Hitachi RPC-1.5FSN3 - Installation; Position of Suspension Bolts

12
P5416543
4.3 Installation
4.3.1 Position of Suspension Bolts
(1) Determine the nal location and installation
direction of indoor unit with care to the space
for piping and wiring.
(2) After the position of indoor unit is
determined, make holes in the ceiling to
install the suspension bolts.
(3) The position of suspension bolts is shown
below.
•
Multiple Combinations
The twin combination, the triple combination and
the quad combination for simultaneous operation
of indoor units are installed in a same room and
required to operate with equal conditions. In the
case of these combination indoor unit types, if
each indoor unit is partitioned by a wall, furniture
or a curtain, etc, it may cause an operation
failure. In addition, in the case of rearranging
furniture or remodeling an interior after the
installation, pay attention to effects for indoor
units combination operation.
•
To avoid any corrosive action to the heat
exchangers, do not install the indoor unit in an
acid or alkaline environment.
•
The temperature and humidity inside the ceiling
have the potential to exceed 30
o
C/RH (Relative
Humidity) 80%. Thus, apply additional insulation
materials to the indoor unit external surface to
avoid dew condensation.
•
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 switch.
(B) Install the indoor unit and components as
far as practical or at least 3 meters from the
electromagnetic wave radiator.
(C) 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 the tube.
(D) Install a noise lter when the power supply
emits harmful noises.
(4) Ceiling Work: It is different depending on
the building structure. Consult with an
architect or an interior nish worker for more
information.
• Do not install electric light units and the
indoor unit to the same furring for ceiling.
If installed, electric lights may icker or
vibrate by the indoor unit operation. When
installing the indoor unit and electric lights,
a furring for ceiling must be separated for
each.
•
For the indoor unit with motion sensor, the
detecting area for the motion sensor is shown in
the gure below.
HP A B
1.5, 2 960 916
2.5, 3 1270 1226
4 ~ 6 1580 1536
< Detecting Area >
1.8m
9m
7.2m
Floor-to
-
Ceiling
Height
2.7m
Example for 1.5 to 6HP indoor units
Depth 7m
0.8m from Floor Level
Detecting Area
Detecting Area
120(280)
(22)
A
(B)(22)
( ): Dimension for Suspension Bolt
Upper Surface