Electric Connection - Midea MTA-18WN1 Technical & Service Manual

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MCAC-UTSM-201707
and drainage pipe to prevent water leak.

6. Electric Connection

6.1 Caution
Power supply of indoor unit and outdoor unit must be within normal voltage range.
Power wiring, control wiring, disconnect switches and over-current protection must be supplied
by the installer. Wire size should be sized per requirement.
The power cord type designation is H07RN-F.
Before connecting wire, please switch off the power supply. Otherwise, it may cause electric
shock.
External wiring of the indoor unit must be grounded that means power wire of outdoor unit shall
be connected with external grounding wire reliably.
Electrical wiring must be done by professionals, and wiring according to the wiring label.
Run power wiring from the disconnect switch to the unit.
Route wires from disconnect through power wiring opening provided and into the unit control
box.
Install the proper size time-delay fuses or circuit breaker, and make the power supply
connections.
Before electrical wiring, an all-pole disconnection device must be installed.
Install the electrical leakage device according to national regulation.
Power wires and communication wires shall be arranged orderly and reasonably without mutual
interfere. Connection pipes and valves should without mutual contact. In general, two wires
connection is not allowed, unless the welding joint is well welded and wrapped with insulating
tape.
Must select an appropriate connection wire according to the specification requirements. In
Midea Tropical R410A High Efficient Duct Technical Manual 50Hz
88

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