Installation; Opening Of False Ceiling And Suspension Bolts - Hitachi RCI-1.0FSN3 Installation & Maintenance Manual

4-WAY CASSETTE
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
Humidity) 80%. Thus, apply additional insulation
materials to the indoor unit external surface to
avoid dew condensation.
The warmed air may stay at the high ceiling
space during the heating operation. Thus, the
parallel installing of a circulator is recommended.
Avoid installing the air conditioning where the
temperature detecting devices such an alarm
device or a control device. It may cause a failure
of an alarm device or a control device.
of indoor units are installed in a same room and
required to operate with equal conditions. In the
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
Check to ensure that the number of below
is within 0.3kg/m
danger situation if the refrigerant in the
Outdoor Unit leaks into the room where this
Indoor Unit is installed.
(Total Refrigerant Quantity per one Outdoor Unit)
Volume of the room where this
(
Indoor Unit is installed.
In detail, refer to the Installation Manual for
outdoor unit.
Make sure that the refrigerant leakage
test should be performed. The refrigerant
(Fluorocarbon R410A) for this unit is
incombustible, non-toxic and odorless.
However if the refrigerant is leaked and is
which could cause suffocation.
10
2-40
o
C/RH (Relative
3
. Otherwise it may cause
0.3kg/m
)
4.3

Installation

4.3.1 Opening of False Ceiling and Suspension
Bolts
(1)
direction of the indoor unit paying careful
attention to the space for the piping, wiring
and maintenance.
(2) Cut out the area for the indoor unit in the
shown in Fig. 4.3.
(3) Pattern Board and Checking Scale for
Installation
checking scale are printed on the packing.
Cut off the checking scale for dimension of
opening from packing.
The usage is shown in the item 4.3.4.
Checking Scale for
Dimension of Opening
Packing
(Corrugated Board)
Dimension of Opening
860 to 910
20
840 (Unit Size)
760
(Dimension of
Suspension Bolts)
3
Piping Connection
Side
Fig. 4.3 Opening of False Ceiling and
Suspension Bolts
NOTE:
Ceiling Work: It is different depending on
information.
• Do not install electric light units and the
indoor unit to the same furring for ceiling.
installing the indoor unit and electric lights,
each.
Pattern Board
for Installation
20
4-12 x 32 Holes
(for Suspension Bolt)
4-Positions of
Suspension Bolts
Drain Piping
(M10 or W3/8)
Connection Side
(Field-Supplied)
P5414946-rev.1
TC-12001
(mm)