Viessmann Vitovalor PT2 E11T Installation And Service Instructions Manual page 53

Filling the gas condensing module and heating...
Total heating output
kW
200 to 600
> ≤
600
>
D
B
A
C
Fig. 48
Heating return
A
B Heating flow
E
F
Fig. 49
Specific system volume
< 20 l/kW
1.5 mol/m 3 (8.4 °dH)
≤
< 0.02 mol/m 3 (0.11 °dH)
C
A
B
D
C
D
Commissioning, inspection, maintenance
(cont.)
20 l/kW to < 50 l/kW
≥
0.02 mol/m 3 (0.11 °dH)
≤
< 0.02 mol/m 3 (0.11 °dH)
D
C
50 l/kW
≥
< 0.02 mol/m 3 (0.11 °dH)
< 0.02 mol/m 3 (0.11 °dH)
F
E
53