TOSOT DC INVERTER U-MATCH AIR
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4 ELECTRIC WIRING WORK
4.1 Wiring Precautions
① Before obtaining access to terminals, all supply circuits must be disconnected.
② The rated voltage of the unit is as shown as Table 1-4-1 and Table 1-4-2.
③ Before turning on, verify that the voltage is within the 187~252V range(for single phrase unit).
④ Always use a special branch circuit and install a special receptacle to supply power to the air conditioner.
⑤ Use a special branch circuit breaker and receptacle matched to the capacity of the air conditioner.
⑥ The special branch circuit breaker is installed in the permanent wiring. Always use a circuit that can trip all
the poles of the wiring and has an isolation distance of at least 3 mm(1/8inch) between the contacts of each
pole.
⑦ Perform wiring work in accordance with standards so that the air conditioner can be operated safely and
positively.
⑧ Install a leakage special branch circuit breaker in accordance with the related laws and regulations and
electric company standards.
① The power source capacity must be the sum of the air conditioner current and the current of other electrical
appliances. When the current contracted capacity is insufficient, change the contracted capacity.
② When the voltage is low and the air conditioner is difficult to start, contact the power company to raise the
voltage.
4.2 Electrical Wiring
(1) For solid core wiring (Figure 3-2-6)
1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about 25 mm
(15/16 inch).
2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
4) Shape the loop wire properly, place it on the terminal board and tighten securely with the terminal
screw using a screwdriver.
(2) For strand wiring (Figure 3-2-6)
1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about 10mm
(3/8inch).
2) Using a screwdriver, remove the terminal screw (s) on the terminal board.
3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire
end.
4) Position the round terminal wire, and replace and tighten the terminal screw with a screwdriver.
(Figure 3-2-7)
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