Appendix
0020250180_00 geoTHERM Installation and maintenance instructions
31
Appendix
A
Heat pump schematic
T
T
T
T
T
T
T
T
P
P
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.