AERMEC MGH R410A Manuel D'installation page 15

If a power plug is not to be used, provide a circuit breaker between power source and the
unit as shown below.
Main power source
Air
Conditioner
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 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.
(Particularly note the relation between cable length and thickness. (Refer to page
11))
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.
CAUTION
CAUTION
Main power source
Circuit Breaker
Conditioner
Use a circuit
breaker or time
delay fuse.
(14K, 15K, 19K, 20K, 21K)
CAUTION
CAUTION
12
Air
Circuit Breaker
Use a 25A circuit
breaker or time
delay fuse.
(30K)