JOHNSON CONTROLS
60
FORM 160.81-NOM1
ISSUE DATE: 10/3/2020
SECTION 5 – MAINTENANCE
Oil Charging Procedure
The oil should be charged into the oil separator using
the YORK Oil Charging Pump – YORK Part No. 070-
10654. To charge oil, proceed as follows:
YORK H Oil is used in T0 through T3
units.
1. The unit should be shut down.
Note: If charging oil to restore the correct
level – the unit may be kept in operation.
2. Immerse the suction connection of the oil charg-
ing pump in a clean container of new oil and con-
nect the pump discharge connection to the oil
charging valve. 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 oil separator is about
midway in the upper sight glass. Then, close the
charging valve and disconnect the hand oil pump.
See Figure 23 on page 59.
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.
5. The immersion oil heater will maintain the oil
temperature between 105°F (40°C) and 115°F
(46°C).
OIL TEMPERATURE CONTROL
Automatic oil temperature control is accomplished by
liquid being injected into the compressor / motor as-
sembly. A solenoid valve will be opened when the dis-
charge temperature increases to 160°F (71ºC).
OIL FILTER
A single oil filter is provided as standard equipment
and dual oil filter arrangements are available as op-
tional equipment. The oil filter(s) are a replaceable 3
micron cartridge type oil filter. Use only YORK ap-
proved oil filter elements. See Figure 24 on page 60.
The oil filter element should be changed after the first
200 hours of operation and then as necessary thereaf-
ter. Always replace the oil filter element and O-ring on
a yearly maintenance schedule.
FIGURE 24 - OIL FILTERS
LD08913
Compressor
Oil
Inlet
Oil
Inlet
Filter
Left Filter
Right Filte
3-Way Ball Valve
To Compressor
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