Flue Exit; Fitting The Boiler Hanging Bracket; Installing Flue System; Fitting The Boiler - Vaillant ecoTEC plus 612 Instructions For Installation And Servicing

4 Boiler installation sequence
4.2

Flue exit

• If using rear flue mark the position of the air/flue duct
and its circumference.
Other flue options
Flue instructions for other flue systems such as vertical
RSF flues, flues run to the side of the boiler and the use
of additional bends etc. are detailed in the flue installa-
tion instructions provided with the boiler.
• Remove the template from the wall and plug the
drilled holes using the wallplugs supplied.
4.3

Fitting the boiler hanging bracket

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2
3
Fig. 4.3 Appliance with hanging bracket
• Fix the hanging bracket to the wall using the plugs and
screws provided with the appliance.
Note
Use alternative fixing holes where necessary.
Note
If the boiler is to be fitted in a timber framed
building ensure that the bracket is secured to a
substantial part of the timber frame capable of
taking the weight of the boiler.
4.4

Installing flue system

• Install the flue system (refer to the seperate air/flue
duct installation instructions).
4.5

Fitting the boiler

• Lift the boiler (3) up to the wall so that it is slightly
above the hanging bracket (1).
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Note
Lift the boiler from either side at the bottom
edge
• Lower the boiler slowly onto the hanging bracket so
that the cross member at the rear of the boiler fully
engages onto the hanging bracket.
4.6

Removing the front case

Fig. 4.4 Removing/fixing the front case
To remove the front section of the case, proceed as fol-
lows:
• Loosen the screw (1) on the bottom of the unit.
• Push in the two retaining clips (2) on the bottom of
the appliance until the case is released.
• Grasp the front case by its bottom edge, pull it towards
the front and remove it by lifting it off the unit.
4.7

General instructions for heating system

Caution!
Thoroughly cleanse the heating system before
connecting the appliance!
By doing that, residue such as welds, cinder,
hemp, putty, rust, rough dust and similar sub-
stances are removed from the pipes. Otherwise
such substances can be deposited in the appli-
ance and cause damage.
- The appliance is fitted with an expansion vessel (10 l/
0.75 bar). Before assembling the appliance check if
this volume is adequate. If not, an extra expansion ves-
sel must be provided by the plant, see Section 3.9.5.
Instructions for installation and servicing ecoTEC
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