Johnson Controls YORK YK MaxE, Operation Manual

Page: 148 / 184

JOHNSON CONTROLS
148
FORM 160.54-O1
optiView Control Center
sage will not be displayed if the AUTO LUBE setpoint
on the Motor Lubrication Screen enabled.
“Warning – Motor Bearing Lube Required”
(Software version C.MLM.01.14.xxx (and later) or
C.OPT.01.14.306 (and later))
The Operating Hours Since Last Motor Lubrication has
exceeded 1200 hours. This replaces “WARNING – MO-
TOR BEARING LUBE SUGGESTED” above. This is
displayed until manually cleared by the Operator or the
Operating Hours Since Last Motor Lubrication exceed
1400 hours, whereupon it is replaced by the message
“MOTOR – LACK OF BEARING LUBRICATION”
below. The Operator clears this message by entering his/
her initials, name or user ID in Operator Access Level
(or higher) using the Motor Lube Acknowledge key
on the Motor Lubrication Screen. Refer to the Motor
Lubrication Screen for entry instructions. The date and
time of this entry is automatically logged as the “Date
of Last Motor Lubrication” and “Time of Last Motor
Lubrication”. It also resets the “Operating Hours Since
Last Lubrication” to zero. The date this warning occurs
is stored as the “Date of Last Motor Lubrication Warn-
ing or Fault”. With software version C.OPT.01.16.xxx
(and later), this warning message will not be displayed
if the AUTO LUBE setpoint on the Motor Lubrication
Screen enabled.
roUtiNe shUtdoWN Messages
“ REMOTE STOP ”
A shutdown command has been received from a remote
device. Remote Stop commands can be received in
Digital Remote mode via I/O Board TB4-7/8 or in ISN
(Integrated Systems Network) Remote mode via the
MicroGateway serial communications. If the chiller is
running when this occurs, the Pre-rotation Vanes are
driven fully closed prior to shutting down the chiller.
“ LOCAL STOP ”
A local shutdown command has been received by plac-
ing the Keypad Start-Run-Stop/Reset Switch in the stop
(O) position.
“ PLACE COMPRESSOR SWITCH In RUn
POSITIOn ”
The Control Center is in either Digital or ISN (Inte-
grated Systems Network) Remote mode. The Operator
is requested to place the COMPRESSOR Switch in the
RUN position. The Control Center will not accept a
Remote start/stop command unless the switch is in the
RUN position.
While this message is displayed, the Variable Geometry
Diffuser (VGD) is driven to the full open position and
held there until this warning is manually cleared. When
cleared, the VGD returns normal operation.
“ WARnIng – COnDITIOnS OVERRIDE VgD “
(Software version C.MLM.01.14.xxx (and later) or
C.OPT.01.14.306 (and later))
An extreme stall condition has been detected while the
chiller was running. An extreme stall condition exists
when the Stall Detector Voltage (output of the Stall De-
tector Board) exceeds twice the HIGH LIMIT setpoint
for the duration programmed in the EXTREME STALL
DURATION Setpoint (10 to 20 minutes). While this
message is displayed, the compressor Variable Geometry
Diffuser (VGD) is driven to the full open position and
held there until the message is manually cleared. This
protects the VGD ring from possible damage from an
extreme stall condition. This message can be cleared
after the Stall Detector Voltage returns to less than two
times the HIGH LIMIT Setpoint and the WARNING
RESET key is pressed in SERVICE access level.
The Extreme Stall condition is not checked under the
following conditions:
•
While the VGD is in Manual control mode.
•
While the VGD is fully closed (VGD Limit Switch
closed).
•
While the Pre-rotation vanes position is greater than
the PRV VGD INHIBIT Setpoint.
Warning – Motor Bearing Lube Suggested”
(Software version C.MLM.01.14.xxx (and later) or
C.OPT.01.14.306 (and later))
The Operating Hours Since Last Motor Lubrication
has exceeded 1000 hours. This will be displayed until
manually cleared by the Operator or the Operating
Hours Since Last Motor Lubrication exceed 1200 hours,
whereupon it is replaced by the message “Warning
– Motor Bearing Lube Required” below. The Operator
clears this message by entering his/her initials, name or
user ID in Operator Access Level (or higher) using the
Motor Lube Acknowledge key on the Motor Lubrication
Screen. Refer to the Motor Lubrication Screen for entry
instructions. The date and time of this entry is automati-
cally logged as the “Date of Last Motor Lubrication”
and “Time of Last Motor Lubrication”. It also resets the
“Operating Hours Since Last Lubrication” to zero. The
date this warning occurs is stored as the “Date of Last
Motor Lubrication Warning or Fault”. With software
version C.OPT.01.16.xxx (and later), this warning mes-