Units Installation; Initial Check; Installation Space - Hitachi CENTRIFUGAL VRF RASC-HNPE Serie Manual De Instrucciones

UNITS INSTaLLaTIoN

7 UNITS INSTALLATION

7.1 INITIAL CHECK

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C A U T I O N
• Install the RASC unit in a restricted area not accessible by the general
public.
• Do not install the unit outdoors (Water proof class: IPX0).Only indoor
installation is allowed, and air for both suction and discharge must
come from outside the building.
• Ensure that the installation area has a proper ventilation so that
ambient temperature around the unit does never exceed 46ºC.
• Install the RASC unit with sufficient clearance around it for operation
and maintenance.
• Do not install the RASC unit where is a high level of oil mist, salty air
or sulphurous atmosphere.
• Install the RASC unit as far as practical (being at least 3 meters) from
electromagnetic wave radiator (such as medical equipment).
• Install the RASC unit where good ventilation is available, for working
in an enclosed space may cause oxygen deficiency. Toxic gas may
be produced when cleaning agent is heated to high temperature by,
e.g., being exposed to fire.
• Cleaning liquid shall be collected after cleaning.

7.2 INSTALLATION SPACE

Units in mm.
RASC-(4-10)HNPE
7.3 INSTALLATION PLACE PROVISION
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Floor mounted
1 Foundation could be on flat and is recommended be
100-300mm higher than floor level.
2 Install a drainage around foundation for smooth drain.
3 When installing the unit fix it by anchor bolts of M10.
4 Use vibration-proof rubber (approx. 60 degree) between the
unit and foundation.
5 Drain water sometimes turns to ice. Therefore, avoid
draining in an area that people often use because it is
slippery.
7 PMML0399B rev.0 - 11/2015
• For cleaning, use noninflammable and nontoxic cleaning liquid. Use
of inflammable agent may cause explosion or fire.
• Pay attention not to clamp cables when attaching the service cover to
avoid electric shock or fire.
• Keep clearance between the units of more than 50mm, and avoid
obstacles that may hamper air intake, when installing more than one
units together.
• Install the RASC unit in the shade or not exposed to direct sunshine
or direct radiation from high temperature heat source.
• Do not install the RASC unit in a space where a seasonal wind
directly blows to the RASC unit.
• Check to ensure that the foundation is flat, level and sufficiently
strong.
• Aluminium fins have very sharp edges. Pay attention to the fins to
avoid injury.
• Keep clearance between the wall (without vent holes) and air inlet/
outlet part more than 3 meters in order to avoid short circuit.
• Do not put any material on the products.
• Do not put any strange material (sticks, etc...) into the air inlet and
outlet. These units have high speed rotating fans and it is dangerous
that any object touches them.
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N O T E
(*): Recommended servicing space for fan unit in those cases where
it is not possible to access from the unit's side. In these cases, a
"removable servicing duct" or a "removable grille" (in case of installing
the unit next to a wall) shall be installed to allow replacement of the
fan unit whenever necessary (which should be made from the unit's
front side).
6 Check to ensure that water-proofing measure shall be taken
to the foundation.
7 Install the unit making sure that the drain outlet part is lower
(>25mm / <30mm) than the opposite side in order to avoid
incorrect drain discharge.