www.desatech.com
121486-01F
14
We recommend that you install a sediment
trap in supply line as shown in Figure 17.
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
gas control. Hold gas fitting with
wrench when connecting it to
gas piping and/or fittings.
INSTALLATION
Continued
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 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. Lo-
cate NPT tap within reach for test gauge hook
up. NPT tap must be upstream from heater
(see Figure 17).
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
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 heater valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Propane/LP
Supply Tank
External Regulator
Figure 16 - External Regulator With Vent
Pointing Down
Vent
Pointing
Down
Pipe Cap Tee
Nipple
Joint
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input
adjustment.
Figure 17 - Gas Connection
Gas Control
3" Min.
Sediment Trap
Propane/
LP
- From
External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
Natural
-
From Gas
Meter (5"
W.C.** to
10.5" W.C.
Pressure)
CSA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
