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/04.2016/
G35
EN
4.4 Working modes
Cooling
Air is aspirated by the radial fans, it is filtered and then cooled passing through either the chilled water heat exchan-
ger or the evaporator coil. After treatment, air is delivered through the front-lateral openings. The cooling capacity is
modulated by C7000 in different ways:
• on A units acting on the fan speed, according to supply and return air temperatures;
• on AS and GS units acting on the compressor EC driver and the fan speed, according to supply and return air
temperatures;
• on GES units acting on the compressor EC driver and the fan speed, according to supply and return air tempe-
ratures or by controlling the 2-way valve when free cooling operation is possible;
• on CW units acting on the 2-way valve and the fan speed, according to supply and return air temperatures.
Humidification (option)
According to the signal of humidity inside the room, supplied by the humidity sensor, the C7000 controller switches
on a steam humidifier (available as an option).
4.5 Mechanical components
Structure
These units are made of self-supporting hot-dip galvanized sheet metal parts that offer good corrosion resistance
(suitable only for non-corrosive and non-saline environments). External panels are powder coated with protective
paint. This system is designed for an easy inspection of the unit.
The sides of the unit are internally lined with 10mm thick sound-absorbing material composed of polyurethane foam
on an open-cell polyester base, tested for fire-resistance in accordance with FMVSS 302 motor vehicle safety stan-
dards. Inner components are accessible by opening their front and rear hinged doors.
Air filter
An air filter is installed to filter air from the hot aisle before it enters the heat exchanger, preventing dirty particles
from obstructing the coil. The zigzag filter belongs to efficiency class G4.
Condensate water tray
Made of aluminium, it is placed below the heat exchanger to collect water condensing on its surface during cooling
mode. It is provided with a connector with 16 mm outside diameter for water drain.
S-shaped plate for optimal air distribution
