Desa LHN) (V)L36(EN, LZPR) Test Pressures In Excess Of 1/2 Psig 3.5 kPa, Supply Tank

Page 18

INSTALLATION

Continued

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 system. 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 noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

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

1.Close equipment shutoff valve (see Figure 23).

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 to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/ LP (see Figure 24 and 25). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak.

4.Correct all leaks at once.

Equipment

 

Open

Shutoff Valve

 

 

 

Closed

Figure 23 - Equipment Shutoff Valve

Equipment Shutoff Valve

Propane/LP

Supply Tank

Control Valve Location

Figure 24 - Checking Gas Joints (Propane/LP Gas Only)

Equipment

Shutoff Valve

Gas

Meter

Control Valve Location

Figure 25 - Checking Gas Joints

(Natural Gas Only)

PRESSURE TESTING HEATER GAS CONNECTIONS

1.Open equipment shutoff valve (see Figure 23).

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 heater is in the OFF position.

4.Check all joints from equipment shutoff valve to control valve (Manually-Controlled Mod- els) or to gas control (Remote-Ready Models) (see Figures 24 and 25). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Fireplace, page 21). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appli- ance, page 23 for Manually-Controlled Mod- els or page 25 for Remote-Ready Models).

18

www.desatech.com

115254-01A

Page 17 Page 19
Image 18
Page 17 Page 19
Contents VL32HP, LHP VL32HN, LHNVL36EN, LEN VL36EP, LEPTable of Contents Safety Information Local Codes Product FeaturesBlower Accessory OperationPlanning Product SpecificationsLocating Firebox Models42 Models AIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors InstallationInstallation Clearances Minimum Wall and Ceiling Clearances see ,BUILT-IN Firebox Installation ExampleMinimum 16 inches from Side Wall Rough Opening for Installing Wall Nails or Wood Screws Nailing FlangesInstalling Firebox Using Optional Accessory Mantels Installing Cabinet MantelInstalling Optional Blower Accessories Lower Louver PanelDuplex Electrical Outlet Wiring Diagram Decal 12 Front of Blower Place control knob, provided, onto control shaft see FigureDuplex Box Handy Box Strain Relief HARD-WIRING FireboxInstalling Fireplace Hood and Screen Top View of Rod LayoutConnecting to GAS Supply Installation Items NeededVent Pointing Down Checking GAS Connections Propane/LPNatural Supply Tank Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Correct all leaks at onceLog #2 Log #1 Front Post Installing LogsVintage Oak Two-Piece Log Set Chassis PostPost Ember Bed Base AssemblyMetal Metal PostTop Left Log Top Right Log Middle Operating FireplacePlace top left log on middle log as shown in Figure Left Front Log Right Front LogControl Knob Ignitor Lighting InstructionsPress in control knob and turn counter ButtonVariable Control Operation Manual Lighting ProcedureREMOTE-READY Models For Your Safety Read Before Lighting To Turn OFF GAS To ApplianceBe hot if heater has been running Optional Remote Control Follow instructions included with the remote controlControl Knob Flame Adjustment On Position Optional HAND-HELD Remote OperationON/OFF Series Model Ghrcb Thermostat Series Model GhrctbInspecting Burners Pilot Flame PatternFront Burner Flame Pattern Cleaning Maintenance Cleaning LogsBurner Injector Holder and Pilot AIR Inlet Hole Troubleshooting Observed Problem Possible Cause RemedyLeased Clean ODS/pilot seeLow gas pressure Assembly Long enoughBurner backfiring during com When burners are lit Position when burners areObserve minimum installa Bustion DamagedGas leak. See Warning Maximum Minimum Shipping Weight 104 lbs 184 lbs SpecificationsWiring Diagram REMOTE-READY Models onlyReplacement Parts Service HintsTechnical Service Parts Under WarrantyAccessories Illustrated Parts Breakdown Parts List Parts Available not Shown46 39 Parts List 23/24 Not Shown Illustrated Parts Breakdown and Parts List 110314-05 Crossover LogKEY LOG Part Numbers VL36 Models VL42 Models Description QTY Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Fireplace
Top Page Image Contents