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York YK M3 M3 G4 THRU YK S6 S4 J2, YK LB LB G4 THRU YK SE SC J4 Compressor, Electrical Controls

Models: YK M3 M3 G4 THRU YK S6 S4 J2, YK LB LB G4 THRU YK SE SC J4 YK M3 M3 G4

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COMPRESSOR

FORM 160.49-O2

COMPRESSOR

Maintenance for the compressor assembly consists of checking the operation of the oil return system and changing the dehydrator, checking and changing the oil, checking and changing the oil filters, checking the operation of the oil heater, checking the operation of the oil pump, and observing the operation of the com- pressor.

Internal wearing of compressor parts could be a seri- ous problem caused by improper lubrication, brought

about by restricted oil lines, passages, or dirty oil fil- ters. If the unit is shutting down on (HOT) High Oil Temperature or Low Oil Pressure (OP), change the oil filter element. Examine the oil filter element for the pres- ence of aluminum particles. If aluminum particles are noticeable and the same conditions continue to stop the unit operation after a new filter element is installed, notify the nearest YORK office to request the presence of a YORK Service man.

ELECTRICAL CONTROLS

For information covering the MicroComputer Control Center operation, refer to “Section 2”.

The operating points of the pressure and temperature cut outs are shown in the Wiring Diagrams. These diagrams also contain a starting and stopping sequence diagram.

YORK INTERNATIONAL

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York YK M3 M3 G4 THRU YK S6 S4 J2, YK LB LB G4 THRU YK SE SC J4 operation manual Compressor, Electrical Controls
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FAQ

What maintenance is required for the compressor?

Maintenance for the compressor assembly includes checking the operation of the oil return system, changing the dehydrator, checking and changing the oil, checking and changing the oil filters, checking the operation of the oil heater, checking the operation of the oil pump, and observing the operation of the compressor.

What should be done if the unit shuts down on HOT High Oil Temperature or Low Oil Pressure OP?

If the unit is shutting down on HOT High Oil Temperature or Low Oil Pressure OP, the oil filter element should be changed. If the issue persists after a new filter element is installed, it is advisable to contact the nearest YORK office to request the presence of a YORK Service man.

How to obtain information on the operation of the MicroComputer Control Center?

For information on the operation of the MicroComputer Control Center, refer to Section 2 of the manual.