Example 5
Hydraulic decoupling of the heating circuits via a buffer tank
Bivalent operation with an additional heating unit via an external system controller
Hot water heating via a hot water tank
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
1
2
4
5
6
3
8
7
M
Schematic illustration – relevant standards and
guidelines must be observed!
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
Buffer tank
7
Higher-level control of
bivalent operation for
heat pump and
additional heating
8
Heating unit with burner
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