York MaxE YK, Operating And Maintenance, Page: 22 / 36

YORK INTERNATIONAL
FORM 160.73-O2 (605)
22
THE OIL CHARGE
The nominal oil charge for all H, J, & P6-P9 YK com-
pressors is 20 gallons, and for P1-P5 & Q7 YK compres-
sors is 10 gallons of type “York K”.
New YORK Refrigeration oil must be used in the cen-
trif u gal compressor. Since oil absorbs moisture when
exposed to the atmosphere, it should be kept tightly
capped until used.
OIL CHARGING PROCEDURE
During operation the compressor oil level must be
maintained in the "Operating Range" identifi ed on the
vertical oil level indicator. If the oil level falls into the
lower sight glass, it is necessary to add oil to the com-
pressor oil reservoir. The oil should be charged into
the oil reservoir using the YORK Oil Charg ing 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. 10.) 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 fi 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 er voir
is in the “Over Full” region of the oil level indicator
label. Close the charging valve and disconnect the
hand oil pump.
4. As soon as oil charging is complete, close the pow er
supply to the starter to energize the oil heater. This
will keep the concentration of refrigerant in the oil
to a minimum.
When the oil reservoir is initially charged with oil, the
oil pump should be started manually to fi ll the lines,
pas sag es, oil cooler and oil fi lter. This will lower the oil
level in the reservoir. It may then be necessary to add
oil to bring the level back into the “Operating Range”
of the oil level indicator label.
FIG. 10 – CHARGING OIL RESERVOIR WITH OIL
LD08579
Operational Maintenance
LD08648
OIL CHARG ING VALVE