Table 29: Display only
Field/LED
name
Access level Description
Oil Pressure
–
Displays the pressure differential between the high sideoil pressure
transducer (compressor bearing input) and the low side oil pressure
transducer (oil sump). The displayed value includes offset pressure
derived from auto-zeroing during the System Prelube. If either of
the transducers used to calculate this differential is out of range, the
display field will show XX.X.
The offset pressure is the pressure differential between the high
oil pressure (HOP) transducer and the low oil pressure (LOP)
transducer outputs during a three (3) second period beginning
ten (10) seconds into the System Prelube. During this time, the
transducers will be sensing the same pressure and their outputs
should indicate the same pressure. However, due to accuracy
tolerances in transducer design, differences can exist. Therefore,
to compensate for differences between transducersand assure
differential pressure sensing accuracy, the offset pressure is
subtracted algebraically from the differential pressure. The offset
pressure calculation will not be performed if either transducer is out
of range. The offset value will be taken as 0 PSI in this instance.
Pre-Rotation
Vanes
Closing LED
–
Displays when the Economizer PRV is closing.
Vane Motor
Switch (LED)
–
Indicates when the vanes are completely closed.
PRV Position
–
This value displays the present position of the Pre-Rotation vanes as
a percentage between 0 and 100%.
PRV
Command
–
Indicateswhat percentage the panel is commanding the Pre-
Rotation Vanes to open.
Phase A, B, C
Current
–
Displays the 3-phase motor current values being read from the Solid
State Starter.
Full Load
Amps
–
Displays the motor current as a percentage of the Full Load Amps
(FLA) value.
Motor Run
(LED)
–
Illuminates when the Primary Compressor is currently running.
Compressor
Status
Service
This value displays the economizer compressor status. The values
are as follows:
•
Stopped
•
Prelube
•
Running
•
Soft Shutdown
•
Coastdown
47
YK-EP Style B Centrifugal Chiller
Содержание 160.87-OM1
Страница 2: ...2 YK EP Style B Centrifugal Chiller ...
Страница 6: ...6 YK EP Style B Centrifugal Chiller ...
Страница 227: ...Figure 72 Sample printout of Status 227 YK EP Style B Centrifugal Chiller ...
Страница 228: ...Figure 73 Sample printout of Status cont YK EP Style B Centrifugal Chiller 228 ...
Страница 229: ...Figure 74 Sample printout of Setpoints 229 YK EP Style B Centrifugal Chiller ...
Страница 230: ...Figure 75 Sample printout of Setpoints cont YK EP Style B Centrifugal Chiller 230 ...
Страница 231: ...Figure 76 Sample printout of Schedule 231 YK EP Style B Centrifugal Chiller ...
Страница 232: ...Figure 77 Sample printout of a Sales order YK EP Style B Centrifugal Chiller 232 ...
Страница 233: ...Figure 78 Sample printout of a Sales order cont 233 YK EP Style B Centrifugal Chiller ...
Страница 234: ...Figure 79 Sample printout of History YK EP Style B Centrifugal Chiller 234 ...
Страница 235: ...Figure 80 Sample printout of History cont 235 YK EP Style B Centrifugal Chiller ...
Страница 236: ...Figure 81 Sample printout of a security log report YK EP Style B Centrifugal Chiller 236 ...
Страница 260: ...Figure 87 Microboard 031 03630 007 Figure 88 Program card 031 03601 002 YK EP Style B Centrifugal Chiller 260 ...