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)
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