Section 4 – Installation
4.1 Requirements at the installation site
•
The location must be frost-free.
•
The room temperature should not fall below +5°C.
•
The Fresh air intake must be sited in an area free from unwanted odours and far enough away from the
Exhaust air outlet to prevent re-circulation.
•
The condensate drains must be protected from freezing.
•
Make sure there is sufficient space around the unit for maintenance and repair work. (See dimensional
drawing).
•
We strongly recommend you consult a qualified specialist.
WARNING:
Free access to the unit and to the
switch disconnecting it from the power supply
must be ensured at all times.
NOTE!
Air inlet and outlet openings and air
transfer openings must not be obstructed,
covered or closed so that an unhindered
airflow is ensured. Settings made by the
qualified technician must not be changed.
WARNING:
Alterations made to the unit or to the
installed system as a whole as well as
structural alterations can affect safety; consult
a qualified technician.
WARNING:
Using the ventilation unit together with
fuel burning devices (e.g. fire places, gas
stoves) is subject to special requirements. Any
applicable national as well as regional
guidelines and regulations must be observed.
Fig. 4.1 Space needed for maintenance
4.2 Installation of the unit
The ventilation unit cannot be mounted on a floor.
Condensation drains must be fitted to the unit. It is
designed to be wall mounted.
Fig. 4.2 Backplate mounted to the wall, ready for remounting the unit.
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Section 6 – Control / Service menu
WARNING:
IF THE HIGHER FLOW RATES REQUIRED FOR OPEN FLUE ROOMS ARE NOT CORRECTLY SET THERE IS
A DANGER THAT FLUE GASES COULD BE DRAWN BACK INTO THE ROOM, WITH THE
CONSEQUENTIAL RISK OF SERIOUS INJURY OR DEATH.
WARNING:
Settings must only be changed by a qualified technician. If in doubt, we recommend you consult a
qualified specialist.
•
Jumper L13 installed : safety function
disabled
•
Jumper L13 removed : safety function
enabled
Fig. 6.12A Display circuit board with jumper L13
Fig. 6.12B Display circuit board without jumper L13
6.5.2 Frost protection of the heat exchanger
When the outdoor temperatures are very low, a frost protection function will operate in order to prevent
freezing of the heat exchanger.
Frost protection of the heat exchanger is activated when the Fresh air temperature drops below 3°C.
To change the frost protection temperature :
Use the “Change settings” menu and alter the Defrost Heater Switching temperature. (See 6.3.2, Change
settings).
Automatic frost protection method :
Flue not used (Jumper L13 installed): Supply fan is switched off for between 15 – 30 minutes.
Flue in use (Jumper L13 removed): Bypass shutter is opened for between 15 – 30 minutes.
Note: The frost protection time of between 15 – 30 minutes depends on the Extracted temperature.
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