Johnson Controls YORK OPTIVIEW CONTROL CENTER, Руководство по эксплуатации

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JOHNSON CONTROLS
105
SECTION 3 - OPTIVIEW DISPLAY MESSAGES
FORM 160.10-O1
ISSUE DATE: 4/27/2018
3
Place Compressor Switch In Run
Position
The control center is in either digital or ISN (Integrated
Systems Network) remote mode. The operator is re-
quested 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.
CYCLING SHUTDOWN MESSAGES
Multiunit Cycling – Contacts Open
The multiunit cycling contacts connected to I/O board
TB4-9, have opened to initiate a cycling shutdown.
The pre-rotation vanes are driven fully closed prior to
shutting down the chiller. The chiller will automati-
cally restart when the contacts close.
System Cycling – Contacts Open
The system cycling contacts connected to I/O board
TB4-13, have opened to initiate a cycling shutdown.
The pre-rotation vanes are driven fully closed prior to
shutting down the chiller. The chiller will automati-
cally restart when the contacts close.
Oil – Low Temperature
This message indicates the oil temperature has de-
creased below 55.0°F. The chiller will automatically
restart when the temperature increases above 71.0°F.
Control Panel – Power Failure
A power failure to the OptiView Control Center has
occurred. If the power failure occurred while the chill-
er was running, the control center will automatically
restart (auto-restart enabled) when power is restored.
However, if the duration of the power failure was less
than the applicable SYSTEM COASTDOWN period
when power is restored, the remainder of the coastdown
will be performed. This message indicates a cycling
shutdown when displayed in orange characters and a
safety shutdown when displayed in red characters. The
control center is configured for chiller auto-restart or
manual restart after power failure by a qualified service
technician following instructions in the
OptiView Con-
trol Center Retrofit Kit - Trane Service Manual (Form
160.10-M1).
Leaving Chilled Liquid – Low Temperature
The leaving chilled liquid temperature has reached the
programmed shutdown temperature setpoint. The pre-
rotation vanes are driven fully closed prior to shutting
down the chiller, if running. The chiller will automati-
cally restart when the liquid temperature increases to
the programmed restart temperature setpoint.
Leaving Chilled Liquid – Flow Switch Open
The chilled liquid flow switch has remained open for 2
continuous seconds while the chiller was running or failed
to close during the system prelube period. The chiller will
automatically restart when the flow switch closes.
Condenser – Flow Switch Open
The condenser water flow switch has remained open
for 2 continuous seconds while the chiller was running.
This check is bypassed for the first thirty (30) seconds
of SYSTEM RUN. The chiller will automatically re-
start when the flow switch closes.
Motor Controller – Contacts Open
This indicates the CM-2 current module (E-M starter
applications) has shutdown the chiller. If a condition
that places the starter or motor at risk is detected, the
CM-2 module opens the motor controller contacts CM
to initiate a shutdown. The CM-2 board LED’s will il-
luminate to identify the specific fault that has occurred.
The chiller will automatically restart when the motor
controller contacts close. Refer to the OptiView Con-
trol Center Retrofit Kit - Trane Service Manual (Form
160.10-M1) for more information.
Starter – Low Supply Line Voltage
This message indicates that a voltage for a phase is low-
er than the allowable limit for more than twenty (20)
seconds. This fault can occur at chiller startup or after
the chiller has been running for one minute. The fault is
released when the voltage for the phase increases above
the limit starting. Refer to
Table 5
.
TABLE 5 - STARTER - LOW SUPPLY LINE
VOLTAGE LIMITS
SUPPLY
VOLTAGE
LIMIT
STARTING
LIMIT
RUNNING
200 - 208 Volts 174 V 160 V
220 - 240 Volts 200 V 185 V
380 Volts 331 V 305 V
400 Volts 349 V 320 V
415 Volts 362 V 335 V
440 - 480 Volts 400 V 370 V
550 - 600 Volts 502 V 460 V