9
INSTALLATION AND USER MANUAL
d
v
Figure 1.5 - Horizontal distance between terminals
B
2
A
C
B
1
A
B
1
B
2
Figure 1.6 - Vertical terminals
d
h
Figure 1.4 - Verticale afstand tussen uitmondingen
1.5 Terminals
For the proper functioning of your PowerFan, the supply of air
and the discharge of combustion gases must not be impeded.
You can end up both horizontally (by means of a wall terminal)
and vertically (by means of a roof terminal).
Note:
Due to the mechanical discharge of the flue gases, it is
not necessary for the combustion air supply and the flue gas
discharge to end up in the same pressure range.
Two identical horizontal outlets are supplied as standard. The
outlet position must at all times comply with local regulations
regarding nuisance and ventilation openings. For other outlets,
these regulations must also be taken into account.
1.5.1 Distance between outlets
When opening into the same horizontal outlet area, the following
distances must be observed, with regard to the outlets of supply
air and flue gas discharge (see also figures 1.4 and 1.5);
D
h
= Horizontal distance = at least 30 cm
D
v
= Vertical distance = minimum 15 cm, whereby a partition
must be used to prevent mixing of combustion air (blue arrow)
and flue gases (red arrow).
In the case of a vertical outlet, both for supply (Ø100) and
discharge (Ø80) one must create a feed-through with approved
regular flueage materials, as shown in figures 1.6 and 1.7.
1.5.2 Supply of combustion air
The supply of combustion air may only come from outside. You
must take into account a thermal bridge. The combustion air
supply may be carried out in PVC.
Pay attention:
Never terminate flue gasses under the fresh air supply, when
both terminals are on the same wall.
Make sure that both outlets are at least 30 centimeters from the
ground level and that there is no way to block the openings.
