Appendix
0020250180_00 geoTHERM Installation and maintenance instructions 31
Appendix
A Heat pump schematic
T T
T
T T
T
T
T
PP
P
SW
Mesh filter Mesh filter
P
P
Sensors & Switches:
- 8 x T
- 4 x P sensor
- 1 x P switch
- 1 x V flow rate sensor
A12 (230 V)
& A13 (PWM)
S8
S2
HE1
S13
S11 A7
S14
S16
S10
HE2
S18
S4
S3
S17
S15
A10 (230 V)
& A11 (PWM)
A1
S1
S22
A1 Compressor
A7 Electronic expansion valve
A10/ A11 Heating pump (relay and pulse-width modulation)
A12/ A13 Source pump (relay and pulse-width modulation)
HE1 Condenser
HE2 Evaporator
S1 Compressor inlet temperature sensor
S2 Compressor outlet temperature sensor
S3 High-pressure sensor
S4 High-pressure switch
S8 Source inlet temperature sensor
S10 Source outlet temperature sensor
S11 Temperature sensor of the electronic expansion
valve with HEX heat source
S13 Heating return temperature sensor
S14 Heating flow temperature sensor
S15 Heating circuit flow rate sensor
S16 Temperature sensor of the electronic expansion
valve with HEX heating
S17 Heating circuit pressure sensor
S18 Heat source pressure sensor
S22 Low-pressure sensor
B Installer level overview
Setting level Values Unit Increment, select Default setting Setting
Min. Max.
Installer level →
Enter code 00 99 1 (competent person
code 17)
00
Installer level → List of faults →
F.514 – F.743
2)
Deleting
Installer level → Test menu → Statistics →
Compressor hours Current value h
Compressor starts Current value
Build. pump hours Current value h
Build. pump starts Current value
Environm. pump hours Current value h
1)
Can only work in conjunction with the VWZ ZK accessory.
2)
Fault lists (section 9.1) are only available, and can only be deleted, if faults have occurred.
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