Carrier Ecologic Series 3 Controls, Start-Up, Operation, Service, And Troubleshooting page 49

ALARM/ALERT ALARM OR
CODE ALERT
47 Alert
48 Alert
49 Alarm
50 Alarm
51 Alarm
52 Alarm
53 Alarm
54 Alarm
55 Alarm
56 Alert
57 Alert
58 Alert
59 Alarm
60 Alarm
61 Alarm
62 Alarm
63 Alarm
64 Alert
65 Alert
66 Alarm
67 Alert
68 Alert
70 Alert
Table 36 — Alarm and Alert Codes (cont)
WHY WAS THIS
DESCRIPTION
ALARM GENERATED?
Circuit A High After first 90 seconds,
Saturated Suction SST > 55 F (12.8 C) and
Temperature EXV < 1% for 5 minutes
Circuit B High After first 90 seconds,
Saturated Suction SST > 55 F (12.8 C) and
Temperature EXV < 1% for 5 minutes
Loss of Condenser Flow switch not closed
Flow within 1 minute after
pump is started or if flow
switch opens during nor-
mal operation for
> 10 seconds
Illegal Configuration x Illegal Configuration has
been entered. Correction
needed.
Initial Configuration No configuration has
Required been entered.
Unit is in Emergency CCN command received
Stop to shut unit down.
Cooler Pump Interlock Interlock did not close
Failed at Start-Up within 1 minute after
transition
Cooler Pump Interlock Interlock opened for at
Opened Unexpectedly least 5 seconds during
operation
Cooler Pump Interlock Interlock closed when
Closed When Pump OFF pump relay is off
Loss of Communication No communications have
with WSM been received by PSIO-1
within 5 minutes of trans-
mission.
Circuit A Liquid Level Sensor reads 245 F
Sensor Failure (118 C) or -40 F (-40 C)
with SST > 9 F (-12.8 C)
Circuit B Liquid Level Sensor reads 245 F
Sensor Failure (118 C) or -40 F (-40 C)
with SST > 9 F (-12.8 C)
Compressor A1 Oil Pump did not build
Pre-Start Oil Pressure sufficient pressure during
pre-lube cycle.
Compressor A2 Oil Pump did not build
Pre-Start Oil Pressure sufficient pressure during
pre-lube cycle.
Compressor B1 Oil Pump did not build
Pre-Start Oil Pressure sufficient pressure during
pre-lube cycle.
Compressor A2 Oil Pump did not build
Pre-Start Oil Pressure sufficient pressure during
pre-lube cycle.
Circuit A&B OFF for Control has shut down
Alerts. Unit down both circuits due to
alerts.
Circuit A Loss of Charge Discharge pressure
reading < 10 PSIG for
30 seconds
Circuit B Loss of Charge Discharge pressure
reading < 10 PSIG for
30 seconds
Loss of Communication No communications
with FSM have been received by
PSIO-1 within 5 minutes
of last transmission.
Circuit A High SCT > MCT_SP + 5 F
Discharge Pressure (2.8 C)
Circuit B High SCT > MCT_SP + 5 F
Discharge Pressure (2.8 C)
High Leaving Chilled LCW read > LCW Delta
Water Temperature Alarm limit and total
capacity is 100% and
current LCW > LCW
reading 1 minute ago
ACTION TAKEN
BY CONTROL
Circuit A shut down
Circuit B shut down
Chiller shut down
Chiller cannot start. See
Table 38.
Chiller cannot start
Chiller shut down
Chiller shut down. Pump
turned off.
Chiller shut down. Pump
turned off.
Cooler pump remains off.
Unit prevented from
starting.
WSM forces removed.
Runs under own
control.
Runs, but controls EXV
based on Disch. Super-
heat
Runs, but controls EXV
based on Disch. Super-
heat
Circuit cannot start
Circuit cannot start
Circuit cannot start
Circuit cannot start
None
Circuit A shut down
Circuit B shut down
FSM forces removed
Runs under own
control
Circuit shut down
Circuit shut down
Alert only. None.
49
PROBABLE
RESET METHOD
CAUSE
Manual Faulty expansion valve,
liquid level sensor or
transducer.
Manual Faulty expansion valve,
liquid level sensor or
transducer.
Manual Low condenser water
flow, failed condenser
pump
Manual Configuration error.
Manual Configuration omitted.
CCN/Automatic Network command
Automatic Failure of cooler pump,
cooler pump interlock, or
flow switch
Automatic Failure of cooler pump,
cooler pump interlock, or
flow switch
Manual Failure of cooler pump
relay or interlock, welded
contacts
Automatic Failed module, wiring
error, failed transformer,
loose connection plug,
wrong address
Automatic Thermistor circuit open,
faulty liquid level sensor,
wiring error
Automatic Thermistor circuit open,
faulty liquid level sensor,
wiring error
Manual Low oil, oil pump failure,
oil solenoid failure, oil
transducer failure, check
valve failed open, oil shut-
off valve closed
Manual Low oil, oil pump failure,
oil solenoid failure, oil
transducer failure, check
valve failed open, oil shut-
off valve closed
Manual Low oil, oil pump failure,
oil solenoid failure, oil
transducer failure, check
valve failed open, oil shut-
off valve closed
Manual Low oil, oil pump failure,
oil solenoid failure, oil
transducer failure, check
valve failed open, oil shut-
off valve closed
Automatic Check individual alarms
Manual Refrigerant leak or
transducer failure
Manual
Automatic Wiring faulty or module
failure
Automatic** Faulty transducer/high
pressure switch, low/
restricted condenser air/
water flow††
Automatic** Faulty transducer/high
pressure switch, low/
restricted condenser air/
water flow††
Automatic Building load greater
than unit capacity, low
water/brine flow, or com-
pressor fault. Check for
other alarms or alerts.