ENGLISH
-
Secure the indoor unit using the nuts, washers.
Suspension bolts (4)
Suspension
bracket
False ceiling
Liquid piping
Gas piping
connection
Panel (to be installed
later, shown only as
a reference)
Drain piping
connection
Wiring hole (30x30)
Open the knockout
hole for wiring (Ø32,5)
?
N O T E
• If a false ceiling has already been installed, complete all piping and
wiring work inside the ceiling before hooking-up the indoor unit.
•
Secure the indoor unit using the nuts, flat washers and spring wash
-
ers. (These nuts and washers are supplied, 4 pieces each)
Adjusting the space between indoor units and
false ceiling opening
-
Adjust the indoor unit to the correct position while
checking with the pattern for installation.
Checking scale for dimension of opening
Pattern board for installation
Packing (Corrugated board)
For ceiling already completed with panels.
Indoor unit
Attach this side of the scale
to the inner side of the
opening of the ceiling
Attach this side of the scale
to the lower side of the unit
Indoor unit
Attach this side
of the scale
to the ceiling
panel
Checking scale
Check the height of the
ceiling at each corner
of the unit
Check the dimension
of opening at each
side of the unit
Attach this side
of the scale to
the outer side of
the unit
Ceiling panel
Checking scale
Ceiling not completed with panels yet.
Pattern paper for installation
Dimension
for
opening
Unit
Suspension bolt
Surface
of
ceiling
Pattern board for installation
Screw
(M6)
Dimension
for opening
-
Tighten the nuts of the suspension brackets after the
adjustment is completed. Apply LOCK-TIGHT paint to the
bolts and nuts in order to prevent them from loosening. If
not done, abnormal noises or sounds may occur and the
indoor unit may come loose.
4 REFRIGERANT PIPING
4.1 PIPING CONNECTION
4.1.1
Piping Position
Position of piping connection is the following, which is available
from all directions, top, left or right.
4.1.2
Size of piping connection
Piping size
mm (in)
Gas piping
Liquid piping
RCI-1.0/1.5
Ø 12.70 (1/2)
Ø 6.35 (1/4)
RCI-2.0
Ø 15.88 (5/8)
RCI-2.5-6.0
Ø 9.52 (3/8)
Thickness of Copper Pipes
(mm)
Nominal Diameters
Outer Diameters
Thickness
1/4
6.35
0.80
3/8
9.52
0.80
1/2
12.70
0.80
5/8
15.88
1.00
REFRIGERANT PIPING
PMML0253A rev.5 - 08/2016
5