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Table 5.3
L2
Condition
0<L1<1/2H
L1≤H
1/2H≤L1≤H
Install air duct to exhaust the air out of
L1>H
the space.
Stacking installation
NOTE
Only 2-layer stack installation is allowed.
When this installation method is adopted, the
upper outdoor unit needs to be provided with
centralized drainage.
Stacking installation is prohibited in severe
cold areas.
Only the air inlet side of the outdoor unit has obstacles：
Unit:mm
The area
for drain
treatment
Only the air outlet side of the outdoor unit has obstacles：
Unit:mm
The area
for drain
treatment
A1
A2
200
300
300
450
≥200
Fig. 5.12
≥200
Fig. 5.13
20
When outdoor units are installed in rows on
a rooftop
When one outdoor unit is installed in each row：
Unit:mm
When two or more outdoor units are installed side by
side in each row：
Unit:mm
L2
H
L2
Condition
0<L2<1/2H
L2≤H
1/2H≤L2≤H
Install air duct to exhaust the air out of
L2>H
the space.
The air outlet of outdoor units facing to the air inlet
of the outdoor units in the front is forbidden, when
outdoor units are installed in rows：
Unit:mm
Fig. 5.14
Fig. 5.15
Table 5.4
A
300
450
× Incorrect
× Incorrect
Fig. 5.16
V.1
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