(A) Permits: a permit must be obtained for the installation of any mechanical work. Exception: Any portable equipment, minor repairs, or self-contained refrigeration systems.
(B) Licenses: all mechanical contractors engaged in the performance of HVAC work shall be licensed per the Illinois Municipal Code 11-32-1.
(C) Alteration of equipment: it shall be unlawful for any person to alter, disturb, or change any equipment or to permit any equipment to be altered, disturbed, or changed unless done in conformity with the regulations in this code.
(D) Exhaust systems:
(1) Every bath and toilet room shall be ventilated by a mechanical ventilation system vented directly to the atmosphere. Bath exhaust fans shall be vented to the exterior. All exhaust vent(s) shall terminate in an approved fitting. All bathroom exhaust ductwork in an unconditioned space shall be insulated per Illinois Energy Conservation Code.
(2) Clothes dryer vents shall be a minimum .016 inch thick rigid metal duct and shall be sealed with approved metallic tape {no duct tape or screws). Flexible vent not permitted in walls.
(E) Equipment installation: HVAC equipment shall not be installed in an attic or crawl space area unless approved for installation in such spaces. Such equipment shall be installed within a conditioned space. Smoke and CO detectors shall be required in the room.
(F) Attic: where equipment is installed in an attic, a permanent stairway or an approved pull-down stair assembly (500 lbs. rated or better) shall be installed. All walkways to the equipment room shall be as minimum of 24 inches wide; do not compress the insulation. The wall/ceiling assembly shall be provided with a minimum of 5/8" type X drywall and insulated per 2018 Illinois Energy Code.
(G) Crawl space: any equipment installed in a crawl space shall be installed above a four-inch concrete slab extending a minimum of three feet in width along the control side of the equipment. All equipment located in a crawl space shall be raised at least eight inches above the slab.
(H) Interior installations: all interior installation shall be raised a minimum of three inches above the adjoining floor.
(I) Exterior installation: all equipment shall be securely fasten to wall brackets or concrete pads.
(J) Horizontal roof drains: shall be fully insulated with minimum R-6.
(Ord. 1885, passed 2-20-17; Am. Ord. 2086, passed 5-16-22)