Carrier AquaForce B Series - Page 217

217
18nnn Compressor VFD
Error, Circuit B
Compressor VFD Circuit B fault (see
VFD Alarms and Alerts section)
Circuit B will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
20nnn Fan A1 VFD
Error, Circuit A
Fan A1 VFD Circuit A fault (see VFD
Alarms and Alerts section)
Circuit A will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
21nnn Fan A2 VFD
Error, Circuit A
Fan A2 VFD Circuit A fault (see VFD
Alarms and Alerts section)
Circuit A will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
02101 Compressor B
Motor tempera-
ture too high
Tested when the compressor is ON or
OFF.
The alarm is set if compressor motor
temperature CP_TMP_B > 275°F
(135°C).
Circuit B will be shut
down
Manual If this condition is encountered, check the fol-
lowing items for faults:
• check refrigerant charge
• faulty wiring and loose plugs
• faulty SIOB
• faulty compressor temperature thermistor
02103 Compressor B
High Pressure
Switch protection
Tested when the compressor is ON or
OFF. The alarm is set when the Safe
Stop DI-37 of the compressor drive is
opened (terminal 37 on the compres-
sor VFD).
Circuit B will be shut
down
Manual If this condition is encountered, check the fol-
lowing items for faults:
• condenser fans and motors for proper ro-
tation and operation
• compressor operating beyond the limits of
the operating envelope
• faulty high pressure switch or wiring (ter-
minals 12 and 37 in VFD)
• plugged/fouled condenser coil
• excessive charge
23nnn Fan B1 VFD
Error, Circuit B
Fan B1 VFD Circuit B fault (see VFD
Alarms and Alerts section on
page 220)
Circuit B will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
24nnn Fan B2 VFD
Error, Circuit B
Fan B2 VFD Circuit B fault (see VFD
Alarms and Alerts section on
page 220)
Circuit B will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
35nnn Compressor VFD
Error, Circuit A
Compressor VFD Circuit A fault (see
VFD Alarms and Alerts section on
page 220)
No action unless
subcode =
013: over current
204: locked rotor
in which case circuit
will shut down
Automatic; reset is manual
for subcode 013 and 204
See Table 171 for VFD Alarm/Alert Codes
36nnn Compressor VFD
Error, Circuit B
Compressor VFD Circuit B fault (see
VFD Alarms and Alerts section on
page 220)
No action unless
subcode =
013: over current
204: locked rotor
in which case circuit
will shut down
Automatic; reset is manual
for subcode 013 and 204
See Table 171 for VFD Alarm/Alert Codes
38nnn Fan A1 VFD
Error, Circuit A
Fan A1 VFD Circuit A fault (see VFD
Alarms and Alerts section on
page 220)
No action unless
subcode =
013: over current
204: locked rotor
in which case circuit
will shut down
Automatic; reset is manual
for subcode 013 and 204
See Table 171 for VFD Alarm/Alert Codes
38203 Fan A1 VFD
Error, Circuit A
The Variable Frequency Drive (VFD)
has detected a missing motor and
generated a W203 Missing Motor
Warning. Motor curve parameters are
loaded to the fan VFD from the unit
controls so that a motor current can be
determined. If the current measured
does not correspond to the motor
curve amp draw for the given speed.
The unit controls will not generate the
alert until one of the following condi-
tions is met: 1. The Outdoor Ambient
Temperature is equal to or greater
than 50°F (10°C) and the VFD reports
the W203 Missing Motor Warning for
at least 30 seconds 2. The Outdoor
Ambient Temperature is less than
50°F (10°C) and the VFD reports the
W203 Missing Motor Warning for at
least 5 minutes
None; warning only Automatic Check motor connections to the VFD; check
harness connections to the motor; confirm unit
configuration
39nnn Fan A2 VFD
Error, Circuit A
Fan A2 VFD Circuit A fault (see VFD
Alarms and Alerts section on
page 220)
No action unless
subcode =
013: over current
204: locked rotor
in which case circuit
will shut down
Automatic; reset is manual
for subcode 013 and 204
See Table 171 for VFD Alarm/Alert Codes
Table 168 — Alarm Details by Code (cont)
ALARM
CODE
ALARM NAME
CRITERIA
FOR TRIP
ACTION TAKEN
BY CONTROL
RESET
METHOD
POSSIBLE CAUSES/CORRECTIVE ACTIONS