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Vaillant ecoTEC VU 656/4 User Manual

Vaillant ecoTEC VU 656/4
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Installation and maintenance instructions ecoTEC 0020029173_0112
4.5 Required minimum gaps/assembly clearances
For the installation/assembly of the boiler as well as for
carrying out future maintenance tasks, you need the
minimum gaps and assembly clearances given below:
400
500
Fig. 4.3 Required minimum gaps/assembly clearances
It is not necessary to ensure sufficient clearance
between the boiler and combustible materials or
components as the temperature of the boiler will always
be less than the maximum permissible temperature of
85 °C due to its rated heating output.
4.6 Using the installation template
Only use the assembly template provided to mount the
boiler.
Align the installation template vertically and fix it to
the wall.
Mark the positions of the drill holes for the hanging
bracket and also the position of the wall opening for
the flue pipe on the wall.
Remove the assembly template from the wall.
Drill 2 holes for the hanging bracket in the wall, each
with a diameter of 8 mm.
If necessary cut the aperture in the wall for the flue
pipe.
4.7 Mounting the boiler
d
Danger!
Danger of personal injury and damage to
property from falling boiler!
When assembling the boiler make sure that the
fixing point has a sufficient load-bearing
capacity. Also take the condition/nature of the
wall into account.
3
75
175
270
25
44
1
2
Fig. 4.4 Mounting the boiler
Mount the hanging bracket (1) on the wall using the
wall plugs and screws (2) provided with the boiler.
Hang the boiler (3) on the hanging bracket from
above using the suspension bracket.
4 Assembly

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Vaillant ecoTEC VU 656/4 Specifications

General IconGeneral
CategoryBoiler
Output65 kW
TypeCondensing
Fuel TypeNatural Gas
InstallationWall-mounted
Max. nominal heat output 80/60 °C65 kW
Modulation range20-100%
NOx class5
Protection classIPX4D
Efficiency RatingA
Heating CircuitYes
Max Operating Pressure3 bar
Efficiency98%
DHW CircuitNo

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