En-7
Indoor terminal block
Indoor/outdoor unit
connecting wire
D
Outdoor terminal block
Earth wire
(green/yellow)
• Make earth wire a little longer than others. (More than 55 mm)
• For future servicing, give extra length to the connecting wires.
2-4. CONNECTING WIRES FOR INDOOR UNIT
1) Remove electrical cover (1).
2) Remove cord clamp.
3) Pass indoor/outdoor unit connecting wire
D
process the end of the
wire.
4) Loosen terminal screw, and connect first the earth wire, then indoor/
outdoor unit connecting wire
D
to the terminal block. Be careful not
to make mis-wiring. Fix the wire to the terminal block securely so that
no part of its core is appeared, and no external force is conveyed to
the connecting section of the terminal block.
5) Firmly tighten the terminal screws to prevent them from loosening.
After tightening, pull the wires lightly to confirm that they do not move.
6) Secure indoor/outdoor unit connecting wire
D
and the earth wire with
the cord clamp. Never fail to hook the left claw of the cord clamp. Attach
the cord clamp securely.
Lead wire
3-1. PIPING WORK
1) Remove the pipe cover, hose band, pipe band, and spacer (cushion)
of the indoor unit. Dispose of the spacer (cushion), as it will not be
needed.
2) When using pipe with super insulating material (about ø48 mm liquid
pipe, ø51 mm gas pipe) for indoor connecting pipe, remove plate and
turn it over so that the concave part faces upward.
When the ceiling is above 2.4 m and 2.7 m or below
Move the slide switch (SW3) to the right to increase airflow volume.
* When the ceiling is above 2.7 m, airflow volume may be insufficient
even with the slide switch (SW3) set to “increase airflow”.
1) Make sure that the breaker for air conditioner is turned OFF.
2) Remove electrical cover (1) and (2) of the indoor unit.
3) Slide out the electronic control P.C. board, and switch up the slide
switch (SW).
4) Put the electronic control P.C. board back to the original position, and
install electrical cover (1) and (2).
Note:
• Perform static elimination before setting.
• Default setting is Normal.
Electrical cover (1)
Electrical cover (2)
Electronic
control P.C.
board
Plate
Pipe band
Plate
(turn over)
Plate
35 mm
15 mm
Pipe cover
Electrical cover (1)
Slide switch SW3
Normal Increase airflow
volume
Spacer (cushion)
3. FLARING WORK AND PIPE CONNECTION
Indoor/outdoor unit
connecting wire
D
Cord clamp
Terminal block
[When using pipe with super insulating material]
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