Vaillant ecoFIT pure 830 User Manual

8 Installation and maintenance instructions ecoFIT pure 0020230531_06
VUW 256/6-3 (H-
GB)
VUW 306/6-3 (H-
GB)
VUW 356/6-3 (H-
GB)
Effective output range (P)
at 50/30 °C
5.3 to 19.1 kW 6.3 to 26.5 kW 7.5 to 26.7 kW
Effective output range (P)
at 80/60 °C
5.0 to 18.3 kW 6.1 to 25.4 kW 7.2 to 25.6 kW
Domestic hot water heat
output (P)
5.0 to 25.2 kW 6.0 to 30.0 kW 7.1 to 35.0 kW
Maximum heat input –
heating (Q max.)
18.4 kW 25.5 kW 25.7 kW
Minimum heat input – heat-
ing (Q min.)
5.1 kW 6.1 kW 7.2 kW
Maximum heat input – hot
water (Q max.)
25.7 kW 30.6 kW 35.7 kW
Minimum heat input – hot
water (Q min.)
5.1 kW 6.1 kW 7.2 kW
Technical data – Heating
VUW 256/6-3 (H-
GB)
VUW 306/6-3 (H-
GB)
VUW 356/6-3 (H-
GB)
Max. flow temperature adjustment
range (default setting: 75 °C)
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)
Nominal water flow (ΔT = 20 K)
788 l/h 1,094 l/h 1,102 l/h
Nominal water flow (ΔT = 30 K)
525 l/h 729 l/h 876 l/h
Approximate value for the
condensate volume (pH value
between 3.5 and 4.0) at 50/30 °C
1.84 l/h 2.55 l/h 2.57 l/h
ΔP heating at nominal flow (ΔT =
20 K)
0.025 MPa
(0.250 bar)
0.025 MPa
(0.250 bar)
0.018 MPa
(0.180 bar)
Technical data – Domestic hot water
VUW 256/6-3 (H-
GB)
VUW 306/6-3 (H-
GB)
VUW 356/6-3 (H-
GB)
Specific flow rate (D) (ΔT = 30 K)
in accordance with EN 13203
12.1 l/min 14.2 l/min 16.5 l/min
Continuous flow rate (ΔT = 35 K)
622 l/h 730 l/h 849 l/h
Specific flow rate (ΔT = 35 K)
10.4 l/min 12.2 l/min 14.1 l/min
Minimum permissible pressure
0.03 MPa
(0.30 bar)
0.03 MPa
(0.30 bar)
0.03 MPa
(0.30 bar)
Maximum permissible pressure
1 MPa
(10 bar)
1 MPa
(10 bar)
1 MPa
(10 bar)
Recommended pressure
0.2 MPa
(2.0 bar)
0.2 MPa
(2.0 bar)
0.2 MPa
(2.0 bar)
Temperature range
35 to 60 ℃ 35 to 60 ℃ 35 to 60 ℃
Maximum water flow rate
8.0 l/min 10.0 l/min 12.0 l/min
Technical data – Electrics
VUW 256/6-3 (H-
GB)
VUW 306/6-3 (H-
GB)
VUW 356/6-3 (H-
GB)
Electrical connection
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
Max. electrical power consump-
tion
87 W 87 W 98 W
Standby electrical power con-
sumption
2 W 2 W 3 W
IP rating
IPX4D IPX4D IPX4D

Vaillant ecoFIT pure 830 Specifications

General

Output	30 kW
Efficiency Rating	A
Fuel Type	Natural Gas
ERP Rating	A
Mounting	Wall Mounted
DHW Output (kW)	30 kW
Efficiency (%)	94%
Efficiency	94%
Warranty	5 years
Type	Combi Boiler
Dimensions (H x W x D)	700 x 390 x 295 mm
Flow Rate	12.4 l/min