Oil Sump Screen - York YK-EP Operation And Maintenance Manual

Oil sump screen

Figure 27: Oil sump screen
This screen displays a close-up of the chiller oil sump and provides all the necessary setpoints for
maintaining the Variable Speed Oil Pump (VSOP). In addition, this screen allows manual control of
the frequency command sent to the VSOP.
Table 68: Display only
Field/LED
Access level
name
Oil Pressure
Oil Sump
Temperature
Oil –
Saturated
Condenser
Temperature
Differential
Pump Oil
Pressure
(HOP)
YK-EP Style B Centrifugal Chiller
Description
Displays the pressure differential between the high side oil
pressure transducer (output of oil filter) and the low side oil
pressure transducer (compressor housing). The displayed value
– includes offset pressure derived from auto-zeroing during the
System Prelube. (Refer to explanation of auto-zeroing in
compressor screen). If either of the transducers used to calculate
this differential is out of range, the display field will show XX.X.
– Displays the temperature of the oil in the sump.
(Variable Speed Oil Pump Only) Displays the difference between the
Oil Sump Temperature and the Saturated Condenser Temperature.
–
This parameter is useful when analyzing oil heater operation since it
is used in the control of the oil heater.
Displays the high side oil pressure measured at the compressor
–
bearing input.
Primary
79