GE E4H-CE Series - Manual (Page 21)

3.3 Daily Start-Up
Check the machine to insure isolation valves are in the proper positions for operation.
To turn the RO ON, press the RO button so it is in the ON position. If the alarm light is
lit, push the “Alarm Reset” switch on the control enclosure and the alarm button on the
OIT. If the alarm light stays lit, check the RO for an alarm condition. Otherwise, the main
inlet valve will open, and the high-pressure pump will turn on. The high-pressure pump
will not start if there is insufficient inlet pressure [< 0.8 bar (< 12 psi)].
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