Maritime Geothermal Compressor W-180-H-P-4S-PP-01

Is there a performance degradation not explained by a refrigeration circuit problem or low loop flow rate?

Loop Disconnection and Flushing

Flush heat exchanger with a lime removing solution

Is the system a warm water open loop with reduced performance?

Check for alarms and faults on the LCD interface

Rectify any problems if alarms are found

Take a picture of the control board and connectors for reference

Remove all green terminal strips from the left side, right side, and bottom of the control board

Remove the red six pin display board connector from the left side of the control board

Remove all connectors from the top of the control board

Remove the control board from its four corner standoffs

Remove any remaining standoffs from the old control board

Carefully remove the new control board from the static bag

Place any cut off standoffs from the old board into the new board

Was there a compressor burn out?

Dispose of refrigerant according to local codes

Remove crankcase heater, leaving electrically connected

Replace the liquid line filter-dryer

Ensure nitrogen is flowing through the system during brazing

Remove the display board cable connector from the control board

Slice each of the display board standoff heads off using a sharp utility knife

Pull the display board from the unit

Remove the display board cable connector from the back of the display board

Place a new display board standoff into each of the four holes in the cabinet

Remove the new display board from the static bag it was shipped in

Connect one end of the display board cable to the back of the display board

Place the display board in position and align the four standoffs into the four holes of the board