System information

31
A manual reset must be run from the main menu via the
ALARMRST menu, item RST_ALM.
Once the alarm has been corrected or reset, all information
regarding solved alarms is stored in the Alarm History. See Ap-
pendix A, page 94.
Alert Codes — Table 16 lists PIC 5 alert codes. These are
automatically reset when the situation returns to normal.
Table 15 — PIC 5 Alarm Codes
ALARM
CODE
(ALARMRST)
ALARM TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN BY
CONTROL
POSSIBLE CAUSE
TEMPERATURE SENSOR FAULTS
Alm-200
ALM-200 Sensor Fault —
Leaving Chilled Water
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
leaving chilled water temperature
sensor and IOB connector. Check
for disconnected, grounded, or
shorted wiring.
Alm-201
ALM-201 Sensor Fault —
Entering Chilled Water
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
entering chilled water temperature
sensor and IOB connector. Check
for disconnected, grounded, or
shorted wiring.
Check IOB channel type configura-
tions.
Alm-202
ALM-202 Sensor Fault —
Leaving Cond Water Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
leaving condenser water tempera-
ture sensor and IOB connector.
Check for disconnected, grounded,
or shorted wiring.
Check IOB channel type configura-
tions.
Alm-203
ALM-203 Sensor Fault —
Entering Cond Water
Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
entering condenser water tempera-
ture sensor and IOB connector.
Check for disconnected, grounded,
or shorted wiring.
Check IOB channel type configura-
tions.
Alm-204
ALM-204 Sensor Fault —
Comp Discharge Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
compressor discharge temperature
sensor and connector. Check for
disconnected, grounded, or shorted
wiring.
Alm-205
ALM-205 Sensor Fault —
Oil Sump Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between oil
sump temperature sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Alm-206
ALM-206 Sensor Fault —
Oil Supply Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between oil
supply temperature sensor and IOB
connector. Check for disconnected,
grounded, or shorted wiring.
Alm-207
ALM-207 Sensor Fault —
Evap Refrig Liquid Temp
Automatic if the temperature mea-
sured by the sensor returns to normal
Unit shuts down
Check sensor resistance.
Check for proper wiring between
evaporator refrigerant liquid temper-
ature sensor and IOB connector.
Check for disconnected, grounded,
or shorted wiring.