5
PRECAUTIONS
Wiring
• Installation must be performed by a qualified person. Otherwise, it may cause personal injury or
damage.
• Must follow the electric safety regulations when installing the unit.
• According to the local safety regulations, use qualified power supply circuit and circuit breaker.
• Install a circuit breaker of adequate capacity only used for the system; otherwise, it may cause
malfunction.
• An all-pole disconnection switch having a contact separation of at least 1/8" (3 mm) in all poles should
be connected in fixed wiring.
• The appliance should be properly grounded. Incorrect grounding may cause electric shock.
• Make sure the power supply matches with the requirement of the appliance. Unstable power supply
or incorrect wiring may cause malfunction of the unit, electric shock or fire hazard.
• Properly connect the live wire, neutral wire and grounding wire.
• Be sure to cut off the power supply before proceeding any work related to electricity and safety.
• Do not turn the power on before finishing installation.
• If the power supply or signal control wires are damaged, it must be replaced by a qualified person
in order to avoid problems.
• The temperature of refrigerant circuit will be high, please keep the interconnection cable away from
the copper tube.
• The appliance shall be installed in accordance with national wiring regulations.
• Installation must be performed in accordance with the requirement of NEC and CEC by a qualified
person only.
• The heat pump is a first class electric appliance. It must be properly grounded with specialized
grounding device by a qualified person. Please make sure it is always properly grounded, otherwise
it may cause electric shock.
• The yellow-green wire in the appliance is the grounding wire, which can’t be used for other purposes.
• The grounding resistance should comply with national electric safety regulations.
• All wires of indoor unit and outdoor unit should be connected by a qualified person.
• If the length of power connection wire is insufficient, please contact the dealer for a new one.
Do not extend the wire yourself.
WARNING
