01-07-2022
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AHP60
26/32 kW -
Installation, Use and Maintenance
E006
Flow rate
error
If the flow rate controller
detects an insufficient flow rate
for 5 seconds consecutively. If
the error occurs more than 3
times in an hour, it needs to be
reset manually
•
Check that the flow rate controller is operating, by
checking the cabling WFC01
• Check that the installation instructions provided in
this manual have been respected.
•
Check the condition of the water filters in the system
E008
Compressor
board limit
error
If during the lubrication
phase, the compressor does
not exceed he minimum
frequency, it is stopped and
the error message E008 is
displayed. This error needs
to be reset manually if the
compressor is stopped more
than 3 times in an hour,
• Check the fan is operating correctly
• Check the continuity of the connection between U, V
and W on the inverter and U, V, W on the compressor.
• Check the resistor between the compressor phases:
E009
High
compressor-
discharge
temperature
alarm
If the compressor discharge
temperature exceeds the value
defined by the 120°C parameter,
the alarm is activated and the
compressor blocked.
The alarm is automatically
reset when the discharge
temperature drops below the
limit of 110 °C.
• Check the fan is operating correctly
• Check the wiring of the compressor outlet sensor,
and that the bulb is inserted correctly into the well
and that there is heat dissipating paste
• Check the refrigerant level
E020
Inverter or
pressure
sensor alarm
If the compressors has been
operating for more than 150
seconds, if the low pressure
sensor detects that the
pressure is higher than the
high pressure sensor, then
the alarm message E020 is
displayed.
This alarm is not reset (the
machine has to be powered
down to clear the alarm).
• Check the reversal of the pressure sensor cabling
XC-17.1 / XC-17.2 and XC-18.1/ XC-18.2
• Check that the compressor pilot is working correctly
• Check the compressor is operating correctly
• Check the continuity of the connection between U, V
and W on the inverter and U, V, W on the compressor.
• Check the resistor between the compressor phases:
Models
Resistance of coil at 20°C
26 kW
0.86Ω +/- 5%
32 kW
0.61Ω +/- 5%
Models
Resistance of coil at 20°C
26 kW
0.86Ω +/- 5%
32 kW
0.61Ω +/- 5%
Code Description
Cause
Solution
E002
Low
pressure
error
The pressure sensor detects
a pressure that is lower than
the “low pressure setpoint”.
Low pressure setting
for cooling =3.5bar. Low
pressure setting for heating
mode = 1.3 bar.
If the error occurs more than 3
times in an hour, it needs to be
reset manually
• Check for gas leaks in the refrigeration circuit.
• Check if the error occurs when the operating mode
is changed
• Check the electronic expansion valve EEV is
operating and attached correctly.
E005
Frost-free
error
If the water outlet
temperature sensor (OUT1)
has a value of less than A08
(by default 3°C). This error is
reset manually.
•
The temperature rises by 3°C above the intervention
level