Unit installation

OMRCPMICRO 27
"Stage Up", "Stage Down" - These are momentary operating modes indicating a stage up or stage down is
being initiated by the controller.
"Off: System Sw" mode - Upon start-up the panel will check the front panel "System Switch" position. If the
switch is in the "stop" position, the mode will be "Off: System Sw".
Circuit Status Modes
The operating status of each refrigeration circuit is displayed on the keypad/display when the information is
requested by the operator. Descriptions of each Circuit Status Mode are listed below.
"Off:System Sw" - Off due to System Switch.
"Off: Manual Mode" - Off due to Control Mode Set Point.
"Off: Alarm" - Off due to Alarm Condition.
"Off:PumpDnSw" - Off, the circuit pumpdown switch is in the manual position.
"Off: CycleTime" - Off due to anti-cycle timers.
"Off: Ready" - Off Ready to start or Standby.
"Pumping Down" - The circuit is in the process of pumping down, the solenoid valve is closed.
"Open Solenoid" - A request has been made for the circuit to be energized for cooling or heating, the solenoid
is open and the controller is waiting for the pressure to rise above the LPCutIn set point.
"% Capacity" - Circuit is running, all operating conditions are normal. The circuit percent capacity is
displayed.