Multi Variable Air Conditioners Two-way Cassette Type Indoor Unit
17
5 Wiring Work
NOTE:
Units must be grounded securely, or it may cause electric shock.
(1) Please carefully read the nameplate and the wiring diagram before carry out the wiring
work, incorrect wiring could cause malfunction or even damage the unit.
(2) The capacity of power supply must be sufficient and the sectional area of wires in the
room should be above 2.5mm
2
.
(3) The unit should be powered by independent circuit and specific socket.
(4) The wiring should be in accordance with related regulations in order to ensure the units
operate reliably.
(5) Install circuit breaker for branch circuit according to related regulations and electrical
standards.
(6) All wiring must use pressure terminal or single wire. Multi-twisted wire that connects
directly to the wiring board may cause fire hazard.
(7) Keep cable away from refrigerant piping, compressor and fan motor.
(8) Do not alter the inner wires of air conditioner. Manufacturer does not assume
responsibility for damage or abnormal operation due to this reason.
(9) If the unit is installed in places with strong electromagnetic interference, it's
recommended to use twin-twisted shield wire. During wire connection, please pay
attention that the metal shield layer of the twin-twisted wire must be grounded (outer case)
in order to prevent the unit from electromagnetic interference.
(10) The communication wires should be separated from power cord and connection wire
between indoor unit and outdoor unit.
(11) If the project needs higher static pressure, you can set it through the wired controller.
(12) The appliance must be fitted with means for disconnection from the supply mains having
a contact separation in all poles that provide full disconnection under overvoltage
category III conditions, and these means must be incorporated in the fixed wiring in
accordance with the wiring rules.
5.1 Connection of Wire and Patch Board Terminal
(1) Connection of single branch wire (as shown in Fig 5.1.1).
1) Use a stripper to strip away about 25mm of the insulation layer at the end of single
branch line so that the single-core wire can be exposed.
2) Remove the wiring screws on the terminal board.
3) Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in
accordance with screw.
4) Lead the screw across the circle of the single branch line and fix it on the wiring
board.
(2) Connection of multi-twisted wire (as shown in Fig 5.1.2).
1) Use a wired stripper to strip away about 10mm of the insulation layer at the end of
Summary of Contents for VE2C009N432U
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