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Installation procedure
Installation of indoor unit
l When installing the cassette hind type indoor unit, a specially designed return air bellows
shall be installed, as shown in Figure 3, Figure 4.
l The distance between the air duct outlet and the air conditioner air outlet shall not exceed
0.5 m.
22
A
*0.5m
Installing building roof
Ceiling
Air supply
Air outlet duct
Unit
Return air
Return air bellows
Figure 3
Detail A
Figure 5
M8 broad foundation bolt
M8 suspension screw
M8 broad lock ring
M8 nut
Unit
Air outlet grille
Air supply
No obstacles
within 1 m
Unit
Return air
Return air bellows
Figure 4
B
A
B
B Rivet
Air supply duct
Detail B
Detail A
to mount the top
plate with screw
Unit top plate
Air outlet grille
Air supply ductAir supply duct
Figure 6