Alarms Description - Carrier Touch Pilot Control Series Control Manual

9 - DIAGNOSTICS

9.6 - Alarms description

The following table includes all alarms/alerts associated with the
operation of the unit.
Code Description
Thermistor failure
15001 Cooler Entering Fluid Thermistor
15002 Cooler Leaving Fluid Thermistor
15006 Condenser Entering Fluid Thermistor
15007 Condenser Leaving Fluid Thermistor
15011 MASTER/Slave Common Fluid Thermistor
15032 MASTER/Slave Common Heat Fluid
Thermistor
15018 Circuit A Condenser Subcooling Liquid
Thermistor Failure
15019 Circuit B Condenser Subcooling Liquid
Thermistor Failure
15021 Space Temperature Thermistor
15010 OAT Thermistor Failure
15046 Free Cooling Water Loop Thermistor Failure As above
15047 Free Cooling Leaving Water Thermistor
Failure
15048
Free Cooling OAT Sensor Failure
15036 External Air Cond. Control: Leaving Water
Thermistor Failure
15099 External Air Cond. Control: Outdoor Air
Thermistor Failure
Pressure transducer failure
12001 Circuit A Discharge Transducer Failure
12002
Circuit B Discharge Transducer Failure
12004 Circuit A Suction Transducer Failure
12005 Circuit B Suction Transducer Failure
12031 Circuit A Condenser Subcooling is negative
12032 Circuit B Condenser Subcooling is negative
Communication failure
4901 Loss of communication with SIOB Board
Number 1
4902 Loss of communication with SIOB Board
Number 2
4903 Loss of communication with SIOB Board
Number 3
4601 Loss of communication with AUX1 Board
Number 1
4602 Loss of communication with AUX1
FreeCooling board
4611 Loss of communication with AUX1 Air
Condensing Control board
Unit protections
10001 Cooler Freeze Protection
10002 Circuit A Condenser Freeze Protection
10003
Circuit B Condenser Freeze Protection
Possible cause
Defective thermistor
As above
As above
As above
As above
As above
As above
As above
Defective thermistor while reset
by "Space temp." is activated
Defective thermistor
As above
As above
As above
As above
Defective transducer or
installation fault
As above
As above
As above
Defective transducer or
installation fault, calculated
condenser subcooling is
negative
As above
Bus installation fault or
defective board
As above
As above
As above
As above
As above
No water flow, defective
thermistor
Discharge pressure transducer
defective, refrigerant leak or
low condenser water
temperature
As above
Action taken
Unit shuts down
Unit shuts down
Unit shuts down
Unit shuts down
Master/Slave assembly
control disabled. Unit returns
to the standalone mode
As above
Circuit A shuts down
Circuit B shuts down
No action (warning only)
No action (warning only)
Free cooling is disabled, but
the unit continues to operate
As above
As above
Unit shuts down
Unit shuts down
Circuit A shuts down
Circuit B shuts down
Circuit A shuts down
Circuit B shuts down
No action (warning only)
No action (warning only)
Unit shuts down
Circuit B shuts down
Unit shuts down
Unit continues to operate, but
options related to the board
are disabled, e.g. leak
detection, master/slave
assembly control
Free cooling is disabled
Unit shuts down
Unit shuts down
Unit is "On": Circuit A
shuts down, but the
condenser pump is turned on
Unit is "Off": Condenser
pump is turned on, but the
unit cannot be started
Unit is "On": Circuit B shuts
down, but the condenser
pump is turned on
Unit is "Off": Condenser
pump is turned on, but the
unit cannot be started
Reset type
Automatic, if thermistor
reading returns to normal
As above
As above
As above
As above
As above
As above
As above
As above
As above
As above
As above
As above
As above
As above
Automatic, if sensor voltage
reading returns to normal
As above
As above
As above
As above
As above
Automatic, if communication
is re-established
As above
As above
As above
As above
As above
Automatic, if water exchanger
LWT is 3 K above the
setpoint, (the first alarm within
24 hours); otherwise, Manual
Automatic, if saturated
discharge temperature is
more than 4.4°C; otherwise,
Manual
As above
31