Carrier ComfortLink 6 Series - Page 45

45
Table 32  Alarm and Alert Codes (cont)
ALARM/
ALERT CODE
ALARM OR
ALERT
DESCRIPTION
WHY WAS THIS ALARM
GENERATED?
ACTION TAKEN BY
CONTROL
RESET
METHOD
PROBABLE CAUSE
T071 Alert Cir. B Discharge Gas
Thermistor Failure
Average of compressor B1
and B2 (if installed)
sensors > 210° F for
30 seconds.
Circuit B shut down Manual Thermistor failure, damaged
cable/wire, wiring error or
motor cooling solenoid failure.
T073 Alert Outside Air Tempera-
ture Thermistor
Failure
Thermistor outside range of
–40to240F(–40to116C)
Reset disabled. Runs
under normal control/
set points.
Automatic Thermistor failure, damaged
cable/wire, wiring error or sen-
sor not installed.
T074 Alert Space Temperature
Thermistor Failure
Thermistor outside range of
–40to240F(–40to116C)
Reset disabled. Runs
under normal control/
set points.
Automatic Thermistor failure, damaged
cable/wire, wiring error or sen-
sor not installed.
T075 Alert Compressor A1
Discharge Gas
Thermistor Failure
Thermistor outside range of –
40 to 240° F (–40 to 116° C)
Comp A1 shut down Automatic Thermistor failure, damaged
cable/wire, wiring error or
motor cooling solenoid failure.
T076 Alert Compressor A2
Discharge Gas
Thermistor Failure
Thermistor outside range of –
40 to 240° F (–40 to 116° C)
Comp A2 shut down Automatic Thermistor failure, damaged
cable/wire, wiring error or
motor cooling solenoid failure.
T077 Alert Compressor B1
Discharge Gas
Thermistor Failure
Thermistor outside range of –
40 to 240° F (–40 to 116° C)
Comp B1 shut down Automatic Thermistor failure, damaged
cable/wire, wiring error or
motor cooling solenoid failure.
T078 Alert Compressor B2
Discharge Gas
Thermistor Failure
Thermistor outside range of –
40 to 240° F (–40 to 116° C)
Comp B2 shut down Automatic Thermistor failure, damaged
cable/wire, wiring error or
motor cooling solenoid failure.
T079 Alert Lead/Lag Leaving
Fluid Temperature
Thermistor Failure
Thermistor outside range of
–40to240F(–40to116C)
Breaks Dual Chiller
link if set up for Paral-
lel operation.
Automatic Thermistor failure, damaged
cable/wire, wiring error or sen-
sor not installed.
T090 Alert Circuit A Discharge
Pressure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Circuit A shut down Automatic Transducer failure, poor con-
nection to MBB, or wiring
damage/error.
T091 Alert Circuit B Discharge
Pressure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Circuit B shut down Automatic Transducer failure, poor con-
nection to MBB, or wiring
damage/error.
T092 Alert Circuit A Suction
Pressure Transducer
Failure
Voltage ratio more than
99.9% or less than 0.5% for
50 seconds.
Circuit A shut down Automatic Transducer failure, poor con-
nection to MBB, or wiring
damage/error.
T093 Alert Circuit B Suction
Pressure Transducer
Failure
Voltage ratio more than
99.9% or less than 0.5% for
50 seconds.
Circuit B shut down Automatic Transducer failure, poor con-
nection to MBB, or wiring
damage/error.
T094 Alert Comp A1 Oil Pres-
sure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Comp A1 shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
T095 Alert Comp A2 Oil Pres-
sure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Comp A2 shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
T096 Alert Comp B1 Oil Pres-
sure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Comp B1 shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
T097 Alert Comp B2 Oil Pres-
sure Transducer
Failure
Voltage ratio more than
98.9% or less than 6%.
Comp B2 shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
T098 Alert Circuit A Economizer
Pressure Transducer
Failure–1
Voltage ratio more than
99.9% or less than 0.5% for
50 seconds.
Circuit A shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
Alert Circuit A Economizer
Pressure Transducer
Failure–2
Economizer pressure is more
than 12 psi (83 kPa) less than
suction pressure.
Circuit A shut down Manual Suction and Economizer pres-
sure connectors/wiring are
swapped.
T099 Alert Circuit B Economizer
Pressure Transducer
Failure–1
Voltage ratio more than
99.9% or less than 0.5% for
50 seconds.
Circuit B shut down Automatic Transducer failure, poor con-
nection to SCB, or wiring
damage/error.
Alert Circuit B Economizer
Pressure Transducer
Failure–2
Economizer pressure is more
than 12 psi (83 kPa) less than
suction pressure.
Circuit B shut down Manual Suction and Economizer pres-
sure connectors/wiring are
swapped.
T110 Alert Circuit A Loss of
Charge
Discharge pressure reading
< 10 psig for 30 seconds.
Circuit A shut down Manual Refrigerant leak or transducer
failure.
T111 Alert Circuit B Loss of
Charge
Discharge pressure reading
< 10 psig for 30 seconds.
Circuit B shut down Manual Refrigerant leak or transducer
failure.