Units Installation - Hitachi RPI-6.0FSN4E Installation And Operation Manual

3 Units installation

3 UNITS INSTALLATION
D A N G E R
• Check to ensure that the accessories are packed with the indoor unit.
• Do not install the indoor units outdoors. If installed outdoors, an electric
hazard or electric leakage will occur.
• Consider the air distribution from each indoor unit to the space of the
room, and select a suitable location so that uniform air temperature in
the room can be obtained. It is recommended that the indoor units be
installed 2.3 to 3 meters from the floor level. If the unit is installed higher
than 3 meters, it is also recommended that a fan be utilised to obtain
uniform air temperature in the room.
• Avoid obstacles which may hamper the air intake or the air discharge
flow.
• Pay attention to the following points when the indoor units are installed
in a hospital or other places where there are electronic waves from
medical equipment, etc.
• Do not install the indoor units where electromagnetic wave is directly
radiated to the electrical box, remote control cable or remote control
switch.
• Install the indoor units and components as far as practical or at least 3
meters from the electromagnetic wave radiator.
• Prepare a steel box and install the remote control switch in it. Prepare a
steel conduit tube and wire the remote control cable in it. Then connect
the ground wire with the box and tube.
• Install a noise filter when the power supply emits harmful noises.
• This unit is exclusive non electrical heater type indoor unit. It is prohib-
ited to install a electrical heater in the field.
• Mount suspension bolts using M10 (W3/8) as size, as shown below:
I-Beam
Suspension Bolts
(W3/8 or M10)
3.1 UNIT INSTALLATION
3.1.1 Installation
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.

Service Space
Service Space of
False Ceiling
(Top view)
For Concrete Slab
150~160mm
Concrete
Steel
Anchor Bolt
3 PMML0255A rev.3 - 09/2014
• Do not put any foreign material into the indoor unit and check to ensure
that none exist in the indoor unit before the installation and test running.
Otherwise a fire or failure, etc., may occur.
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, outdoor unit, remote control switch and
cable within approximately 3 meters of strong electromagnetic wave
radiators such as medical equipment.
• 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.
Wooden Bar
(60 mm to 90 mm
Nuts
Square)
Wooden Beam
Sling Bolt
(W3/8 or M10)
Unit HP
2.0-3.0
4.0-6.0

Mounting the suspension bolts
- Using the dimension shown above select the final location and in-
stallation 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.
Square washers
(mm)
A B
1123 600
1514 600