Vaillant aroTHERM plus Quick Manual page 27

8 1
. 5
8 0
B
A
A Installation heating
circuit flow
A
800
700
600
500
400
300
200
1
100
0 500 1000 1500 2000 2500 3000
A Pressure (mbar)
B Flow rate (l/hour)
1 Position "III"
Installer's Quick Guide - aroTHERM plus 11/2020
5
1 0
8 1
. 5
B Installation heating
circuit flow
3
2
2 Position "II"
3 Position "I"
1
2
3
4
5
1 Installation heating
circuit inlet 1"
2 Installation heating
circuit outlet 1"
A Glycol water circuit flow
to heat pump
A
300
250
200
150
100
50
0 500 1000
B
A Pressure (mbar)
B Flow rate (l/hour)
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3 Glycol water circuit outlet
to heat pump 1"
4 Safety valve drain
5 Glycol water circuit inlet
from heat pump 1"
A
B
B Glycol water circuit
return from heat pump
1
2
1500 2000 2500 3000
1 50% glycol circuit flow
rate
2 Water circuit flow rate
B
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