Desa VDCFTNB Connecting Equipment Shutoff Valve to Heater Control, Checking GAS Connections

INSTALLATION

Continued

We recommend that you install a sediment trap in supply line as shown in Figure 20, page 16. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped mat- ter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into fireplace controls. If sediment trap is not installed or is installed wrong, fireplace may not run properly.

CONNECTING EQUIPMENT SHUTOFF VALVE TO HEATER CONTROL

Installation Items Needed

•Phillips screwdriver

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

1. Open lower louver (see Figure 21).

NOTICE: Most building codes do not permit concealed gas connections. A flexible gas line is provided to allow accessibility fromthefireplace(seeFigure21). The flexible gas supply line con- nection to the equipment shutoff valve should be accessible.

2.Route flexible gas line, included, from fire- place control to equipment shutoff valve through side access holes in outer casing.

3.Apply pipe joint sealant lightly to male threads of gas connector attached to flexible gas line/ equipment shutoff valve (see Figure 22).

CAUTION: Avoid damage to regulator.Holdgasregulatorwith wrenchwhenconnectingittogas piping and/or fittings (Thermo- stat-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).

4.Check all gas connections for leaks. See Checking Gas Connections, below. Feed flexible gas line into fireplace. Make sure the entire flexible gas line is in fireplace.

Lower

Louver

Flexible Gas

Line

Figure 21 - Flexible Gas Line Location

(Remote-Ready Unit Shown)

To Gas Regulator (Thermostat-
Controlled Models) or Control
Valve (Remote-Ready Models)
		Equipment
		Shutoff
		Valve
Flexible Gas Line
from Fireplace
Gas Regulator		PROPANE/LP
Provided	With
		To External Regulator
Fireplace
		NATURAL GAS
		To Gas Supply
Figure 22 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
CHECKING GAS CONNECTIONS
WARNING:Testallgaspiping
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.

116526-01A www.desatech.com 17