10
REQUIREMENTS FOR ELECTRICAL CONNECTION
Safety precautions
• You must follow the electric safety regulations when installing the unit.
• According to the local safety regulations, use qualified power supply circuit and circuit break.
• Make sure the power supply matches with the requirement of the device. Unstable power supply
or incorrect wiring may cause malfunction and damage the unit or fire hazard.
• Properly connect the live wire, neutral wire and grounding wire.
• The connection pipes and wires from units A and B must correspond.
• Incorrect wire connections may cause some electric components to malfunction. After attaching
the cable, ensure that the leads between connection to a fixed point are spaced out.
• Cut off the power supply before proceeding any work related to electricity.
• Do not turn on the power before finishing installation.
• 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.
Grounding requirements
• The heat pump is a first class electric appliance. It must be properly grounded by a qualified person
with specialized grounding device. Please make sure it is always grounded effectively, otherwise it
may cause electric shock.
• The yellow-green wire in the appliance is the grounding wire, which cannot be used for other
purposes.
• The grounding resistance should comply with national electric safety regulations.
• An all-pole disconnect switch having a contact separation of at least 1/8" (3 mm) in all poles should
be connected in fixed wiring.
