THE OIL CHARGE
The nominal oil charge for the compressor is 20 gal., type “F” for
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 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
FORM
plate. (See Fig. 20.) 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 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. (See “Section 3, System Operating Procedures”.) 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 fill the lines, passages, oil cooler and oil filter. 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 upper sight glass.
OIL CHARGING VALVE
25721ALD00472
FIG. 20 – CHARGING OIL RESERVOIR WITH OIL
YORK INTERNATIONAL | 43 |
