Electrical Work - Heat Controller VMH 09 Installation Manual

Heat Controller, Inc.

Electrical Work

Electric safety regulations for the initial Installation
1. Power voltage should be in the range of 90%~110%of rated voltage.
2. The creepage protector and main power switch with a 1.5 times capacity of Max. Current of the unit should
be installed in power circuit.
3. Ensure the air conditioner is grounded well.
4. Connect wiring to the unit according to the electrical diagram located on the panel of the outdoor unit.
5. All wiring must comply with local and national electrical codes and be installed by qualified and skilled
electricians.
6. An individual branch circuit and single receptacle used only for this air conditioner must be available.
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 in-
side 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 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 specifica-
tion.
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.
INSTALLATION MANUAL
CAUTION
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