14
ELECTRICAL CONNECTION
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 screws which fasten the wiring in the casing of electrical fittings
are liable to come loose from vibrations 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.
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).
10) If used as MONO unit, for the standby control needs, the cross
section of the cable connected to L(1), 1, 2(N) must be sufficient for
the maximum system current. The maximum system current is equal
to the sum of indoor unit and outdoor unit rated current.
11) If indoor unit is used as MULTI unit, only terminals 1, 2(N), S
and PE needs to be connected. Terminal L(1) is not connected.
