2
1
K
3
W
3
Fig. 13: Installation inside buildings
K: Cold fresh air / W: Warm air
1: Outdoor unit / 2: Additional fan
3: Air shaft
5.5 Minimum clearances
Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air
distribution.
2
1
e
c
a
b
f
A
B
2
1
a
b
c
d
e
Fig. 14: Minimum clearances of the indoor unit and outdoor unit
A: Indoor unit
B: Outdoor unit
1: Air inlet
2: Air outlet
Indoor units
Outdoor units
Measure-
ments (mm)
BL 264-354 DC IT
BL 264-354 DC AT
a
120
300
b
1500
2000
c
120
600
d
-
300
e
120
600
f
200
-
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