Carrier AquaEdge 19DV Operation And Troubleshooting page 33
Two-stage high-efficiency semi-hermetic centrifugal liquid chillers with pic6 controls
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ALARM
DESCRIPTION OF
CODE
ALARM TEXT
Sensor Fault - Leaving
Alm-200
Chilled Water
Alm-201 Sensor Fault - Entering
Chilled Water
Sensor Fault - Leaving
Alm-202
Cond Water Temp
Alm-203 Sensor Fault - Entering
Cond Water Temp
Alm-204 Sensor Fault - Comp
Discharge Temp
Alm-207 Sensor Fault - Evap
Refrig Liquid Temp
Sensor Fault - Low
Alm-208
Speed Motor End
Bearing Temp
Sensor Fault - Low
Alm-209
Speed Comp End
Bearing Temp
Sensor Fault - High
Alm-210
Speed Motor End
Bearing Temp
Sensor Fault - High
Alm-211
Speed Comp End
Bearing Temp
Alm-212 Sensor Fault - Comp
Motor Winding 1 Temp
Sensor Fault - Comp
Alm-213
Motor Winding 2Temp
Alm-214 Sensor Fault - Comp
Motor Winding 3 Temp
Alm-215 Sensor Fault -
Condenser Pressure
Table 17 — PIC6 Alarm Codes*
CRITERION FOR TRIP
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If leaving chilled water
temperature is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If entering chilled water
temperature is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, chiller is in heating mode, and
entering water temp control is disabled, If
leaving condenser water temperature is
outside range of -39.5 to 244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, chiller is in heating mode, and
entering water temp control is enabled, If
entering condenser water temperature is
outside range of -39.5 to 244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor discharge
temperature is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If evap refrigerant liquid
temperature is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor bearing
temperature 1 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor bearing
temperature 2 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor bearing
temperature 3 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor bearing
temperature 4 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor motor
temperature 1 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor motor
temperature 2 is outside range of -39.5 to
244.5°F.
Tested when the compressor is on
whatever the run status and the
communication between Main board and
IOBs is ok, If compressor motor
temperature 3 is outside range of -39.5 to
244.5°F.
Tested when the compressor is whatever
the run status and the communication
between Main board and IOBs is ok. If
chiller type is 19DV then
if the condenser transducer voltage
outside range of 0.3V to 4.67V
else
if the condenser transducer voltage
outside range of 0.3V to 4.75V.
ALARM RESET
ACTION TAKEN BY THE
METHOD
CONTROL
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
temperature reading is
Unit shuts down. Alarm
inside the range of -39.5 to
relay turns on.
244.5°F.
Automatic when the
Unit shuts down. Alarm
voltage reading is inside
relay turns on.
the range of 0.3V to 4.75V.
33
POSSIBLE CAUSE
Check sensor resistance. Check for
proper wiring between LEAVING
CHILLED WATER Temperature
Sensor and IOB connector. Check for
disconnected, grounded, or shorted
wiring.
Check sensor resistance. Check for
proper wiring between Entering Chilled
Water Sensor and IOB connector.
Check for disconnected, grounded, or
shorted wiring.
Check sensor resistance. Check for
proper wiring between Leaving Cond
Water Temp Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Entering Cond
Water Temp Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Comp
Discharge Temp Sensor and
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Evap Refrig
Liquid Temp Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Low Speed
Motor End Bearing Temp Sensor and
IOB connector. Check for
disconnected, grounded, or shorted
wiring.
Check sensor resistance. Check for
proper wiring between Low Speed
Comp End Bearing Temp 2 Sensor and
IOB connector. Check for
disconnected, grounded, or shorted
wiring.
Check sensor resistance. Check for
proper wiring between High Speed
Motor End Bearing Temp Sensor and
IOB connector. Check for
disconnected, grounded, or shorted
wiring.
Check sensor resistance. Check for
proper wiring High Speed Comp End
Bearing Temp Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Compressor
Motor Temp 1 Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Compressor
Motor Temp 2 Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check sensor resistance. Check for
proper wiring between Compressor
Motor Temp 3 Sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Check condenser pressure transducer
wiring. Confirm that 5 V reference
signal is available between IOB
connector. Check for disconnected,
grounded, or shorted wiring. Check for
condensation in transducer connector.
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