Service; Service Reminder; To Open The Ventilation Unit; Filters - Swegon CASA R2 SMART Installation, Commissioning And Maintenance Instruction

R2 Smart

6. Service

6.1 Service reminder

The service reminder is activated with preset time
intervals and the symbol is displayed on the control
panel's screen and cooker hood indication LEDs. As a
factory setting, the service reminder is not in opera-
tion. It can be activated from Main menu/Diagnostics
/ Service reminder menu. The recommended service
interval for the ventilation unit is six months.
When servicing has been performed, the service re-
minder is reset from "Alarm" in the main menu. Service
reminder can always be reset under the main menu item
"Diagnostics / Service reminder".
Service reminder
Service reminder
Service interval
Next service
Reset counter

6.2 To open the ventilation unit

Before beginning any service work, isolate the power
supply voltage by removing electric plug. 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 to cool down.
The inspection door can be opened by turning the lock
bolts with a slotted screw driver. Support the top edge of
the door with one hand when you open the lock bolts.
Turn the service switch to the 0-position prior to com-
mencing servicing.

6.3 Filters

The filters should be replaced at least every six months.
The filters may need to be replaced more often in homes
where there is considerable dust or if there are many impu-
rities in the outdoor air.
In a new home, there is still moisture from the construc-
tion period, and the filters can become soiled more quickly
than usual. The first filter change should therefore be
made more often.
The ventilation unit must not be operated without
filters. Use only filters recommended by Swegon.
This is important, as filters with exactly the same ap-
pearance and size can have very different pressure losses
and filter capacity. If an incorrect filter is used, the venti-
lation unit may not work as designed and Swegon can't
be responsible for possible mailfunction. Check correct
filters from the list of components.
How to change filters,
instruction video:
www.swegonhomesolutions.com
Toolbox / How to change a filter
22
All rights to changes reserved.
6 m
6,0 m
2020-11-27

6.4 Heat exchanger

Check the condition of the heat exchanger whenever
servicing the unit.
Carefully rotate the heat exchanger rotor one revolution
to inspect the condition of the drive belt. Do not dam-
age the heat exchanger fins.
Check the condition of the brushes along the rotor
periphery.

6.5 Fans

The ventilation unit's fans must be checked at least
every two years.
Dismantling the fans for cleaning
(qualified service personnel only)
• Remove the filters from the ventilation unit.
• Open two wing screws on the fans.
• Pull out the fan.
• If the fans are pulled out completely, cut the cable tie
and disconnect the quick-fit connector.
• If necessary, clean the fan with a soft brush. Be care-
ful not to dislocate the fans balancing weights. If
significant amounts of dirt collect on the fan cleaning
should be left to a professional.
• Reinstall the fan cable and secure connection with
cable tie.
• Push the fan back and lock it in with wing screws.
• Remember install the filters.
The ventilation unit's fans must be removed, while
the ventilation ducts are cleaned.

6.6 Other servicing

Clean the inner surfaces of the ventilation unit by
vacuum cleaning or with a damp cloth, if needed.
Check that dirt has not collected on the surfaces of the
air heater, clean if necessary.
Check that the ventilation unit works normally and that
no alarms are shown on the screen.
Service check list
Every six month
Change filters, reset service reminder
Clean the inner surfaces
Check alarms from user panel
Clean the cooker hood crease filter
Every 2 years
Check and clean fans
Every 10 years
Clean the ducts
Check and adjust the air flows