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DIRECT FREE COOLING BASE (OVER UNITS)
This accessory is installed on the BOTTOM 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.
P
SECTION A-A
Models
05
07
L mm
600
P mm
500
H mm
DIRECT FREE COOLING CONNECTION KIT (UNDER/OVER UNITS)
26
EN
10
15
18
20
1000
1000
500
790
500
C
A
B
INSTALLATION EXAMPLE
UNDER
with free cooling plenum
L
FRONT VIEW
TOP VIEW
26
29
39
30
40
1550
790
D
E
D
A.
Outside rain grill
B.
Pressure-relief damper
C.
Flange
D.
Clamp
E.
Hose
F.
Free cooling plenum
OVER
with free cooling base
A
A
50
55
60
70
2100
790
600
F
C
ACCURATE AX - AW - AD - AT - AF
80
90
2650
790
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