Fancom Lumina 35 Installation Manual

Lumina 35 Explanation control functions3Please 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.Ventilation is used to create the most pleasant climate possible in the house. Ventilation also extracts harmfulsubstances 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 andextract air from the house. This is generally done using curtains. The greatest advantage of natural ventilationcompared to mechanical ventilation is energy saving. The disadvantage is the dependency on the outsideconditions (for example, the wind). This means that creating the correct house climate using natural ventilationonly 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 lessdependent on the outside conditions than with natural ventilation. Several more fans are generally used withmechanical ventilation. The fans used with specific ventilation percentages are indicated in the combi-table page7.The control computer supports both natural ventilation and mechanical ventilation. The principle here is to controlthe climate using natural ventilation and to only activate mechanical ventilation if necessary.The ventilation is controlled based on the house temperature. The purpose is to control the temperature as closeas possible to a certain setpoint. Minimum ventilation is always required in the house for the supply of fresh air.If the temperature in the house exceeds the entered setpoint, ventilation must increase. The more the housetemperature differs from the setpoint, the more ventilation increases. The ventilation zone is the temperaturerange within which the ventilation is increased from its minimum to its maximum position.Below is an example of a ventilation graph.Figure 1: Ventilation graphIn the combi-table enter which fans have to activate at the various ventilation percentages. With natural ventilationindicate how far the curtains have to open.The setpoint house temperature and the minimum and maximum ventilation positions can vary during the animals'life cycle. The ventilation graph changes too and therewith the amount of ventilation at a certain temperature.Always complete the combi-table, including the steps covered by natural ventilation.