INSTALLATION
Fig. 9.1
Avoid rising bends.
- If the drain is run to a tank or butt, avoid installing the
condensed water pipe with its free end submerged in water
(see Figure 9.2).
Fig. 9.2
Avoiding submerging the end.
- Do not allow the drain line to be kinked or flattened which
could reduce the flow of water from the indoor unit (see
Figure 9.3).
Fig. 9.3
Avoid kinking the pipe.
- For drain pipes run to ground level outside, install the
condensed water pipe in such a way that the distance of its
free end from the floor is at least 5 cm (see Figure 9.4).
- 12 -
Fig. 9.4
Minimum distance from the floor.
Legend
H
Minimum distance from the floor: 5 cm
- Install the condensed water pipe in such a way that its free
end is kept away from unpleasant odours, such as from open
drains, to ensure that they are not drawn back into the unit
(see Figure 9.5).
Fig. 9.5
Avoids unpleasant odours.
9.3.4
Making holes for the pipes
• Case A: Pipework exiting from the rear of the unit.
In this case, a suitable hole must be made in the wall behind the
unit (see Figures 9.6 and 9.7).
- Drill a hole in accordance with the diameter and position as
indicated in Figures 9.6 and 9.7, ensure the hole is slightly
descending to the outside to allow for a fall in the drain line.
The dimensions are given in mm.
VAI3-MWN-I_EN - 09/14 - Vaillant