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<h2 id="powering-a-split-system">Powering a Split System</h2>Mini splits are powered at the outdoor unit only. Every indoor unit that is connected to the outdoor unit will be powered by the outdoor unit via the communication cable that connects them together. The outdoor unit must be hard-wired to a dedicated circuit breaker to comply with NEC in most areas, using fuses of proper amperage and corresponding rated wire. A disconnect box as well as a surge protector are also highly recommended.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025050909-5dd5e6e6-5010-4f3b-836d-c7b14c241808-how_ductless_mini_split_works.png" style="width: 519px;" class="fr-fic fr-dib"> All systems use 3-conductor wire. The 110/120 (115V) systems are powered as Line, Neutral, and Ground (typically colored Black, White, and Green), while 208/240 (230V) systems are powered with two hot lines (Black and Red) and a Green ground (no neutral is used).Note that 115V system must use a single-pole breaker and 230V systems require a double-pole breaker. Tandem breakers are not allowed.Central (Ducted) Split systems are always 230VAC and require hardwiring both the outside condensing section as well as the indoor air handler unit to a dedicated breaker.

Mini splits are powered at the outdoor unit only. Every indoor unit that is connected to the outdoor unit will be powered by the outdoor unit via the communication cable that connects them together. The outdoor unit must be hard-wired to a dedicated

How is the System Powered?

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The Indoor Unit Does Not Turn On

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What Does It Take to Install a Mini Split?

What type of oil is used with the unit?

Why would a ductless mini split freeze up on the inside air handler if its cooling reasonably well, the filters are clean, and the level of refrigerant charge is proper?

HVAC Related General Queries

Can a wall-mounted unit be mounted onto the ceiling instead?

Can the unit be operated without a remote control?

Can the LED Display on the indoor unit be turned off?

Can the line set exit from the side of the indoor unit, rather than the back/through the wall?

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Indoor Unit

Is there a recommended resource to find a professional that is located near me?

Can the line set be angled upward?

What gauge of wire is used for connections between the ductless mini split indoor and outdoor sections?

What hole saw size is needed to drill the wall for accommodating the drain and refrigerant lines?

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My Pioneer Wall-Mounted Mini Split is Leaking Water

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All About Energy-Star Tax Credits and Rebates for Pioneer Split Systems

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Error Code E0

Error Code FY

Indoor Unit Displaying 0A/OA

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Wall Mounted WYT-19 Diamante Series

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Connecting a Diamante Pro/Ultra (WYT-19/WYT-22) to Pioneer Airlink

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Powering a Split System

How is the System Powered?Updated 6 hours ago

Powering a Split System