YORK INTERNATIONAL
22
FORM 160.54-O2(1102)
FORM 160.54-O2(1102)
23
YORK INTERNATIONAL
THE OIL CHARGE
The nominal oil charge for all YK compressors is 20
gal., type “York K”.
New YORK Refrigeration oil must be used in the cen-
trifugal compressor. Since oil absorbs moisture when
exposed to the atmosphere, it should be kept tightly
capped until used.
OIL CHARGING PROCEDURE
The compressor oil level must be maintained between
the oil reservoir’s upper and lower sight glasses. If the
oil level falls into the lower sight glass, it is neces-
sary to add oil to the compressor oil reservoir. The
oil should be charged into the oil reservoir using the
YORK Oil Charging Pump – YORK Part No. 070-
10654. To charge oil into the oil reservoir, proceed as
follows:
1. The unit must be shut down.
2. Immerse the suction connection of the oil charging
pump in a clean container of new oil and connect
the pump discharge connection to the oil charging
valve (A) located on the remote oil reservoir cover
plate. (See Fig. 9.) Do not tighten the connection
at the charging valve until after the air is forced
out by pumping a few strokes of the oil pump.
This lls the lines with oil and prevents air from
being pumped into the system.
3. Open the oil charging valve and pump oil into the
system until oil level in the compressor oil res-
ervoir is about midway in the upper sight glass.
Then, close the charging valve and disconnect the
hand oil pump.
4. As soon as oil charging is complete, close the
power supply to the starter to energize the oil
heater. This will keep the concentration of refriger-
ant in the oil to a minimum.
When the oil reservoir is initially charged with oil, the
oil pump should be started manually to ll the lines,
passages, oil cooler and oil lter. This will lower the
oil level in the reservoir. It will then be necessary to
add oil to bring the level back to the center of the up-
per sight glass.
FIG. 10 – CHARGING OIL RESERVOIR WITH OIL
LD08579
25721A
OIL CHARGING VALVE
Operational Maintenance
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