Sabiana ENY-SP-180, Technical Manual

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Energy Smart |
CENTRALISED CONTROL
Generally, Energy Smart units operate at a constant flow rate, which can be set at a percentage of the nominal value configured
during installation.
A variable flow mode (AUTO) is also available, according to a control based on the ambient air quality index reading (humidity or
CO
2
). This way, it is the minimum unit flow rate to be required to obtain the necessary air quality, thus improving internal comfort
and energy consumption.
The central air quality sensors can be placed directly in the room or in the air extraction ducts.
Since in any case the unit electronics are designed to control only one central sensor, the control strategy is called “Centralised
Control”.
Two types of measurements can be selected when using the central sensor:
• Internal relative humidity, i.e. a measurement of indoor air salubrity compared to the risk of mould proliferation. All units are
equipped with a humidity sensor located in the extracted air duct (for standard units, the humidity sensor is available as an
accessory).
• Concentration of carbon dioxide, i.e. a measurement of the level of internal occupation. The CO
2
sensor, not supplied, is a
0-10V type commonly available on the market, to be installed directly inside the occupied room.
Regardless of the type selected, the AUTO mode is only available if the sensor is physically connected to the main control board.
If the CO 2 sensor and the humidity sensor are simultaneously connected to the main electronic board, the AUTO mode will refer
to the measurements from the CO2 sensor.