H Horizontal Terminal Positioning; I Technical Data - Vaillant ecoTEC plus VU GB 656/4-5 A Installation And Maintenance Instructions Manual

Appendix
H Horizontal terminal positioning
BS 5440-1 recommends that fanned flue chimney terminals should be positioned as follows:
a) at least 2 m from an opening in the building directly opposite, and
b) so that the products of combustion are not directed to discharge directly across a boundary if the products are likely to
cause a nuisance to a neighbour or discharge over a walkway or patio.
For IE see current issue of IS 813.
For boilers covered within this manual.
1) Dimensions D, E, F and G:
These clearances may be reduced to 25 mm without affecting the performance of the boiler. In order to ensure that the con-
densate plume does not affect adjacent surfaces the terminal should be extended as shown below.
The flue pipe must
Adequately secured
air/flue gas pipe protrude beyond any overhang
2) Dimension H:
This clearance may be reduced to 25 mm without affecting the performance of the boiler. However, in order to ensure that
the condensate plume does not affect adjacent surfaces a clearance of 300 mm is preferred.
For 1 and 2 above you can use a flue gas management kit to enable the termination point to be positioned and directed away
from the building fabric.
I Technical data
Technical data – Power/load
The lowest nominal heat output may be higher than the value in the technical data, depending on the design of the system
and the current operating status.
Nominal heat output range P at 40/30 °C
Nominal heat output range P at 50/30 °C
Nominal heat output range P at 60/40 °C
Nominal heat output range P at 80/60 °C
Maximum heat input, heating side
Minimum heat input heating side
Technical data – Heating
Maximum flow temperature
Max. flow temperature adjustment range (default setting:
75 °C)
Permissible total overpressure
Circulation water volume (with reference to ΔT= 20 K)
Approx. condensate rate (pH value approx. 3.7) in heat-
ing mode at 40/30 °C
44
Balcony/eaves
Gutter
VU GB 656/4-5 A
14.9 ... 69.2 kW
14.6 ... 67.6 kW
14.1 ... 65.7 kW
13.8 ... 63.7 kW
65.0 kW
14.0 kW
VU GB 656/4-5 A
90 ℃
35 ... 85 ℃
0.3 MPa
(3.0 bar)
2,750 l/h
6.5 l/h
Installation and maintenance instructions ecoTEC plus 0020214491_01