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INSTALLATION
CONNECTING TO GAS SUPPLY
WARNING: A qualified
service person must connect
heater to gas supply. Follow all
local codes.
WARNING: This appliance
"
requires a 3/8
NPT (National
Pipe Thread) inlet connection
to the pressure regulator.
CAUTION: Never con-
nect heater private (non-utility)
gas well. This gas is commonly
known as well-head gas.
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 wa-
ter. If you do not reduce incoming gas
pressure, heater regulator damage
could occur. Install external regulator
with the vent pointing down as shown
in Figure 12. Pointing the vent down
protects it from freezing rain or sleet.
Figure 12 - External Regulator with
Vent Pointing Down
WA R N IN G : Do not over
t i g h t e n g a s c o n n e c t i o n s .
Figure 13 -Gas Connection
*A CSA/AGA design-certified equipment shutoff valve with 1/8
tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA/AGA design-certified equipment shutoff valve from
your dealer. See Accessories, page 17.
CAUTION: 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 large enough
diameter to allow proper gas vol-
ume to heater. If pipe is too small,
undue loss of pressure will occur.
Typical Inlet Pipe Diameters
All models up to 20,000 BTU's use
3/8'' or greater pipe;
All models 25,000 BTU's and higher,
use 1/2" or greater pipe.
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 an equipment
shutoff valve in an accessible
location. The equipment shutoff
valve is for turning on or shutting
off the gas to the appliance.
9
Apply pipe joint sealant lightly to
male threads. This will prevent
excess sealant from going into
pipe. Excess sealant in pipe could
result in clogged heater valves.
CAUTION: Use pipe joint
sealant that is resistant to
propane gas.
Install sediment trap in supply line
as shown in Figure 13. Locate sedi-
ment trap where it is within reach for
cleaning. 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.
IMPORTANT: Hold pressure
regulator with wrench when
connecting it to gas piping and/or
fittings.
"
NPT
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