AC/Unit how big to go?

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wrote:

The same way it's possible to have multi-speed motors.
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wrote:

Some say they have dual compressors and others say they have dual speeds for a single compressor.
They are quite popular but expensive so more new ones are coming out all the time.
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Manual J to size the equipment.
Manual D to size the ducting.
Anything else is a pure guess. Do it right, or do it twice!
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http://www.udarrell.com/airconditioning-sizing.html
Bigger Is Not Better: Sizing Air Conditioners Properly http://www.proctoreng.com/articles/bigger.html
HVAC-Calc, the easy to use Heat Loss and Heat Gain Calculator http://www.hvaccomputer.com/gsizeindex.asp
Information courtesy of Roy Starrin National/International News Editor www.VirginiaNewsSource.com
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