Wouldn’t the AC unit have to intake cool air from the room (since it’s expelling cold air into the room), and mix the cool air with the warm outside air? (Maybe the numbers work out differently in this condition but I’m not convinced yet, would have to see a calculation)
A two hose AC does take in both indoor and outdoor air, but they never mix. (The two hoses both carry outdoor air; indoor air is pumped through two vents in the AC.) The AC just pumps heat from the indoor air to the outdoor air. Similar to a fridge.
Wouldn’t the AC unit have to intake cool air from the room (since it’s expelling cold air into the room), and mix the cool air with the warm outside air? (Maybe the numbers work out differently in this condition but I’m not convinced yet, would have to see a calculation)
A two hose AC does take in both indoor and outdoor air, but they never mix. (The two hoses both carry outdoor air; indoor air is pumped through two vents in the AC.) The AC just pumps heat from the indoor air to the outdoor air. Similar to a fridge.