Building Code

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301. PERMITS: A permit must be obtained for the installation of any mechanical work.

EXCEPTION: Any portable equipment, minor repairs, or self-contained refrigeration systems.

302. LICENSE: All mechanical contractors engaged in the performance of HVAC work shall be licensed per the Illinois Municipal Code 11-32-1.

303. 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.

304. EXHAUST SYSTEMS: Every bath and toilet room shall be ventilated by either an exterior window opening to the outer air of not less than 3 sq. feet in area or by a mechanical ventilation system vented directly to the atmosphere. Bath exhaust fans shall not be vented to attic or soffit areas. All exhaust vent(s) shall terminate in an approved fitting. All bathroom exhaust ductwork in an unconditioned space shall be insulated.

Cloths dryer vents shall be a minimum .016" thick rigid metal duct. A flexible vent connector shall not be installed in walls or in length over 6 feet.

305. EQUIPMENT INSTALLATION: Heating equipment may not be installed in attic or crawl space areas unless such equipment is of approved type for installation in such spaces and such equipment shall be installed within a conditioned space. ATTIC: When equipment is installed in an attic a permanent stairway or an approved pull down stair assembly shall be installed. All walkways to the equipment shall be a minimum of 24" wide.

CRAWL: Any equipment installed in a crawl must be installed on a concrete slab which extend a minimum of 3 feet in width along the control side of the equipment All equipment located in a crawl space shall be raised at least 8" above the slab.

INTERIOR INSTALLATIONS: All interior installations shall be raised a minimum of 3" above the adjoining floor. Equipment suspended from the floor shall have a ground clearance of at least 8" above the finished floor.

306. All buildings are to have an external shutoff valve for liquid or vapor fuels located on the building.

307. All vents for combustible fuel appliances shall terminate a minimum of 35 inches above final grade.