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2) Connect the cable to the outdoor unit
1. Remove the control cover from the unit by loosen-
ing the screw.
Connect the wires to the terminals on the control
board individually.
2. Secure the cable onto the control board with the
cord clamp.
3. Refix the control cover to the original position with
the screw.
4. Use a recognized circuit breaker "A"
between the power source and the unit.
A disconnecting device to adequately disconnect
all supply lines must be fitted.
Circuit
Breaker
(A)
CAUTION
After the confirmation of the above conditions, prepare the wiring as follows:
1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of
wiring, be guided by the circuit diagram posted on the inside of control cover.
2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibra-
tions to which the unit is subjected during the course of transportation. Check them and make sure that
they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
3) Specification of power source.
4) Confirm that electrical capacity is sufficient.
5) See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the
name plate.
6) Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness. (Refer to page 32))
7) Always install an earth leakage circuit breaker in a wet or moist area.
8) The following would be caused by voltage drop.
• Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal
function of the overload.
9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an
air gap contact separation of at least 3mm in each active(phase) conductors.
Grade
7K, 9K, 12K
16
Outdoor Unit
Terminal block
(Pillar terminal)
Over 5mm
Holder for
connecting
cable
Control cover
Connecting cable
-33-
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