Fans; Other Servicing; Diagnostics - Swegon CASA R3 Smart Installation, Commissioning And Maintenance Instructions

6.5 Fans

The ventilation unit's fans must be checked at least
every two years. In particular, if the cooker hood is
mounted directly on the ventilation unit grease and dust
can accumulate on the extract air fan impeller and on
the walls of the ventilation unit's fan chamber. If dirt
builds up in the fans this can affect the functionality of
the ventilation unit.
Dismantling the fans from the ventilation unit for
cleaning
• Dismantle the guard plate from the heat exchanger.
• Dismantle the guard plates.
• Remove the fan.
• If necessary, clean with a soft brush. Be careful not
to dislocate the balancing weights. If the fan is very
dirty, allow a professional carry out the cleaning.
• Slide the fan into position.
• Fit the guard plates.
• Fit the guard plate on the heat exchanger.
The ventilation unit fans must be dismantled for
cleaning.

6.6 Other servicing

Clean the interior surfaces of the ventilation unit with a
vacuum cleaner or damp cloth.
Check that the condensate discharge outlet is not
clogged and check its outflow by pouring water on
the bottom of the ventilation unit. The condensate
discharge connection is located on the rear of the unit
under the rotary heat exchanger.
Ensure that dirt has not collected in 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
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6.7 Diagnostics

Unit operation can be monitored from Main menu/
Diagnostics menu.
• Service reminder.
Service reminder activation and service interval
setting. The menu also displays the time for the next
service.
• Temperatures.
The temperature values shown in the menu vary
according to which sensors are used in the unit.
NOTE! Fresh air temperature is measured inside
the unit and it may not correspond to outside
temperature.
• Smart functions.
The values shown in the menu vary according to
which Smart sensor is used in the unit.
Smart functions
A+
AQ
RH
AH
AH setpoint
A+ control
RH control
AQ control
Smart control
The A+, AQ and RH corresponds CO2, VOC and
humidity measurements. The AH an AH setpoint are
absolute humidity values used by auto humidity
control. Humidity boost starts when AH is above AH
setpoint.
The control information shows how much different
automatic Smart functions boost the ventilation with
respect to Home mode. The "Smart control" value
shows the total boost effect for all Smart functions.
• Fan speeds.
The menu shows the fan control values and
measurements.
• Heating and cooling.
The heating and cooling controls, the supply air set-
ting and the supply air temperature are shown on the
menu. In addition, the menu displays indicates the
state of the summer night cooling and preheating.
• Anti-frost protection.
Operating status for automatic defrosting and supply
air limiting.
• External control functions.
The menu includes external input statuses.
R2.060219
830 ppm
770 ppm
41 %
11,8 g/m
3
12,6 g/m
3
-3 %
0 %
4 %
1 %
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