsTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleIllustrated Parts Breakdown VMH10TNA17Parts List VMH10TNASpecifications Replacement PartsParts Under Warranty Parts not Under WarrantyAccessories Warranty Information