10
THERMAL-HYGROMETRIC OPERATION
INFLOW
AIR
EJECTI
ON AIR
2 - Cooling compressor;
3 - Water-supplied finned coil;
4 - Cooling evaporator;
5 - Freon/air condenser;
6 - Freon/water plate condenser;
7 - Delivery fan;
PCB - Electronic control card;
E - Electronic expansion valve.
COOLING
The finned coil (3), connected to the radiant hydraulic system, provides summer cooling or
winter heating; the output temperature can be set from the unit by adding an external mixing
valve (supplied as accessory) or by adjusting the radiant system that controls the temperature
of the delivery water.
DEHUMIDIFICATION AND COOLING
The water-supplied coil (3) fed by the radiant system pre-cools the air; the cooling evaporator
(4) provides air cooling and, in turn, dehumidification. The cooling circuit includes two
condensers with parallel connection: in addition to the air-cooled condenser (5), a second
plate condenser (6) disposes the water condensation heat.
The two electronic expansion valves enable to distribute the condensation heat between air
and water as desired; this provides the inflow air at the desired temperature between max
cold and neutrality.
The temperature values available for the delivery air are:
-
Summer neutral temperature;
-
Summer integration temperature;
-
Winter neutral temperature;
-
Winter integration temperature.
NOTE: The cooling circuit cannot be activated in winter and for the exchange-only function.
