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• Connect canvas duct between unit and duct. [Fig. 7-1] (P.5)
• Use incombustible material for duct parts.
• Provide full insulation to inlet duct flange and outlet duct to prevent condensation.
• Be sure to change the position of air filter to a position where it can be serviced.
<A> In case of rear inlet
<B> In case of bottom inlet
A Duct
B Air inlet
C Access door
D Canvas duct
E Ceiling surface
F Air outlet
G Leave distance enough to prevent short cycle
• Procedure for changing the rear inlet to the bottom inlet. [Fig. 7-2] (P.5)
A Filter
B Bottom plate
1. Remove air filter. (First remove filter lock screw.)
2. Remove the bottom plate.
3. Fit the bottom plate to the rear of the body. [Fig. 7-3] (P.5)
(Position of lug-holes on the plate are different from those for rear inlet.)
4. Fit filter to the underside of the body.
(Be careful of which side of the filter to fit.) [Fig. 7-4] (P.5)
C Nail for the bottom inlet
D Nail for the rear inlet
Caution:
• Inlet duct of 850 mm or more should be construted.
To connect the air conditioner main body and the duct for potential equali-
zation.
• To reduce the risk of injury from metal sheet edges, wear protective gloves.
• To connect the air conditioner main body and the duct for potential equali-
zation.
• The noise from the intake will increase dramatically if intake is fitted di-
rectly beneath the main body. Intake should therefore be installed as far
away from the main body as possible.
Particular care is required when using it with bottom inlet specifications.
• Install sufficient thermal insulation to prevent condensation forming on
outlet duct flanges and outlet ducts.
• Keep the distance between the inlet grille and the fan over 850 mm.
If it is less than 850 mm, install a safety guard not to touch the fan.
• To avoid electrical noise interference, do not run transmission lines at the
bottom of the unit.
7. Duct work
When the plate is attached on
the rear side, it exceeds the
height of the rear body panel.
Replicate the plate along the slit
when there is not enough room
above for the entire unit.
01_KB79U749H01_GB.p65 2011.10.26, 4:49 PM17