2. Guideline for each installation process
25 _ Heat pump 50Hz/R410A
Part 3 Design and installation
• Use only copper wires.
• Make sure to shut down the power before starting the electric wiring work.
Do not set ON any switch until the work is completed.
• The outdoor unit has an inverter compresser which generates noise and charges the outer casing with the leakag current.
The outdoor unit should be grounded so that the effect of the generated noise on othe equipment can be reduced, and
that the outer casing can be discharged.
• Never install a phase advancing capacitor for power factor improvement.
(Even if it is installed, the power factor is not improved. And if it is installed, the outdoor unit is abnormally overheated.)
• Use specified electric wires in the wiring, and connect them securely.
Fix them in such a way that external force is not applied at the terminals
(transmission wiring in the local field and ground terminal).
• Never push excessive electric wires into the units.
• Protect electric wires with conduit tubes or other proper tubes so that they will not be damaged by edges of knock holes.
• Do not use multi conductor cable which have more than 5 wires in one core.
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