My new unit came with a 15,000 btu and pre-wired for a second A/C unit so since it was going to be built for me I had the second A/C unit installed by the factory and the second A/C unit is a 13,500, both have wall mounted T-stats and they are both duct into the same duct work and it is a 50 amp rig, I check the breaker panel and both A/C units have a 20 amp breaker each.
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