City of Ithaca, NY
Tompkins County
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Table of Contents
Table of Contents
The following regulations shall apply to all water-cooled equipment installed for the purpose of reducing the dry bulb temperature or decreasing the absolute humidity of air, whether for comfort, air conditioning, refrigeration, processing or whatever other purposes.
A. 
For the purpose of this article, the following terms shall have and shall be construed to have the following meanings:
AIR-CONDITIONING SYSTEM and REFRIGERATION SYSTEM
Includes any combination of equipment, whether compressor or other type, by which heat is removed from the air and from which the accumulated or effluent heat is wholly or partially removed by the use of water.
(1) 
An installation for maintenance, by heat removal, of temperatures which are not less than 60° F.
(2) 
An installation for maintenance, by heat removal, of temperatures which are less than 60° F.
PERSON
Includes a natural person, partnership, corporation or association. Whenever used with respect to any penalty, the term "person," as applied to partnerships or associations, shall mean the partners or members thereof, and as applied to corporations, the officers thereof.
SYSTEM
Any combination of apparatus, individual unit or group or collection of units supplied with water through any single customer service pipe connected to the public water system.
B. 
For the purpose of this article, in no event shall the "rated capacity in tons" be considered less than the following:
(1) 
The total maximum Btu's per hour of capacity on the installation divided by 12,000;
(2) 
The nameplate horsepower of any compressor prime mover unit for any air-conditioning installation; or
(3) 
Two-thirds the nameplate horsepower of Subsection B(2) above for any refrigeration installation.
No person shall install, operate or use any equipment for air conditioning or refrigeration which requires a supply of water from the system of the City of Ithaca without first having procured written permit therefor from the office of the Water and Sewer Division.
A. 
Application.
(1) 
An application for permit shall be made to the office of the Water and Sewer Division and shall provide the following information:
(a) 
The name and address of the applicant.
(b) 
The location of the premises where the installation is proposed.
(c) 
The names and addresses of the owners of the premises.
(d) 
The names of the manufacturers of the units requiring water.
(e) 
The manufacturer's identification and classification of the refrigeration units.
(f) 
The manufacturer's rating of maximum refrigerative capacity of the unit or units under the conditions of the planned installation. (Rating may be stated in tons per 24 hours or Btu's per hour.) In the absence of the required manufacturer's maximum rating, the Superintendent may specify the tonnage of the installation at the ratings indicated in § 262-76B or, if these appear inadequate, then by whatever other measure of capacity appears to him/her to be proper.
(g) 
The horsepower of the compressor prime mover if the unit is of the compressor type.
(h) 
Where water conservation devices are required (to comply with § 262-79 hereof), the manufacturer's name, identification, classification and size of the conservation equipment.
(i) 
The elevation and plan showing general piping arrangements and details of all points of connection to building supply water (piping direct to condensor units, makeup supply into tower fan, etc.).
(j) 
Such additional information as shall be required by the Water and Sewer Division.
(2) 
The application shall be signed by the owner or tenant, and applications for installation shall designate a plumber duly qualified to receive permits under other sections of these regulations.
B. 
Fee. A fee shall be paid at the time the application for inspection is filed with the Plumbing Inspector and shall be equal to the existing rate for a new fixture under the Plumbing Code.[1]
[1]
Editor's Note: See Ch. 146, Building Construction, Art. IV, Plumbing.
C. 
Permit to install.
(1) 
Permits to install piping or connect equipment will be issued at the office of the Water and Sewer Division, but only in the name of a licensed plumber who is duly qualified to perform plumbing work in the City of Ithaca in accordance with the Plumbing Code.
(2) 
Within 48 hours following the completion of any work authorized by a permit, a notice of completion and a request for inspection shall be returned, in writing, on the standard plumbing inspection blank, accompanied by the inspection fee, by the plumber receiving the permit to the office from which the permit was obtained.
D. 
Permit to operate. After final inspection and approval of the installation, a permit to operate or use the equipment will be issued at the office of the Water and Sewer Division in the name of the owner or tenant.
A. 
Systems with a capacity of three tons or less shall not use water directly or indirectly, except when used with conservation equipment, from the public supply.
B. 
Systems with a total capacity of more than three tons but not exceeding five tons may use water directly from the public supply at a rate not exceeding 2.0 gallons per minute per ton if the water temperature is 75° F. or less or 3.0 gallons per minute per ton if it is above 75° F., provided that they are equipped with an automatic regulating valve which will:
(1) 
Stop the flow of water when the refrigerating machine is shut down; and
(2) 
Throttle the flow of water down to the momentary requirements of the system.
C. 
All systems having a total capacity exceeding five tons shall be equipped with evaporative condensers, cooling towers, spray ponds or other water-cooling equipment. This equipment shall be of sufficient capacity to ensure conformance with the requirements of Table I for makeup water when operating under full loading at maximum summer temperature.
Table I
Maximum Allowable Water Use
Water Hardness
(parts per million)
Maximum Use
(gallons per minute per ton)
0 to 139
0.1
140 to 199
0.15
200 to 254
0.2
255 to 339
0.3
340 to 424
0.4
425 and over
0.5
All installations shall be made in conformance with the Plumbing Code[1] and subject to the inspection of the Plumbing Inspector and will include the following general protective measures:
A. 
On installations which operate with the use of water directly from the public supply system, every direct connection shall be equipped with a suitable brass body, brass-fitted check valve and vacuum breaker installed in the branch supply line to each unit.
B. 
The discharge and the connections for the disposal of wastewater shall be in accordance with the Plumbing Code and Board of Public Works regulations regarding sanitary sewers.
C. 
Cooling waters which are to be used for other purposes shall be provided with free, above-the-rim discharge before entering other equipment; otherwise, permission shall be obtained, in writing, from the Plumbing Inspector approving the proposed connections and use.
D. 
On installations other than those described above, there shall be a physical break between the public water supply piping and the piping of the installation, so arranged as to make backsiphonage to the public water supply system impossible.
[1]
Editor's Note: See Ch. 146, Building Construction, Art. IV, Plumbing.
Any permit which is issued under these regulations to operate or use equipment may be revoked by the Water and Sewer Division for any one of the following reasons:
A. 
Failure of the holder of the permit to discontinue using water for the purposes covered by the permit immediately upon notice to do so issued by the Water and Sewer Division during an emergency or to forestall an impending emergency.
B. 
Alterations, changes of equipment or piping, improper operation or lack of maintenance which results in conditions that:
(1) 
Are hazardous to the potable water supply either within the premises or in the supply mains; or
(2) 
Cause unnecessary waste of water.
C. 
The use of water is found to exceed the quantities under § 262-79 of these rules and regulations.
A. 
For new installations, these regulations shall be effective upon publication. Publication shall be made in accordance with provisions of any applicable laws, acts, opinions, ordinances or regulations.
B. 
Existing installations shall be modified to conform to the provisions of these regulations, applications to operate shall be filed and permits shall be obtained. Modifications shall be completed and permits obtained in accordance with the provisions of this chapter within six months after adoption.
C. 
Existing installations conforming to the provisions of these regulations in all matters except the conservation of water shall not be penalized under provisions of § 262-83 for failure to provide conservation for a period of one year after adoption. Such installations shall, however, be subject to all other provisions of the regulations six months after adoption. In the event that a critical condition develops in the system subsequent to the adoption of these rules and regulations, all installations not equipped to conserve water shall be subject to immediate discontinuance on orders of the Water and Sewer Division.
A. 
Failure to comply with the above regulations shall be sufficient cause to penalize the licensee by discontinuance of water service for failure to correct the violation within 15 days after notification that the violation exists.
B. 
Licensed plumbers guilty of violation of any of the rules and regulations herein shall be prohibited from securing further permits from the Water and Sewer Division; and when willful violations warrant, charges may be preferred to the Examining Board of Plumbers seeking revocation of the plumber's license.
The Board of Public Works reserves the right to change, by resolution, from time to time, the rules and regulations governing the installation and operation of air-conditioning and refrigeration equipment.