Johnson JR8 Serie Guide D'utilisation page 105

Table 5.3
L2
Condition
0<L1<1/2H
L1≤H
1/2H≤L1≤H
Make the installation space meet "L1 ≤
L1>H
H", or install air duct to exhaust the air
out of 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
26
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
Table 5.4
L2
Condition
0<L2<1/2H
L2≤H
1/2H≤L2≤H
Make the installation space meet "L2 ≤
L2>H H", or install air duct to exhaust the air
out of 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. 5.16
Fig. 5.14
Fig. 5.15
A
300
450
× Incorrect
× Incorrect
V.1