Desa CD36RN Owner's Operation And Installation Manual page 28

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 51).
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.
Propane/LP
Supply Tank
Figure 50 - External Regulator with Vent
Pointing Down (Propane/LP Only)
8
FIREPLACE INSTALLATION
Continued
External
Regulator
with Vent
Pointing
Down
www.desatech.com
We recommend that you install a sediment
trap/drip leg in supply line as shown in Figure
51. 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 Pipe
Sediment Trap/Drip Leg
Figure 51 - 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 52, page 29).
4. Check all gas connections for leaks. See
Checking Gas Connections, page 29.
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)
Tee
Nipple Joint
116035-01J