Desa BDV34N(A) Installing GAS Piping to Fireplace Location, Installation Items Needed

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DIRECT-VENT FIREPLACE (NATURAL/PROPANE)

FIREPLACE INSTALLATION

Continued

INSTALLING GAS PIPING TO FIREPLACE LOCATION

NOTICE: A qualified service per- son must connect fireplace to gas supply. Follow all local codes.

CAUTION: For propane units, never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane supply.

Installation Items Needed

Before installing fireplace, make sure you have the items listed below.

•external regulator (supplied by installer)

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•manual shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

•approved flexible gas line with gas con- nector (if allowed by local codes) (not provided)

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Pur- chase the A.G.A. design-certified manual shutoff valve from your dealer.

For propane connections only, the installer must supply an external regulator. The ex- ternal regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could

CAUTION: Use only new, black iron or steel pipe. Inter- nally-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 pressure will occur.

Installation must include a manual 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 35).

Propane

Supply

Tank

External

Regulator

Vent

Pointing

Down

Figure 34 - External Regulator with Vent Pointing Down (Propane Only)

A.G.A. Design-Certified Manual Shutoff Valve with 1/8" NPT Tap*

Approved Flexible

Gas Line

3" Minimum

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

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

CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

Install sediment trap/drip leg in supply line as shown in Figure 35. Locate sediment trap/drip leg where it is within reach for cleaning. Locate sediment trap/drip leg where trapped matter is not likely to freeze. A sediment trap traps moisture and con- taminants. This keeps them from going into fireplace gas controls. If sediment trap/drip leg is not installed or is installed wrong, fireplace may not run properly.

Natural - From Gas

Meter (5" W.C. to 10.5"

W.C. Pressure )

LP - From External Regulator (11" W.C. to 14" W.C. Pressure)

occur. Install external regulator with the vent pointing down as shown in Figure 34. Pointing the vent down protects it from freezing rain or sleet.

Cap Pipe Nipple Tee Joint

Sediment Trap/Drip Leg

Figure 35 - Gas Connection

*The A.G.A. design-certified manual shutoff valve may be supplied with the appliance or you can purchase it from your dealer.

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