System information

33
Table 15 — PIC 5 Alarm Codes (cont)
ALARM
CODE
(ALARMRST)
ALARM TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN BY
CONTROL
POSSIBLE CAUSE
PRESSURE TRANSDUCER FAULTS
Alm-215
ALM-215 Sensor Fault —
Condenser Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check condenser pressure trans-
ducer wiring. Confirm that 5 v refer-
ence signal is available between
IOB connector. Check for discon-
nected, grounded, or shorted wir-
ing. Check for condensation in
transducer connector. Check SW2
dip switch in IOB for the channel
configuration.
Alm-216
ALM-216 Sensor Fault —
Evaporator Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check evaporator pressure trans-
ducer wiring. Confirm that 5 v refer-
ence signal is available between
IOB connector. Check for discon-
nected, grounded, or shorted wir-
ing. Check for condensation in
transducer connector. Check SW2
dip switch in IOB for the channel
configuration.
Alm-217
ALM-217 Sensor Fault —
Economizer Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check economizer pressure trans-
ducer wiring. Confirm that 5 v refer-
ence signal is available between
IOB connector. Check for discon-
nected, grounded, or shorted wir-
ing. Check for condensation in
transducer connector. Check SW2
dip switch in IOB for the channel
configuration.
Alm-218
ALM-218 Sensor Fault —
Diffuser Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check diffuser 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 con-
nector. Check SW2 dip switch in
IOB for the channel configuration.
Alm-219
ALM-219 Sensor Fault —
Oil Sump Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check oil sump pressure trans-
ducer wiring. Confirm that 5 v refer-
ence signal is available between
IOB connector. Check for discon-
nected, grounded, or shorted wir-
ing. Check for condensation in
transducer. Check SW2 dip switch
in IOB for the channel configuration.
Alm-220
ALM-220 Sensor Fault —
Oil Supply Pressure
Automatic if the voltage measured by
the sensor returns to normal
Unit shuts down
Check oil supply pressure trans-
ducer wiring. Confirm that 5 v refer-
ence signal is available between
IOB connectors. Check for discon-
nected, grounded, or shorted wir-
ing. Check for condensation in
transducer connector. Check SW2
dip switch in IOB for the channel
configuration.
PRESTART FAILURES
Alm-230
ALM-230 Prestart
Failure — High Bearing
Temperature
Manual
Unit shuts down.
Compressor is not
allowed to start.
Check Comp Bearing Temp in Tem-
perature screen.
Check oil heater and oil cooler for
proper operation.
Check for low oil level, partially
closed oil supply valves, clogged oil
filters.
Check the compressor bearing tem-
perature sensor wiring and accu-
racy to IOB connector.
Check Comp Bearing Temp Alert
setting.