Specifications

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74
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(2) 4-way ceiling cassette type (STM)
(a) Caution for installation
Install at location that meets the following conditons after getting approval from the customer.
1) Where cool air or hot air can easily pass through.
If the height of the location exceeds 3 m, hot air will gather in the ceiling. Suggest to the customer to also install a
circulator.
2) Where there are no wind disturbances to the suction inlet and blowing outlet, where the fire alarm will not be set off
erroneously, where no short circuits occur.
3) Where there is no obstructions to the air flow and where the cooled air can be evenly distributed.
4) A solid place where the unit or the wall will not vibrate.
5) A place where there will be enough space for servicing.
(Where space mentioned below can be secured)
6) Where wiring and the piping work will be easy to conduct.
7) The place where receiving part is not exposed to the direct rays of the sun or the strong rays of the street illumination.
8) When a sufficient interval cannot be secured between the unit and a wall or another unit, shut up diffusers on that side to
block winds and make sure that no short-circuiting is occurring.
(A wind blocking material is available as an optional part)
sDo not use the unit in the "Lo" wind mode, when winds are blown into two or three directions.
5) Fixing of indoor unit
¡ How to remove the indoor unit from the installation board
1 Push up at the marked portion of the indoor unit base
lower latch, and slightly pull it toward you.
(both right and left hand sides)
(The indoor unit base lower latch can be removed from
the installation board)
2 Push up the indoor unit upward. So the indoor unit will
be removed from the installation board.
Installation Steps
1 Pass the pipe through the hole
in the wall, and hook the up-
per part of the indoor unit to
the installation board.
2 Gently push the lower part to
secure the unit.
The marked portion of the
Indoor unit bese lower latch
Lid