Desa VTGF33NRB - Manual (Page 14)

www.desatech.com 113134-01F 14
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from go-
ing into pipe. Excess sealant in pipe could result
in clogged fireplace valves. Never use sealant on
flare threads.
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 15. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and fireplace.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into fire-
place gas controls. If sediment trap is not installed or
is installed wrong, fireplace may not run properly.
INSTALLATION
Continued
Figure 15 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 36.
Natural
From Gas
Meter
(5" W.C. to
10.5" W.C.
Pressure)
Propane/LP
From
External
Regulator
(11" W.C.
to 14" W.C.
Pressure
CSA Design-Certified
Equipment Shutoff
Valve With 1/8" NPT
Tap*
3" Minimum
Sediment Trap
Pipe Cap Tee
Nipple Joint
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 5/16" hex socket wrench or nut-driver
• Phillips screwdriver
• sealant (resistant to propane/LP gas, not provided)
1. If fireplace screen and floor are still installed,
see Removing Fireplace Screen and Floor
Assembly, page 9.
2. Route gas line (provided by installer) from
equipment shutoff valve to fireplace. Route
flexible gas supply line through one of the
access holes.
NOTICE: Most building codes
do not permit concealed gas
connections. A flexible gas line
is provided to allow accessibility
from the fireplace (see Figure 16).
The flexible gas supply line con-
nection to the equipment shutoff
valve should be accessible.
3. Attach the flexible gas line to gas supply (see
Figure 16). Check tightness of flexible gas
line attached to gas regulator of fireplace (see
Figure 16).
4. Check all gas connections for leaks. See
Checking Gas Connections, page 15.
5. Replace fireplace floor assembly. Feed flexible
gas line into fireplace base area while replacing
fireplace floor assembly. Make sure the entire
flexible gas line is in fireplace base area.
Note: Be careful of wires and components on
underside of fireplace floor. Reattach fireplace
floor assembly with screws removed in step
3 of Removing Fireplace Screen and Floor
Assembly, page 9.
Figure 16 - Attaching Gas Lines Together
From Gas Meter (Natural)
From External Regulator
(Propane/LP)
To Fireplace Gas
Regulator
Equipment
Shutoff Valve
Provided by
Installer
Flexible Gas Line from
Fireplace Gas Regulator