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
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