Section 4 Operational Maintenance; Fig. 9 - Charging Oil Reservoir With Oil - York MaxE YK Series Operating & Maintenance

OIL RETURN SYSTEM
The oil return system continuously maintains the
proper oil level in the compressor oil sump. (See Fig.
9.)
High pressure condenser gas flows continuously
through the eductor inducing the low pressure, oil rich
liquid to flow from the evaporator, through the dehy-
drator to the compressor sump.
CHANGING THE DEHYDRATOR
To change the dehydrator, use the following pro-
cedure:
SOLENOID VALVE
FIG. 9 – OIL RETURN SYSTEM
YORK INTERNATIONAL
SECTION 4
OPERATIONAL MAINTENANCE
CHECK VALVE
1. Shut the stop valves on the condenser gas line,
oil return line to rotor support and inlet end of the
dehydrator.
2. Remove the dehydrator. Refer to Fig. 9.
3. Assemble the new filter-drier.
4. Open condenser stop valve and check dehydrator
connections for refrigerant leaks.
5. Open all the dehydrator stop valves to allow the
liquid refrigerant to flow through the dehydrator
and condenser-gas through the eductor.
COMPRESSOR
STOP VALVE
FORM 160.54-O2(1102)
OIL EDUCTOR BLOCK
SOLENOID VALVE
DEHYDRATOR
STOP VALVE
LD08578
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