haier AE122BCAAA (H2EM-18H03) - Manual (Page 20)

19
B C
B
A *1m
Installation procedure
Install indoor unit
When install the duct hidden type indoor unit, the return air box must be
designed and installed, as Figure 1, Figure 2.
The distance between the air outlet of duct and the air outlet of air
conditioner should be no more than 1m (when the out unit static pressure is 0Pa).
Building roof of installation
Ceiling
Air supply
Air out duct
Unit
Return air
Return air box
(Figure 1)
(Figure 2)
Unit
Return air
Return air box Air supply
Air ourlet girlle
There should be
no obstacles
M8 wide expansion screw bolt
M8 hoisting screw
M8 wide lock washer
M8 screw nut
A amplified
Unit
(Figure 3)
B Rivet
B amplified
Air supply passage
Air supply passage
Air outlet grille
C amplified
Air supply passage
Use screw to
fix top panel Top panel of unit
(Figure 4)
Low static pressure duct type: max static pressure is 30Pa.