Desa SMS18 WARNINGAqualified service, personmustconnectlogsettogas, supply. Follow all local codes

INSTALLATION

Continued

INSTALLING DAMPER CLAMP

Secure the damper stop clamp provided to the leading edge of the damper as shown in Figure 3. If for any rea- son this clamp doesn't work on your fireplace, another suitable clamp or permanent stop must be installed, or the damper blade must be cut or removed.

Damper

Clamp

Damper

	Damper
Damper	Clamp
Masonry Fireplace	Manufactured
	Fireplace
Figure 3 - Attaching Damper Clamp
CONNECTING TO GAS SUPPLY
WARNING:Aqualified service
personmustconnectlogsettogas
supply. Follow all local codes.
Installation Items Needed
Before installing log set, make sure you have the
items listed below.

•piping (check local codes)

•sealant (resistant to Propane/LP gas)

•equipment shutoff valve

•test gauge connection

•adjustable (crescent) wrench or pliers

•sediment trap

•tee joint

•pipe wrench

CAUTION:Useonlynew,black ironorsteelpipe.Internally-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 vol- ume to log set. If pipe is too small, undue loss of volume will occur.

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 log set (see Figure 4).

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.

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 a clogged burner injector.

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 4. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and appliance. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into log set controls. If sediment trap is not installed or is installed wrong, log set may not run properly.

Approved Flexible Gas Hose (if allowed by local codes)

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

	From Gas Meter
	(5" W.C.** to
	10.5" W.C.
	Pressure)
3" Minimum
Cap	Pipe	Tee
	Nipple Joint
Sediment Trap
Figure 4 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 13.

** Minimum inlet pressure for purpose of input adjustment.

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