14
W4.311016
Swegon reserves the right to alter specifications.
www.swegonhomesolutions.com
4.1 Service reminder
The service reminder is activated with preset time inter-
vals and the symbol is displayed on the control panel’s
screen. As a factory setting, the service reminder is not
in operation. It can be put into operation under the
main menu item “Diagnostics”/”Service reminder”. The
recommended service interval for the ventilation unit is
six months.
When servicing has been performed, the service remind-
er is reset from “Alarm” in the main menu.
4.2 To open the ventilation unit
Before you begin any service work, isolate the power
supply voltage to the ventilation unit by pulling out its
electric plug from the wall socket. Wait a few minutes
before you open the inspection door of the ventilation
unit so that the fans have time to stop and possible air
heaters have time to cool down.
The inspection door can be opened by turning the lock
bolt with a screw driver for slotted screw heads.
4.3 Filter
The filters should be replaced at least every six months.
The filters may need to be cleaned or replaced more often
in homes where there is considerable dust or if there are
many impurities in the outdoor air.
The ventilation unit must not be operated without filters.
Use only filters recommended by Swegon in the ventila-
tion unit. This is important, as filters with exactly the same
appearance and size can have very different pressure losses
and filter capacity. If an incorrect filter is used, it is not cer-
tain that the ventilation unit will work as designed. Check in
the list of components that you have selected correct filters.
4.4 Heat exchanger
You should check the condition of the heat exchanger
whenever you service the unit.
Withdraw the heat exchanger from the unit for inspec-
tion. Do not damage the heat exchanger fins.
Make sure that the passages through the heat exchang-
er rotor are not clogged and clean them e.g. with run-
ning warm water if required. Never use cleaning agents.
The passages of the heat exchanger should be dry
before you reinstall the heat exchanger in the unit.
4.5 Fans
The ventilation unit’s fans must be checked at least
every two years.
Before you remove the fans, you must dismantle the
extract air filter and the heat exchanger from the venti-
lation unit. Then disconnect the plug-in contacts of the
fans (note the locking claws on the side of the contact.
Then unscrew the locking bolts located on the partition
wall of the ventilation unit.
4. Service
Important
The ventilation unit must not be operated
without filters! Use only filters recom-
mended by Swegon in the ventilation unit.
Find the correct filter in the Section enti-
tled: ”Technical data”.
!
!
3.10 Change the service code
This menu is used to change the code to access the set-
ting menu.
3.11 Use
Issues with reference to the usage of the ventilation
system are dealt with in the instructions for use supplied
with the unit.
Enter code
Accept
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Summary of Contents for CASA W4 Smart
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