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INSTALLING
Continued
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 pressure, heater regulator
damage could occur. Install external regulator with the vent pointing down as
shown in Figure 13. Pointing the vent down protects it from freezing rain or sleet.
Figure 13 - External Regulator With Vent Pointing Down
Propane/LP
Supply Tank
External
Regulator
Vent Pointing
Down
WARNING
Never connect heater to private (non-utility) gas wells. This gas is
commonly known as well-head gas.
Installation must include a manual 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 14, page 17).
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 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 pressure will occur.
Install sediment trap in supply line as shown in Figure 14, page 17. 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.
CAUTION
Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.