38
GAS LINE CONNECTION
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Series number.
FACTORY INSTALLED
1 1/4” x 1” REDUCER
COUPLING AND NIPPLE
SUPPLY GAS
CONNECTION
SUPPLY GAS LINE CONNECTION
(500,000 BTU/HR MODEL SHOWN)
FIELD SUPPLIED 1 1/2” x 1 1/4”
REDUCER COUPLING AND 1 1/4”
PIPE NIPPLE INSTALLED ON
500,000 BTU/HR NATURAL
GAS MODELS
LOW GAS
PRESSURE
SWITCH
24 VAC
GAS VALVE
TO MAIN
BURNER
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Figure 53
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installation.
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page 37.
8. Install a Main Gas Shutoff valve in the supply gas line as
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GAS LINE LEAK TESTING
Fire and Explosion Hazard
Leak test before placing the
water heater in operation.
Disconnect gas piping and main
gas shutoff valve before leak
testing.
Install sediment trap in
accordance with NFPA 54.
Use joint compound or Teflon tape
compatible with propane gas.
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heater they supply. See Table 5 on page 13.
The Maxitrol 325-7L supply gas regulator or equivalent is
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