Xvi.2. Fans Pressure Switches Deps And Depr; Xvi.2.A. Setting The Tare; Xvi.2.B. Electrical Connection; Xvi.2.C. Pneumatic Connection - Caladair EVERSKY 500 Installation And Commissioning Manual

XVI.2. Fans pressure switches DEPS and DEPR
The operation of the supply and exhaust fans is continuously monitored by two air
pressure switches which inform the controller whether or not there is sufficient air
pressure.
XVI.2.a.
The nominal setting of fan pressure switches is 25Pa. There is no need to change
the factory setting. This setting must be respected when the component can be
replaced if necessary, which can be delivered on another setting value.
The adjustment is simply done using a flat footprint screwdriver by turning the
central element (1) so that the arrow (2) coincides with the set value.

XVI.2.b. Electrical connection

Pressure switches are of type NO (Normally Open). The contact closes when the differential pressure generated by the air flow
exceeds the adjustment value of the pressure switch (25 Pa at the factory outlet).
Pressure switches shall be connected between terminals (1) and (3) in accordance with the electrical wiring diagram.
XVI.2.c.
If the component is replaced or removed, the pneumatic connection must be respected during re-installation as described in the
table below.
The operation of the supply air and extract air fans are controlled by air pressure switches that inform the controller of the unit of
the proper functioning of the fans.
These pressure switches are of type NO (normally open). At rest, contact is open. It closes when the differential pressure exceeds
the setting value (25 Pa out of the factory).
In case of replacement, respect the setting, the position of the electrical connections and the transparent pressure taking tubes.
MS-CDF-019 – Manufacturing Nr: 220001→
Setting the tare
Pneumatic connection
EVERSKY
Version B Update: 2022/06/14
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