JOHNSON CONTROLS
36
FORM 160.69-O2
ISSUE DATE: 9/30/2020
SECTION 4 – OPERATIONAL MAINTENANCE
THE OIL CHARGE
The nominal oil charge for all YD chillers is 45 gal-
lons of type “York K”. If operating at ambient temps >
104˚F, use "YORK H" oil.
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
During operation the compressor oil level must be
maintained in the "Operating Range" identified 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 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
) 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 fills 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 reser-
voir is in the “Over Full” region of the oil level
indicator label. Close the charging valve and dis-
connect 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 refrig-
erant in the oil to a minimum.
When the oil reservoir is initially charged with oil, the
oil pump should be started manually to fill the lines,
passages, oil cooler and oil filter. 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.
FIGURE 8 -
CHARGING OIL RESERVOIR WITH OIL
LD08579
LD08648
OIL CHARGING VALVE
Summary of Contents for YD A
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