Vaillant ecoFIT pure Series - Page 9

0020230533_06 ecoFIT pure Installation and maintenance instructions 9
VU 126/6-3 (H-GB) VU 156/6-3 (H-GB) VU 186/6-3 (H-GB) VU 256/6-3 (H-GB)
Maximum heat input – hot
water (Q max.)
15.3 kW 18.4 kW 25.7 kW 30.6 kW
Minimum heat input – hot
water (Q min.)
4.5 kW 4.5 kW 5.0 kW 6.1 kW
VU 306/6-3 (H-GB)
Maximum heat output
30 kW
Effective output range (P)
at 40/30 °C
7.6 to 32.4 kW
Effective output range (P)
at 50/30 °C
7.5 to 31.8 kW
Effective output range (P)
at 80/60 °C
7.2 to 30.5 kW
Domestic hot water heat
output (P)
7.1 to 35.0 kW
Maximum heat input –
heating (Q max.)
30.6 kW
Minimum heat input – heat-
ing (Q min.)
7.2 kW
Maximum heat input – hot
water (Q max.)
35.7 kW
Minimum heat input – hot
water (Q min.)
7.2 kW
Technical data – Heating
VU 126/6-3 (H-GB) VU 156/6-3 (H-GB) VU 186/6-3 (H-GB) VU 256/6-3 (H-GB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 to 80 ℃ 10 to 80 ℃ 10 to 80 ℃ 10 to 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
530 l/h 655 l/h 788 l/h 1,094 l/h
Nominal water flow (ΔT = 30 K)
353 l/h 436 l/h 525 l/h 729 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
1.23 l/h 1.53 l/h 1.84 l/h 2.55 l/h
ΔP heating at nominal flow (ΔT =
20 K)
0.025 MPa
(0.250 bar)
0.025 MPa
(0.250 bar)
0.025 MPa
(0.250 bar)
0.025 MPa
(0.250 bar)
VU 306/6-3 (H-GB)
Max. flow temperature adjustment
range (default setting: 75 °C)
10 to 80 ℃
Maximum permissible pressure
0.3 MPa
(3.0 bar)
Nominal water flow (ΔT = 20 K)
1,102 l/h
Nominal water flow (ΔT = 30 K)
876 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
3.06 l/h
ΔP heating at nominal flow (ΔT =
20 K)
0.025 MPa
(0.250 bar)
Technical data – Electrics
VU 126/6-3 (H-GB) VU 156/6-3 (H-GB) VU 186/6-3 (H-GB) VU 256/6-3 (H-GB)
Electrical connection
230 V / 50 Hz 230 V / 50 Hz 230 V / 50 Hz 230 V / 50 Hz
Built-in fuse (slow-blow)
T2/2A, 250V T2/2A, 250V T2/2A, 250V T2/2A, 250V
Max. electrical power consump-
tion
75 W 81 W 87 W 87 W
Standby electrical power con-
sumption
2 W 2 W 2 W 2 W
IP rating
IPX4D IPX4D IPX4D IPX4D