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.
AIR-CONDITIONING SYSTEM and REFRIGERATION SYSTEM
(1)
(2)
PERSON
SYSTEM
For the purpose of these regulations, the following
terms shall have and shall be construed to have the following meanings:
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.
AIR-CONDITIONING SYSTEMAn installation for maintenance, by heat removal, of temperatures which are not less than 60° F.
REFRIGERATION SYSTEMAn installation for maintenance, by heat removal, of temperatures which are less than 60° F.
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.
Any combination of apparatus, individual unit, 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 these regulations, in no event
shall the "rated capacity in tons" be considered less than the following:
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 a written permit therefor from the office of the Water and
Sewer Division.
A.
Application for permit.
(1)
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 name and address 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. (The 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 § 348-40B or, if these appear inadequate, then by whatever other measure of capacity appears to the Superintendent to be proper.
(g)
The horsepower of the compressor prime mover,
if the unit is of compressor type.
(h)
Where water conservation devices are required (to comply with § 348-43 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 condenser units, makeup supply into tower
fan, etc.).
(j)
Such additional information as shall be required
by the Water and Sewer Division.
(2)
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.
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 names of licensed plumbers who are 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, 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:
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 to the requirements
of Table I for makeup water when operating under full loading at maximum
summer temperature.
|
Table 1
| ||
|---|---|---|
|
Maximum Allowable Water Use
| ||
|
Water Hardness
(parts per million)
|
Maximum Use
(gallons per minute per ton)
| |
|
0 - 139
|
0.1
| |
|
140 - 199
|
0.15
| |
|
200 - 254
|
0.2
| |
|
255 - 339
|
0.3
| |
|
340 - 424
|
0.4
| |
|
425 and over
|
0.5
| |
All installations shall be made in conformance
with the Plumbing Code 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.
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.
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:
