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Installation and Operating Instructions
EN
Central ventilation unit – KWL 470 W/W ET
8.4.3 Test mode
The test mode can be implemented for the following components:
• Fan test
• Preheat test
• Bypass test
8.4.4 Error log
The existing unit errors are displayed.
8.5
Settings
8.5.1 Language
Select the desired language for the user interface.
8.5.2 Release code
Change release code.
ⓘ The release code is pre-set to 0000 as standard.
8.5.3 Perform cloud service / software update
• Connect cloud service
When you click on "Connect", the homepage will open automatically to register on the cloud service.
ⓘ W hen you click on "Connect", a software update will be carried out automatically.
If the registration page does not open automatically, wait for approx. 5 minutes until the software update is comple-
ted. Then reconnect to the cloud service.
Registration with the Cloud service is not required to perform an update.
• Disconnect cloud service
When you click on "Disconnect", the connection to the cloud service will be disconnected.
8.5.4 User level
3 user levels are available:
• Admin: The user has full access to all unit settings.
• Normal: The user can see the ventilation unit data and change some settings. Access to special settings is blocked.
• Restricted: The user can change the ventilation mode and see unit data. However, the user cannot edit any system
settings.
8.5.5 Child-proof lock
If the "Child-proof lock" function is active, the control element KWL-BE Touch can be unlocked with the PIN code 1001.
8.5.6 License
The licence conditions can be called up here.
8.6
Configuration
8.6.1 Fan setting
Set fan power for supply and extract air fans.
• Supply air
• Extract air
ⓘ The fan powers may only be changed during adjustment!
8.6.2 Sensor settings
Set the connected sensor parameters:
• Temperature control depending on
• Supply air
The supply air setpoint corresponds to the target supply air temperature in the current ventilation mode.
Example: If the target supply air temperature in the "At home" profile is 15 °C, then the supply air setpoint is
also 15 °C.
• Extract air
The set supply air temperature changes depending on the extract air temperature (up to ±10 °C).
If the extract air temperature is lower than the set supply air value, the supply air temperature setpoint will be
increased (max. 10 °C).
If the extract air temperature is higher than the set supply air value, the supply air temperature setpoint will be
reduced (max. 10 °C).
Example: The target supply air temperature in the "At home" profile is 20 °C and the room temperature is 24 °C.
The supply air temperature setpoint will be adjusted to 16 °C.
• Extract air Plus
The set supply air temperature changes depending on the extract air temperature (up to ±10 °C). The ventilation
unit increases the power if there is the possibility to reduce the room temperature with the intake air.
The fan power is not increased if the current supply air temperature is higher than the current extract air tempe-
rature in the room.
Example: The target supply air temperature in the "At home" profile is 20 °C and the set fan power is 50 %. The
room air temperature is 24 °C. The Extract air Plus method adjusts the target supply air temperature to
16 °C and the unit runs with a fan power of 90 % (if Boost mode is higher than 90 %).
• Rel. humidity
• Automatic
The limit values are automatically determined using the recent humidity curve.
• Manual
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