Checking Gas Connections - Desa (V)T32EP-A SERIES, (V)T32EN-A SERIES Owner's Operation And Installation Manual

FIREplaCE
INSTallaTION
Continued
ImportaNt: Install main gas valve (equipment
shutoff valve) in an accessible location. The main
gas 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 fireplace valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment
trap/drip leg in supply line as shown in Figure
31, page 20. Locate sediment trap/drip leg where
it is within reach for cleaning. Install in piping
system between fuel supply and fireplace. Locate
sediment trap/drip leg where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into
fireplace gas controls. If sediment trap/drip leg is
not installed or is installed wrong, fireplace may
not run properly.
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• sealant (resistant to propane/LP gas, not pro-
vided)
1. Open lower louver door panel by gently
pulling forward.
2. Route flexible gas line (provided by in-
staller) from equipment shutoff valve to
fireplace. Route flexible gas supply line
through one of the access holes on side of
fireplace.
3. Attach flexible gas line from gas supply
to control valve (see Figure 32).
4. Check all gas connections for leaks. See

Checking Gas Connections.

116647-01B
Equipment
Shutoff
Valve
1/" NPT
Incoming Gas
Line
Note: Wire Connections Not Shown for
Clarity
Figure 32 - Connecting Flexible Gas Line
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
noncorrosive leak detection fluid
to all joints. Bubbles forming show
a leak. Correct all leaks at once.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect fireplace and its individual equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig (3.5 kPa)
will damage fireplace gas regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas fireplace or opening main gas
valve located on or near gas meter for natural
gas fireplace or using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak. Correct
all leaks at once.
5. Reconnect fireplace and equipment shutoff
valve to gas supply. Check reconnected fittings
for leaks.
www.desatech.com
Red Surface
Indicates For
Flexible Gas
Propane/LP
Line Do NOT
Use Only
Kink
Inlet
Pressure
Tap
to Electronic Valve
Outlet
Pressure
Tap
1