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Question DetailsAsked on 6/15/2017

I have 3, 12,000 btu ac and would like to have 3 separate electrical line install ran from the outside

The lines are for my 1st, 2nd, & attic.

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2 Answers

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Answered 1 year ago by Member Services

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If you mean separate meters, most utilities will only do that if each meter is serving a different customer - say for separate rental units being billed individually for electric use.


If you mean just separate circuits running from the main service, then putting in a individual circuits from the main breaker panel, or (especially if these are tripping out your panel main breaker) maybe a sub-panel with separate circuits to each A/C could be done. To reduce wiring cost, if your issue is that the units are on one circuit (which they should not be) and are tripping the breaker when more than one or maybe two is running at a time, might be that running a controller relay system that prevents more than one unit from running at a time - might be cheaper than running new wiring, though for this sort of thing commonly individual circuit runs could be done on the outside of the house in conduit pretty cheaply.


For electric wiring changes, and Electrician would have to check out your system configuration and capacities and lengths/location of possible new circuit runs. For looking into "permissive relays" controlling how many units can run at one time, a Heating and A/C contractor with experience in that would be the answer.


Note these solutions would only likely work if these are truly independent units - if they are mini-splits coming off a single outside compressor/condensor unit that is where most of the power demand is, so wiring the indoor split evaporator/fan units spearately would likely not solve your problem if breaker tripping is the issue.


If you have a mini split unit with separate evaporator units in several rooms coming off one central outdoor unit and you mean you want them independtly controlled (so they don't necessarily all come on at the same time) it is generally a fairly easy job for a heating and A/C contractor to rig individual thermostats. That would mean only the ones in the rooms getting above the thermostat set-point would turn on, but would NOT prevent multiple split units from sometimes running at the same time if several ofthe thermostats happened to trigger them to ON at the same time.

Answered 1 year ago by LCD




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