Hitachi FSG Series, Technical Catalogue

Page: 234 / 424

12
/4
UNITS INSTALLATION
12.2 RCI (4-WAY CASSETTE TYPE)
12.2.1 FACTORY-SUPPLIED ACCESSORIES
(Models: RCI-1.0~5.0)
Accessory Quantity Purpose
Suspension
Bracket (1)
1
Suspension
Bracket (2)
1
Flat Washer 4
Spring
Washer
4
Nut 4
For Unit
Suspension
Wire Clamp 1
For Drain Hose
Connection
Cord Clamp 2
For Fixing
Remote Control
Switch Cable and
Louver Sensor
Cable
Pattern
Paper for
Installation
1
Installation for
Indoor Unit
Screw 4
For Fixing Pattern
Paper
Ring Core 2
■
Applicable Air Panel (Option)
Applicable Air Panel (Option)
Indoor Unit
For Wired Remote
Control Switch
For Wireless Remote
Control Switch
Without
heater
With
heater
Without
heater
With
heater
RCI-1.0 P-G12WA2E – P-G12WAH2E –
RCI-1.5
RCI-2.0
RCI-2.5
RCI-3.0
P-G23WA2E P-G23WA2E1 P-G23WAH2E P-G23WAH2E1
RCI-4.0
RCI-5.0
P-G46WA2E P-G46WA2E1 P-G46WAH2E P-G46WAH2E1
12.2.2 INITIAL CHECK
n
Install the indoor unit with a proper clearance around it
for operation and maintenance working space, as shown
below (Space around Indoor Unit).
n
Provide a service access door near the unit piping
connection area on the ceiling.
Distance from Wall Side
- Check space between ceiling and false ceiling is
enough as indicated below.
- Check the ceiling surface is flat for the air panel
installation work.
Unit HP A(mm)
RCI-1.0~3.0HP 298
RCI-4.0/5.0HP 348
Clearance
10-20 mm
Unit High
In False Ceiling
Check down slope Pitch of Drain Piping is following the
specifications indicated in chapter Drain Piping
?
NOTE:
Unit model RCI-1.0 has only two air outlets. One is at
piping connection side and the other is at the opposite
side. Confirm the position of air outlets before
installing the unit.
12.2.3 OPENING OF FALSE CEILING AND
SUSPENSION BOLT
Cut out the area for the indoor unit in the false ceiling and
install suspension bolts, as shown below.
Check to ensure that the ceiling is horizontally level,
otherwise water can not flow.
Strengthen the opening parts of the false ceiling.
Piping
Connection Piping
Connection
Indoor Unit
A
(mm)
B
(mm)
RCI-1.0
RCI-1.5
RCI-2.0
RCI-2.5
RCI-3.0
910 875
RCI-4.0
RCI-5.0
1230 1195
Dimension of Opening
A
Dimension of Suspension
Bolts B
Suspension Bracket
Dime
ns
io
n of O
pen
ing
A
Dime
ns
io
n of
Su
sp
en
sio
n
B
o
lts
:
56
0
mm
Piping Connection
Side
Opposite Side from
Piping Connection