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Installation and Operating Instructions
Central ventilation unit – KWL 470 W/W ET
8.2.7 Weekly programme
• Activate/deactivate weekly programme
• Create/edit weekly programme
The ventilation profile changes in the following order by
clicking on a field (cf. Fig. 35):
Ventilation profile "At home" (1x click)
Ventilation profile "Away from home" (2x clicks)
Ventilation profile "Intensive ventilation" (3x clicks)
Delete ventilation profile (4x clicks); the previous
ventilation profile is automatically applied.
ⓘ T he ventilation unit cannot be deactivated via
the weekly programme. A ventilation profile is
always active .
• Delete weekly programme
8.3
Unit data
8.3.1 Ventilation unit status
The following ventilation unit status data is displayed or can be adjusted:
• Status
Activate/deactivate ventilation unit.
• Last power failure
Displays the days since the last power failure.
• Operating time
Displays the operating time in days.
8.3.2 Time, Date
The following time and date data can be adjusted:
• Date
• Time
• Daylight saving time
• 24 hr format
8.3.3 Ventilation unit data
The following ventilation unit data is displayed:
• Model
• Series number
• Type
• Software version
• Rel. humidity sensors (number)
• CO2/VOC sensors (number)
• Alignment
• UUID
• Cloud service
• IP address
• Gateway
• Mask
8.4
Service menu
8.4.1 Temperatures
The current temperatures are displayed:
• Supply air
• Exhaust air
• Intake air
• Extract air
8.4.2 Self-diagnosis
ⓘ The self-diagnosis can take up to 20 minutes. The unit must be activated for longer than 15 minutes to perform
the self-diagnosis.
The availability and function of the following components can be tested via the self-diagnosis:
• Heat recovery
ⓘ If the external temperature is above 10 °C, the function test cannot be performed.
Self-diagnosis is successful if the heat recovery is between 60-100 %.
• Bypass
ⓘ If the temperature difference between extract air and intake air is ≥5 °C, the function test cannot be perfor-
med.
The bypass function must be active.
Self-diagnosis is successful if there is an increase in the supply air side efficiency determined by the unit.
• Heating element
The pre-heater must be activated.
Self-diagnosis is successful if the supply air temperature increases by +2 °C.
24
Fig. 35
1x
2x
3x
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