Hitachi R32/R410A-Serie Installations- Und Betriebshandbuch Seite 35

INDOOR UNITS INSTALLATION
!
C A U T I O N
• Do not install the indoor units in a flammable environment to avoid a
fire or an explosion.
• Check to ensure that the ceiling slab is strong enough. If not strong
enough, the indoor unit may fall down on you.
• Do not install the indoor units in a machinery shop or kitchen where
vapor from oil or mist flows to the indoor units. The oil will deposit on
the heat exchanger, thereby reducing the indoor unit performance,
and may deform. In the worst case, the oil damages the plastic parts
of the indoor unit.
• To avoid any corrosive action to the heat exchangers, do not install
the indoor units in an acid or alkaline environment.
• When lifting or moving the indoor unit, use appropriate slings to avoid
damage and be careful not to damage the insulation material on units
surface.
4.3.1 Suspended unit
Install the indoor unit with a proper clearance around it paying
careful attention of installation direction for the piping, wiring and
maintenance working space.
Mount suspension bolts using M10 (W3/8) or greater are also
recommended, as size, as shown below:
DIMENSIONS TO INSTALL SUSPENSION BOLT (mm)
Models
RPIH-(4.0~6.0)FSRE
For concrete slab:
150 to 160mm
Steel
For steel beam:
I-Beam
5 PMML0529 rev.1 - 02/2021
a b
1514 544
Insert
(100 to 150kg)
Concrete
Anchor bolt
(W3/8 or M10)
Suspension bolt
(W3/8 or M10)

Nut pre-assembly prior to leveling unit
Nut (field-supplied)
Washer with insulation (accessory)
Suspension bracket
(attached indoor unit)
Washer (accessory)
Nut (field-supplied)
Sling bolt (field-supplied)
Surface of ceiling

Suspend the indoor unit using the following steps
1 Hook suspension bracket to the nut and washer of each
sling bolt, as shown, starting from one side.
2 Check the nut and washer are correctly fixes by the retainers
of the suspension bracket.
3 Hook the suspension bracket of the other side to nut and
washer.
Nut
Washer with insulation
Suspension bracket
Washer
Nut
Sling bolt
?
N O T E
Make sure to use washers (accessories) for fixing the suspension bolts to
the suspension brackets. The washer with insulation must be fitted with
the insulation side downward to facilitate hanging work.
Inlet air