Haier AD142AMAAA Instruction Manual page 32

INSTALLATION MANUAL FOR INDOOR UNIT
(7) Installation work for air outlet ducts
Air conditioner main unit
Heat insulation
Ceiling surface
A Blowout duct
B Special blowout
(Optional or marketed item)
(Option)
AD182ACAAA
AU182AFACA
(HDU-18H03)
Calculate the draft and external static pressure and select the length, shape and blowout.
Blowout duct
A
2-spot, 3-spot and 4-spot with
number of spots based on following table.
Note (1) Shield the central blowout hole for 2-spot.
(2) Shield the blowout hole around the center for 3-spot.
Limit the difference in length between spots at less than 2:1.
Reduce the length of duct as much as possible.
Reduce the number of bends as much as possible. (Corner R should be as larger as possible.)
Use a band. etc. to connect the main unit and the blowout duct flange.
Conduct the duct installation work before finishing the ceiling.
(8) Connection of suction, exhaust ducts
(a) Duct connection position
i) Fresh air inlet
Inlet can be selected from the side or rear faces depending on the working conditions.
Use the rear fresh air inlet when the simultaneous intake and exhaust is conducted. (Side inlet
cannot be used.)
ii) Exhaust (Make sure to use also the suction.)
Use the side exhaust port.
Suction panel
Ceiling surface
(Silent panel)
B Special blowout
(Option)
AD182AMAAA
AU182ARAAA
(HDU-18H03/M)
AD182AMBAA
AU182ARBAA
(HDU-18HA03/M(R1))
200 type duct are the standard specifications. Determine the
Bad example
Fig.1
31
Air conditioner main unit
Heat inlet duct
insulation
(optional or
marketat item)
A Blowout duct
(Optional or marketed item)
Hole for check
AD142AMAAA
AU142ARAAA
(HDU-14H03/M)
AD142AMBAA
AU142ARBAA
(HDU-14HA03/M(R1))
Bad example
State seeing from top of unit
Side fresh air inlet
Rear fresh air inlet
Fig.2
Suction panel
(Silent panel)
C
special inlet (option)
(with air filter)
AD182AMNAA
AU182ARNAA
(HDU-18CA03/M(R1))
AD142AMNAA
AU142ARNAA
(HDU-14CA03/M(R1))
Good example
Exhaust hole