On Saturday, September 28, 2019 at 1:25:15 PM UTC-5, rbowman wrote:
On 09/28/2019 10:11 AM, Davej wrote:

If an HVAC system was "appropriately" sized, what maximum duty
cycle should be seen? [...]

Does it maintain the desired temperature on hot days? If it can't
it's undersized.

But what is a "reasonable" desired temperature? Is 20F less than
outdoors considered "reasonable?" So I should be able to maintain
75F indoors at 100% duty cycle if the outdoor temp is 95F?