[R.O. 1966 § 25:2-3]
No new installation of refrigeration equipment, air conditioning equipment or refrigeration and air conditioning equipment requiring the use of water shall be installed on any premises supplied from the municipal water system until a permit authorizing such installations has been issued to the installer by the Director of the Department of Water and Sewer Utilities.
[R.O. 1966 § 25:2-4]
a. 
Applications for permits for refrigeration, air conditioning, or refrigeration and air conditioning to be installed shall be filed on forms supplied by the Division of Sewers and Water Supply. Such applications shall contain the following information:
1. 
Name and address of the applicant.
2. 
Location of the premises where the installation is proposed.
3. 
Name and address of the owners of the premises.
4. 
Names of manufacturers of the units requiring water.
5. 
Manufacturer's identification and classification of the refrigeration units.
6. 
Manufacturer's rating of maximum refrigerative capacity of the unit under the conditions of the planned installation. Rating may be stated in tons per 24 hours or in B.T.U. per hour.
7. 
Horsepower of compressor prime mover, if the unit is of compressor type.
8. 
Where water conservation devices are required, the manufacturer's name, identification, classification and size of the conservation equipment.
9. 
Such additional information as shall be required by the Director of the Department of Water and Sewer Utilities.
b. 
Applications shall be signed by the owner.
c. 
Applications shall designate a master plumber duly licensed by the City and the name of the party installing the unit.
d. 
For the purposes of this chapter and title, the rated capacity in tons shall be determined in accordance with the following method:
1. 
Total maximum B.T.U. per hour of capacity of the installation divided by 12,000; or
2. 
The nameplate horsepower by any compressor prime mover unit for any air conditioning installation; or
3. 
Two-thirds the nameplate horsepower of paragraph 2 above for any refrigeration installation.
In the absence of the required manufacturer's maximum rating in the application, the Director may specify the tonnage of the installation at the ratings indicated by paragraphs 1, 2 or 3 above; or, if these appear inadequate, then by whatever other measure of capacity appears to him/her to be proper.
e. 
An approved copy of the application shall be returned to the applicant to serve as the permit.
[R.O. 1966 § 25:2-5]
All new installations of any individual or collective system of refrigeration equipment, air conditioning equipment, or refrigeration and air conditioning equipment in any premises for a single consumer, shall be installed pursuant to the following specifications:
a. 
All new installations of any individual or collective system of refrigeration equipment, air conditioning equipment, or refrigeration and air conditioning equipment of six tons and over shall be equipped with a water conserving device such as an economizer, evaporative condenser, water cooling tower or similar apparatus. Such device shall not consume for makeup purposes in excess of 5% of the consumption that would normally be used without such device.
b. 
All new installations of refrigeration equipment, air conditioning equipment, or refrigeration and air conditioning equipment under six tons, not using recirculated water, shall be provided with an automatic water supply regulating device so as to limit the flow of water in relation to the condenser temperature reduction requirements of the apparatus. In no case shall the equipment use in excess of 1 1/2 gallons per minute per ton capacity.
[R.O. 1966 § 25:2-6]
a. 
No new installation of any refrigeration or air conditioning equipment shall be connected to the municipal water supply until, upon request, the installation has been approved by the Division of Sewers and Water Supply as being in conformity with the provisions of this chapter and the requirements of any other ordinance applicable thereto.
b. 
In case any such equipment is installed and connected to the municipal water supply in violation of the provisions hereof, the water supply may be shut off from such premises and shall not be again supplied until such violation has been removed.
[R.O. 1966 § 25:2-7]
Each direct water connection to a refrigeration unit, air conditioning unit, or refrigeration and air conditioning unit using water for cooling purposes, shall be equipped with a check valve, except in installations where the water supply piping has no contact with the refrigerant. This will be the case where two substantial and independent wall thicknesses of metal separate the refrigerant from the City water supply.
[R.O. 1966 § 25:2-8]
Refrigerating units, air conditioning units, or refrigerating and air conditioning units with a capacity of more than 20 pounds of refrigerant, shall be provided with a relief valve installed on the outlet side of the check valve of the water supply connection, such relief valve being set at five pounds above the maximum water pressure at the point of installation.
[R.O. 1966 § 25:2-9]
Any person who installs any equipment referred to in this chapter, any owner, agent, lessee or occupant of any premises, who causes or permits the installation or operation of any such equipment, and any person who violates any of the other provisions of this chapter shall, upon conviction thereof, be punished by a fine not exceeding $500, or by imprisonment for a term not exceeding 90 days, or both. A separate offense shall be deemed committed on each day during or on which a violation occurs or continues.