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11.4. Wiring of main power supply and equipment capacity
Schematic Drawing of Wiring (Example)
[Fig. 11.4.1] (P.17)
A
Switch (Overcurrent breaker
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B
Earth leakage breaker
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Heat source unit
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1. Use dedicated power supplies for the heat source unit and indoor unit. Ensure OC and OS are wired individually.
2. Bear in mind ambient conditions (ambient temperature, direct sunlight, rain water, etc.) when proceeding with the wiring and connections.
3. The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one rank thicker in diameter.
Make sure the power-supply voltage does not drop more than 10%.
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6. A switch with at least 3 mm [1/8 in] contact separation in each pole shall be provided by the Air Conditioner installer.
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Warning:
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Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.
Caution:
Some installation sites may require attachment of an earth leakage breaker for the inverter. If no earth leakage breaker is installed, there is a danger of
electric shock.
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