Hitachi RPK-0.8FSNQS, Operation & Installation Manual

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14
7.1 General Check
(1) Make sure that the field-supplied electrical
components (main power switches, circuit breakers,
wires, conduit connectors and wire terminals) have
been properly selected according to the electrical
data given in “Technical Catalog”. Make sure that
the components comply with National Electrical
Code (NEC).
(3) Check to ensure that the power supply voltage is
within 6% of the rated voltage.
(4) Check the capacity ofthe electrical wires.
If the power source capacity is too low, the system
cannot be started due to the voltage drop.
(5) Check to ensure that the earth wire is connected.
(6) PowerSource Main Switch
7.2 Electrical Wiring Connection
The electrical wiring connection for the indoor unit
is shown in Fig. 7.2.
(1) Connect the cable of an optional remote control
switch to A, B terminals of the terminal board inside
the electrical box through the connecting hole in the
cabinet.
(4) Connecting the wires to TB1.
Check to ensure that the terminal specification,
shall be applied to the screw (M4 for power supply,
M3.5 for operating line) of the terminal box.
(2) Use shielded twist pair cable for control cable
between outdoor unit and indoor unit, control cable
between indoor units and remote control switch
cable ofPC-AR.
Install a multi-pole main switch with a space
of 3.5mm or more between each phase.
(3) The power supply and earth wires have been
connected in the factory. Please connect to the
power circuit with a ELB(Fig.7.2).
(2) Connect the wires between the indoor unit
and the outdoor unit to 1,2 terminals of the
terminal board inside the electrical box through
the connecting hole in the cabinet.
The screws of terminal box can not be removed
from the terminal box to protect the screws from
falling. When fastening the terminal, ensure
that the screw is fastened through the hole of
terminal.
Fig.7.2 Wiring Connection for Electrical
Box and Terminal Board
Screw for
Earth Wire
Terminal
Board
Electrical Box Cover
(Opening this cover,
PCB1 is in it.)
Fix Cord
by Clamp
Release Right Side Screw and
Connect Terminal Board to Power
Source Line, Transmitting Line between Indoor
and Outdoor and Remote Control Switch Line.
Wireless
Receiver Part
1 2 A B
Ｌ Ｎ
A B 1 2
L N
2-Wires
Non-Polarity
220-240V~/50Hz
Control
Cable
Power Source
Cable
220V~/60Hz