Appendix
34
Installation instructions aroTHERM 0020147164_09
VWL 55/2 A
230 V
VWL 85/2 A
230 V
VWL 115/2 A
230 V
VWL 155/2 A
230 V
Oil type
Specific
polyvinyl ether
(PVE)
Specific
polyvinyl ether
(PVE)
Specific
polyvinyl ether
(PVE)
Specific
polyvinyl ether
(PVE)
Refrigerant circuit control
system
Electronic
Electronic
Electronic
Electronic
Technical data
–
Heat pump system performance data
VWL 55/2 A
230 V
VWL 85/2 A
230 V
VWL 115/2 A
230 V
VWL 155/2 A
230 V
Heat output A-7/W35
−
−
7.63 kW
10.79 kW
A-7/W35 output figure/EN
14511 coefficient of per-
formance
−
−
2.24
2.64
Power consumption ef-
fective at A-7/W35
−
−
3.41 kW
4.09 kW
Heat output A7/W35
−
−
9.80 kW
14.26 kW
A7/W35 output figure/EN
14511 coefficient of per-
formance
−
−
3.85
3.85
Power consumption ef-
fective at A7/W35
−
−
2.55 kW
3.70 kW
Heat output A7/W45
−
−
9.28 kW
13.20 kW
A7/W45 output figure/EN
14511 coefficient of per-
formance
−
−
3.04
3.07
Power consumption ef-
fective at A7/W45
−
−
3.05 kW
4.30 kW
Heat output A7/W55
−
−
8.69 kW
10.68 kW
A7/W55 output figure/EN
14511 coefficient of per-
formance
−
−
2.47
2.30
Power consumption ef-
fective at A7/W55
−
−
3.51 kW
4.65 kW
F
Overview of fault codes
Code
Meaning
Cause
F.022
Water pressure too low
Insufficient water in the heating system
F.037
Fan fault
–
Obstruction in the product's air pipe
–
Fan motor not connected or defective
–
The connection between the main PCB and the fan PCB is dam-
aged or broken
F.042
Fault: Coding resistor
–
The product's coding resistor is missing or is defective
–
Coding resistor value outside the permissible range
–
X25
plug not connected or was connected incorrectly
F.073
Fault: Water pressure sensor
Line to water pressure sensor is broken or has a short circuit
F.086
Surface-mounted thermostat opened
–
Underfloor heating temperature too high
–
Heating circuit flow rate quantity too low
–
Underfloor heating circuit is closed
F.103
Fault: Spare part detection
–
The parameter
Max. duration power supply cut-off
has been
poorly set (see "Heat pump setting parameters" in the appendix).
–
The main PCB that is fitted as a spare part or the frequency con-
verter does not match the product.
F.514
Temp. sensor fault: Compressor inlet
Sensor is defective or incorrectly connected to the main PCB
F.517
Temp. sensor fault: Compressor outlet
F.519
Sensor fault: Return temperature
1) Sensor on the evaporator
2) Sensor on the condenser
