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Installation
Duct
Spacing requirements
Construction Standard for Inspection opening
ceiling.
a. Height is more than 1.64ft (0.5m): Only "B" [Inspection for PBA] is applied.
"A"=W+3.94 inch (100 mm)
• You must have 0.79 inch (20 mm) or more space between the ceiling and the bottom of indoor unit to prevent transmission of noise and
vibration from the unit into the space.
• It is possible to install the unit at an height of between 7.2~8.2 ft (2.2~2.5m )from the ground,if the unit has a duct with a well defined
leng [11.81inch (300 mm) or more], to avoid fan motor blower contact.
• If you install the cassette or duct type indoor unit on the ceiling with humidity over 80%, you must apply extra 0.39 inch (10mm) of
polyethylene foam or other insulation with similar material on the body of the indoor unit.
Optional: Insulating the body of the
indoor unit
Thickness: more than 0.39 inch ( 10mm )
AC009BNLDCH
AC012BNLDCH
Indoor
Unit
35.43X17.32X7.83
(900X440X199)
A
B
C
D
Insulate the front and back side in proper size at
Front/
the same time when insulating the suction duct
Back
and discharge duct.
Unit Width(W)
"B"=19.69 inch (500 mm)
Back
Unit: inch(mm)
AC018BNLDCH
43.31X17.32X7.83
(1100X440X199)
35.43X7.83
43.31X7.83
(900X199)
(1100X199)
35.43X7.83
43.31X7.83
(900X199)
(1100X199)
17.32X7.83
17.32X7.83
(440X199)
(440X199)
17.32X7.83
17.32X7.83
(440X199)
(440X199)
NOTE
• Insulate the end of the pipe and some curved area by using
separate insulator.
• Insulate the discharge and suction part at the same time
when you insulate connection duct.
0.79 inch (20 mm) or more
0.79 inch (20 mm) or more
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