106
Aquarea air / water heat pump – design handbook 07 / 2014
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.
