Hitachi RCD-1.0FSN Manuel D'installation page 10

5
ELECTRICAL WIRING
6
Drain trap should be installed next to indoor unit. This
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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 refrigerant
pipe together.
NOTE:
Install drainage in accordance with national and local
codes.
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.
4.2. DRAIN PIPE CONNECTION
1. The position of the drain pipe connection is shown below.
90
2. Prepare a polyvinyl chloride pipe with a 32 mm outer
diameter.
3. Fasten the tubing to the drain hose with an adhesive and
the factory-supplied clamp. The drain piping must be
performed with a down-slope pitch of 1/25 to 1/100.
5. ELECTRICAL WIRING
5.1. ELECTRICAL WIRING CONNECTION FOR INDOOR UNIT
CAUTION:
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 beside.
The electrical wiring connection for the indoor unit is shown
beside.
1. Connect the cable of the remote control switch to the
terminals A and B in electrical box through the
connecting hole in the cabinet, as shown beside.
2. Connect the power supply and ground wires to the
terminals in the electrical box.
3. Connect the wires between the indoor unit and the
outdoor unit to the terminals 1 and 2 in the electrical
box, as shown beside.
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 1.8 liters of water into the drain pan,
-
then float switch up and drain pump start working
automatically.
Check to ensure that the water flows smoothly or
-
whether no water leakage occurs. When water cannot
be found at the end of the drain piping, pour another
approximately 1.8 liters of water into the drain pan.
Switch OFF the power supply after.
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4. Insulate the drain pipe after connecting the drain hose.
Insulation
(Factory-Supplied)
Phase Connection
Remote Control Cable
1/25~1/100
Down Slope
Gradient of Drain Piping
Insulation (Field-Supplied)
Polyvinyl Chloride Tube
Clamp
(Field-Supplied)
(Factory-Supplied)
Control Cable
1N 220-240V/50Hz
Power Source Cable
Earth Screw
1/25~1/100
Down Slope