Installation; Connection Of The Air Ducts - Zehnder ComfoFond-L Eco 350 L Manuel De L'installateur

3. Installation conditions
In order to determine whether the ComfoFond-L
Eco can be installed in a certain area, the following
aspects must be taken into account:
The system must be fitted to allow sufficient room
around the ComfoFond-L Eco and ventilation unit
for the air connections and brine loops as well as
for carrying out maintenance activities;
The room must offer the following provisions:
- Air duct connections.
- 230V electrical connection.
- Provisions for the condensation drain.
- Brine loops for the pipe system.
The ComfoFond-L Eco must be installed in a
frost-free space;
The brine in the system must not freeze.
Irreversible damage will be caused to the
machine if the brine freezes.
The condensation must be drained off
frost-free, at a gradient, using a siphon;
We recommend that the ComfoFond-L Eco is
not installed in spaces with a higher average
humidity (as utility room). This is to prevent the
formation of condensation on the outside of the
ComfoFond-L Eco;
An outer valve is a requirement if the system is
used in areas where the temperature is lower than
-15ºC. This valve must shut off the supply air in
the event of a power failure.
The system can be damaged during a power
failure at temperatures lower than -15ºC, this is
why an outer valve is a requirement.

4. Installation

4.1 Connection of the air ducts

Take account of the following factors when mounting
air ducting:
Only use the supplied connecting material
between the ComfoFond-L Eco and ventilation
unit;
Insulate the outside air supply duct between the
roof/wall passage to render the
ComfoFond-L Eco damp proof. This prevents the
formation of condensation on the outside of the
ducts;
The air outlet on the ComfoFond-L Eco must be
connected to the outside air connection on the
ComfoAir Luxe;
The air outlet on the ComfoFond-L Eco 350 is on
the side of the ComfoFond-L Eco at the top;
The air outlet on the ComfoFond-L Eco 550 is on
the upper side of the ComfoFond-L Eco;
The outside air must be connected to the air inlet
on the ComfoFond-L Eco. The air inlet on
the ComfoFond-L Eco is on the side of the
ComfoFond-L Eco at the bottom.
Supply Air
Outside Air
ComfoFond-L Eco 350
Left
Supply Air
Outside Air
ComfoFond-L Eco 550
Left
Supply Air
ComfoFond-L Eco 350
Right
Supply Air
ComfoFond-L Eco 550
Right
19 - EN