Desa CGEFP33PRB - Manual (Page 18)

www.desatech.com 111245-01C 18
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to fireplace.
If pipe is too small, undue loss
of volume will occur.
Installation must include an equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from fireplace (see
Figure 24).
IMPORTANT:
Install equipment shutoff valve
in an accessible location. The equipment shutoff
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. Never use sealant on
flare threads.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Figure 24 - External Regulator with Vent
Pointing Down
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down
Figure 25 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 40.
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
INSTALLATION
Continued
We recommend that you install a sediment trap in
supply line as shown in Figure 25. 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.
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 connec-
tions. A flexible gas line is provided
to allow accessibility from the
fireplace (see Figure 26, page 19).
The flexible gas supply line con-
nection to the equipment shutoff
valve should be accessible.