Hitachi air core 600 Installation & Maintenance Manual page 28

3.2.3 Install the indoor unit.
Ceiling type installation
(1) Select the suspension bolt locations and the pipe
hole location.
i. Use enclosed paper pattern as a reference, and drill
the holes for the suspension bolts and pipe.
NOTE:
Decide the locations based on the direct measurements.
ii. Once the locations are properly placed, the paper
pattern can be removed.
(2) Install the suspension bolts in place.
Ceiling
Pattern board
Fig. 3.2.3
• Place the left hanger bracket on the nuts and
washers of the suspension bolts.
• Make sure that the left hanger bracket is fixed on
the nuts and washers securely, install the right
hanger bracket suspension hook on the nuts and
washers.
(When installing the indoor unit, you can slightly
remove the suspension bolts.)
Fig. 3.2.4
(3) Conduct fixing with 4 suspension bolts, which
can endure load of 530N.
(4) Check the measurements of the length of the
suspension bolts.
(5) Fasten the hanging plate onto the suspension bolts.
(6) Install the unit to the hanging plate.
i. Slide the unit from front side to hang on the
hanging plate with bolts.
ii. Fasten the four fixing bolts (M8:2 each on
the left and right sides) firmly.
iii. Fasten the two screws (M5:1 each on the
left and right sides).
Walls
Ceiling
Hanging plate
Suspension bolt
Installation and Maintenance
Hanging plate
26
Hanging plate
fixing bolts(M8)
Hanging plate
screw (M5)
Fig. 3.2.5