Desa Tech CSPBNT EN - Manual (Page 10)

www.desatech.com 111487-01D 10
For propane/LP units, the installer must supply
an external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
incoming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pres-
sure, heater regulator damage could occur. Install
external regulator with the vent pointing down as
shown in Figure 7. Pointing the vent down protects
it from freezing rain or sleet.
CAUTION: For propane/LP
units, use only new, black iron
or steel pipe. Internally-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 heater. 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 heater (see Figure 8).
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 heater valves.
INSTALLATION
Continued
Figure 6 - Gas Regulator Location and
Gas Line Access Into Stove Cabinet
Back
Stove
Panel
Front
of
Stove
Unit
Gas Inlet
Connection
Access
Product
Identification
Label Gas Log
Heater
Back View Side View
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 8. Locate sediment
trap where it is within reach for cleaning. Install
in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into
heater controls. If sediment trap is not installed or
is installed wrong, heater may not run properly.
CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting it
to gas piping and/or fittings.
Figure 8 - Gas Connection
3"
Minimum
Sediment Trap
Gas
Regulator
(Propane/LP)
From
External
Regulator
(11"
W.C.** to
14" W.C.
Pressure)
CSA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
Approved
Flexible Gas
Hose (if allowed
by local codes)
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories , page 19.
** Minimum inlet pressure for purpose of input
adjustment.
Tee Pipe Cap
Joint Nipple
Figure 7 - External Regulator For
Propane/LP Gas With Vent Pointing Down
Propane/LP
Supply Tank
Vent
Pointing
Down
External
Regulator