Maritime Geothermal Compressor W-100-H-P-2S-CC-01

Connect the vacuum pump to the charging manifold

Start the vacuum pump and open the charging manifold valves

Monitor the vacuum gauge until it remains at less than 500 microns for at least 1 minute with the vacuum pump valve closed

Close the charging manifold valves

Shut off and disconnect the vacuum pump

Place a refrigerant tank with the proper refrigerant on a scale and connect it to the charging manifold

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 performance reduced for warm water open loop systems?

Place the unit in SERVICE mode via the PC App or LCD interface

Ensure electrical power is not turned off at the breaker panel

Connect the refrigerant recovery unit to the heat pump’s internal service ports via a refrigeration charging manifold and to a recovery tank

Plan to dispose of refrigerant if there was a compressor burnout

Ensure refrigerant to water heat exchangers have full flow or are completely drained

Start circulation pumps via building control system if necessary

Ensure all hose connections are properly purged of air

Start the refrigerant recovery as per the instructions in the recovery unit manual

Was there a compressor burnout?

Disconnect piping and remove crankcase heater

Replace the compressor and liquid line filter-dryer

Ensure nitrogen is flowing during brazing procedures

If there was a compressor burnout, charge the unit with new refrigerant and operate for 2 hours

Charge the unit with new refrigerant

Operate the unit continuously for 2 hours

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

Detach the control board from its four corner standoffs

Remove any remaining standoffs from the old control board

Remove the new control board from the static bag and place old standoffs on it

Align and snap the new control board into the four corner standoffs in the electrical box