Hitachi RPIM Serie Manual De Instalación página 14

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5
ELECTRICAL WIRING
8
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
Electrical box location
Electrical box is provided at the bottom side of the unit as shown bellow.
RPIM-unit
bottom side view
Electrical wiring installation
1. Remove at the bottom side of the unit, the Fan cover service panel.
2. Cut out the center of the rubber bushing in the wiring connection hole of the unit.
3. Connect the power supply and ground wires to the terminals in the electrical box.
4. Connect the wires between indoor unit and outdoor unit.
5. Connect the cable of the Remote Control Switch.
6. Tightly fix the wires with the cord clamp inside the indoor unit.
7. Seal the wiring connection hole after running the cables with the seal material (cover plate) to protect the unit from
condensed water and insects
Terminal Board Connections:
PCB
TB:
Terminal Board
TF:
Transformer
PCB: Printed circuit board
Electrical
Box
Holes for
wiring
connection
TB
TF
Electrical
Box
Remote Control
(PC-ART)
Transmission Wires
Power supply wires
(Single phase)
Earth Screw
loading