Desa FVFM27NR Checking GAS Connections, Pressure Testing Gas Supply Piping System

Page 12

FIREPLACE MANUFACTURERS INCORPORATED

UNVENTED NATURAL GAS LOG HEATER

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 heater and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater 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.

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 heater and manual shutoff valve to gas supply. Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Fig- ure 14).

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 15). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Manual

Shutoff Open

Valve

Closed

Figure 14 - Manual Shutoff Valve

Pressure Testing Heater Gas Connections

1.Open manual shutoff valve (see Fig- ure 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 control valve (see Figure 15). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 14 through 16). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 15).

Manual

 

Shutoff

 

Valve

Control Valve

 

Location

Gas Meter

 

Figure 15 - Checking Gas Joints

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Contents Millivolt Remote Control Ready Model FVFM27NRWhat to do if YOU Smell GAS Patent PendingSafety Information Product Features Remote Control AccessoriesProduct Identification Local CodesAIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Check GAS TypeMinimum Wall and Ceiling Clearances see Figure Log Size Side Wall CeilingIf Using Mantel If Not Using MantelMinimum Noncombustible Material Clearances Eration,Determining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation Installing Heater Base AssemblyInstallation Items Needed Area of Various Standard Round FluesConnecting to GAS Supply Attaching Flexible Gas Hose to HeaterPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2 PsigInstalling Logs Installing Bottom Log #1For Your Safety Read Before Lighting Operating HeaterInstructions Manual Lighting Procedure To Turn OFF GAS To ApplianceOptional Remote Operation Inspecting Burners Pilot Flame PatternBurner Primary AIR Holes Main BurnerTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Maintenance,Top Gas leak. See Warning statement at topCleaning and Maintenance SpecificationsService Hints Technical ServiceAccessories Replacement PartsWiring Diagram Illustrated Parts Breakdown FVFM27NRParts List Description QTYWarranty Information Limited Warranty VENT-FREE Natural GAS LOG Heaters

FVFM27NR specifications

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