Desa VVSA24M, VVDA24M, VVDA18M, VVDA30M, VVSA18M Installing Damper Clamp, Connecting to GAS Supply

INSTALLATION

Installing Damper Clamp

5

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 reason 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

Masonry Fireplace	Manufactured
	Fireplace

Damper

Clamp

Damper

Figure 3 - Attaching Damper Clamp

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 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 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 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)

CONNECTING TO GAS SUPPLY

WARNING: A qualified service person must con- nect log set to gas 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: Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diam- eter or greater to allow proper gas volume to log set. If pipe is too small, undue loss of volume will occur.

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

	From Gas Meter
3" Minimum	(5" W.C.** to
	10.5" W.C.
	Pressure)
Cap Pipe Nipple Tee Joint

Sediment Trap

Figure 4 - Gas Connection

*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

901268