Alpha-InnoTec Luxtronik User Manual

39Subject to technical amendments without prior notice | 83055400iUK – 2.1 | ait-deutschland GmbH
Error Diagnosis / Error messages
No. Display Description Remedy
701 Error low pressure.
Please call AS
Low pressure pressostat or low-pressure sensor in the cooling
circle has responded (L/W) or for longer than 20 seconds (S/W).
Check HP for leakage, switching point
pressure state, defrosting and T-outd.min.
702 Low pressure stop
RESET autom.
Only possible for L/W devices: Low pressure in the cooling circle
has responded. After some time, automated HP restart.
Check HP for leakage, switching point
pressure state, defrosting and T-outd.min.
703 Antifreeze
Please call tter
Only possible for L/W devices: If the heat pump is running and
the temperature in ow is < 5 °C, antifreeze is detected.
Check HP power, defrost valve and heating
system.
704 Error hot gas
Reset in hh:mm
Maximum temperature in the hot gas cooling circle exceeded.
Automatic HP restart after hh:mm.
Check coolant quantity, evaporation,
overheating ow, return and HS-min.
705 Motor protection VEN
Please call tter
Only possible for L/W devices: Motor protection has responded. Check set value and ventilator / BCP.
706 Motor protection BCP
Please call tter
Option only possible for S/W- or W/W devices Motor protection
of the brine or well water circulating pump or the compressor
has responded.
Check set values, compressor, BOS.
707 Coding of HP
Please call tter
Break or short-circuit of the coding bridge in HP after the rst
switch-on.
Coding resistance in HP, check plug and
connection line.
708 Return sensor
Please call tter
Break or short-circuit in the return sensor. Check return sensor, plug and connection
line.
709 Flow sensor
Please call tter
Break or short-circuit in the ow sensor No fault shutdown for
S/W- or W/W devices.
Check ow sensor, plug and connection
line.
710 Hot gas sensor
Please call tter
Break or short-circuit in the hot gas sensor of the cooling circle. Check hot gas sensor, plug and connection
line.
711 External temp. sensor
Please call tter
Break or short-circuit in the external temperature sensor No
fault shutdown. Fixed value to -5 °C.
Check external temperature sensor, plug
and connection line.
712 Domestic hot water sensor.
Please call tter
Break or short-circuit in the domestic hot water sensor No fault
shutdown.
Check domestic hot water sensor, plug and
connection line.
713 HS-on sensor
Please call tter
Break or short-circuit in the heat source sensor (inlet). Check heat source sensor, plug and
connection line.
714 Hot gas SW
Reset in hh:mm
Check thermal application limit of the HP. Domestic hot water
o for hh:mm.
Fault only triggers if the compressor is running.
Check ow of domestic hot water, heat
exchanger, domestic hot water temperature
and circulation pump.
715 High-pressure switch-o
RESET autom.
High pressure in the cooling circle has responded. After some
time, automated HP restart.
Check ow of HW, overows, temperature
and condensation.
716 High-pressure fault
Please call tter
High pressure pressostat in the cooling circle has responded
several times.
Check ow of HW, overows, temperature
and condensation.
717 Flow HS
Please call tter
Flow switch for W/W devices has responded during the pre-
rinsing time or operation.
Check ow, switching point for DFS, lter,
air clearance.
718 Max. outside temp.
RESET autom. in hh:mm
Only possible for L/W devices: Outside temperature has
exceeded permissible maximum value. Automatic HP restart
after hh:mm.
Check outside temperature and set value.
719 Min. outside temp.
RESET autom. in hh:mm
Only possible for L/W devices: Outside temperature has fallen
below the permissible minimum value. Automatic HP restart
after hh:mm.
Check outside temperature and set value.
720 HS temperature
RESET autom. in hh:mm
Option only possible for S/W- or W/W devices Temperature at
evaporation outlet has fallen below the safety value on the HS
side several times. Automatic HP restart after hh:mm.
Check ow, lter, air clearance, temperature.
721 Low-pressure switch-o
RESET autom.
Low pressure pressostat or low-pressure sensor in the cooling
circle has responded. After some time, automated HP restart
(S/W and W/W).
Check switching point of the pressostat,
ow on HS side.
722 Tempdi HW
Please call tter
Temperature spread in the heating mode is negative
(=erroneous).
Check function and location of the ow and
return sensor.
723 Tempdi SW
Please call tter
Temperature spread in the domestic hot water mode is
negative (=erroneous).
Check function and location of the ow and
return sensor.

Alpha-InnoTec Luxtronik Specifications

General

Brand	Alpha-InnoTec
Model	Luxtronik
Category	Controller
Language	English