York YK - Page 106

JOHNSON CONTROLS
FORM 160.75-EG1 (519)
106
(Filter Option Only)
6. Harmonic lter – high heat-sink temperature
7. Harmonic lter – high total demand distribution
G. Cycling shutdowns enunciated through the display and the status bar, and consists
of system status, system details, day, time, cause of shutdown, and type of restart
required. Cycling shutdowns with a xed speed drive shall include:
1. Multi-unit cycling – contacts open
2. System cycling – contacts open
3. Oil – low temperature differential
4. Oil – low temperature
5. Control panel – power failure
6. Leaving chilled liquid – low temperature
7. Leaving chilled liquid – ow switch open
8. Motor controller – contacts open
9. Motor controller – loss of current
10. Power fault
11. Control panel – schedule
12. Starter – low supply line voltage (SSS option)
13. Starter – high supply line voltage (SSS option)
14. Proximity probe – low supply voltage (K compressors)
15. Oil – variable speed pump – drive contacts open
H. Cycling shutdowns with a VSD shall include:
1. VSD shutdown – requesting fault data
2. VSD – stop contacts open
3. VSD – initialization failed
4. VSD – high phase A, B, C instantaneous current
5. VSD – Phase A, B, C gate driver
6. VSD – single phase input power
7. VSD – high DC bus voltage
8. VSD – pre charge DC bus voltage imbalance
9. VSD – high internal ambient temperature
10. VSD – invalid current scale selection
Guide Specifications (Cont'd)