Hitachi RCI-1.0FSN4 Service Manual page 43

2 Unit installation
RCIM - 4-way cassette (compact)
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Installation
Cut the area of the unit in the false ceiling and reinforce the opening made.
Install the M10 (3/8") suspension bolts depending on the type of surface:
Dimension of opening:
580 (576~590)
Unit size: 570
Dimension of
suspension bolts: 530
Piping connection
side
Steel beams
Steel beam
1 Suspension bolts (field-supplied)
2 Nut (field-supplied)
3 Washer with insulation accessory
4 Suspension bracket (attached indoor unit)
5 Washer (accessory)
6 Nut (field-supplied)
7 Ceiling
Thread on the nuts and fit the washers for all the bolts, as shown in the figure.
Fit two suspension brackets onto the nut and washer of each bolt, starting on one side.
Check that the nuts and washers are correctly secured with the suspension bracket retainers and fit the brackets onto
their nuts and washers on the other side.
Fit the washers with the insulation facing downwards, as shown in the figure. Bear in mind the position of the side for
pipe connection before lifting the indoor unit.
Where a false ceiling is already installed, install and prepare the pipes and cables on the indoor unit before lifting it.
!
C A U T I O N
• Before lifting the unit, prepare any necessary means (ladders, scaffolding, elevator platform, etc.) and check that the current safety
regulations in the place where the installation is taking place are met.
• Check that the lifting work can be carried out without the risk of injuries to you or others in the surrounding area.
• Request the assistance of another person to lift the unit.
29 SMGB0099 rev.0 - 12/2016
4-positions of
suspension bolts
Optional panel
Drain piping
connection side
Anchor bolt
(W3/8 or M10)
Concrete beams
1 150 to 160 mm
2 Steel
3 Anchor bolt (W3/8 or M10)
4 Concrete
5 Insert (100 to 150 kg)
5
1
2
3
Wooden beams
Wooden bar
(60 mm to 90 mm
Wooden beam
Approx 50 mm
Approx 45 mm
2
4
square)