Desa LEP) (V)L36(ZNR, LZPR), LHP) (V)L36(EP, LEN) (V)L32(HP, LHN) (V)L36(EN Checking Gas Connections

INSTALLATION

Continued

We recommend that you install a sediment trap in supply line as shown in Figures 21 and 22, depend- ing 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 (Variable Manually-Controlled Models 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).

		CSA Design-
		Certified Equipment
Propane/LP		Shutoff Valve with
		1/8" NPT Tap*		Approved
From External
				Flexible
Regulator
				Gas Hose (if
(11" W.C.**
				allowed by
to 14" W.C.
				local codes)
Pressure)
Natural
From Gas
Meter (5"
W.C.** to			3" Minimum
10.5" W.C.
	Tee Cap		Pipe	Gas
Pressure)
				Regulator
	Joint		Nipple
		Sediment Trap
Figure 21 - Attaching Flexible Gas Line to
Control Valve (Manually-Controlled Models)

CSA Design-Certified Equipment Shutoff Valve with 1/8" NPT Tap*

Approved	Propane/LP
Flexible
	- From External
Gas Hose (if
	Regulator
allowed by
	(11" W.C.** to 14"
local codes)
	W.C. Pressure)

	Natural - From
	Gas Meter (5"
3" Minimum	W.C.** to 10.5"

	Pipe	Cap TeeW.C. Pressure)
	Nipple	Joint
Gas	Sediment Trap
Control

Figure 22 - Attaching Flexible Gas Line to Control Valve (Remote-Ready Models)

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 35.

**Minimum inlet pressure for purpose of input adjustment

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and heater.SeeguidelinesunderCon- necting to Gas Supply, page 16.

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