10 | Art.-nr.:
616711-A
Ubifl ux Vigor W225 | 11
3.3 Exploded view of appliance
The appliance shown above is a left-hand version: in the case of a right-hand version, the connector of the preheater, bypass valve and the siphon
connector are installed in mirror image!
1
Touchscreen
12
Heat exchanger
2
USB connector (X13)
13
Motor bypass valve
3
Service connector
14
Exhaust air fi lter
4
LED indicator
15
Bypass valve
5
Maximum protection preheater
16
Power cable 230 volt
6
Preheater
17
Relay output (X19)
7
Temperature sensor
18
24 volt connector (X18)
8
Supply fi lter
19
eBus connector (X17)
9
Exhaust fan
20
24 volt connector (X16)
10
Siphon
21
Modbus/ externalbus connector (X15)
11
Supply ventilator
22
Multiple switch connector (X14)
4 Operation
4.1 Description
The appliance is supplied ready for plugging in and works automatically according to the standard settings. The
discharged dirty indoor air warms up the fresh clean outdoor air. That saves energy while fresh air is supplied to
the desired rooms.
The control system has four ventilation modes. The air fl ow rate can be adjusted for each ventilation mode. The
constant volume control system ensures that the ventilation balance between the supply and exhaust fan is realized
independent of the duct pressure.
If no external control is connected on to the appliance, then the appropriate ventilation model can be chosen on
the touchscreen display.
For external control a 4-way switch ( Connecting extra multiple switch with fi lter indication page 37) can, for
example, be chosen, but control is also possible with the Air Control ( Connecting Air Control page 42), CO
2
sensor(s)
( Connecting CO₂ sensor(s) page 43), a humidity sensor ( Connecting humidity sensor page 45) or the App.
4.2 Bypass
The 100% bypass makes it possible to supply outside air, which is not heated up by the heat exchanger. Particularly
during summer nights it is desirable to supply cooler outside air. The warm air in the dwelling is then replaced as
much as possible by cooler outside air.
The bypass valve opens and closes automatically when a number of conditions are met (see table below for bypass
conditions).
Follow step numbers 2.1 to 2.6 in the settings menu in the user interface ( Setting values standard appliance
page 52) in order to adjust the operation of the bypass valve.
Bypassvalve open
|
The outdoor temperature is higher than 10°C (adjustable between 7°C and 15°C at step no. 2.3)
and
|
the outdoor temperature is lower than the indoor temperature of the dwelling
and
|
the temperature from the dwelling is higher than 24°C (adjustable between 15°C and 35°C at step no. 2.2)
Bypassvalve closed
|
The outdoor temperature is lower than 10°C (adjustable between 7°C and 15°C at step no. 2.3) C
or
|
the outdoor temperature is higher than the indoor temperature of the dwelling
or
|
the temperature from the dwelling is lower than the set temperature at step no. 2.2 in the settings menu minus
the set temperature at the hysteresis (step no. 2.4).
Bypass valve preconditions
The appliance features a ‘Bypass boost’ function. This means that when this function is switched on (can be switched at
step 2.5) the ventilation mode with an opened bypass valve goes to maximum air fl ow rate (adjustable at step no. 2.6).
