ESIE10-01 Functional Control
Part 2 – Functional Description 2–49
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Manual control The EXV position can be set manually. Manual control can only be selected when the EXV state is
Pressure or Superheat control. At any other time, the EXV control set point is forced to auto.
When EXV control is set to manual, the EXV position is equal to the manual EXV position setting. If
set to manual when the circuit state transitions from run to another state, the control setting is
automatically set back to auto. If EXV control is changed from manual back to auto while the circuit
state remains run, the EXV state should go back to the normal operations if possible or to pressure
control to limit maximum operating pressure.
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