York YK Style H Operation Manual page 193

See VSD – High Phase A Inverter Heatsink Temperature message above.
VSD – High Converter Heatsink Temperature
(Applicable to VSD with Part Number 371-02767-XXX (60 Hz) and 371-03700-XXX (50 Hz))
This shutdown will occur if the heatsink temperature exceeds 170°F. The chiller can be started after
the fault condition clears and the Clear Fault key is pressed on the display.
VSD – High Inverter Baseplate Temperature
(Applicable to VSD with Part Number 371-02767-XXX (60 Hz) and 371-03700-XXX (50 Hz))
This shutdown will occur if the baseplate temperature exceeds 175°F. The chiller can be started
after the fault condition clears, the RESET button on the VSD Logic Board is pressed and the Clear
Fault key is pressed on the display.
VSD – High Phase A Inverter Baseplate Temperature
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP 50 Hz))
The chiller has shutdown because the baseplate temperature has increased to greater than 158°F.
The chiller can be started after the fault condition clears, the RESET button on the VSD Logic Board
and the Clear Fault key is pressed on the display.
VSD – High Phase B Inverter Baseplate Temperature
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP 50 Hz))
The chiller has shutdown because the baseplate temperature has increased to greater than 158°F.
The chiller can be started after the fault condition clears, the RESET button on the VSD Logic Board
and the Clear Fault key is pressed on the display.
VSD – High Phase C Inverter Baseplate Temperature
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP 50 Hz))
The chiller has shutdown because the baseplate temperature has increased to greater than 158°F.
The chiller can be started after the fault condition clears, the RESET button on the VSD Logic Board
and the Clear Fault key is pressed on the display.
VSD – Precharge Lockout
If the VSD fails to make pre-charge, the pre-charge relay shall drop out for 10 seconds during which
time the VSD's fans and water pumps shall remain energized in order to permit the pre-charge
resistors to cool. Following this 10-second cool down period, pre-charge shall again be initiated.
The VSD shall attempt to make pre-charge 3 consecutive times. If the VSD fails to make pre-charge
on 3 consecutive tries, the unit will shut down, lockout and display this message. The chiller can be
started after the Clear Fault key is pressed on the display.
Harmonic Filter – High Heatsink Temperature
(Style D VSD)
The Harmonic Filter power assembly has one heatsink transmitter on the 503 HP units, and two
heatsink transmitter on the 790 HP units. If the temperature on any heatsink exceeds 167°F, the
unit will shut down. This message is usually an indication of a low coolant level in the VSD cooling
loop. The chiller can be started after the fault condition clears, the OVERTEMP RESET button on the
Filter Logic Board is pressed and the Clear Fault key is pressed on the display.
Harmonic Filter – High Baseplate Temperature
(Applicable to VSD with part number 371-02767-xxx (60 Hz) and 371-03700-xxx (50 Hz))
Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center 193