haier AD142ALEAA - Manual (Page 17)

16
Installation Manual For Indoor Unit
Installation of indoor unit duct
1. Installation of air sending duct
This unit uses rounded duct, the diameter of the duct is 180mm.
The rounded duct needs to add a transition duct to connect with the air-sending duct
of indoor unit, then connect with respective separator. As Fig. 1 shown, all the fan speed
of any of the separator’s air outlet shall be adjusted approximately the same to meet
the requirement for the room air conditioner.
2. Installation of air return duct
Use rivet to connect the air return duct on the air return inlet of the indoor unit, then
connect the other end with the air return blind. As Fig. 2 shown.
Indoor unit
Soft connection
or static box
Transition duct Rounded duct
Unit: mm
3 Thermal insulation of duct
Air-sending duct and air return duct shall be thermally insulated. First stick the gluey
nail on the duct, then attach the heat preservation cotton with a layer of tinfoil paper
and use the gluey nail cap to fix. Finally use the tinfoil adhesive tape to seal the
connected part. As Fig. 3 shown.
Fig. 1
Fig. 2
Fig. 3
Air distributary
Tie-in of air
distributary
Indoor unit
rivet
Air return duct Air return blind
gluey
nail gluey
nail cap
adhesive tape tinfoil
heat preservation
cotton