System information

47
Table 16 — PIC 5 Alert Codes
ALERT CODE
(ALARMRST)
ALERT TEXT
DESCRIPTION
RESET TYPE
ACTION TAKEN BY
CONTROL
POSSIBLE CAUSE
PRESTART ALERTS
Alt-100
ALT-100 Prestart Alert —
Starts Limit Exceeded
Automatic when the situation returns
to normal
Turn on Alert relay.
Check STARTS IN 12 HOURS in
Run times screen.
Enable “Enable Excessive Starts”
option in Service menu if additional
start is required.
NOTE: Recycle restarts and auto
restarts after power failure are not
counted in Starts Limit.
Alt-101
ALT-101 Prestart Alert —
Low Oil Temperature
Automatic when the situation returns
to normal
Alert relay is ON.
Check OIL SUMP TEMP in default
screen.
Check oil heater contactor/relay
and power.
Check oil sump temperature sensor
wiring and accuracy.
Check oil level and oil pump opera-
tion.
Check EVAP SAT TEMP.
Alt-102
ALT-102 Prestart Alert —
High Condenser Pressure
Automatic when the situation returns
to normal
Alert relay is ON.
Check CONDENSER PRESSURE.
Check condenser pressure trans-
ducer wiring and accuracy.
Check for high condenser water
temperatures.
Check COND PRESS OVERRIDE
in configuration.
Alt-103
ALT-103 Prestart Alert —
Excessive Recycle Starts
Automatic when the situation returns
to normal
Alert relay is ON.
Chiller load is too low to keep com-
pressor on line and there have been
more than 5 starts in 4 hours.
Increase chiller load, adjust hot gas
bypass to open at a higher load,
increase recycle RESTART DELTA
T in service menu.
Check hot gas bypass isolation
valve position.
SENSOR ALERTS
Alt-120
Alt-120 Sensor Alert —
Remote Temperature Out
of Range
Automatic when the situation returns
to normal
Alert relay is ON.
Type 2 Temperature Reset is
Enabled and remote temperature
reset sensor is out of range.
Check ENABLE RESET TYPE and
TEMPERATURE RESET settings in
TEMP_CNTL screen.
Check remote temperature reset
sensor resistance or voltage drop.
Check for proper wiring to IOB.
Check IOB channel type configura-
tions and SW2 dip switch setting in
IOB.
Alt-121
Alt-121 Sensor Alert —
Auto Water Temp Reset
Automatic when the situation returns
to normal
Alert relay is ON.
Check sensor resistance or voltage
drop.
Check for proper wiring.
Check for proper wiring to IOB.
Check IOB channel type configura-
tions and SW2 dip switch setting in
IOB.