Table of Contents
Advertisement
Turn OFF the main power switches to the indoor
unit and outdoor unit before electrical wiring or
periodical check, and wait for at least three
minutes.
Check to ensure the indoor and outdoor fans
have stopped before electrical wiring or
periodical check.
Protect the wires, drain pipes, electrical parts,
etc. from rats or other small animals. If not
protected, rats may gnaw at unprotected parts,
which may lead to a fire.
Avoid the contact of wires with the refrigerant
piping, sheet metal edges and electrical
components in unit. Otherwise, the wires may get
damaged or even cause a fire.
Use ELB with medium sensing rate (earth
leakage breaker with action time being equal to
0.1 seconds or less). The failure to do so may
result in electric shock or fire.
The wires must be firmly secured. External force
applied to terminals may cause a fire.
Never connect the power terminal block for air
conditioner to power cord. At the indoor unit side
of air conditioner, power wiring can be extended
through a power distribution box. Be sure to
calculate the wiring capacity carefully, since
excessively low wiring capacity may frequently
cause fire.
Do not start the system before all check points
are thoroughly checked.
Wrap the wires with adhesive tape or other materials
and plug the wiring connection hole with seal
material to protect the product from any
condensate water or insects.
The electrical box entrance hole shall be
designed with wire clamp that must be tightened
to address tension requirements when penetrated
by wires.
Secure the remote controller wire in electrical box
with wire tie.
Tighten screws to the following torques.
M4: 1.0~1.3 N·m
M5: 2.0~2.4 N·m
M6: 4.0~5.0 N·m
M8: 9.0~11.0 N·m
M10: 18.0~23.0 N·m
7.1 General Check
(1) Make sure that the field-selected electrical
components (main power switches, circuit
breakers, wires, conduit connectors and wire
terminals) comply with the National Electrical
Code.
(2) Check to ensure that the power supply voltage is
within ±10% of the rated voltage. The system
can't be started in the case of excessively low
supply voltage.
(3) Check the power capacity.
(4) Ensure the ground wire is connected.
(5) Install the main switch with a space of 3.5mm or
more between phases.
CAUTION
7.2 Electrical Wiring Connection
The electrical wiring connection for indoor unit is
shown in Fig. 7.1.
(1) Connect transmission wiring to the PBC
in electrical box through the connection hole
on electrical box.
(2) Connect the power wiring and earth wires to
the terminals in the electrical box.
(3) Connect the wires between the indoor unit
and the outdoor unit to the terminals in
electrical box.
(4) Tightly clamp the wires with wire tie in the
electrical box.
(5) Upon completion of wiring connection, seal
the wire interface with sealing material to
keep condensate water and insects off.
Hole for Transmission
Wiring
Hole for
Power Wiring
For the minimum size of field-supplied power
cord, please refer to Section 7.3.
7
Hide quick links:
Advertisement
Table of Contents
