Desa (V)T32N-A series Owner's Operation And Installation Manual page 21

We recommend that you install a sediment
trap/drip leg in supply line as shown in Figure
32. Locate sediment trap/drip leg where it is
within reach for cleaning. Install in piping sys-
tem 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 sedi-
ment trap/drip leg is not installed or is installed
wrong, fireplace may not run properly.
CSA Design-Certified
Equipment Shutoff Valve with
1/8" NPT Tap*
Approved
Flexible Gas
Line
3" Minimum
Cap
Sediment Trap/Drip Leg
Figure 32 - Gas Connection
* The CSA design-certified equipment shutoff
valve may be supplied with the appliance or
you can purchase it from your retailer.
CONNECTING FIREpLACE TO GAS
SUppLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• sealant (resistant to propane/LP gas, not
provided)
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 33).
4. Check all gas connections for leaks. See
Checking Gas Connections.
116646-01H
FIREplaCE INSTallaTION
Natural - From
Gas Meter (5.5"
W.C. to 10.5"
W.C. Pressure)
Propane/LP
From External
Regulator (11"
W.C. to 14"
W.C. Pressure)
Pipe Nipple Tee Joint
www.desatech.com
Continued
To Gas Supply
(Natural)
To External
Regulator
(Propane/LP)
Flexible Gas Line
Do NOT Kink
Figure 33 - 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 equip-
ment 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 sys-
tem. 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 recon-
nected fittings for leaks.
Equipment
Shutoff
Valve
Control Valve
to Millivolt Valve
21