Specifications

28 YORK INTERNATIONAL
SECTION 3
SYSTEM OPERATING PROCEDURES
FIG. 17 - MICROCOMPUTER CONTROL CENTER AND KEYPAD
WARNING
OIL HEATERS
If the oil heater is de-energized during a shut-
down period, it must be energized for 12 hours
prior to starting compressor, or remove all oil and
recharge compressor with new oil. (See “Oil
Charging Procedure”, page 44.)
NOTE: The oil heater is thermostatically con-
trolled and remains energized as long as
the fused disconnect switch to the starter
or Variable Speed Drive is energized.
CHECKING THE OIL LEVEL
IN THE OIL RESERVOIR
Proper operating oil level - the middle of the up-
per sight glass.
If the oil is excessively high after start-up, the
excess oil may be drained from the oil filter drain
valve while the compressor is running.
If oil level is low, oil should be added to the com-
pressor. (See “Oil Charging Procedure”, page 44.)
28050A
LD00457