I Technical Data - Vaillant ecoFIT pure 412 Installation And Maintenance Instructions Manual

I Technical data
Technical data – Heating
Max. flow temperature adjustment
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 adjustment
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
Technical data – G20 power/loading G20
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.)
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.)
0020230535_05 ecoFIT pure Installation and maintenance instructions
VU 126/6-3 OV (H-
GB)
10 ... 80 ℃
0.3 MPa
(3.0 bar)
530 l/h
353 l/h
1.23 l/h
VU 306/6-3 OV (H-
GB)
10 ... 80 ℃
0.3 MPa
(3.0 bar)
1,313 l/h
876 l/h
3.06 l/h
VU 126/6-3 OV (H- VU 156/6-3 OV (H-
GB) GB)
12 kW 15 kW
4.8 ... 13.0 kW 4.8 ... 16.2 kW
4.7 ... 12.8 kW 4.7 ... 15.9 kW
4.5 ... 12.3 kW 4.5 ... 15.2 kW
4.4 ... 15.0 kW 4.4 ... 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 306/6-3 OV (H- VU 356/6-3 OV (H-
GB) GB)
30 kW 35 kW
7.6 ... 32.4 kW 7.6 ... 37.8 kW
7.4 ... 31.8 kW 7.0 ... 35.8 kW
7.1 ... 30.5 kW 7.2 ... 34.8 kW
7.0 ... 35.0 kW 7.1 ... 35.0 kW
30.6 kW 35.7 kW
VU 156/6-3 OV (H- VU 186/6-3 OV (H-
GB) GB)
10 ... 80 ℃ 10 ... 80 ℃
0.3 MPa 0.3 MPa
(3.0 bar) (3.0 bar)
655 l/h 788 l/h
436 l/h 525 l/h
1.53 l/h 1.84 l/h
VU 356/6-3 OV (H-
GB)
10 ... 80 ℃
0.3 MPa
(3.0 bar)
1,535 l/h
1,023 l/h
3.65 l/h
VU 186/6-3 OV (H-
GB)
18 kW
5.3 ... 19.5 kW
5.2 ... 19.1 kW
5.0 ... 18.3 kW
4.9 ... 25.2 kW
18.4 kW
5.0 kW
25.7 kW
5.0 kW
Appendix
VU 256/6-3 OV (H-
GB)
10 ... 80 ℃
0.3 MPa
(3.0 bar)
1,094 l/h
729 l/h
2.55 l/h
VU 256/6-3 OV (H-
GB)
25 kW
6.5 ... 27.0 kW
6.4 ... 26.5 kW
6.1 ... 25.4 kW
6.0 ... 30.0 kW
25.5 kW
6.1 kW
30.6 kW
6.1 kW
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