Initial Check; Installation - Hitachi RPIZ-0.8HNATNQ Operation Installation Maintenance Manual

4.2 Initial Check

● Install the indoor unit in a space for easy operation
and maintenance as shown in Fig. 4.1.
Models 0.8~2.5
Back
140
100
Front
600 Min.
Top View
Fig. 4.1 Space around Indoor Unit
● The indoor unit must be installed at an appropriate
location so that the indoor temperature can be evenly
distributed.
● There should be no obstruction of air flow at the vent.
●
Do not install the indoor unit in a machinery shop or
kitchen where vapor from oil or its mist flows to the
indoor unit.
Once the oil deposits on the heat exchanger, it may
impair the performance of indoor unit and cause
damage to plastic parts therein.
● Pay attention to the following points when the indoor
unit is installed in a hospital or other facilities where
there are electronic waves from medical equipment, etc.
(A) Do not install the indoor unit where the
electromagnetic wave is directly radiated to the
electrical box, remote control cable or remote
control.
(B) Install the indoor unit and components as far as
practical or at least 3 meters from the electromagnetic
wave radiator.
(C) Install the remote control switch in an iron box.
Arrange the remote control cable in an iron
tube. Ground the iron box and iron tube.
(D) Install a noise filter when the power supply emits
harmful noises.
● To avoid any corrosive action to the heat exchangers,
do not install the indoor unit in an acid or alkaline
environment.
Electric Box
Service Access (≥450)
600
1. Where the ceiling
is not removable,
please arrange a
necessary service
access under the
indoor unit.
2. The service access
shall be so
arranged that the
electric box cover/
internal
components can be
removed/repaired
in a convenient
manner.

4.3 Installation

4.3.1 Suspension Bolts
(1) Select appropriate location and direction for
installation, and pay careful attention to the space for
the piping, wiring and maintenance.
(2) Cut out the area for the indoor unit in the false ceiling
and install suspension bolts, as shown in Fig. 4.2.
For Concrete Slab
150 to 160mm
Concrete
Fixing Point
Suspension Bolt
(W3/8 or M10)
For Wooden Beam
Suspension
Wooden Rib
(60mm to 90mm
lumber)
Wooden Beam
Fig. 4.2 Mounting the Suspension Bolts
2
For Steel Beam
Screw in
(100 to 150kg)
I Beam
Suspension Bolt
(W3/8 or M10)
Nut
Square Washer
Square Washer
Nut
Suspension Bolt