Desa FGHS30LPB Connecting To Gas Supply, Blue Flame Propane/Lp Gas Heater, Installation

BLUE FLAME PROPANE/LP GAS HEATER

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

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.

WARNING: Never connect heater directly to the propane/ LP supply. This heater requires an external regulator (not sup- plied). Install the external regu- lator between the heater and

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.

External

Regulator

Propane/LP

Supply Tank

Vent Pointing Down

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 14. 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 piping and/or fittings.

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 to between 11 and 14 inches of water. If you do not reduce incom- ing gas pressure, heater regulator damage could occur. Install the external regulator with the vent pointing down as shown in Figure 13. 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 of large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pres- sure will occur.

Typical Inlet Pipe Diameters

FGHS30LPB 1/2" or greater

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 heater (see Figure 14).

Figure 13- External Regulator with Vent

Pointing Down

Pressure

Regulator

3/8" NPT			Heater
Pipe Nipple
		Ground Joint	Cabinet
	Tee Joint	Union
		Equipment Shutoff
	Reducer	Valve *
Test	Bushing to		From External
	1/8" NPT
Gauge
			Regulator
	1/8" NPT		(11" W.C. to
	Plug Tap		14" W.C.
			Pressure)
Sediment Tee Joint
Trap	Pipe Nipple
	Cap	3" Minimum

Figure 14 - Gas Connection

*An CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 20.

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