Desa (V)VC42NE, (V)VC42PE Connecting Fireplace to GAS Supply, Checking GAS Connections

Page 19

FIREPLACE INSTALLATION

Installing Gas Piping to Fireplace Location (Cont.) Connecting Fireplace To Gas Supply Checking Gas Connections

19

FIREPLACE INSTALLATION

Continued

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" inside 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

Figure 31 - Gas Connection

Sediment Trap/Drip Leg

 

 

*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.

 

Red Surface Indicates

Equipment

For Propane/LP Use Only

Flexible Gas Line

Shutoff Valve

Do NOT Kink

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

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply noncorrosive leak detection fluid 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 (3.5 kPa)

1.Disconnect fireplace and its individual equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig (3.5 kPa) will damage fireplace gas 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 fireplace or opening main gas valve located on or near gas meter for natural gas fireplace or using compressed air.

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

5.Reconnect fireplace and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

116237-01A

www.desatech.com

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Contents For Your Safety What to do if YOU Smell GAS For Your SafetySafety Information Table of ContentsLocal Codes Safety Information Product IdentificationPRE-INSTALLATION Preparation Product FeaturesLocation and Space Requirements Framing and Finishing ClearancesTermination CAP AIR Supply Inlet GAS Meter Location of Termination CAPInstallation Precautions Venting Installation InstructionsHorizontal Termination Installation Installation PlanningInstalling Horizontal Vent Cap Noncombustible Exterior Horizontal Termination Configurations Venting Installation InstructionsCorner Installation Venting with Two 90 Elbows Flat Ceiling Installation Installation for Vertical TerminationVertical V Horizontal H Min Max 12 max 18 max 20 max Vertical Termination ConfigurationsHigh Altitude Installation Desa 5/8 Pipe & Vent Kits Venting InstallationFireplace Installation Check GAS Type Installing Optional Blower AccessoryModel BKT Installation Fireplace InstallationBlower Wiring Diagram Installing GAS Piping to Fireplace LocationInstallation Items Needed Pressure Testing Gas Supply Piping System Connecting Fireplace to GAS SupplyChecking GAS Connections REMOVING/REPLACING Glass Door Pressure Testing Fireplace Gas ConnectionsRemoving Louver Panels Cleaning Glass Door Installing Lava Rock and Glowing EmbersRemoving Glass Door Wall Switch Installation Installing Brick Liner Models BL42DASA and BL42DHASAOptional Remote Control Installation Model WRC Operating Fireplace Wiring DiagramLighting Instructions Operation Operating Optional Blower AccessoryTo Turn OFF GAS To Appliance Optional RemoteLogs Cleaning MaintenanceGlass Door Pilot and BurnersObserved Problem Possible Cause Remedy TroubleshootingGas leak. See Warning statement at Parts Under Warranty Replacement PartsService Hints Technical ServiceSpecifications Models VC42NE, VC42PE, VVC42NE and VVC42PE Illustrated Parts BreakdownKEY Part Number Description QTY Parts List19 18 116237-01A KEY Part Number Description Accessories Owners Registration Form Postage Required 116237-01A Keep this Warranty Warranty Information

(V)VC42PE, (V)VC42NE specifications

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