Economizer System Screen - York YK-EP Operation And Maintenance Manual

Economizer system screen

Figure 8: Economizer system screen
This screen displays all parameters related to the Economizer feature.
The YK-EP Economizer feature is an optional feature and if so equipped, it must be enabled on the
SETUP Screen. Once enabled, this screen is accessible from the System Screen.
Table 10: Display only fields
Field/LED name
Discharge Temperature
Primary % Full Load Amps
Primary Current Limit
Primary PRV Position
Primary Motor Run (LED)
Oil Sump Temperature
Primary Oil Pressure
Economizer Motor Run
(LED)
28
Description
Displays the temperature of the refrigerant vapor at the discharge
of the Primary Compressor before the refrigerant enters the
condenser.
Displays the percentage of full load amps (FLA) utilized by the
primary motor.
Displays the primary active motor current limit in percentage of Full
Load Amps.
Displays how open the PRV vanes are in percentage from 100% (fully
open) to 0% (fully closed).
Illuminates when the Primary Compressor is currently running.
Displays the temperature of the oil in the sump.
Display indicates the pressure differential between the high side
oil pressure transducer (primary compressor) and the low side oil
pressure transducer (oil sump). The displayed value includes offset
pressure derived from auto-zeroing during the system prelube.
Illuminates when the Economizer Compressor is currently running.
YK-EP Style B Centrifugal Chiller