I Technical Data - Vaillant ecoTEC sustain 24 Installation And Maintenance Instructions Manual

Appendix
I Technical data
Technical data – Heating
Maximum heating flow temperature
(default setting – D.71)
Range for the heating flow temperat-
ure control
Safety discharge of expansion relief
valve
Maximum operating pressure
Nominal water flow (ΔT = 20 K)
ΔP heating at nominal flow (ΔT = 20
K), bypass closed
ΔP heating at nominal flow (ΔT = 20
K), bypass in the position set at the
factory
Approximate value for the condensate
volume (pH value between 3.5 and
4.0) at 50/30 °C
Expansion vessel capacity
Maximum heat output (default setting
– d.00)
Technical data – G20
Effective output range (P) at 50/30 °C
Effective output range (P) at 80/60 °C
Heat output range – domestic hot wa-
ter or cylinder reheating (P)
Maximum heat input – heating (Q
max.)
Minimum heat input – heating (Q min.)
Maximum heat input – domestic hot
water or cylinder reheating (Q max.)
Minimum heat input – domestic hot
water or cylinder reheating (Q min.)
Technical data – G31
Effective output range (P) at 50/30 °C
Effective output range (P) at 80/60 °C
Heat output range – domestic hot wa-
ter or cylinder reheating (P)
Maximum heat input – heating (Q
max.)
Minimum heat input – heating (Q min.)
Maximum heat input – domestic hot
water or cylinder reheating (Q max.)
Minimum heat input – domestic hot
water or cylinder reheating (Q min.)
50
VUW 246/7-2 (H- VUW 286/7-2 (H-
GB) GB)
75 ℃ 75 ℃
30 ... 80 ℃ 30 ... 80 ℃
0.3 MPa 0.3 MPa
(3.0 bar) (3.0 bar)
0.25 MPa 0.25 MPa
(2.50 bar) (2.50 bar)
797 l/h 797 l/h
0.024 MPa 0.024 MPa
0.043 MPa 0.043 MPa
1.87 l/h 1.87 l/h
8.0 l 8.0 l
Auto Auto
VUW 246/7-2 (H- VUW 286/7-2 (H-
GB) GB)
7.0 ... 20.1 kW 8.0 ... 20.1 kW
6.4 ... 18.5 kW 7.4 ... 18.5 kW
6.6 ... 24.3 kW 7.5 ... 28.1 kW
18.7 kW 18.7 kW
6.6 kW 7.6 kW
24.4 kW 28.5 kW
6.6 kW 7.6 kW
VUW 246/7-2 (H- VUW 286/7-2 (H-
GB) GB)
7.0 ... 20.1 kW 8.0 ... 20.1 kW
6.4 ... 18.5 kW 7.4 ... 18.5 kW
6.6 ... 24.3 kW 7.5 ... 28.1 kW
18.7 kW 18.7 kW
6.6 kW 7.6 kW
24.4 kW 28.5 kW
6.6 kW 7.6 kW
Installation and maintenance instructions ecoTEC sustain 0020253094_01
VUW 346/7-2 (H-
GB)
75 ℃
30 ... 80 ℃
0.3 MPa
(3.0 bar)
0.25 MPa
(2.50 bar)
797 l/h
0.026 MPa
0.050 MPa
1.87 l/h
8.0 l
Auto
VUW 346/7-2 (H-
GB)
9.1 ... 19.9 kW
8.4 ... 18.5 kW
8.4 ... 34.0 kW
18.7 kW
8.6 kW
34.6 kW
8.6 kW
VUW 346/7-2 (H-
GB)
9.1 ... 19.9 kW
8.4 ... 18.5 kW
8.4 ... 34.0 kW
18.7 kW
8.6 kW
34.6 kW
8.6 kW