Desa CSG3930NR, CSG3930PR installation manual External Regulator With Vent Pointing Down

INSTALLATION

Connecting To Gas Supply (Cont.)

13

INSTALLATION

Continued

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 or 15, depending on your model).

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

Check building codes for any special requirements for locating equipment shutoff valve to fireplaces.

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 heater valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install a sediment trap in supply line as shown in Figure 14 or 15, depending on your model. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment 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 (Thermostat-Controlled Mod- els Only).

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or fittings (Remote-Ready Models Only).

External Regulator

Propane/LP

Supply Tank

Vent Pointing Down

Figure 13 - External Regulator With Vent Pointing Down

	CSA Design-Certified Equipment
PROPANE/LP -	Shutoff Valve With 1/8" NPT Tap*
From External
Regulator
(11" W.C.**	Approved Flexible
to 14" W.C.
	Gas Hose (if allowed
Pressure)
	by local codes)
NATURAL -
From Gas	3" Minimum
Meter
(5" W.C.**
to 10.5" W.C.
Pressure)	Gas Regulator

Tee Cap Pipe

Joint Nipple

Sediment Trap

Figure 14 - Gas Connection (Thermostat-Controlled Models Only)

		CSA Design-Certified Equipment
PROPANE/LP -		Shutoff Valve With 1/8" NPT Tap*
From External
Regulator		Approved Flexible
(11" W.C.**		Gas Hose (if allowed
to 14" W.C.		by local codes)
Pressure)
NATURAL -
From Gas
Meter
(5" W.C.**	3" Minimum
to 10.5" W.C.
Pressure)
Tee	Pipe
Joint	Nipple Cap	Gas Control
		Valve
Sediment Trap

Figure 15 - Gas Connection (Remote-Ready Models Only)

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 34.

**Minimum inlet pressure for purpose of input adjustment.

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110021-01G