Desa Tech SL30PT installation manual Connecting to GAS Supply, Installation Items Needed

OWNER’S MANUAL

INSTALLATION

Continued

CONNECTING TO GAS

SUPPLY

WARNING: This appliance re- quires a 1/2" 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 ex- ternal regulator (not supplied). In- stall the external regulator between the heater and propane/LP supply.

Installation Items Needed

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

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•equipment shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

*An CSA/AGA design-certified equip- ment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connec- tion. Purchase the optional CSA/AGA de- sign-certified equipment shutoff valve from your dealer. See Accessories, page 19.

From External

Regulator (11"

W.C.** to 14" W.C.

Pressure)

Sediment	Tee Joint
	Pipe
Trap
	Nipple	3" Minimum
	Cap
Figure 19 - Gas Connection

The gas inlet connection for the stove heater is located on the lower right-hand side of the stove when viewed from the front of the unit. The gas connection can be made either through the bottom right side or through the lower back opening as illustrated in Figure

17.Make sure gas log heater is secured to the stove cavity assembly.

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 external regulator with the vent pointing down as shown in Figure

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

Back Stove

Panel

Product	Back View
Identification
Label
Side View	Gas
	Log
Front	Heater
of
Stove	Gas Inlet
Unit	Connection
	Access

Figure 17 - Gas Regulator Location and Gas Line Access Into Stove Cabinet

CSA/AGA Design-Certified Equipment Shutoff Valve With

1/8" NPT Tap*

Approved Flexible Gas Hose (if allowed by local codes)

Gas

Regulator

WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly 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 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 19).

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 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.

External

Regulator

Propane/LP

Supply Tank

Vent Pointing Down

*Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessories, page 19.

**Minimum inlet pressure for purpose of input adjustment.

Figure 18 - External Regulator With Vent Pointing Down

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