SOUNDPROOF SUCTION OR OUTLET PLENUM
DIRECT FREE COOLING PLENUM (UNDER UNITS)
EN
i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
25
The figure shows the soundproof plenum to be installed on the
top of the unit.
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This accessory is installed on the top of the unit, and is used to
take in cool outside air and then deliver it directly into the air-
conditioned environment. The plenum is supplied with 2
motorised dampers (one for the outside air + 1 for the inside
air), managed by the unit’s microprocessor controlled, which
modulate the quantity of air taken in from the outside to ensure
the room temperature set point is maintained.
This accessory is not available on AF units.
WARNING:
For correct installation, an elastic gasket should be fitted between
the plenum and the unit.
A PRESSURE-RELIEF DAMPER (supplied with the “FC CONNEC-
TION KIT”) MUST BE USED, SO THAT THE AIR CAN DE DIS-
CHARGED DURING TOTAL FREE COOLING OPERATION.
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FRONT VIEW
A
A
SECTION A-A
TOP VIEW
Models
12
18
20
29
50
70
90
130
150
L mm
1000
1550
2100
2650
P mm
500
790
890
H mm
350
500
Models
12
18
20
29
50
70
90
130
150
L mm
1000
1550
2100
2650
P mm
500
790
890
H mm
600
840
