Desa CF26PT Connecting to GAS Supply, External Regulator with Vent Pointing Down

CF26PT

VENT-FREE PROPANE/LP BAY FRONT FIREPLACE

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator.

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

CAUTION: Never connect fire- place directly to the propane/LP supply. This fireplace requires an external regulator (not sup- plied). Install the external regula- tor between the fireplace and pro- pane/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

Installation must include a 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 21).

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

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.

Propane/LP

Supply

Tank

External

Regulator

Vent

Pointing

Down

Figure 20 - External Regulator with Vent Pointing Down

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 21 . 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 fireplace controls. If sediment trap is not installed or is installed wrong, fireplace may not run properly.

inches of water. If you do not reduce incom- ing gas pressure, fireplace regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure

20.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 1/2" or greater diameter to allow proper gas volume to fireplace. If pipe is too small, undue loss of volume will occur.

	Gas
	Control	CSA Design-Certified
		Equipment Shutoff Valve
		With 1/8" NPT Tap*
I
H
LO
O
N	F
O	F
TOL	P
	Approved Flexible
	Gas Hose
			From External
			Regulator
			(11" W.C.** to
		3" Minimum	14" W.C.
			Pressure)
		Cap Pipe	Tee
		Nipple	Joint

Figure 21 - Gas Connection Sediment Trap

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 26.

**Minimum inlet pressure for purpose of input adjustment.

For more information, visit www.desatech.com 12 107187