INSTALLATION

Continued

CONNECTING FIREPLACE TO GAS SUPPLY

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 21).

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 your building codes for any special re- quirements 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 21. 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.

Installation Items Needed

Phillips screwdriver

sealant (resistant to propane/LP gas, not provided)

1.Route flexible gas line (provided by installer) from equipment shutoff valve into fireplace through side or rear access holes in outer casing (see Figure 22).

NOTICE: Most building codes do not permit concealed gas connections. A flexible gas line is provided to allow accessibility from the fireplace (see Figure 23). The flexible gas supply line con- nection to the equipment shutoff valve should be accessible.

2.Apply pipe joint sealant lightly to male threads of gas connector attached to flexible gas line (see Figure 23). Connect flexible gas line to flexible gas line attached to gas valve of fireplace (see Figure 23).

Outer

Casing

CSA Design-Certified

Propane/LP

From External

Equipment Shutoff Valve

Regulator

With 1/8" NPT Tap*

(11" W.C.** to

 

 

 

 

14" W.C.

 

 

Pressure)

 

 

Natural From

 

 

Gas Meter

 

Approved Flexible

(5" W.C.**

Gas

to 10.5" W.C.

Gas Hose

Pressure)

Control

 

 

3" Minimum

 

Equipment

 

Shut Off

 

Valve

Figure 22 - Routing Flexible Gas Line

To Fireplace Gas

Equipment

Regulator

Shutoff Valve

 

Provided by

 

Installer

Cap Pipe Tee

Nipple Joint

Sediment Trap

Figure 21 - Gas Connection

Flexible Gas Line from Fireplace Gas Regulator

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 32.

** Minimum inlet pressure for purpose of input adjustment.

To Gas Meter

Figure 23 - Attaching Flexible Gas Lines Together

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Desa CF26PTA installation manual Connecting Fireplace to GAS Supply, Propane/LP, Natural From