Connecting to GAS Supply

OWNER’S MANUAL

INSTALLATION

Continued

WARNING: This appliance re- quires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

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

CAUTION: Never connect heater directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator be- tween the heater and propane/LP supply.

The installer must supply an external regu- lator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure between 11 and 14 inches of water. If you do not reduce incom- ing gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure

12.Pointing the vent down protects it from freezing rain or sleet.

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 3/8" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include an equipment shutoff valve, ground joint 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).

IMPORTANT: Install an equipment shutoff valve in an accessible location. The equip- ment shutoff valve is for turning on or shutting off the gas to the appliance.

Propane/LP

Supply

Tank External

Regulator

Vent

Pointing

Down

Figure 12 - External Regulator With Vent Pointing Down

3/8" NPT Pipe Nipple

Ground Joint Union

Equipment Shutoff

Valve *

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

3" Minimum

Figure 13 - Gas Connection

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.

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

Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. 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.

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas pip- ing and/or fittings.

Pressure

Regulator

Heater

Cabinet

Tee Joint
Reducer		Test
Bushing to		Test
Bushing to		Gauge
1/8" NPT		Gauge
1/8" NPT		Connection *
1/8" NPT		Connection *
1/8" NPT
Plug Tap
Plug Tap
Tee
Tee
Joint
Pipe	Sediment Trap
Pipe	Sediment Trap
Nipple
Cap

*A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessory, page 13.

Continued

104268

CGP10TLA, CGP10TA specifications

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Desa CGP10TA, CGP10TLA Connecting to GAS Supply, External Regulator With Vent Pointing Down

Models: CGP10TLA CGP10TA

INSTALLATION