[R.O. 1957, 17:1-1]
No person shall have installed or operate any air-conditioning
and/or refrigeration system or equipment pertaining thereto requiring
the use of water, supplied by any public or semi-public water company
or derived from any well or any other source without first conforming
to the provisions of this article and the Building and Plumbing Codes
of the City.
[R.O. 1957, 17:1-3 to 17:1-9 inc.]
(a) The term "air conditioning" as used herein applies to that equipment
used primarily for human comfort cooling and shall be considered on
the basis that one compressor motor horsepower is equal to one ton
of refrigeration.
(b) Equipment used for a purpose other than air conditioning shall be
considered on the basis that one compressor motor horsepower is equal
to 0.6 ton of refrigeration.
(c) Refrigeration and/or air conditioning equipment using gas or other
type of energy shall be rated on the basis that one (1) ton is equal
to the removal of twelve-thousand (12,000) British Thermal Units per
hour with a five (5) degree Fahrenheit evaporating temperature and
eighty-six (86) degree Fahrenheit condensing temperature from the
space being cooled.
(d) The term "public water system" or "potable public water system" as
used in this article shall mean water supplied to the consumers by
any public or semi-public water company.
(e) All new installations of any individual or collective system of air
conditioning equipment and/or refrigeration equipment of three (3)
tons and over shall be equipped with a water conserving device such
as economizer, evaporative condenser, water cooling tower or similar
apparatus, which device shall not consume for makeup purposes in excess
of five percent (5%) of the consumption of water that would normally
be used without such device, except as provided in Subsection (K)
(1) of this section.
(f) All new installations of air conditioning equipment, and/or refrigeration
equipment under three (3) 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 one and one-half (1 1/2) gallons per minute
per ton capacity.
(g) If two (2) or more units, which in the aggregate total to three (3)
tons or over, are installed to serve the same building or premises,
said unit or units shall be subject to the same requirements applicable
to a unit or equipment of three (3) tons or over, as in this article
provided.
(h) Each direct water connection to an air conditioning unit and/or refrigeration
unit using water for cooling purposes and which is connected with
the potable public water system, shall be equipped with a vacuum breaker
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 public water system.
(i) Air conditioning units and/or refrigerating units with a capacity
of more than twenty (20) pounds of refrigerant shall be provided with
a relief valve installed on the outlet side of the vacuum breaker
of the water supply connection, such relief valve being set at five
(5) pounds above the maximum water pressure at the point of installation.
(j)
(1)
All existing installations of air conditioning and/or refrigeration
equipment installed on any premises, requiring the use of water, supplied
by a public or semi-public water company, or derived from a well or
any other source shall be subject to the provisions prescribed in
this article.
(2)
All persons who have installed such systems and equipment prior
to the adoption of this Code shall, notify the Division of Public
Works of such existing installation. Failure to give such notice shall
be a violation of this article.
(3)
The person in possession of any premises upon which refrigeration
and/or air conditioning equipment requiring the use of water is already
installed, shall make application and obtain a permit for the existing
installation not later than September 1, 1953. Such application shall
contain the same information as in the case of a new installation.
(4)
All existing installations of air conditioning and/or refrigeration
equipment, requiring the use of water, installed prior to the adoption
of this Code shall comply with the requirements of this article in
the same manner as new installations.
(5)
Such equipment already installed shall be changed, rebuilt or
remodeled and all the work and equipment required therefore, shall
be installed and completed on or before May 31, 1954, pursuant to
the inspection and supervision of the Director of Public Works or
other designee, for good cause shown, in writing extend the time for
compliance for a further period, or periods.
(k)
(1)
All installations of any individual or collective system of
air conditioning equipment and/or refrigeration equipment of three
(3) tons and over shall be equipped with a water conserving device
as provided in Subsection (e) of this section.
(2)
The Director of Public Works or other designee may grant permission
in writing for a diffusion device which will return the water in a
pure and uncontaminated condition, without loss or waste, back into
the ground instead of the device required under Subsection (e) of
this section.
(3)
The Director of Public Works or other designee, may grant permission
in writing for a device which will return the water in a pure and
noncontaminated condition without loss of waste into the public water
system instead of a device required under Subsection (e) of this section.
(4)
If such permission is granted for a diffusion device to return
the water into a public water system it will be the responsibility
of the property owner, tenant or other legal occupant of the premises
serviced by such system of refrigeration and/or air conditioning equipment
to insure that no water is wasted or contaminated thereby.
(5)
It is the declared intent of the Council that no diffusion well,
recharge basin, stream, brook, pond, lake or any other source of water
or public water system connecting device shall be permitted under
this article unless it is assured that all water used in such refrigeration
and/or air conditioning system will be effectively returned in a pure
and noncontaminated condition after use to the sources from which
the said water is obtained or to a public water supply system.
(l) In no case shall such air conditioning and/or refrigeration systems
or such equipment pertaining thereto adversely affect the flow, quantity,
quality or state of water to other users in the area.
(m) The discharge of waste into the City sewage system shall not:
(1)
Overburden the City system of sewage disposal;
(3)
Violate any of the provisions of this Code respecting safety
of persons or property.
(n) No air-conditioning and/or refrigeration equipment using water as
a direct cooling medium may be installed, converted, modified or adjusted
unless a means of water disposal shall first be provided in accordance
with the provisions of this Code.