Example 2
Direct connection of heating circuits with bypass valve
Radiators can be switched off for cooling mode via 2-way directional valves
(image shows heating mode)
M
M
M
M
CLOSE
OPEN
N
1 2 3 4 5 6
7 8
9 10 11 12
13 14
15 16
17 18
19 20
21
22 23
CLOSE
OPEN
CLOSE
OPEN
N
COOL
HEAT
N
L
N
1
2
3
4
5
4 6
7
min.
50
l
1
Cold water connection
2
Room thermostat
3
Outside temperature sensor
(integrated in the outdoor unit)
4
Control for heating circuit
mixer (building side)
5
Hot water
tank
6
2-way directional valve
(open in the heating mode)
7
Dew point sensor
(building side)
Schematic illustration – relevant standards and
guidelines must be observed!
Vessel for increasing the total water volume - to be used
when the total volume is lower than the minimum volume.