CTC Union GSi 16, Installation And Maintenance Manual

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118 CTC GSi 16
Alarm messages Description
[E048] Stop, low evap. exp.
valve
This message appears when the expansion valve’s evaporation temperature is
low.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E049] Stop, high evap. exp.
valve
This message appears when the expansion valve’s evaporation temperature is
high.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E050] Stop, low overheat. exp.
valve
This message appears when the expansion valve’s overheat temperature is
low.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E052] Phase 1 missing
[E053] Phase 2 missing
[E054] Phase 3 missing
This message appears in the event of a phase failure.
[E055] Incorrect phase
sequence
The product’s compressor motor must rotate in the right direction. The
product checks that the phases are connected correctly; otherwise, an alarm
is triggered. This will require changing two of the phases into the product. The
power supply to the system must be shut off when rectifying this fault. This
fault generally only occurs during installation.
[Exxx] Alarm ' sensor ' An alarm message is displayed if an error occurs with a sensor that is not
connected or has short-circuited and if the value is outside the sensor’s range.
If this sensor is important to the system’s operation, the compressor stops.
This requires the alarm to be reset manually after the fault has been rectified.
The alarm is reset automatically after correction for the following sensors:
Sensor upper tank (B5), Sensor EHS tank (B47), Sensor primary flow 1 (B18),
Sensor primary flow 2 (B2), Sensor out (B15), Room sensor 1 (B11), Room
sensor 2 (B12), Sensor brine out, Sensor brine in, Sensor HPin, Sensor HPout,
Sensor discharge, Sensor suction gas, Sensor high pressure, Sensor low
pressure.
[E057] High current motor
protection
High current into the compressor has been detected. Press reset and check
whether the alarm recurs. If the fault recurs, contact your installer.
[E058] Low current motor
protection
Low current into the compressor has been detected. Press reset and check
whether the alarm recurs. If the fault recurs, contact your installer.
[E061] Max. thermostat This alarm message appears if the product becomes too hot.
During installation, make sure the max. thermostat (F10) has not been
triggered as there is a chance of this occurring if the boiler has been stored
in extremely cold temperatures, Reset it by pressing in the button on the
electrical switchboard behind the front panel.
[E087] Driver
[E088] Driver: 1 -
[E109] Driver: 29 Driver fault.
[E117] Driver: Offline
Press reset and check whether the alarm recurs.
If the fault recurs, contact your installer and tell them the error code number
where applicable.
Communication error. The electrical connection box and driver of the heat
pump are not communicating.