www.desatech.com
114745-01D
14
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 13).
IMPORTANT:
Install equipment shutoff valve in
an accessible location within 6 feet of the appli
-
ance. The equipment shutoff valve is for turning
on or shutting off the gas to the appliance.
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.
We recommend that you install a sediment trap
in supply line as shown in Figure 13, depending
on your model. 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.
INSTALLATION
Continued
CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting it
to gas piping and/or fittings.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a noncorrosive leak detec-
tion fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: Make sure ex-
ternal regulator has been in-
stalled between propane/LP
supply and heater. See guide-
lines under
Connecting to Gas
Supply
, page 13.
* Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See
Acces-
sories
, page 26.
**Minimum inlet pressure for purpose of input adjustment.
Figure 13 - Gas Connection (Remote-Ready Models Only)
To Gas
Control
Valve
" Minimum
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)
Tee
Pipe
Cap
Joint
Nipple
