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

FIREPLACE
INSTALLATION
Continued
Installation must include an equipment shutoff
valve, union, and plugged 1/8" NPT tap. Lo-
cate NPT tap within reach for test gauge hook
up. NPT tap must be upstream from fireplace
(see Figure 31).
IMPORTANT: Install main gas valve (equip-
ment 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
requirements 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. 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.
Approved Flexible
Gas Line
CSA Design-Certified
Equipment Shutoff
Valve with 1/8" NPT
Tap*
3" Minimum
Cap Pipe Nipple Tee Joint
Sediment Trap/Drip Leg
Figure 31 - Gas Connection
* The CSA design-certified equipment shutoff
valve may be supplied with the appliance or
you can purchase it from your retailer.
111986-01F
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)
www.desatech.com
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 32).
4. Check all gas connections for leaks. See
Checking Gas Connections.
To Gas Supply (Natural)
To External Regulator
(Propane/LP)
Flexible Gas
Line Do NOT
Kink
Figure 32 - Connecting Flexible Gas Line
to Control Valve
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 a noncorrosive leak detec-
tion fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
Equipment
Shutoff
Valve
Control
Valve
21