Vaillant ecoTEC plus VU 6/5-5 Series User Manual

12 Installation and maintenance instructions 0020244997_07
Technical data – Power/loading G31
VU 186/5-
5 (P-GB)
ecoTEC plus
618
VU 306/5-
5 (P-GB)
ecoTEC plus
630
VUW 246/5-
5 (P-GB)
ecoTEC plus
832
Nominal heat output
range P at 50/30 °C
5.4 to 19.4 kW 9.4 to 31.9 kW 6.5 to 25.5 kW
Nominal heat output
range P at 80/60 °C
5.0 to 18.2 kW 8.5 to 30.4 kW 6.0 to 24.4 kW
Maximum heat output
for domestic hot water
generation
18.3 kW 30.4 kW 31.8 kW
Maximum heat input for
domestic hot water gen-
eration
18.6 kW 30.9 kW 32.2 kW
Maximum heat input,
heating side
18.6 kW 30.9 kW 24.7 kW
Minimum heat input
5.3 kW 9.0 kW 6.4 kW
Nominal heat input ef-
ficiency (stationary) at
40/30 °C
104.0 % 104.0 % 104.0 %
Nominal heat input ef-
ficiency (stationary) at
50/30 °C
104.0 % 103.0 % 103.0 %
Nominal heat input ef-
ficiency (stationary) at
60/40 °C
101.0 % 101.0 % 101.0 %
Nominal heat input ef-
ficiency (stationary) at
80/60 °C
98.0 % 98.0 % 98.0 %
Technical data – Heating
VU 126/5-
5 (H-GB)
ecoTEC plus
612
VU 156/5-
5 (H-GB)
ecoTEC plus
615
VU 186/5-
5 (H-GB)
ecoTEC plus
618
VU 186/5-
5 (P-GB)
ecoTEC plus
618
VU 246/5-
5 (H-GB)
ecoTEC plus
624
VU 306/5-
5 (H-GB)
ecoTEC plus
630
Maximum flow temperat-
ure
85 ℃ 85 ℃ 85 ℃ 85 ℃ 85 ℃ 85 ℃
Max. flow temperature
adjustment range (default
setting: 75 °C)
30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃
Permissible operating
pressure
0.25 MPa
(2.50 bar)
0.25 MPa
(2.50 bar)
0.25 MPa
(2.50 bar)
0.25 MPa
(2.50 bar)
0.25 MPa
(2.50 bar)
0.25 MPa
(2.50 bar)
Minimum pressure for
full operation
0.08 MPa
(0.80 bar)
0.08 MPa
(0.80 bar)
0.08 MPa
(0.80 bar)
0.08 MPa
(0.80 bar)
0.08 MPa
(0.80 bar)
0.08 MPa
(0.80 bar)
Expansion vessel capa-
city
10 l 10 l 10 l 10 l 10 l 10 l
Circulation water volume
(with reference to
ΔT= 20 K)
525 l/h 662 l/h 796 l/h 796 l/h 1,049 l/h 1,307 l/h
Approx. condensate rate
(pH value 3.5 to 4.0) in
50/30 °C heating mode
1.2 l/h 1.6 l/h 1.9 l/h 1.9 l/h 2.5 l/h 3.1 l/h
Remaining feed head of
pump (at nominal circula-
tion water volume)
0.025 MPa
(0.250 bar)
0.025 MPa
(0.250 bar)
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 306/5-
5 (P-GB)
ecoTEC plus
630
VU 386/5-
5 (H-GB)
ecoTEC plus
637
VUW 196/5-
5 (H-GB)
ecoTEC plus
825
VUW 246/5-
5 (H-GB)
ecoTEC plus
832
VUW 246/5-
5 (P-GB)
ecoTEC plus
832
VUW 306/5-
5 (H-GB)
ecoTEC plus
835
Maximum flow temperat-
ure
85 ℃ 85 ℃ 85 ℃ 85 ℃ 85 ℃ 85 ℃
Max. flow temperature
adjustment range (default
setting: 75 °C)
30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃ 30 to 80 ℃

Vaillant ecoTEC plus VU 6/5-5 Series Specifications

General

Brand	Vaillant
Model	ecoTEC plus VU 6/5-5 Series
Category	Boiler
Language	English