WIRING PRECAUTIONS
WARNING
BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE WARNINGS.
All wiring must comply with local and national
●
electrical codes, regulations and must be installed
by a licensed electrician.
All electrical connections must be made according
●
to the Electrical Connection Diagramlocated on
the panels of the indoor and outdoor units.
If there is a serious safety issue with the power
●
supply, stop work immediately. Explain your
reasoning to the client, and refuse to install the
unit until the safety issue is properly resolved.
Power voltage should be within 90-110% of rated
●
voltage. Insu cient power supply can cause
malfunction, electrical shock, or fire.
Installation of an external surge suppressor at the
●
outdoor disconnect is recommended.
If connecting power to fixed wiring, a switch or
●
circult breaker that disconnects all poles and
has a contact separation of at least 1/8in (3mm)
must be incorporated in the fixed wiring. The
qualified technician must use an approved
circuit breaker or switch.
Only connect the unit to an individual branch
●
circuit. Do not connect another appliance to that
outlet.
Make sure to properly ground the air conditioner.
●
Every wire must be firmly connected. Loose
●
wiring can cause the terminal to overheat,
resulting in product malfunction and possible fire.
Do not let wires touch or rest against
●
refrigerant tubing, the compressor, or any
moving parts within the unit.
If the unit has an auxiliary electric heater,
●
it must be installed at least 40in (1 m)
away from any combustible materials.
1
2
3
INDOOR
Indoor Unit
Signal High
Power Supply
UNIT
Voltage
208/230V
Connection Diagram (9K/12K/18K/24K)
L1 L2
S1
S2
Nonpolar RS-485
Indoor Unit
INDOOR
communication
Power Supply
UNIT
Low voltage
208/230V
Connection Diagram (36K/48K/60K)
To avoid getting an electric shock, never
●
touch the electrical components soon
after the power supply has been turned
o . After turning o the power, always
wait 10 minutes or more before you touch
the electrical components.
Make sure that you do not cross your
●
electrical wiring with your signal wiring.
This may cause distortion, interference or
●
possibly damage to circuit boards.
No other equipment should be connected
●
to the same power circuit.
Connect the outdoor wires before
●
connecting the indoor wires.
WARNING
BEFORE PERFORMING ANY
ELECTRICAL OR WIRING WORK,
TURN OFF THE MAIN POWER TO
THE SYSTEM.
1
2
3
OUTDOOR
Power to
Signal High
UNIT
Indoor Unit
Voltage
208/230V
(1)L1 (2)L2
S1
S2
Nonpolar RS-485
Power to
OUTDOOR
communication
Indoor Unit
UNIT
Low voltage
208/230V
31
208/230V~60Hz
Power Supply
PE
L1 L2
Main
Power Supply
208/230V
208/230V~60Hz
Power Supply
PE
L1 L2
Main
Power Supply
208/230V