Desa (V)T32EN installation manual Connecting Fireplace to GAS Supply, Installation Items Needed

Page 17

Fireplace Installation

Continued

For propane/LP connection only, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of water. If you do not reduce incoming gas pressure, fireplace regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 30. Pointing the vent down protects it from freezing rain or sleet.

CAUTION: Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to fireplace. If pipe is too small, undue loss of volume will occur.

Installation must include an equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 31). IMPORTANT: Install main gas valve (equipment shutoff valve) in an accessible location. The main gas valve is for turning on or shutting off the gas to the appliance.

Check your building codes for any special requirements for locating equipment shutoff valve to fireplaces.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged fireplace valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install a sediment trap/drip leg in supply line as shown in Figure 31. Locate sediment trap/drip leg where it is within reach for cleaning. Install in piping system between fuel supply and fireplace. Locate sediment trap/drip leg where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into fireplace gas con- trols. If sediment trap/drip leg is not installed or is installed wrong, fireplace may not run properly.

CSA Design-Certified

Equipment Shutoff Valve

with 1/8" NPT Tap*

 

Natural - From

 

Gas Meter (5.5"

 

W.C. to 10.5"

Approved Flexible

W.C. Pressure)

Gas Line

Propane/LP

 

From External

 

Regulator (11"

 

W.C. to 14" W.C.

3" Minimum

Pressure)

 

Cap

Pipe Nipple Tee Joint

Sediment Trap/Drip Leg

Figure 31 - Gas Connection

*The CSAdesign-certified equipment shutoff valve may be supplied with the appliance or you can purchase it from your retailer.

CONNECTING FIREPLACE TO GAS SUPPLY

Installation Items Needed

5/16" hex socket wrench or nut-driver

sealant (resistant to propane/LP gas, not provided)

1.Open lower louver door panel by gently pulling forward.

2.Route flexible gas line (provided by installer) from equipment shutoff valve to fireplace. Route flexible gas supply line through one of the access holes on side of fireplace.

3.Attach flexible gas line from gas supply to control valve (see Figure 32).

4.Check all gas connections for leaks. See Checking Gas Connections, page 18.

 

Red Surface Indicates

Equipment

Flexible Gas Line For Propane/LP Use Only

Shutoff Valve

Do NOT Kink

External Regulator

Vent

Pointing

Down

Propane/LP

Supply Tank

1/2" NPT Incoming

 

 

Gas Line

Inlet Pressure Tap

Outlet Pressure Tap

 

Note: Wire Connections Not Shown for Clarity

Figure 32 - Connecting Flexible Gas Line to Electronic Valve

Figure 30 - External Regulator with Vent Pointing Down

(Propane/LP Only)

108860-01D

www.desatech.com

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Contents What to do if YOU Smell GAS For Your SafetySafety Information Table of ContentsLocal Codes Product FeaturesProduct Identification Clearances Pre-Installation PreparationLocation and space requirements Framing and finishing Framing Clearances for Installation Against an Exterior WallTermination CAP AIR Supply Inlet GAS Meter Location of Termination CapInstallation Precautions Venting Installation InstructionsInstallation Planning Horizontal Termination InstallationVent Pipe Connections Installing Siding Standoff Square Termination Horizontal Termination ConfigurationsVenting with Two 90 Elbows Snorkel Termination InstallationOffset with Wall Strap and 45 Elbows Flat Ceiling InstallationVertical Venting Vertical Termination Configurations High Altitude Installation Fireplace Installation Parts lists for venting kits and components Installing optional blower accessoriesBlower Model BK Model BKT InstallationInstallation Items Needed Installing Gas Piping to Fireplace LocationBlower Wiring Diagram Installation Items Needed Connecting Fireplace to GAS SupplyPressure Testing Fireplace Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaUnplug fireplace. Let cool before installing brick liner Cleaning Glass DoorRemoving/Replacing Glass Door Removing Louver PanelsInstalling Log No Installing logs, lava rock and glowing embersInstalling Logs No and No Optional Remote control Installation model WRC Wiring DiagramWall Switch Installation Operating Fireplace For your safety read Before lightingLighting Instructions To Turn OFF GAS To AppliancePilot assembly Operating optional Blower accessoryInspecting Burners Burner Flame PatternGlass Door Cleaning MaintenancePilot and burners LogsTo clean pilot. This can damage pilot unit TroubleshootingTop above Gas leak. See Warning statement atService Hints Replacement PartsTechnical Service SpecificationsAccessories Illustrated Parts Breakdown VT32EPRB Parts List109 Parts List 23-5 23-3 23-4 23-2 23-1 VT36ENR 109 2917 KEY Description Keep this Warrant Warranty Information