OceanAire 2OACH3634 Manual

Three Phase Monitor

Three-Phase units can be equipped with monitors for compressor protection.  
The Oceanaire Three-phase Monitor safeguards the unit against incorrect 
compressor rotation, low-voltage and/or loss of power in any one of the power 

legs.  The monitor is installed in the control box and is equipped with an LED 
for diagnosis of an improper electrical condition (see diagrams below).  When 
power is connected, the compressor WILL NOT power up, until the monitor 

start delay has been timed out.  If the compressor does not power up, an 
electrical condition may need to be addressed.  Remove the control box cover 
and check the observe the LED on the phase monitor.  The LED signals the 
following:

GREEN - Proper Operation

RED/GREEN-BLINKING signals reverse phase rotation.  Switch any two of the 
power leads for the unit, NOT THE MONITOR LEADS, and re-start.

RED-BLINKING signals improper voltage and/or phase loss.  Correct the 
power problem, then re-start the unit.

In the event of a power interruption, the unit will re-set to a start-up condition.  

The Phase Monitor will not allow the compressor to start until power is 
corrected.

GREEN-BLINKING - Start delay, 120 sec.

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