216
12001 Circuit A Dis-
charge Trans-
ducer
Tested when the unit is On or Off
Alarm will trip if the pressure trans-
ducer reads below –7 psi (–48 kPa)
Circuit will be shut
down immediately
Automatic, if transducer
reading returns to normal.
Affected circuit will be
restarted normally.
If this condition is encountered, check the fol-
lowing items for faults:
• sensor wiring to the SIOB
• faulty channel on the board
• Sensor accuracy
See the Transducer section on page 57 for sen-
sor description and connections
12002 Circuit B Dis-
charge Trans-
ducer
12004 Circuit A Suction
Transducer
Tested when compressor is Off or On
Alarm will trip if the pressure transducer
reading is below –7 psi (–48 kPa) or
SST-EWT > 0 and unit is in cooling mode
and EXV opening <40% for 60 seconds
and drive speed >5 (compressor On)
Circuit will be shut
down immediately
Automatic, if transducer
reading returns to normal
OR
Manual, if the alarm has
occurred 3 times within the
last 24 hours.
12005 Circuit B Suction
Transducer
12010 Circuit A Oil Pres-
sure Transducer
Tested when the unit is On or Off
Alarm will trip if pressure transducer
reading is below –7 psi (–48 kPa)
Circuit will be shut
down immediately
Automatic, if transducer
reading returns to normal.
Affected circuit will be
restarted normally.
12011 Circuit B Oil Pres-
sure Transducer
12013 Circuit A Econo-
mizer Pressure
Transducer
Tested when the unit is On or Off
Alarm will trip if pressure transducer
reading is below –7 psi (–48 kPa)
Circuit will be shut
down immediately
Automatic, if transducer
reading returns to normal.
Affected circuit will be
restarted normally.
12014 Circuit B Econo-
mizer Pressure
Transducer
12031 Circuit A Con-
denser Subcool-
ing Liquid
Pressure Trans-
ducer
Tested when the unit is On or Off
Alarm will trip if pressure transducer
reading is below –7 psi (-48 kPa)
Circuit will be shut
down immediately
Automatic, if transducer
reading returns to normal.
Affected circuit will be
restarted normally.
12032 Circuit B Con-
denser Subcool-
ing Liquid
Pressure Trans-
ducer
15001 Evaporator Enter-
ing Fluid Thermis-
tor
Tested when the unit is On or Off
Alarm will trip if the temperature mea-
sured by the evaporator entering fluid
sensor is outside the range of –40 to
302°F (–40 to 150°C)
Unit is shut down
normally or not
allowed to start
Automatic, if thermistor
reading is inside the range
of –40 to 302°F (–40 to
150°C)
If this condition is encountered, check the fol-
lowing items for faults:
• sensor wiring to the SIOB
• faulty channel on the board
• sensor accuracy
See the Thermistors section on page 57 for
thermistor description and connections
15002 Evaporator Leav-
ing Fluid Thermis-
tor
Tested when the unit is On or Off
Alarm will trip if the temperature mea-
sured by the evaporator entering fluid
sensor is outside the range of –40 to
302°F (–40 to 150°C)
Unit is shut down
normally or not
allowed to start
Automatic, if thermistor
reading is inside the range
of –40 to 302°F (–40 to
150°C)
15010 OAT Thermistor
Failure
Tested when the unit is On or Off
Alarm will trip if the temperature mea-
sured by the OAT sensor is outside the
range of –40 to 302°F (–40 to 150°C)
Unit is shut down
normally or not
allowed to start
Automatic, if thermistor
reading is inside the range
of –40 to 302°F (–40 to
150°C)
15011 Dual Chiller
Thermistor Failure
Tested when the unit is On or Off
Alarm will trip if the temperature mea-
sured by the evaporator entering fluid
sensor is outside the range of –40 to
302°F (–40 to 150°C)
Unit is shut down
normally or not
allowed to start
Automatic, if thermistor
reading returns to normal
15012 Circuit A Suction
Gas Thermistor
Tested when the circuit is On or Off
Alarm will trip if the circuit suction gas
sensor reading is outside the range of
–40 to 245°F (–40 to 118°C)
Circuit will be shut
down immediately
Automatic, if thermistor
reading returns to normal.
Affected circuit will be
restarted normally.
15013 Circuit B Suction
Gas Thermistor
15015 Circuit A Dis-
charge Gas
Thermistor
Tested when the circuit is On or Off
Alarm will trip if the discharge gas sen-
sor reading is outside the range of –40
to 245°F (–40 to 118°C)
Circuit will be shut
down immediately
Automatic, if thermistor
reading returns to normal.
Affected circuit will be
restarted normally.
If this condition is encountered, check the fol-
lowing items for faults:
• sensor wiring to the SIOB
• faulty channel on the board
• sensor accuracy
See the Thermistors section on page 57 for
thermistor description and connections
15016 Circuit B Dis-
charge Gas
Thermistor
15018 Circuit A Con-
denser Subcool-
ing Liquid
Thermistor
Tested when the circuit is On or Off
Alarm will trip if the condenser subcool-
ing liquid sensor reading is outside the
range of –40 to 245°F (–40 to 118°C)
Circuit will be shut
down immediately
Automatic, if thermistor
reading returns to normal.
Affected circuit will be
restarted normally.
15019 Circuit B Con-
denser Subcool-
ing Liquid
Thermistor
15021 Space Tempera-
ture Thermistor
Tested when the circuit is On or Off
Alarm will trip if the space temperature
sensor reading is outside the range of
–40 to 245°F (–40 to 118°C)
No action on the unit Automatic, if thermistor
reading returns to normal
15024 Circuit A Econo-
mizer Gas Therm-
istor
Tested when the circuit is On or Off
Alarm will trip if the sensor reading is
outside the range of –40 to 302°F
(–40 to 150°C)
Circuit will be shut
down immediately
Automatic, if thermistor
reading returns to normal
15025 Circuit B Econo-
mizer Gas Therm-
istor
15033 Circuit A Com-
pressor Motor
Thermistor
Tested when the circuit is On or Off
Alarm will trip if the motor temperature
sensor reading is outside the range of
–40 to 302°F (–40 to 150°C)
Circuit will be shut
down immediately
Automatic, if thermistor
reading returns to normal.
Affected circuit will be
restarted normally.
15034 Circuit B Com-
pressor Motor
Thermistor
17nnn Compressor VFD
Error, Circuit A
Compressor VFD Circuit A fault (see
VFD Alarms and Alerts section)
Circuit A will be shut
down
Manual See Table 171 for VFD Alarm/Alert Codes
Table 168 — Alarm Details by Code (cont)
ALARM
CODE
ALARM NAME
CRITERIA
FOR TRIP
ACTION TAKEN
BY CONTROL
RESET
METHOD
POSSIBLE CAUSES/CORRECTIVE ACTIONS
To Next Page
Loading...
