Controls
RTAF-SVX001A-EN
39
Alarms
You can use the display to view alarms and to reset them.
Alarms are communicated to the display immediately
upon detection.
Viewing the Alarms Screen
Touch the Alarms button in the main menu area (
Figure 19,
p. 37
) to view the Alarms screen. A table of active alarms
appears that is organized chronologically with the most
recent at the top of the list, as shown in
Figure 21
. This
example shows the default view, which appears each time
you return to the screen.
Note:
A page number appears in the lower right corner of
the screen. If a screen contains more than one
page, up/down arrows also appear for viewing the
other pages
The Alarms screen is accessible by depressing the Alarms
enunciator. A verbal description will be provided.
A scrollable list of the last active Alarms is presented.
Performing a “Reset Alarms” will reset all active Alarms
regardless of type, machine or circuit. The scrollable list
will be sorted by time of occurrence.
If a informational warning is present, the “Alarms” key will
be present but not flashing. If a Alarm shutdown (normal
or immediate) has occurred, the “Alarm” key will display
that is flashing. If no Alarms exist, the “Alarm” key will not
be present.
Reports
You can use theTracer display to view a variety of reports
and to create and edit a custom report. All reports contain
live data that refreshes every 2–5 seconds.
Viewing the Reports Screen
Touch the Reports button in the main menu area (Figure 4)
to view the Reports screen. The Reports screen contains
the following buttons:
•
Custom Report1
•
Custom Report2
•
Custom Report3
•
Evaporator
•
Condenser
•
Compressor
•
Motor
•
About
•
Operating Modes
Shutting Down
The chiller is still running but shutdown is imminent. The chiller is going through a compressor
run-unload or extended operational pumpdown of the lag circuit/compressor (or all circuits
simultaneously).
Evaporator Water Pump Off Delay
min:sec
The evaporator water pump is continuing to run past the shutdown of the compressors, executing the pump
off delay timer.
Local Stop, Maximum Capacity
Chiller is in the process of being stopped by TD7 Stop button command
Misc
These sub-modes may be displayed in most of the top level circuit modes.
Manual Evaporator Pump Override
The evaporator water pump relay is on due to a manual command.
Diagnostic Evaporator Water Pump
Override
The evaporator water pump relay is on due to a diagnostic.
Manual Compressor Control Signal
Chiller capacity control is being controlled by Operator Display or Service Tool.
Noise Reduction Request
The Noise Reduction Request feature has been activated. If the unit is running, fans will be running at lower
speed.
Chilled Water Control
These modes are mutually exclusive and they indicate that the chiller is controlling to the active chilled
water setpoint, or the active ice termination setpoint respectively. Chiller is running to provide a chilled
water temperature per the active chilled water setpoint (may be as arbitrated from various sources). (For
cooling only units, this mode may be suppressed.)
Ice Building
Evaporator Water Pump X Locked Out Evaporator Water Pump X has been locked out by manual override from TD7 or TU.
Waiting for BAS Communications
The chiller has not detected communication with the BAS. This mode is only supported by LonTalk systems.
Depending on configurations and Setpoint source setting, lack of communication may cause the chiller to
shut down and or become inhibited from starting, but if so, the “Starting is Inhibited by BAS” mode will
also occur.
Table 18.
Operating modes (continued)
Chiller Modes
Description
Figure 21.
Alarm screen
