Haier 10573573 Operation And Installation Manual page 16

Installation Procedure
When installing the ceiling concealed type indoor unit, a specially designed return air
bellows shall be installed, as shown in Figure 3, Figure 4.
Figure 3
Ceiling
Figure 4
Air outlet grille
Air supply
No obstacles
within 1 m(0Pa)
Each air return and supply duct should fix to the floor precast slab by using an iron stand. Use glue to
seal the interface closely. Recommend the distance between the air return duct and the wall is more than
150mm.
The distance between air duct outlet and air conditioner outlet is according to the length of actually installed
air duct and in service behavior of the static pressure terminal: Installation sketch map for long and short
air duct is showed below, when connect to short air duct, using low static terminal (terminal color is white),
the distance between air duct outlet and air conditioner outlet is no more than 0.5m; when connect to long
air duct, using middle static terminal (terminal color is red), the distance between air duct outlet and air
conditioner outlet could be within 5m at this point.
Figure 5
Drain piping of condensed water should keep a downhill grade of 1% or more. Use insulating pipe to cover
the drain piping of condensed water to keep warmth.
As figure shown, suspend and install the unit.
M8 broad foundation bolt
Figure 6
M8 suspension screw
M8 broad lock ring
Installing building roof
*0.5m(0Pa)or*5m(50Pa)
Unit
Air outlet duct
Air supply
Unit
Return air
sling dog
drain piping
air return duct
transition
air outlet
air return shutter duct
air duct
M8 nut
Figure 6
14
A
Return air bellows
Return air
Return air bellows
joint of air diffuser
air diffuser
Unit