DOL 834 CE
34
Technical User Guide
9.6 Climate
9.6.1 Central air intake
Central air intake can be used alone or in conjunction with central exhaust.
Central air intake is installed by selecting up to two air inlets and up to four temperature sensors that are posi-
tioned in relation to the air inlets of the sections. The sensors provide an input for regulating the air intake and
heating of the air mixing room.
9.6.2 Central exhaust
9.6.2.1 Air outlet
9.6.2.1.1 Speed control
9.6.2.1.1.1 Internal fan speed controller
With an internal fan speed controller, it is necessary to enter the typical voltage of the mains supply to obtain the
correct control of the fan. Measure the voltage by means of a voltmeter or possibly contact an electrician.
Select the menu
Technical | Installation | Manual installation | Climate| Ventilation | Air outlet|
Select a type of outlet
| Fan speed control
Power supply
Enter the typical mains supply voltage to obtain correct control of the fan.
9.6.2.1.1.2 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.
9.6.2.1.2 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.
Summary of Contents for DOL 834 CE
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