Service Manual

U-Match Series DC Inverter Service Manual
86
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 3-4-1)
1) Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about 25mm (1
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 3-4-1).
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 3-4-2).
10mm(3/8inch)
A Solid wire B Strand wire
Solderless
terminal
Insulation layer
25mm(1inch)
Figure 3-4-1
Screw with
special washer
Round
terminal
Terminal
board
Screw with
special washer
Round
terminal
Wire
Wire
Insulation tube
Insulation tube
Cord clamp