3
.1.2
Size of piping connection
Piping size
mm (in)
Liquid piping
Gas piping
RCI-(1.0-2.0)
Ø 6.35 (1/4)
Ø 12.70 (1/2)
RCI-(2.3-6.0)
Ø 9.52 (3/8)
Ø 15.88 (5/8)
4. DRAIN PIPING
I
NCORRECT
Incorrect: Upward Slope
Incorrect: Rising Part
!
C A U T I O N
•
Do not create an upper-slope or rise for the drain piping, since
drain
water will flow back to the unit and leakage to the room
will occur
when the unit operation is stopped.
•
Do not connect the drain pipe with sanitary or sewage piping
or any
other drainage piping.
•
When the common drain piping is connected with other indoor
units,
the connected position of each indoor unit must be higher
than the
common piping. The pipe size of the common drain
pipe must be large
enough according to the unit size and
number of unit.
•
Drain piping will require insulating if the drain is installed in a
location
where condensation forming on the outside of drain
pipe may drop
and cause damage. The insulation for the drain
pipe must be
selected
to insure vapor sealing and prevent
condensation forming.
•
Drain trap should be installed next to indoor unit. This trap must
be
designed to good practice and be checked with water
(charged) and
tested for correct flow. Do not tie or clamp the
drain pipe and refriger
-
ant pipe together.
?
N O T E
CORRECT
Vinyl chloride pipe (VP25)
Min. 100mm
(higher as possible)
Drain piping of unit side
Common drain piping (Min.VP30)
(Down slope from rising part)
This drain piping shall be
separating from others
pipes
1/25 to 1/100
Down-Slope
Install drainage in accordance with national and local codes.
After performing drain piping work and electrical wiring, check to
ensure that water flows smoothly as in the following procedure
Checking with Drain-Up Mechanism and Float
Switch
•
Switch ON the power supply.
•
Pour approximately 2.0 to 2.5 liters of water gradually into
the
drain pan, then float switch up and drain pump star
working
automatically.
•
Check to ensure that the water flows smoothly inside th
transparent
drain pipe connection whether no water leakage
occurs. When
water cannot be found at the end of the drain
piping, pour more
water smoothly into the drain pan.
•
If the water overflows from the drain pan, recheck the drai
piping.
•
Switch OFF the power supply after.
?
N O T E
Pay attention to the thickness of the insulation when the left side
piping is performed. If it is too thick, piping can not be installed in
the unit.
5. ELECTRICAL WIRING
5.1 GENERAL INFORMATION
!
D A N G E R
•
Turn off the main power switch to the indoor unit and the out-
door unit before electrical wiring work or a periodical check is
performed.
•
Check to ensure that the indoor fan and the outdoor fan have
stopped before electrical wiring work or a periodical check is
performed.
•
Protect the wires, drain pipe, electrical parts, etc. from rats or
other small animals. If not protected, rats may gnaw at unpro-
tected parts and at the worst, a ire will occur.
!
C A U T I O N
•
Install an ELB (Earth Leakage Breaker) in the power source line.
•
Use twisted shielded pair cable or shield pair cable for transmission
wires between the indoor and the outdoor units, and connect the
shielded part to the earth screw in the electrical box of the indoor unit
as shown below.
•
Wrap the field supplied insulation around the wires, and plug the wir
-
ing connection hole with the seal material to protect the product from
any condensate water or insects.
•
Tightly secure the wires with the cord clamp inside the indoor unit.
•
Lead the wires through the knockout hole in the side cover when
using conduit.
•
Secure the cable of the remote control switch using the cord clamp
inside the electrical box.
General Check
1.
Make sure that the field-selected electrical components
(main power switches, circuit breakers, wires, conduit connectors
and wire terminals) have been properly selected. Make sure that
the components follow local codes and regulations.
2.
Check to ensure that the power supply voltage is /-
10% of the
rated voltage.
3.
Check the capacity of the electrical wires. If the power
source capacity
is too low, the system cannot be started due to the voltage drop.
4.
Select power cable size according to the table on next page.
Note:
(1)
Field wiring shall be in conformity to local laws and
regulations, and
all wiring operations must be performed
by qualified professionals.
(2)
Refer to relevant standards for above-noted power
cord size.
(3)
Where power cord is connected through junction box,
be sure to
determine the total current and choose wires
based on the table below.
(4) As a minimum, the chosen power cord shall be compliant with
requirements on neoprene sheathed wire #57 as stated in
IEC 60245-1, while the power cord shall be made from copper
conductor.
(5) The wiring specifications for weak-current communication circuit
shall not be lower than that for RVV(S)P shielded wires or
equivalent, and the shielding layer shall be grounded.
(6) A switch that can ensure all-pole disconnection shall be installed
between power supply and air conditioning unit in such a manner
that the contact spacing shall not be less than 3mm.
Model
Power
source
Max
current
Power
source
cable size
IEC 60335-1
Transmitting
cable size
IEC 60335-1
220V
~240V
50Hz/60Hz
5A
0.75
mm2
RCI-1.0FSKDN1Q
RCI-1.5FSKDN1Q
RCI-2.0FSKDN1Q
RCI-2.3FSKDN1Q
RCI-2.5FSKDN1Q
RCI-3.0FSKDN1Q
RCI-4.0FSKDN1Q
RCI-5.0FSKDN1Q
RCI-6.0FSKDN1Q
0.75
mm2
Model
4
