Diagnostic - Carrier AquaSnap 30RB Serie Installationanweisungen

4. High pressure switch HIP
Installed and set according to technical data table on the
discharge piping with manual reset. On unit without HIP
high pressure protection is assured by compressor
overload switch.
5. Low suction temperature protection
Automatic/manual reset (after 6 automatic cycles) based
on the pressure transducer signal installed on the
compressor suction lines.
6. High pressure protection

Diagnostic

Automatic/manual reset (after 6 automatic cycles) based
on the pressure transducer signal installed on the
The electronic control on the machine continuously
compressor discharge lines.
monitors its operation. In the event of a malfunction, it
activates a relay whose contact generates a coded alarm
7. Fan speed controller
Changes the fan speed according to the condensing
switching on the alarm LED.
temperature. Is controlled by the Pro-Dialog control and
Some alarm conditions are automatically reset, others
permits unit operation up to the specified temperature
require the intervention of the operator to search for the
limits, optimising the condensing temperature.
• Anti-short-cycle protection.
• Fault detector for the temperature and pressure
Manual resetting of alarm conditions is performed using the
sensors.
or opening and closing S1 switch (see electrical
12 - dIagnoSTIc
connections page 10).
WARNING:
The electronic control on the machine continuously
monitors its operation. In the event of a malfunction, it
code according to the instruction reported and remove its
activates a relay whose contact generates a coded alarm
cause.
signal sending ON/OFF signals to the remote control and
switching on the alarm LED.
condition does not reset the unit.
Some alarm conditions are automatically reset, others
require the intervention of the operator to search for the
The alarm code generated by a failure, is shown to the
fault, remove its cause and switch the unit back on.
operator one time only, and the unit remains in alarm status.
To have the alarm code shown again, press the ECO button
Manual resetting of alarm conditions
Manual resetting of alarm conditions is performed using
The following list describes the possible cause for each alarm code:
theremote ON/OFF button by simply switching OFF and
then ON again or opening and closing S1 switch (see
electrical connections page 10).
Description
1 Compressor fault
Leaving water temperature
2
probe fault
Entering water temperature
3
probe fault
5 Air temperature probe fault
6 High pressure transducer fault
11 Low pressure transducer fault
Low refrigerant pressure in the
13
circuit
High refrigerant pressure in the
14
circuit
High pressure safety switch /
15
reverse compressor rotation
16
protection
Repeated attainment of low
21 suction temperature in cooling
(more than six times)
Repeated attainment of high
WARNING: manual resetting causes the definitive loss of
the alarm code; therefore, before a manual reset, check
the code according to the instruction reported and remove
its cause.
N.B. Temporary power supply failure to a unit in an alarm
condition does not reset the unit.
Alarm codification
The alarm code generated by a failure, is shown to the
operator one time only, and the unit remains in alarm
status. To have the alarm code shown again, press the ECO
button on the remote control.
on the remote control.
The alarm codification is based on the binary two-digit
code X1 and X2, as follows:
X1 and X2, as follows:
the first figure X1 flashes at 1 second intervals until it
reaches the number corresponding to the first digit, after a
pause of 2 seconds, second figure X2 starts to flash, again
with 1 second intervals until the number corresponding to
with 1 second intervals until the number corresponding to
the second is reached (only for two-digit codes).
the second is reached (only for two-digit codes).
Alarm code 31 with persistent alarm condition
LED on for 1 second
LED on for 1 second
To have the alarm code shown again, press the ECO
button on the remote control.
To have the alarm code shown again, press the ECO button
on the remote control.
By pressing the ON/OFF button, the unit is turned OFF
and the alarm code is shown again. To restart the unit,
the alarm code is shown again. To restart the unit, remove
remove the alarm cause and press the ON/OFF button
again.
Control
reset
action
Compressor
Manual
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit Automatic/
stopped Manual
Unit
Manual
stopped
Unit
Manual
stopped
Unit Automatic/
stopped Manual
Unit
Automatic
stopped
1 + 1 + 1=3 1
31
LED on for 1 second
LED of for 1 second
Compressor overheated
Sensor out of range, probe wire interruption or
sensor fault
Sensor out of range, probe wire interruption or
sensor fault
Sensor out of range, probe wire interruption or
sensor fault
Transducer out of range, incorrect transducer
voltage transducer wire interrupted or transducer
fault
Transducer out of range, incorrect transducer
voltage transducer wire interrupted or transducer
fault
Fan fault, coil obstructed, high outdoor air
temperature
The safety pressure switch has not been reset after
the last alarm, incorrect compressor connection
Low water low rate entering or leaving water
probe fault
in the circuit
OFF and
23