Economizer Oil Pump Screen - York YK-EP Operation And Maintenance Manual

Economizer oil pump screen

Figure 28: Economizer oil pump screen
This screen displays a close-up of the chiller economizer oil sump and provides all the necessary
setpoints for maintaining the Economizer Variable Speed Oil Pump (VSOP). In addition, this screen
allows manual control of the frequency command sent to the VSOP.
Table 71: Display
Field/LED
Access level
name
Oil Pressure
Oil Sump
Temperature
Pump Oil
Pressure
(HOP)
Sump Oil
Pressure
(LOP)
Oil Pump
Run Output
(LED)
82
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
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.
Displays the high side oil pressure measured at the compressor
–
bearing input.
– Displays the low side oil pressure measured at the sump.
– Indicates whether the oil pump is operating.
Primary compressor
YK-EP Style B Centrifugal Chiller