Alarm List - CTC Basic display Bedienungsanleitung

English

8. Alarm list

VWhen an alarm is triggered the display flashes between the A1 (the faulty heat pump's name) and the error
code for the heat pump.
Code Alarm
E08 High pressure switch
E12 Freezing
E13 Low brine flow
E14 Low brine temp
E15 Sensor brine out
E16 Sensor brine in
E21 Sensor HP out
E18 Sensor HP in
E19 Outdoor sensor EcoAir
E20 Outdoor sensor EcoAir
E21 Sensor HP out
EN
E23 Sensor discharge
E24 Sensor suction gas
E25 Sensor high pressure
E26 Sensor low pressure
E30 4-Way valve
E37 EVO Motor
E44 EVO Off
E47 Motor protect high
current
E48 Motor protect low current Low current has been detected for the compressor. Press reset and
E49 L1 phase missing
E50 L2 phase missing
E51 L3 phase missing
E52 Wrong phase order
compressor
56
CTC Basic display
Description
The refrigerant's high pressure switch has been triggered. Press reset
and check whether the alarm recurs. If the fault recurs, contact your
installer.
If an air/water heat pump tries to defrost and the system volume is too
small. Ensure that the heating system has a sufficient volume. Contact
your installer.
Low brine flow is very often due to air in the collector system,
particularly just after installation. Collectors which are too long can also
be a cause. Check also the brine pump speed. Press reset and check
whether the alarm recurs. Also check the brine filter that has been
installed.
If the fault recurs, contact your installer.
Incoming brine temperatures from borehole/ground circuits are too
low. Press reset and check whether the alarm recurs. If the fault recurs,
contact your installer to check the dimensions of the cold side.
An alarm is displayed if a fault 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 significant to the system's operation, the
compressor stops. In this case, the alarm is reset manually after the
fault has been rectified. The alarm is reset automatically after the fault
has been rectified for the other sensors.
CTC EcoAir only. This alarm appears when there is a fault with the
4-way valve, or the return flow and the primary flow have been
switched.
This alarm appears when there is a fault with the expansion valve
control.
High current has been detected for the compressor. Press reset
and check whether the alarm recurs. If the fault recurs, contact your
installer.
check whether the alarm recurs. If the fault recurs, contact your
installer.
This message appears in the event of a phase failure.
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. In this case, two of the phases to the product need
to be changed. The power supply to the system must be shut off when
rectifying this fault. This fault generally only occurs during installation.