Vaillant ecoFIT pure Series Installation And Maintenance Instructions Manual page 9

Effective output range (P)
at 50/30 °C
Effective output range (P)
at 80/60 °C
Domestic hot water heat
output (P)
Maximum heat input –
heating (Q max.)
Minimum heat input – heat-
ing (Q min.)
Maximum heat input – hot
water (Q max.)
Minimum heat input – hot
water (Q min.)
Maximum heat output
Effective output range (P)
at 40/30 °C
Effective output range (P)
at 50/30 °C
Effective output range (P)
at 80/60 °C
Domestic hot water heat
output (P)
Maximum heat input –
heating (Q max.)
Minimum heat input – heat-
ing (Q min.)
Maximum heat input – hot
water (Q max.)
Minimum heat input – hot
water (Q min.)
Technical data – Heating
Max. flow temperature ad-
justment range (default
setting: 75 °C)
Maximum permissible
pressure
Nominal water flow
(ΔT = 20 K)
Nominal water flow
(ΔT = 30 K)
Approximate value for the
condensate volume (pH
value between 3.5 and 4.0)
at 50/30 °C
Max. flow temperature ad-
justment range (default
setting: 75 °C)
Maximum permissible
pressure
Nominal water flow
(ΔT = 20 K)
0020230535_07 ecoFIT pure Installation and maintenance instructions
VU 126/6-3 OV (H-GB) VU 156/6-3 OV (H-GB)
4.7 to 12.8 kW 4.7 to 15.9 kW
4.5 to 12.3 kW 4.5 to 15.2 kW
4.4 to 15.0 kW 4.4 to 18.0 kW
12.3 kW 15.3 kW
4.5 kW 4.5 kW
15.3 kW 18.4 kW
4.5 kW 4.5 kW
VU 256/6-3 OV (H-GB) VU 306/6-3 OV (H-GB)
25 kW 30 kW
6.5 to 27.0 kW 7.6 to 32.4 kW
6.4 to 26.5 kW 7.4 to 31.8 kW
6.1 to 25.4 kW 7.1 to 30.5 kW
6.0 to 30.0 kW 7.0 to 35.0 kW
25.5 kW 30.6 kW
6.1 kW 7.1 kW
30.6 kW 35.7 kW
6.1 kW 7.1 kW
VU 126/6-3 OV (H-GB) VU 156/6-3 OV (H-GB)
10 to 80 ℃ 10 to 80 ℃
0.3 MPa 0.3 MPa
(3.0 bar) (3.0 bar)
530 l/h 655 l/h
353 l/h 436 l/h
1.23 l/h 1.53 l/h
VU 256/6-3 OV (H-GB) VU 306/6-3 OV (H-GB)
10 to 80 ℃ 10 to 80 ℃
0.3 MPa 0.3 MPa
(3.0 bar) (3.0 bar)
1,094 l/h 1,313 l/h
VU 186/6-3 OV (H-GB)
5.2 to 19.1 kW
5.0 to 18.3 kW
4.9 to 25.2 kW
18.4 kW
5.0 kW
25.7 kW
5.0 kW
VU 356/6-3 OV (H-GB)
35 kW
7.6 to 37.8 kW
7.0 to 35.8 kW
7.2 to 34.8 kW
7.1 to 35.0 kW
35.7 kW
7.2 kW
35.7 kW
7.2 kW
VU 186/6-3 OV (H-GB)
10 to 80 ℃
0.3 MPa
(3.0 bar)
788 l/h
525 l/h
1.84 l/h
VU 356/6-3 OV (H-GB)
10 to 80 ℃
0.3 MPa
(3.0 bar)
1,535 l/h
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