Unit Installation - Hitachi RPI-8.0FSN3E Installations- Und Betriebshandbuch

UNITS INSTALLATION

3.1 UNIT INSTALLATION

3.1.1 Factory-Supplied Accessories
Accessory
Pipe adapter
(Ø19.05x Ø25.4)
(Only for 8 HP)
Pipe adapter
(Ø22.2x Ø25.4)
(Only for 10 HP)
Pipe adapter
(Ø9.52x Ø12.7)
(Only for 10 HP)
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Initial check
Install the indoor unit with a proper clearance around it paying
careful attention of installation direction for the piping, wiring and
maintenance working space, as shown below.
(mm)
3.1.2 Installation
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Unit's hanging
Install the sling bolts, 4-M10 or greater are recommended, and
suspend the indoor unit using the following steps:
1 Hook the suspension bracket to the nut and washer of each
sling bolt, as shown, starting from one side.
2 After checking that the nut and washer has been correctly
fixed by the retainers of the suspension bracket, hook the
top side of the suspension bracket by using another nut and
washer as shown below.
Sling Bolt
4 PMML0229A rev.3 - 05/2016
Quantity Purpose
1
Indoor unit
Refrigerant pipe
1
Reducer coupling
(Used only with
UTOPIA IVX
system)
1
Nut
Washer
Suspension
Bracket
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Drain Pan Level
- Check to ensure that the foundation is flat, taking into
account the maximum foundation gradient.
Front View
The unit should be installed so that the Drain Pan side of
-
the unit is slightly (approximately 5 mm) lower than the
opposite 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.
- Fasten the tubing to the drain hose with an adhesive and
the factory-supplied clamp. The drain piping must be
performed with a down-slope pitch of 1/25 to 1/100.
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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 Connecting field supply duct and suction
air filter servicing
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Field Supply Duct installation
Fig.1
Outlet Air
Fig.2
Outlet Air
Flexible Duct Installation
(Rubber or Textil Material)
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.
RPI-units are supplied 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).
Inlet Air
Air Filter (Factory supplied)
Inlet Air
Damper (Field supplied)
Insulated Duct (Installed on
the outer side of the flanges)
Air Filter (Factory-supplied or
adapted factory one)