User Guide
Heat Controller, Inc. INSTALLATION MANUAL VMH InverterFlex Mini-Split
12
Electrical Work
1) Never fail to have an individual power circuit specically 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 ttings 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) Specication of power source.
4) Conrm that electrical capacity is sufcient.
5) See that the starting voltage is maintained at more than 90 percent of the rated
voltage marked on the name plate.
6) Conrm that the cable thickness is as specied in the power source specica-
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
xed wiring and have an air gap contact separation of at least 3mm in each
active(phase) conductors.
CAUTION
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 qualied and skilled
electricians.
6. An individual branch circuit and single receptacle used only for this air conditioner must be available.