TM 3-4230-209-10
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Key
Control or Indicator
Function
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Water Heater Control Panel
1
WATER PRES-
Indicates the pressure of the water being circulated through
the boiler. Normal pressure indications are 60-155 psi. When
SURE gage
the pressure exceeds 200 psi, the pressure relief valve
(safety valve) on the boiler opens and relieves excess pres-
sure.
2-11
