Ductless mini-split system traps.
Municipal Code of Chicago § 18-29-314.2.4.1
in effect18-29-314.2.4.1 Ductless mini-split system traps.
Ductless mini-split equipment that produces condensation shall be provided with an in-line check valve located in the drain line or a trap.
(Added Coun. J. 10-14-21, p. 37722, Art. III, § 24)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2695893Fetched: 10/24/2026
