Example 3
Direct connection of heating circuits with bypass valve
Radiators can be switched off for cooling mode via 2-way directional valves
(image shows cooling mode)
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
M
M
M
M
1
2
3
4
5
4 6
7
min.
50
l
Schematic illustration – relevant standards and
guidelines must be observed!
5
Hot water
tank
1
Cold water connection
2
Room thermostat
3
Outside temperature sensor
(integrated in the outdoor unit)
4
Control for heating cir-
cuit mixer (building side)
6
2-way directional valve
(closed in the cooling mode)
7
Dew point sensor
(building side)
Vessel for increasing the total water volume - to be used
when the total volume is lower than the minimum volume.
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