DOL 434 LPV
Technical Manual
13
3.7.2 Air outlet
3.7.2.1 Standard settings for stepless fan
The house controller has a range of standard settings for a range of different fan types.
When you choose to load a standard setting, it is not necessary to carry out further settings for fan.
Select the menu
Technical | Installation | Manual installation | Climate | Ventilation | Air outlet |
Side outlet | Stepless | Load stepless fan settings
.
Select the required fan type.
The setup can be viewed and adjusted in the menu
Technical |
Service | Stepless | Adjust stepless
. See also the section
3.7.2.2 Speed control
3.7.2.2.1 0-10 V speed control
When the fan is controlled by a 0-10 V speed control, voltages must be set corresponding to the fan stopped
and the fan running at full speed. This settings will depend on the type of fan speed controller used.
Select the menu
Technical | Installation | Manual installation | Climate | Ventilation | Air outlet|
Select a type of outlet
| Fan speed control
Stop fan
Voltage at 0 % fan capacity.
Full speed
Voltage at 100 % fan capacity.
Note that the factory setting for both menu items is 5.0 V. The house controller will send an alarm if the settings
are not adjusted.
3.7.2.3 Dynamic MultiStep
See section Setting of Exhaustion (MultiStep) for a general description of MultiStep.
Dynamic MultiStep makes it possible to reduce power consumption for the fans in the MultiStep system. This is
achieved by the fans' ability to run at two speeds (Low and High) and by letting them run as long as possible at
low speed.
When a low level of ventilation is needed ventilation is carried out as an ordinary MultiStep system, but the fan
output is limited so that it can only provide a percentage of the fan's maximum capacity.
All exhaust units that are set up to run only in the low area in the Dynamic MultiStep system must be able to run
at reduced capacity.
When a high degree of ventilation is required, the fan output varies steplessly from low to full speed and the
flaps are fully open.
