(a) Unless otherwise expressly stated, whenever used in this article, the following words shall have the meaning given to them by this section:
(1) Air Conditioning System: One or more air conditioning units installed or constructed by or for the owner, lessee, or other occupant of a building or any portion thereof, designed and intended to operate either independently or as a single unit to provide cooled air to such building or any portion thereof; together with any or all of the following: piping for the intake of water and for the disposal of discharge water; the water regulating device or devices; the water conserving device or devices; the water meter and all valves and connections.
(2) Air Conditioning Unit: Any device for cooling or dehumidification, or both, of air, in the operation of which water for such operation is either furnished by the village or is discharged into the sewer system of the village.
(3) Ton Of Refrigeration: The heat required to melt ice at the rate of one ton in twenty four (24) hours. One compressor horsepower shall be considered equivalent to one ton of refrigeration.
(4) Water Conserving Device: A cooling tow spray pond, evaporating condenser or other equipment by which water is cooled and refrigerated, thereby limiting the use of water from the village mains to that amount lost through evaporation.
(5) Water Regulating Device: A regulating valve or other device, the purpose of which is to limit the maximum use of water to a predetermined rate. (1963 Code § 23.401)