Lumina 17
Explanation control functions
3
2.
Explanation control functions
Please refer to the user's manual for an explanation of the basic principles of climate management.
This chapter describes the working of a number of specific control functions that the installer should set.
2.1
Ventilation
Ventilation is used to create the most pleasant climate possible in the house. Ventilation also extracts harmful
substances from the house and introduces fresh air into the house. There are two types of house ventilation.
Natural ventilation uses the pressure differences inside and outside the house to suck air into the house and extract
air from the house. This is generally done using curtains. The greatest advantage of natural ventilation compared to
mechanical ventilation is energy saving. The disadvantage is the dependency on the outside conditions (for
example, the wind). This means that creating the correct house climate using natural ventilation only is not always
possible. In such cases mechanical ventilation is used.
With mechanical ventilation, fans introduce air into the house and extract air. This means that you are less
dependent on the outside conditions than with natural ventilation. Several more fans are generally used with
mechanical ventilation. The fans used with specific ventilation percentages are indicated in the combi-table page 4.
The control computer supports both natural ventilation and mechanical ventilation. The principle here is to control
the climate using natural ventilation and to only activate mechanical ventilation if necessary.
2.1.1
Controllable fans
Controllable fans can be controlled by the control computer at a certain percentage. The control computer controls
the fans from, for example, 30% to 100%. This enables the control computer to increase ventilation precisely up to
the required level.
Figure 1: Example of a controllable fan controlled by the control computer
Controllable fans can be controlled by the control computer via the I/O-net or via an analog output (0–10V).
As well as the standard controllable fans, up to maximum three extra controllable fans can be controlled. The extra
controllable fans can be controlled directly (via an analog output or the I/O-net, value ‘A’ in the combi-table) or via a
relay (value ‘R’ in the combi-table).
All controllable fans are always controlled at the same percentage.
Figure 2: Example of a controllable fan with one extra controllable fan. Directly controlled by the (A) or by the relay
(R)
