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A
C
D
E
F
G
14
A
B
H
I
J
B
4. Installing the indoor unit
E
4.4. Unit Suspension Procedures
G Suspend the main unit as shown in the diagram.
Parts to be prepared at site.
•
Suspension bolts (M10 or W3/8) ..................................................... 4
•
Nuts (M10 or W3/8) ....................................................................... 12
Parts to be attached to the unit.
•
Washers (with insulation) ................................................................. 4
•
Washers (without insulation) ............................................................ 4
A Suspension bolt
B Ceiling panel
C Nut
D Washer (with insulation)
Cushion must be attached so that it faces down.
E Mounting plate
F Washer (without insulation)
G Nut (double)
H Install at first and then tighten it.
I Min. 30 mm
J Check using the installation gauge.
4.4. Unit Suspension Procedures
Figures given in parentheses represent the dimensions in case of install-
ing optional high efficiency filter element (filter casement).
1. In advance, set the parts onto the suspension bolts in the order of the
washers (with insulation), washers (without insulation) and nuts (dou-
ble).
*
Fit the washer with cushion so that the insulation faces downward.
*
In case of using upper washers to suspend the main unit, the lower
washers (with insulation) and nuts (double) are to be set later.
2. Lift the unit to the proper height of the suspension bolts to insert the
mounting plate between washers and then fasten it securely.
3. When the main unit can not be aligned against the mounting hole on
the ceiling, it is adjustable owing to a slot provided on the mounting
plate.
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