WC66000496
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47
11.6 CONNECTION FOR INTRODUCTION OF FRESH AIR INTO ROOM
The units are equipped with 2 rectangular arrangements for
connection to ducts for the introduction of fresh air directly into
the room.
Ū • These arrangements are located on the sides not occupied
by the electrical box and water connections.
Ū The PAR accessory is available, consisting of a duct and a
plenum: fresh air is introduced into the installation room by-
passing the heat exchanger by means of a supply fin of the
unit.
Ū The dimensions of diameter D are:
Model
D
ACQVARIA 10-20
150
ACQVARIA 40-50-60
180
Ū It is necessary to filter the fresh air before introducing it in
the unit, making sure that its temperature is not too low.
» Intake air
Below is the correlation between the flow of primary air intro-
duced and the pressure drop of the PAR accessory.
» Intake bypass air
AQ10-20
AQ40-50-60
Air flow rate [m
3
/h]
Water pressure drop [Pa]
Air flow rate [m
3
/h]
Water pressure drop [Pa]
50
8
100
8
100
11
200
11
160
22
320
22
200
32
400
32
220
39
440
39
