Desa CGG2618N, CGG3630N Connecting To Gas Supply, Installation, Continued, Accessories, page

OWNER’S MANUAL

INSTALLATION

Continued

4.Remove heater base from fireplace.

5.Drill holes at marked locations using 3/16" drill bit. Drill at a 45° angle.

6.Attach base to fireplace floor using masonry screws in hardware package (see Figure 12).

7.Connect to gas supply. See Connect- ing To Gas Supply.

Heater Gas

Regulator

Flexible Gas Hose (if allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator

CONNECTING TO GAS SUPPLY

WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.

Installation Items Needed

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

•piping (check local codes)

•sealant (resistant to propane/ LP gas)

•manual shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

* An A.G.A. design-certified manual shutoff

valve with 1/8" NPT tap is an acceptable

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

We recommend that you install a sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sedi- ment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.

Masonry Screw

alternative to test gauge connection. Pur-

chase the optional A.G.A. design-certified

manual shutoff valve from your dealer. See

Accessories, page 22.

WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly

From Gas Meter

(5" W.C.** to 10.5" W.C. Pressure)

A.G.A. Design-Certified

Manual Shutoff Valve

With 1/8" NPT Tap*

Approved Flexible Gas Hose (if allowed by local codes)

Figure 12 - Attaching Heater to Fireplace Floor

known as wellhead gas.

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 heater. 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 heater (see Figure 13).

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 heater valves.

		3" Minimum
Tee		Pipe	Gas
			Regulator
Joint	Cap	Nipple

Sediment Trap

Figure 13 - Gas Connection

*Purchase the optional A.G.A. design-cer- tified manual shutoff valve from your dealer. See Accessories, page 22.

**Minimum inlet pressure for purpose of input adjustment.

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