KDVRAY500 MANUAL
Pag. 4 of 24
The following air treatments can be carried out:
-
air renewal with high efficiency heat recovery, with possible winter heating or summer
cooling;
-
air renewal with free-cooling, without heat recovery, both in summer and in winter;
-
air recirculation in winter, with possible heating;
-
air recirculation in summer, with cooling and dehumidification;
-
air recirculation with a renewal share, together with all the treatments provided for
recirculation.
The air flow rates can assume the following values:
-
ambient flow rate settable from 300 mc/h up to 500 mc/h;
-
fresh air, flow rate settable from 160 up to 300 mc/h.
-
free-cooling, renewal flow rate settable from 160 to 300 mc/h.
Please note: the ambient flow rate is equal to the sum of renewal flow plus recirculation flow.
OPERATION OF COOLING CIRCUIT
COOLING
The finned coil (3), which is connected to the radiant system, enables summer cooling and
winter heating.
The temperature control over the outgoing air is carried out by the machine by means of the
mixing valve in the water circuit.
1
Cooling evaporator;
2
Cooling compressor;
3
Water finned coil;
4
Excess heat discharge condenser;
5
Freon/air condenser;
6
Air exhaust fan;
7
Air supply fan;
PCB Printed Circuit Board;
E1-2 Electronic expansion valve.
OUTGOING
AIR
INCOMING
AIR
