Electrical Wiring - Hitachi RCIM UNIT Installationsanleitung

5 ELECTRICAL WIRING

5.1. GENERAL
DANGER:
Turn off the main power switch to the indoor unit and
-
the outdoor 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 unprotected parts and at the worst, a fire
will occur.
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 below.
Wrap the field supplied insulation around the wires,
-
and plug the wiring connection hole with the seal
material to protect the product from any condensate
water or insects.
5.2. ELECTRICAL WIRING CONNECTION FOR INDOOR UNIT
1. The electrical wiring connection for the indoor unit is
shown below.
Hole for Wiring Connection
(Knock-Out Hole)
Power source Wiring
Operating Wiring
Remote Control Switch Cable
Hold the cables by the support
plate as shown
All manuals and user guides at all-guides.com
(mm)
Power Supply Cable
Control Cable
Remote Control
Switch Cable
Support Plate for Electrical
Wiring
ELECTRICAL WIRING
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 comply with
National Electrical Code (NEC).
2. Check to ensure that the power supply voltage is within
+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. Check to ensure that the ground wire is connected.
2. Connect the cable of an optional remote control switch
or an optional extension cable to the terminals inside the
electrical box through the connecting hole in the cabinet.
3. Connect the power supply and earth wires to the
terminals in the electrical box.
4. Connect the wires between the indoor unit and the
outdoor unit to the terminals in the electrical box.
Power Source
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