Vaillant ecoTEC plus SERIES Operating Instructions Manual - page 29
Operating instructions ecoTEC plus 0020124810_FT1b
29
Technical data 10
ecoTEC plus
Unit
VUW GB
246/5-5
VUW GB
316/5-5
VUW GB
376/5-5
VUI GB
376/5-5
Nominal heat output range P at 40/30 °C
kW
4.1 - 20.8
5.7 - 26.2
7.0 - 30.6
7.0 - 30.6
Nominal heat output range P at 50/30 °C
kW
4.1 - 20.4
5.6 - 25.7
6.9 - 30.1
6.9 - 30.1
Nominal heat output range P at 60/40 °C
kW
3.9 - 19.8
5.5 - 24.9
6.7 - 29.2
6.7 - 29.2
Nominal heat output range P at 80/60 °C
kW
3.8 - 19.0
5.2 - 24.0
6.4 - 28.0
6.4 - 28.0
Hot water output
kW
24.0
30.3
38.0
38.0
Maximum thermal load for heating drinking water
kW
24.7
31.2
39.2
39.2
Maximum thermal load on heating-side
kW
19.6
24.7
28.9
28.9
Minimum thermal load
kW
3.9
5.4
6.6
6.6
Heating output setting range
kW
4 - 19
5 - 24
6 - 28
6 - 28
Heating
max. flow temperature
°C
85
Setting range max. flow temperature
(factory setting: 75 °C)
°C
30 - 80
permissible total over-pressure
bar
3.0
Circulation water volume (with reference to
T = 20 K)
l/min
817
1032
1204
1204
Condensate volume approx. (pH value 3.5- 4.0)
in heating mode 50 °C supply/30 °C return
l/h
2.0
2.5
2.9
2.9
Residual feed head pump
(at nominal circulation water volume)
mbar
250
200
Electrical power consumption at 30% part load
W
45
50
50
50
Hot water handling (only VUW)
Least water volume
l/min
1.5
Water volume (at
T = 35 K)
l/min
9.8
12.4
15.6
15.6
Water volume (at
T = 30 K)
l/min
11.5
14.5
18.2
18.2
Permitted overpressure
bar
10.0
Required connection pressure
bar
0.35
Hot water discharge temperature range
°C
35 - 65
General
Unit gas connection
Inches
G 1/2
Unit heating connection
Inches
G 3/4
Unit cold and hot water connection
Inches
G 3/4
Exhaust gas connecting pieces
mm
60/100 (concentric), optional 80/125 (concentric)
Gas connection pressure (gas flow pressure)
natural gas, G20
mbar
20
Gas connection pressure (gas flow pressure)
propane, G31
mbar
37
Connection value at 15 °C and 1013 mbar
(based on hot water production if necessary)
G20
G31
m
3
/h
kg/h
2.6
1.924
3.3
2.42
4.1
3.05
4.1
3.05
Exhaust gas mass flow min./max.
g/s
1.8/11.1
2.4/14.0
3.0/17.6
3.0/17.6
Flue gas temperature min./max.
°C
40/70
Exhaust gas connection approval
C13, C33, C43, C53, C63, C83, C93, B53
Standard utilisation rate based on nominal heat output
(in accordance with DIN 4702, Part 8) based on Hi
(heating value)
at 75/60 °C
at 40/30 °C
%
%
107
109
Standard utilisation rate based on nominal heat output
(in accordance with DIN 4702, Part 8) based on Hs
(calorific value)
at 75/60 °C
at 40/30 °C
%
%
96.4
98.2
30% efficiency
%
108
NOx class
5
Unit dimensions (H x W x D)
mm
720 x 440 x 335
720 x 440 x 369 720 x 440 x 403
Installation weight approx.
kg
36
38
41
43
Tab. 16.2 Technical data ecoTEC plus VUW/VUI
(continued on next page)