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You can wire a single nest to control both heating and cooling.
Although if your AC system is one of the newer inverter variable speed compressor styles, best to just use the controller that came with the system.
Conventional T-stats (like the nest) are basically on/off, stage1/stage2 and can't take proper advantage of the variable speed functionality.
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1968 Mustang Coupe
2008.5 Mazdaspeed 3
1997 GMC Sonoma ZR2
2014 F150 5.0L XTR 4x4
A vehicle for all occasions
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