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English 4

•  Tap M4 screw holes in the metal 

plate (field supplies) as shown in the 

right drawing and mount the switch 

box on the metal plate.

Holes to be tapped in the metal plate 

on site (unit: mm)

32

21

2-M4

(1

20

)

(70)

42

Cautions:

 

■ When wiring the extension cable, the air holes will not be blocked.

 

■ When the extension cable is longer than necessary, cut it to the appropri

-

ate lenght, peel the insulation, attach the round crimp terminal for M3 (field 

supplied) and carry out the wiring. The lenght of insulation to be peeled off 

is as shown. (Work carefully so that the connector side may not be cut.)

45

For M3 

Round crimp terminal

Wiring method

Connect the extension cable connector side to the indoor unit PCB (printed 

circuit board).

For connection to the indoor unit, follow the procedure shown below.

Cautions:

 

■ Make sure to turn off the power supply before starting the wiring work and 

do not turn on until all the work is completed. 

Read also the installation manual and the wiring diagram of the indoor unit 

when carrying out the work.

 

■ When wiring the extension cable, do not pass where the extension cable 

may be affected by the power line or noise.

 

Make sure to securely connect the connectors. 

Defective connection may result in incorrect detection of room temperature 

on malfunction.

 

Do not splice wires.

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