Johnson Controls YORK YK MaxE, Operation Manual

Page: 164 / 184

JOHNSON CONTROLS
164
FORM 160.54-O1
optiView Control Center
“ VSD – 105% MOTOR CURRENT OVERLOAD ”
This shutdown is generated by the VSD Logic Board
and it indicates that a motor overload has occurred. The
shutdown is generated when the VSD Logic Board has
detected that at least 1 of the 3 output phase currents has
exceeded 105% of the chiller Full Load Amps (FLA)
value for greater than 7 seconds. The chiller FLA value
is set by adjustment of the FLA potentiometer on the
VSD Logic Board. The chiller can be started after the
RESET push-button on the VSD Logic Board is pressed
and the COMPRESSOR switch is placed in the Stop-
reset position (O).
“ VSD – HIgH PHASE A InVERTER HEATSInK
TEMPERATURE ”
(Style D VSD)
This shutdown will occur if the heatsink temperature
exceeds 158°F on any of the output pole assemblies.
This shutdown will seldom occur. In most cases where
the coolant temperature has risen abnormally, the VSD
will shut down on “Ambient Temperature” @ 140.0°F
before the heatsinks can reach 158°F. If this message
is displayed, make sure there is adequate coolant level,
ascertain the pump is operating when the chiller is run-
ning, and check the strainer in the primary of the heat
exchanger for clogs and silt. The chiller can be started
after the fault condition clears, the RESET button on the
VSD Logic Board is pressed and the COMPRESSOR
switch is placed in the Stop-reset position (O).
“ VSD – HIgH PHASE B InVERTER
HEATSInK TEMPERATURE
”
(Style D VSD)
See Phase A message above.
“ VSD – HIgH PHASE C InVERTER
HEATSInK TEMPERATURE ”
(Style D VSD)
See Phase A message above.
“ VSD – HIgH COnVERTER HEATSInK TEM-
PERATURE ”
(Style D VSD)
See Phase A message above.
“VSD – HIgH COnVERTER HEATSInK
TEMPERATURE”
(Applicable to VSD with Part Number 371-02767-XXX
(60 Hz) and 371-03700-XXX (50 Hz))
(If compressor other than “P”, requires Flash Memory
Card version C.MLM.01.05A.xxx and later)
This shutdown will occur if the heatsink temperature
exceeds 170°F. The chiller can be started after the fault
condition clears and the COMPRESSOR Switch is
placed in the Stop-reset (O) position.
“VSD - HIgH InVERTER BASEPLATE
TEMPERATURE”
(Applicable to VSD with Part Number 371-02767-XXX
(60 Hz) and 371-03700-XXX (50 Hz))
(If compressor other than “P”, requires Flash Memory
Card version C.MLM.01.05A.xxx and later)
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 COMPRESSOR Switch is
placed in the Stop-reset position (O).
“VSD – HIgH PHASE A InVERTER BASEPLATE
TEMPERATURE ”
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP
50 Hz) (Flash Memory Card version C.MLM.01.08.xxx
and later)
The chiller has shutdown because the Baseplate tem-
perature has increased to greater than 158ºF. The chiller
can be started after the fault condition clears, the RESET
button on the VSD Logic Board and the COMPRESSOR
switch is placed in the stop-reset position (O).
“VSD – HIgH PHASE B InVERTER BASEPLATE
TEMPERATURE”
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP
50 Hz) (Flash Memory Card version C.MLM.01.08.xxx
and later)
The chiller has shutdown because the Baseplate tem-
perature has increased to greater than 158ºF. The chiller
can be started after the fault condition clears, the RESET
button on the VSD Logic Board and the COMPRESSOR
switch is placed in the stop-reset position (O).
“VSD – HIgH PHASE C InVERTER BASEPLATE
TEMPERATURE”
(VSD part number 371-03789-xxx (503HP 60 Hz; 419HP
50 Hz) (Flash Memory Card version C.MLM.01.08.xxx
and later)
The chiller has shutdown because the Baseplate tem-
perature has increased to greater than 158ºF. The chiller
can be started after the fault condition clears, the RESET
button on the VSD Logic Board and the COMPRESSOR
switch is placed in the stop-reset position (O).