R3T gas line temperature sensor
17
15
16
INDOOR UINTOUTDOOR UINT
M
M
M
M
1
2
3
4
5
6
7
8
10
11
20
19
5
18
12
1 compressor
2 four-way valve
3 finned coil exchanger
4 fan motor
5 filter
6 electronic expansion valve
7 plate heat exchanger
11 flow switch
10 electric heater
9 air-vent valve
8 pump
18 water tank
12 3-way valve
17 other thermal system
16 radiator
15 under-floor heating
R6T water tank temperature sensor 1
R4T returning water temperature sensor
R1T plate outlet temperature sensor
t
R1T
R3T
t
R5T
t
R4T
t
t
R6T
t
R2T
9
19 expansion tank
20 safety valve
R2T Liquid line temperature sensor
R5T leaving water temperature sensor
t
R7T
R7T water tank temperature sensor 2
13
14
13 2-way valve
14 by-pass valve