Heiko 2P Series, Service Manual

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Introduction
2
Domestic air conditioner
1.2.1 Embedded wire checking before installation
Check the embedded wire diameter suitable to request:
(Power supply from indoor: 2.5kw
≥ 1.0mm
2
3.5kw,5kw ≥ 1.5mm
2
7kw ≥ 1.0mm
2
; Power supply from outdoor
≥ 1.0mm
2
)
Check the embedded wire are four roots, L/N/COM/GND; GND is needed, if not, thunder or high voltage wave
from power grid will impact to the performance
Using a multi-meter to test short circuit of the four roots wires, make sure no short circuit happen.
1.2.2 Caution in Repair
●
Warning
Be sure to disconnect the power cable plug from the plug socket
●
before disassembling the equipment for
a
repair.
Working on the equipment that is connected to a power supply can cause an electrical shook.
If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits, do not
touch any electrically charged sections of the equipment.