(A) In all residential districts, the exhaust or mechanical part of any air conditioning or heating unit, other than window units, shall be subject to side yard requirements except if such unit faces a street or an alley and is located fifteen (15) feet or more from an adjoining property.
(B) In all other districts, the exhaust or mechanical part of any air conditioning unit or heating unit may encroach five (5) feet into the side yard building setback.
('74 Code, § 25-215) (Ord. 89-08, passed 4-27-89)