Appendix
0020250180_00 geoTHERM Installation and maintenance instructions
45
J.3
Basic hydraulic diagram 0020235580
1c
Heating/domestic hot water back-up boiler
2
Heat pump
3e
Circulation pump
5
Monovalent domestic hot water cylinder
8b
Potable water expansion relief valve
8c
Safety group
–
drinking water connection
8e
Heating diaphragm expansion vessel
8f
Diaphragm expansion vessel
–
potable water
9d
Bypass valve
9e
Domestic hot water generation prioritising diverter
valve
9h
Filling/draining cock
9j
Tamper-proof capped valve
10c
Non-return valve
12
System control
12b
Remote heat pump expansion module
12m
Outdoor temperature sensor
DHW
Cylinder temperature sensor
MA
Multi-function output