CERA units are pressure-independent fresh outside air volume control units (ventilation units) suitable for stacked housing. The units have been designed particularly for systems with low noise criteria and for the accurate measurement and control of air volumes courtesy of the patented air ﬂow sensor type Flo-Cross®.
The CERA unit controls the amount of fresh air supplied to the room based on the measured CO2 level and features override options using switches, all of which save energy. The CERA unit controls the amount of fresh air supplied to the room based on the measured CO2 levels between a factory calibrated minimum and maximum set-point. It will provide increased air volumes when the ‘cooking’ function or ‘bathroom’ function is activated. When the ‘night’ function is active it will provide reduced but sufficient fresh air for the occupants. This way the CERA is a very energy conscious system, which will contribute to your green building certification.
The units take up very little space and are suitable for use in new or refurbishment projects (renovations/transformation). The units are maintenance free and do not contain filters or a fan.
CERA stands for Central Energy Recovery Air flow and is a total ventilation concept designed for use in stacked housing. The primary system includes a central heat recovery in the central AHU unit and is maintaining duct static pressures at a minimum. Air balance is carried out by measuring the supply air to the apartments and by controlling the return air accordingly.
The energy consumption required for ventilation and ventilation transmission is reduced by 30-50% compared to conventional systems. The result is a very energy conscious system. Optionally the system can be upgraded by providing some cooling capacity through the ventilation air. The unit is compact in size and can be used in new developments, renovations or transition projects.
The system consists of a ventilation air control unit called the CERA unit, which is installed in each apartment. By measuring the air quality - i.e. the CO2 levels in the room(s) - the amount of fresh air supplied into each room is kept to a minimum.
Under normal conditions the air volume is controlled between a minimum and maximum flow based on local regulations. By adding a switch in the kitchen (during cooking periods) and a switch in the bed/bathroom (during showering) the supplied air volumes will be increased to a higher factory calibrated set-point. During night time the system can be put in night-mode and providing sufficient fresh air into the bedroom.