Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual page 297

Table 10L — Machine Alerts
Primary Secondary
Message Message
High Amps at Shut-
Recycle Alert
down
Leaving Cond Water
Sensor Fault
Temp
Alert
Entering Cond Water
Sensor Fault
Temp
Alert
Check Oil Filter
Low Oil
Pressure Alert
Power Loss
AutoRestart
Pending
Low Line Voltage
AutoRestart
Pending
High Line Voltage
AutoRestart
Pending
High Discharge Temp
Sensor Alert
High Bearing Tempera-
ture
Sensor Alert
Pump Relay Energized
Condenser
Pressure Alert
Recycle Alert
Excessive Recycle
Starts
* [LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point predefined or selected
by the operator as an override, alert, or alarm condition. [VALUE] is the actual temperature, pressure,
voltage, etc., at which the control tripped.
Alarm Message/
Primary Cause
High Amps at Recycle:
Check guide vane drive.
Sensor Fault: Check
leaving condenser water
sensor.
Sensor Fault: Check
entering condenser
water sensor.
Low Oil Pressure Alert:
Check oil.
V P Power Loss:
Check voltage supply.
V P [VALUE] exceeded
limit of [LIMIT*]. Check
voltage supply.
V P [VALUE] exceeded
limit of [LIMIT*]. Check
voltage supply.
CMPD [VALUE]
exceeded limit of
[LIMIT*]. Check dis-
charge temperature.
MTRB [VALUE]
exceeded limit of
[LIMIT*]. Check thrust
bearing temperature.
CRP High Condenser
Pressure [LIMIT*].
Pump energized to
reduce pressure.
Excessive recycle
starts.
Additional Cause/Remedy
Check that guide vanes are closing. Check
motor amps correction calibration is cor-
rect. Check actuator for proper operation.
Check sensor. See sensor test procedure.
Check oil filter. Check for improper oil level
or temperature.
Check power supply if there are excessive
compressor starts occurring.
Discharge temperature exceeded the alert
threshold. Check entering condenser water
temperature.
Thrust bearing temperature exceeded the
alert threshold. Check for closed valves,
improper oil level or temperatures.
Check ambient conditions. Check con-
denser pressure for accuracy.
The machine load is too small to keep the
machine on line and there have been more
than 5 restarts in 4 hours. Increase
machine load, adjust hot gas bypass,
increase RECYCLE RESTART DELTA T.