Mitsubishi Electric CITY MULTI PUHY-HP-TNU-A Série Manuel D'installation page 18

(3) Combination of face-to-face and side-by-side installations
When there are walls in the front and rear of the block of units
Ⓐ
h2'
Unit height
Required minimum distance [mm (in)]
L2 (Rear)
450 (17-3/4) + h2
When there are two walls in an L-shape
h3
Unit height
L3
Required minimum distance [mm (in)]
L2 (Rear)
450 (17-3/4) + h2
Ⓐ
Leave open in two directions.
L2
L4
Ⓐ
L2'
L2' (Rear) L4 (Between)
450 (17-3/4) + h2' 900 (35-7/16)
Ⓐ
L3 (Right/Left) L4 (Between)
1000 (39-3/8) + h3 900 (35-7/16)
h2
Unit height
h2
Unit height
L2
Ⓐ
L4