I received a quote on a Bryant Evolution Hybrid Heat Dual Fuel System today. The Heat Pump in the quote is Bryant Model 286ANA. I asked the guy that did the estimate if the Heat Pump was demand defrost and his response was that "the Evolution Series Controller doesn't require a defrost cycle for the heat pump". I don't think he is correct, but I've been wrong before. Does the Bryant Heat Pump 286ANA have demand defrost or a timed defrost cycle? Thanks for your help.