Hitachi RPI FSN4E Serie Manual De Instalación Y Funcionamiento página 11

INDOOR UNITS INSTALLATION
Service space
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RPI
Top view
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RPIM
Mounting of sling bolts and hanging the Indoor Unit
Using the dimension shown above select the final location and
installation direction of the Indoor Unit paying careful attention to
the space for the piping, wiring and maintenance.
Install the sling bolts, M10 or greater are also recommended,
and 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 After check the nut and washer are correctly fixes by the
retainers of the suspension bracket, hook the suspension
bracket of the other side to nut and washer.
Suspension
Left side
bracket
Inlet air
Right side
(service cover)
5 PMML0246A rev.4 - 05/2016
(mm)
(mm)
Ceiling hole
Nut
Washer
Sling bolt
Washer
Nut
Drain Pan Level
Check to ensure that the foundation is flat, taking into account
the maximum foundation gradient.
Condensate drain connection
The unit should be installed so that the rear side of the unit is
slightly (approximately 5mm) lower than the front side, in order
to avoid the incorrect position of the drain discharge.
Tighten the nuts of the suspension bolts with the suspension
brackets after adjustment is completed.
Special plastic paint must be applied to the bolts and nuts in
order to prevent them from loosening.
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N O T E
Keep the unit as well as relevant equipment covered with the vinyl cover
during installation work.
3.1.3 Duct & suction air filter installation
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Field Supply Duct installation
Fix the Flexible Air Duct to External Faces of unit flanges (the
unit is equipped with factory supply flanges for this purpose).
It is recommended to use a Flexible field supply Duct portion in
order to avoid any abnormal sound vibration.
Insulate frame corners by using properly tape. Field supplied.
RPI(M)-units are equiped with standard Air Filter at the suction
side. This filter is provided for the cases in which no Suction
Duct is applied (or it is very short).
It is recommended the following indications depending on the
installation.
• Keep the standard Air Filter in case of no Suction Duct is
applied (fig.1)
• In case of applying Suction Duct, it is recommended to apply
Air Filter at the inlet point of Suction Duct, removing the
standard Air Filter of the unit (fig. 2)
Fig. 1
Air flow
Fig. 2
Air flow
Front view
Std. Air filter
(Factory supplied)
Air flow
Air filter (Factory supplied or
adapted factory one)
Air flow