[HISTORY Adopted by the Council of the City
of New Rochelle 7-21-1987 by Ord. No. 214-1987. Amendments noted where
applicable.]
[Amended 3-18-2003 by Ord. No. 63-2003]
This chapter shall be known as the "New Rochelle
Plumbing and Drainage Code." It shall incorporate the standards that
pertain to plumbing and drainage found in the Plumbing Code of New
York State, which shall be referred to in this chapter as the "State
Code."
The City of New Rochelle and all users of the
city's sanitary sewer system shall be subject to all applicable rules
and regulations contained in the Westchester County Environmental
Facilities Ordinance No. 1, as amended.
The Building Official is hereby designated as
the code enforcement officer, and he shall be responsible for the
enforcement of the New Rochelle Plumbing and Drainage Code. Employees
of the Bureau of Buildings, and such others as the Building Official
may designate, shall perform inspections, issue orders for the correction
of violations and investigate complaints.
[1]
Editor's Note: Former § 242-4, Examining
Board of Plumbers, as amended, was repealed 4-20-2006 by Ord. No.
94-2006.
[Amended 12-19-1995 by Ord. No. 274-1995]
A.
Qualification and examination.
(1)
Qualification. It shall be unlawful for any person
to engage in the business of plumbing or to install, alter or repair
any plumbing system in the City of New Rochelle, New York, or to display
a sign or to give other notice setting forth or intending to imply
that he is engaged in the business of plumbing, unless he has obtained
a Westchester County certificate of qualification, after examination,
and has duly registered said certificate with the Plumbing Inspector.
(2)
Application and examination. Every person who desires
to engage in the business of plumbing shall make written application
upon a form to be prescribed and furnished by Westchester County and
pay county fees.
(3)
Registration. Forthwith, upon the receipt of the county
certificate of qualification, the applicant shall register at the
office of the Plumbing Inspector.
B.
Misuse of licenses. The Plumbing Inspector shall investigate
the registration and license of every plumber and shall promptly report
to the Westchester County Examining Board of Plumbers any violation
of the provisions of law relating to the loaning, renting, selling
or transferring of licenses. The Plumbing Inspector shall immediately
apply to the Examining Board of Plumbers of Westchester County for
the forfeiture of the license and certificate of qualification of
any plumber who shall have loaned, rented, sold or transferred such
license or sign in violation of law, and the Plumbing Inspector shall
summon and have prosecuted such offender as provided by law.
C.
Additional penalties. Any person who omits or refuses
to comply with or resists or willfully violates any of the rules,
orders or sanitary regulations herein, or who obstructs or hinders
any inspector or officer in the due performance of his duty hereunder,
if a master plumber, shall forfeit any certificate of qualification
or registration which he may hold.
[Amended 12-19-1995 by Ord. No. 274-1995]
No department, officer or employee of the City
of New Rochelle having charge or jurisdiction of the city's water
mains and/or sewers within the limits of the City shall issue a permit
to any person, firm, association or corporation unless such person,
firm, association or corporation is the holder of a certificate of
qualification issued by the Westchester County Examining Board of
Plumbers and is a registered master plumber at the office of the Plumbing
Inspector.
[Amended 12-19-1995 by Ord. No. 274-1995]
It shall be unlawful to do plumbing and drainage
installation except pursuant to approved drawings or approved amendments
thereof as provided herein.
A.
Plans. The owner or agent shall file a plan with the
Bureau of Buildings showing the system of plumbing to be installed,
which drawings must be approved by the Plumbing Inspector before work
is begun. No modification of the approved drawings shall be permitted
unless amended or supplemental drawings covering the proposed change
or changes are filed and approved. All such plans shall be submitted
in duplicate, and one copy, stamped with the approval of the Plumbing
Inspector, shall be kept on the premises where the installation is
being carried on.
B.
Notification of plumbing. No work shall be started
until the master plumber has filed a notification card, prescribed
and furnished by the Department of Development, with the Plumbing
Inspector. Repairs and replacements of plumbing and drainage may be
made without the filing of drawings in the Bureau of Buildings, but
said exemption from the filing of drawings for repairs and replacements
shall not be construed to include any case where new, or replacements
for, vertical and/or horizontal lines of soil, waste or vent pipes
are proposed. In any event, however, notification cards shall be filed
and permits issued before starting the work. Said repairs and replacements
shall comply in all respects with the weight, quality, materials,
arrangements and venting as provided in this code. The provisions
of this code shall apply to all extensions, alterations and other
work to be done in connection with plumbing or house drains in old
buildings the same as in new buildings, except minor repairs, which
shall be construed as meaning repairs to the existing plumbing system
known to the trade as "jobbing."
C.
Installation of oil burners. No plumbing work in connection
with the installation or operation of oil burners or incidental thereto
shall be performed by other than a plumber duly licensed by the County
of Westchester.
D.
Exceptions. The provisions of this code shall not
apply to the City (public) systems of sewerage and sewage treatment,
plans of which have been approved by the New York State Department
of Health.
[Amended 12-19-1995 by Ord. No. 274-1995]
The Bureau of Buildings shall make the charges as set forth in Chapter 133, Fees, for the following, after approval of plans by the Plumbing Inspector and filing of notification of plumbing to be installed:
A.
There shall be a fee for permit to proceed and inspection
of a certificate of approval for six fixtures or waste-discharging
outlets or fewer, and an additional fee for each additional fixture
or waste-discharging outlet exceeding six.
B.
There shall be a fee for the replacement of fixtures
and repairs and sewer cappings and the issuance of a certificate of
approval therefor.
C.
There shall be a fee for inspection and testing of
each gas piping system and issuance of a certificate of the same and
on buildings wherein other plumbing is being done and filed for and
where gas piping is being installed.
A.
The office of the Plumbing Inspector shall be open
to the public daily, except Saturdays, Sundays and holidays.
B.
The Plumbing Inspector shall receive and carry with
him at all times a suitable badge or other official means of identification
for the purpose of inspection and examination of all premises where
plumbing is being installed or repairs are being made.
C.
In the discharge of his duties, the Plumbing Inspector
shall have the authority at any reasonable hour to enter any premises
or building in which plumbing work is being installed.
D.
The Plumbing Inspector shall require the submission
of and shall examine plans and applications for permits. If the same
are found to comply with the provisions of this code, he shall issue
permits for the work specified in such applications.
E.
The Plumbing Inspector shall collect all fees for
permits issued as provided by this code and shall issue receipts therefor.
He shall transfer all fees collected by him to the proper authority
provided by law to receive such funds.
F.
The Plumbing Inspector shall make all inspections
and tests as provided for in this code, and, upon the satisfactory
completion and final test of the plumbing system, he shall issue a
certificate of approval for any work approved by him.
G.
The Plumbing Inspector shall condemn and reject all
work done or being done or materials used or being used which do not
in all respects comply with the provisions of this code. He shall
endeavor to compel an immediate correction of the conditions by the
issuance of a notice of violation therefor; and, failing in this,
he shall report the facts and circumstances to the Corporation Counsel
for appropriate action. The Plumbing Inspector shall investigate complaints
by an owner as to unsatisfactory or inadequate work on the part of
any plumber. All complaints shall be made in writing by said owner
with a direct statement of facts thereof.
H.
The Plumbing Inspector shall keep a record of applications
filed, permits issued, certificates of approval of completed work
issued and reports of notices and orders issued.
I.
The Plumbing Inspector shall make a monthly report
to the Director of Public Works of permits issued, certificates of
approval issued and all other business transactions of his office,
including the number of inspections made.
J.
The Plumbing Inspector shall maintain an official register of all persons, firms or corporations lawfully entitled to carry on or engage in the business of plumbing or to labor at the trade of plumbing to whom a plumber's certificate of qualification has been issued in accordance with the provisions of § 242-5A of this code.
K.
The Plumbing Inspector shall cause the arrest and
prosecution of all persons unlicensed to do plumbing work who violate
the provisions of this code.
A.
Inspections. All new plumbing work and such portions
of existing systems as may be affected by new work or any changes
shall be inspected to ensure compliance with all the requirements
of this code and to assure that the installation and construction
of the system is in accordance with approved plans.
B.
Notification.
(1)
Advance notice. It shall be the duty of the plumber
to give advance notice to the office of the Plumbing Inspector when
plumbing work is ready for test or inspection.
(2)
Plumber's responsibility. It shall be the duty of
the master plumber to make sure that the work will stand the test
prescribed before giving the above notification.
(3)
Retesting. If the Plumbing Inspector finds that the
work will not pass the test, the plumber shall be required to make
the necessary corrections, and the work shall then be resubmitted
for test or inspection.
C.
Material and labor for tests. The equipment, material,
power and labor necessary for the inspection and test shall be furnished
by the plumber.
D.
Test of interior leaders or downspouts. Leaders or
downspouts and branches within a building shall be tested by water
or air as per the State Code.
[Amended 3-18-2003 by Ord. No. 63-2003]
E.
Covering the work.
(1)
Prior to test. No plumbing system or part thereof
shall be covered until it has been inspected, tested and approved
as prescribed in this chapter.
(2)
Removal. If any plumbing system or part thereof is
covered before being regularly inspected, tested and approved, as
prescribed in this chapter, it shall be uncovered under the direction
of the Plumbing Inspector.
F.
Certificate of approval. Upon the satisfactory completion
and final test of the plumbing system, a certificate of approval shall
be issued by the Plumbing Inspector to the plumber to be delivered
to the owner. The regular use of the plumbing system is prohibited
until so approved and certified by the Plumbing Inspector.
G.
Test of defective plumbing. The drainage system of
any building, where there is reason to believe that it has become
defective, shall be subject to test or inspection.
H.
Inspection and test not required. No tests or inspections
shall be required where a plumbing system or part thereof is set up
for exhibition purposes and is not used for toilet purposes and is
not directly connected to a water supply or sewerage system.
A.
Defective fixtures. All installed fixtures found defective
or in an unsanitary condition shall be repaired, renovated, replaced
or removed upon written notice from the proper administrative authority.
B.
Temporary toilet facilities. Suitable toilet facilities
shall be provided for the use of workmen during the construction of
any building. These toilet facilities shall be maintained in a sanitary
condition.
C.
Defective plumbing. Any part of the plumbing system
found defective or in an unsanitary condition shall be repaired, renovated,
replaced or removed within five days upon written notice from the
authority having jurisdiction over plumbing.
D.
Repairs. None but licensed plumbers will be permitted
to alter, repair or make connections to any of the plumbing system,
building drain or building sewer of any building.
E.
Removal of nonconforming house sewers or drains. Whenever
any house sewer or drain connected with any public sewer or drain
becomes obstructed, broken or out of order, or in such condition as
to prevent the use of the house sewer or drain, or unfit for the purpose
of drainage, or where old tile, cement or other drainpipe that does
not conform to the provisions of this code is uncovered or exposed
for any reason, it shall be removed and replaced with material as
approved by the administrative authority. The owner, agent, occupant
or person having charge of any building, yard, lot of land or other
premises which are drained by said drain or house sewer shall, when
directed by the Inspector of Plumbing, remove, reconstruct, alter,
clean or repair said drain as condition of said drain may require.
F.
Construction of minor repairs. "Minor repairs," as
used in this subsection, shall mean repairs to leaks in drains, traps
or cocks, opening waste or supply pipes, traps or drains or repairing
broken fixtures or frozen pipes. Minor repairs shall not include the
doing of such work where connections to soil pipes, supply pipes,
wastepipes or vent pipes are disturbed or inside leader pipes are
used, nor shall it include the setting or replacing of fixtures.
G.
Certain sewer connections prohibited. No connection
through which it is designed to discharge offal, garbage, solid refuse
or other matter which might clog or stop the pipes shall be made with
the sewer system of the City or any of its branches nor shall anyone
discharge such matters into the sewer system.
H.
Unsanitary plumbing. Whenever, upon inspection, any
building or part thereof is found unfit for human habitation by reason
of defective plumbing or drainage system, the Department of Public
Works may require such building or part thereof to be vacated and
may cause to be posted in a conspicuous place therein a notice of
unsanitary condition and may order any person, firm or corporation
using or maintaining any such condition or responsible for the use
or maintenance thereof to discontinue the use of or maintenance thereof
or to repair, alter, change, remove or demolish the same as the Department
of Public Works may consider necessary for the proper protection of
life, health or property.
I.
Improper construction or use. The Department of Public
Works has the power to stop the construction or use of drains, sewers
and water mains not properly constructed or used or which are not
in accordance with plans already approved. They may condemn and order
the removal of any fixture or any plumbing and drainage that is defective
when found to be dangerous to health.
J.
Improvements ordered. The Department of Public Works
shall have the power to order changes or improvements in the existing
plumbing or drainage on any premises within a specified time when,
in its opinion, the requirements of health demand such changes or
improvements. Such order shall be issued to the owner, agent and/or
lessee in writing, and the order shall state the time within which
the work shall be completed and ready for inspection.
A.
Section 901.19i of the State Code was modified by
the following, by approval of the State Fire Prevention and Building
Code Council on March 19, 1986:
(1)
Minimum size of individual drain, trap and waste branches.
Minimum size of drain, trap or waste branches to individual fixtures
shall be in accordance with the sizes specified in the following table:
|
Fixture
|
Minimum Size of Trap and Branch
(inches)
|
Minimum Size of Fixture Drain
(inches)
| |
|---|---|---|---|
|
Bathtub (trap)
|
1 1/2
|
1 1/2
| |
|
Combination sink and laundry tray
|
2
|
2
| |
|
Dental unit
|
1 1/2
|
1 1/2
| |
|
Drinking fountain
|
1 1/2
|
1 1/2
| |
|
Floor drain
|
3
|
3
| |
|
Laundry tray
|
1 1/2
|
1 1/2
| |
|
Lavatory
|
1 1/2
|
1 1/2
| |
|
Shower stall
|
2
|
2
| |
|
Sink, dishwasher
|
1 1/2
|
2
| |
|
Sink, hotel or public
|
2
|
2
| |
|
Sink, kitchen, residence
|
2
|
2
| |
|
Sink, pantry or bar
|
1 1/2
|
2
| |
|
Sink, pot or scullery etc.
|
2
|
2
| |
|
Sink, service
|
2
|
2
| |
|
Sink, service (trap standard)
|
3
|
3
| |
|
Urinal, stall
|
2
|
2
| |
|
Urinal, wall
|
1 1/2
|
2
| |
|
NOTE: This table does not apply to fixtures
with integral traps.
| |||
(2)
Residential washing machines. All residential washing
machine standpipe trays shall be a minimum of two inches in diameter
and shall be to the full height of the back splash or a minimum of
42 inches, whichever is greater. The minimum size of a vent for a
residential washing machine shall be 1 1/2 inches.
B.
Section 902.7e of the State Code was modified by the
following, by approval of the State Fire Prevention and Building Code
Council on March 19, 1986:
(1)
Shutoff valves. Separate valves, always accessible,
shall be placed at the foot of each riser line and in multiple dwellings
or commercial buildings for each individual fixture or group of fixtures
controlled in each dwelling unit or group of fixtures in one room.
C.
Section 902.9e of the State Code was modified by the
following, by approval of the State Fire Prevention and Building Code
Council on March 19, 1986:
(1)
Size of supply pipes. Where two or more fixtures are
above the first floor, the risers shall be not less than 3/4
inch.
D.
Section 903.20a of the State Code was modified by
the following, by approval of the State Fire Prevention and Building
Code Council on March 19, 1986:
(1)
Sink waste pipes. Sink wastes shall not connect into
bath wastes but shall connect into a separate fitting in the main
soil or waste line.
E.
Section 904.6d of the State Code was modified by the
following, by approval of the State Fire Prevention and Building Code
Council on March 19, 1986:
(1)
Permitted locations and systems for DWV copper tube.
Type DWV copper tube shall be permitted in structures of all use group
occupancies for aboveground vent systems within structures only.
(a)
Copper water tube for drainage and venting.
Seamless copper water tube known as "Type M" may be used above ground
in all buildings and structures for installation on leaders, drainage,
waste, venting and water closet bends. It may not be used for installation
on urinal branches chemical wastes. Copper tubing for urinal branches
shall be at least as heavy as Type K. All tubing shall be clearly
marked or coded by the manufacturer, and installation shall have such
markings so positioned as to be readily identifiable. All connections,
offsets, turns or changes in direction on copper tubing installations
shall be made only with proper solder joint fittings, adaptors, converters
and appurtenances specifically approved for such use.
F.
Section 904.6i of the State Code was modified by the following by
approval of the State Fire Prevention and Building Code Council on
March 19, 1986:
[Amended 12-13-2016 by Ord. No. 252-2016]
(1)
Hubless cast-iron pipe.
(a)
Hubless cast-iron pipe shall be permitted for inside leaders
six stories and above when installed in compliance with manufacturer's
specifications.
[Amended 9-19-2017 by Ord. No. 170-2017]
(b)
Permitted locations for hubless cast-iron pipe. Hubless pipe
Specification No. AWWA Class 22 or stronger shall be permitted on
storm, soil, waste and vent piping above ground within the structure
for all use groups. All connections shall be made with stainless steel
corrugated coupling with an approved neoprene gasket and stainless
steel clamps. PVC pipe shall be permitted for storm piping, service
piping, waste and vent piping and potable water lines in buildings
that do not exceed six stories in height. PVC piping shall be installed
in strict compliance with manufacturer's specifications. PVC storm
piping shall be insulated as per manufacturer's installation guidelines
and heat traced in open garages and unheated spaces.
[Amended 9-19-2017 by Ord. No. 170-2017]
(c)
All installations of hubless pipe and fittings shall be supported
and secured so there will be no sagging or lateral movement and shall
be installed as per the manufacturer's specifications and acceptable
standards.
(d)
Hubless piping and PVC piping shall be supported and secured
by means of unistrut or similar type material and clamping device
and other such measures as to ensure a rigid piping installation.
Installation of PVC piping shall be installed in strict compliance
with manufacturer's installation guidelines.
(e)
Testing of all hubless pipe, PVC pipe and fittings shall be
limited to two floors or a height not to exceed 24 feet of head pressure.
G.
Sections 904.6d and 904.6g of the State Code were modified by the
following by approval of the State Fire Prevention and Building Code
Council on March 19, 1986:
[Amended 12-13-2016 by Ord. No. 252-2016]
(1)
Plastic pipe. Unless otherwise specifically permitted by the administrative
authority, the use of plastic piping and material shall be prohibited
for underground installations only. Change of use of residences in
which plastic pipe has been heretofore installed in compliance with
this code shall only be permitted upon removal of the plastic pipe
and fittings or at the discretion of the administrative authority.
H.
Part 1001 (including G.A.S.) of the State Code was
modified by the following by approval of the State Fire Prevention
and Building Code Council on March 19, 1986:
(1)
Installation of gas piping and gas appliance connections
in buildings (not applicable to undiluted liquefied petroleum gas).
(a)
Gas appliance installations.
[1]
All hereafter installed gas appliances and gas
appliance connections shall be installed in such a manner as not to
endanger the health, safety, lives, property and welfare of the person
or persons using the same or receiving the benefit thereof or of the
general public.
[2]
General. Under this caption appear the fundamental
standards which shall be observed during the installation of any gas
piping and gas appliance connections to assure safety. Responsibility
for observing these precautions so as not to create a physical injury
hazard to any person or property under ordinary circumstances shall
rest with the installing permit holder.
[3]
Scope. This code represents basic standards
governing the installation of gas piping and gas appliance connections
in buildings. These standards apply only to low-pressure [not in excess
of 1/2 pound per square inch] gas piping systems in buildings,
extending from the gas meter outlet to the inlet connections of appliances
and the installation of residential and commercial gas appliances
supplied through such systems by public utilities. They are intended
to cover the installation and tests of such systems for fuel gases,
such as natural gas and manufactured gas. They are not intended to
cover systems distributing undiluted liquefied petroleum gas. They
are also not intended to cover systems or portions of systems supplying
equipment engineered, designed and installed for specific manufacturing,
production, processing and power-generating applications, such as
large and high-pressure boilers, melting and treating furnaces, production
ovens, etc. For piping in gas-distribution systems, in gas-manufacturing
plants, in gas-compressing stations and in gas-processing plants,
refer to the latest edition of the Code for Pressure Piping and consult
the gas utility corporation.
(b)
COMBUSTIBLE MATERIAL
FLUE OR VENT CONNECTOR
GAS PIPING
GAS PIPING SYSTEM
GAS UTILITY CORPORATION
GAS VENT OR FLUES
HOUSE GAS PIPING
SERVICE PIPING
Definitions. For the purpose of this code, certain
terms, phrases, words and their derivatives shall be interpreted as
set out in this subsection:
Wall, floor, ceilings, shelves or other parts of a building
constructed of wood, wood lath and plaster, composition or paper.
(See Building Code.)
The pipe connecting an appliance with the flue or vent. This
corresponds to the smoke pipe used with solid or liquid fuels.
Any run of pipe or fittings that is used to convey fuel gas,
installed on any premises or in any building, but shall not include
any portion of the service piping from main to meter nor any piping
connection less than six feet in length between an existing gas outlet
and a gas appliance in the same room with the outlet.
Any arrangement of gas piping supplied by one meter.
The firm or corporation supplying either natural or manufactured
gas to the consumer within the limits of the City of New Rochelle.
A conduit or pipe, vertical or nearly so in direction, designed
to convey the products of combustion to the outside atmosphere. (See
Building Code.)
Any run of gas piping or fittings installed on any premises
or in any building on the outlet side of the gas meter, beginning
within 30 inches of the meter location or extending from gas pipes
anywhere beyond said location and ending at the capped or plugged
outlets ready to connect with gas fixtures or gas appliances, but
does not include the connection of the gas fixtures, gas appliances
or gas meter or any portion of the gas service piping from street
mains.
The piping between the street gas main and the gas meter
location.
(c)
License. Only those persons licensed to do plumbing
work under this code, the utility company, or those certified by the
utility company may install any service piping, gas piping or gas
appliances. The utility company or those certified by the utility
company may only install service piping to the meter for residential
work or to the building line for commercial work.
[Amended 6-15-2010 by Ord. No. 91-2010]
(d)
Permit.
[1]
It shall be unlawful for any person to install
or cause to be installed any service piping, gas piping, gas water
heater or other gas appliances without first obtaining a permit from
the Plumbing Inspector.
[2]
Permits for gas piping shall show the total
number of gas outlets to be provided for and such other information
as may be required by the Plumbing Inspector.
(e)
Inspections.
[1]
Upon completion of the installation of any gas
piping on the outlet side of the gas meter and/or gas water heater
and prior to the use thereof, the Plumbing Inspector shall be notified
that such piping and/or water heater is ready for inspection.
[2]
The Plumbing Inspector shall make the following
inspections and shall either approve that portion of the work as completed
or shall notify the permit holder wherein the same fails to comply
with this code:
[a]
Rough piping inspection. This inspection
shall be made after all gas piping authorized by the permit has been
installed and before any such piping has been covered or concealed
or any fixture or appliance has been attached thereto.
[b]
Pressure test. This inspection
will include a determination of the test of piping for tightness,
that gas piping installation shall stand a pressure of at least six
inches of mercury or of three pounds per square inch for a period
of not less than 10 minutes without showing any drop in pressure and
that the installation meets the requirements of this code. For welded
piping, the test pressure shall be 50 pounds per square inch and shall
be made using air only. All necessary apparatus for conducting either
method of pressure testing shall be furnished by the permit holder,
and the test shall be made in the presence of the Plumbing Inspector.
[c]
Test of piping for tightness. Before
any system of gas piping is finally put in service, it shall be carefully
tested by the permit holder to assure that it is gastight. Where any
part of the system is to be enclosed or concealed, this test shall
precede the work of closing in. To test for tightness, the piping
may be filled with city gas, air or inert gas, but not with any other
gas or liquid. In no case shall oxygen ever be used. The piping shall
stand a pressure of at least six inches of mercury, measured with
a manometer or slope gauge, for a period of not less than 10 minutes
without showing any drop in pressure.
[d]
Additional piping. In cases where
the work authorized by the permit consists of additional piping to
be installed on gas piping already connected to a gas meter, the foregoing
inspections may be waived. In this event, the Plumbing Inspector shall
require such inspections as he deems advisable in order to assure
himself that the work has been performed in accordance with the intent
of this code.
[e]
Final inspection. A final inspection
shall be made when all appliances are connected and all outlets capped,
the gas meter is installed and the following has been done by the
permit holder.
[f]
Turning on gas. Close all gas outlets
before turning gas under pressure into any piping. The permit holder
or gas utility corporation shall close all openings from which gas
can escape.
[g]
Checking for leakage with meter.
Immediately after turning gas into piping, the system shall be checked
to ascertain that no gas is escaping. This shall be done by the permit
holder or gas utility corporation by carefully watching the test dial
of the meter to determine whether gas is passing through the meter.
To assist in observing any movement of the test hand, wet a small
piece of paper and paste its edge directly over the center line of
the hand as soon as the gas is turned on. Allow five minutes for a
one-half-foot dial and proportionally longer for a larger dial in
checking for gas flow. This observation shall be made with the test
hand on the upstroke.
[h]
In case test hand does not move.
In case careful observation of the test hand for a sufficient length
of time reveals no movement, the pipe shall be purged (see provisions
of Subsection H(1)(e)[2][j], [k] and [l]) and a small gas burner turned
on and lighted and the hand of the test dial again observed. If this
dial hand now moves (as it should), it will show that the meter is
operating properly. If the test hand does not move or register the
flow of gas through the meter to the small burner, it is certain that
the meter is defective, and the gas shall be turned off and the gas
utility corporation notified.
[i]
In case meter test hand moves.
In case the test hand shows movement, all appliances or outlets supplied
through the meter shall be examined to see if they are turned off
and do not leak. If they are found tight, movement of the test hand
will indicate that there is a leak in the piping system. The meter
valve shall be turned off until the necessary repairs have been made,
after which the test specified in Subsection H(1)(e)[2][g] shall be
repeated.
[j]
Purging all gas lines. After the
piping has been checked, all piping receiving gas through the meter
shall be fully purged. A suggested method for purging the gas line
to an appliance is to disconnect the pilot line at the outlet of the
pilot valve. Under no circumstances shall a line be purged into the
combustion chamber of an appliance.
[k]
Light pilots. After the piping
has been sufficiently purged, all appliances shall be purged and the
pilots lighted. The installer shall assure himself that all piping
and appliances are fully purged before leaving the premises.
[l]
Purging large lines with inert
gas. Lines of four-inch iron pipe size or larger should be purged
with carbon dioxide, nitrogen or a mixture of the two. For a detailed
procedure, consult the gas utility corporation.
(f)
Certificate of inspection.
[1]
When the rough piping inspection has been made,
if the installation is found to comply with the provisions of this
code, a certificate of inspection shall be issued by the Plumbing
Inspector to the permit holder.
[2]
A copy of the certificate of such rough piping
inspection shall be issued to the gas utility corporation supplying
gas to the premises.
[3]
It shall be unlawful for any utility or person
furnishing gas to set or cause to be set or connected any gas meter
or meters with any gas piping until such certificate of inspection,
as herein provided, shall have been issued.
(g)
Authority to connect. It shall be unlawful to
turn on or to connect gas in or on any premises unless all outlets
are properly and securely connected to gas appliances or capped or
plugged with screw-joint fittings.
(h)
Authority to disconnect.
[1]
The Plumbing Inspector shall order the gas turned
off or disconnected, and the gas utility corporation supplying gas
to the premises is hereby authorized to turn the gas off or disconnect
any gas piping and/or appliance which shall be found not to conform
to the requirements of this code or which may be found defective and
in such condition as to endanger life or property.
[2]
Where such disconnection has been made, a notice
shall be attached by the gas utility corporation to such gas piping
and/or appliance, which shall state that the same has been turned
off or disconnected, together with the reasons therefor.
[3]
Such attached notice shall not be removed nor
shall the gas piping and/or appliance be turned on or reconnected
until the defective condition has been corrected.
[4]
It shall be unlawful to remove or disconnect
any gas fixture and/or appliance without capping or plugging with
a screw-joint fitting the outlet from which said gas fixture and/or
appliance was removed.
[5]
All gas outlets to which gas fixtures and/or
appliances are not connected shall be left capped or plugged with
a screw-joint fitting, gastight, on any gas piping system which has
been installed, altered, extended or repaired.
(i)
General precautions.
[1]
Turn gas off. All gas piping or gas appliance
installations shall be performed with the gas turned off to eliminate
hazards from leakage of gas.
[2]
Notification of interrupted service. It shall
be the duty of the installing permit holder when the gas supply is
to be turned off to notify all affected consumers.
[3]
Before turning gas off. Before turning off the
gas at the meter for the purpose of installation, repair, replacement
or maintenance of piping or appliances, all burner and pilot valves
on the premises supplied with gas through the meter shall be turned
off and the meter test hand observed for a sufficient length of time
to ascertain that there is no gas passing through the meter. Where
there is more than one meter on the premises, precaution shall be
exercised to assure that the proper meter is turned off.
[4]
Checking for gas leaks. No matches, candles,
flames or other sources of ignition shall be employed to check for
gas leakage from piping or an appliance. Gas leakage shall be checked
with a soap and water solution. See provisions of Subsection H(1)(e)[2][c],
[f], [g], [h] and [i].
[5]
Use of lights. Artificial illumination used
in connection with a search for gas leakage shall be restricted to
electric hand flashlights (preferably of the safety type) or approved
safety lamps. In searching for leaks, electric switches should not
be operated. If electric lights are already turned on, they should
not be turned off.
[6]
Working alone. An individual shall not work
alone in any situation where accepted working practice dictates that
two or more men are necessary to perform the work safely.
[7]
Handling of liquid from drips. Liquid which
is removed from a drip in existing gas piping shall be handled with
proper precautions and shall not be left on the consumer's premises.
[8]
No smoking. When working on piping which contains
or has contained gas, smoking shall not be permitted.
[9]
Handling flammable liquids. Flammable liquids
used by the permit holder shall be handled with proper precautions
and shall not be left within the premises from the end of one working
day to the beginning of the next.
[10]
Work interruptions. When interruptions in work
occur, the system shall be left in a safe and satisfactory condition.
(j)
Gas piping installation.
[1]
Piping plan. The applicant for a permit shall,
before proceeding with the installation of a gas piping system, furnish
the Plumbing Inspector with a piping sketch or plan showing the proposed
location of the piping as well as the size of different branches.
[2]
Piping shall provide for proper meter location.
[a]
A meter location shall be provided
for the building or premises to be served, and the location shall
be such that the meter connections are easily accessible in order
that the meter may be read or changed. Location, space requirements,
dimensions and type of installation shall be acceptable to the gas
utility corporation.
[b]
Piping at multiple-meter installations
shall be plainly marked by a metal tag or other permanent means installed
by the plumber, designating the part of the building being supplied.
[3]
Interconnections. Where two or more meters are
installed on the same premises but supply separate consumers, the
piping systems shall not be interconnected on the outlet side of the
meters.
(k)
Size of piping to gas appliances.
[1]
Size of piping. Piping shall be of such size
and so installed as to provide a supply of gas sufficient to meet
the maximum demand without undue loss of pressure between the meter
and the appliance or appliances. The size of gas pipe depends upon
the following factors:
[2]
Pressure loss. It is recommended that the pressure
loss in any piping system from the gas meter to any appliance at the
maximum probable gas demand not exceed a three-tenths-inch water column.
[3]
Gas consumption. The volume of gas to be provided for (in cubic feet per hour) shall be determined, whenever possible, directly from the manufacturer's Btu ratings of the appliances which will be installed and the heating value of the gas to be used. In case the ratings of the appliances to be installed are not known, Table 27[1] is given to show the approximate consumption of average
appliances of certain types in Btu's per hour.
[a]
To obtain the cubic feet per hour
of gas required, divide the total Btu input of all appliances by the
average Btu heating value per cubic foot of the gas. The average Btu
per cubic foot of the gas in the area of the installation may be obtained
from the gas utility corporation.
[1]
Editor's Note: Table 27 is included at the end of this chapter.
[4]
Capacity of pipe. Capacities of different sizes and lengths of pipe in cubic feet per hour with a pressure drop of 0.3 inch of water column for gas of 0.60 specific gravity are shown in Table 28.[2] In using this table, no allowance for an ordinary number
of fittings is necessary.
[2]
Editor's Note: Table 28 is included at the end of this chapter.
[5]
Diversity factor. The diversity factor is the
percentage of the total connected load in use at any one time and
is an important factor in determining the correct pipe size to be
used in multifamily dwellings. It is dependent upon the number and
kinds of gas appliances being installed. Consult the gas utility corporation
for the diversity factor to be used.
[6]
Extensions. Extensions to existing piping shall conform to Table 28. Existing piping shall be converted to the proper size of pipe where necessary. In no case shall extensions be made to existing pipe which is smaller than permitted by Table 28.[4]
[4]
Editor's Note: Table 28 is included at the end of this chapter.
(l)
Materials.
[1]
Acceptable piping material.
[a]
Gas piping in buildings shall be
wrought iron or steel pipe complying with the American Standard for
Wrought Steel and Wrought Iron Pipe, ASA B36.10-1950. The connecting
of pipe by welding is permissible. Underground gas service piping
installations shall be permitted to be installed in plastic pipe,
in compliance with the New York State Building Codes, to the meter
for residential work (one- and two-family residences only) and to
the building line for commercial work.
[Amended 6-15-2010 by Ord. No. 91-2010]
[b]
Threaded pipe fittings (except
stopcocks or valves) shall be malleable iron or steel when used with
wrought iron or steel pipe. Where approved by the gas utility corporation,
cast-iron fittings in sizes four inches and larger may be used with
wrought iron and steel pipe, and copper or brass pipe in iron pipe
sizes assembled with threaded fittings of the same materials may be
used with gases not corrosive to such materials.
[c]
Gas piping and fittings shall be
clear and free from cutting burrs and defects in structure or threading
and shall be thoroughly brushed and scale blown.
[d]
Defects in pipe or fittings shall
not be repaired. When defective pipe or fittings are located in a
system, the defective pipe or fittings shall be replaced.
[2]
Pipe coating. When in contact with material
exerting a corrosive action, piping and fittings coated with a corrosion-resisting
material shall be used.
[3]
Use of old pipe. Pipe, fittings, valves, etc.,
removed from any existing installation shall not be again used until
they have been thoroughly cleaned, inspected and ascertained to be
equivalent to new material.
[4]
Joint compounds. Joint compounds (pipe dope)
shall be applied sparingly and only to the male threads of the joints.
Such compounds shall be resistant to the action of liquefied petroleum
gas-air mixtures.
(m)
Pipe threads.
[1]
Specifications for pipe threads. Pipe and fitting
threads shall comply with the American Standard for Pipe Threads,
ASA B2.1-1945, American Standard Taper Pipe Threads.
[2]
Damaged threads. Pipe with threads which are
stripped, chipped, corroded or otherwise damaged shall not be used.
If a weld opens during the operation of cutting or threading, that
portion of the pipe shall not be used.
(n)
Concealed piping.
[1]
Minimum size. No pipe smaller than standard
one-half-inch iron pipe size shall be used in any concealed location.
[2]
Piping in partitions. Concealed piping shall
be located in hollow rather than in solid partitions.
[3]
Piping in floors. Piping in solid floors such
as concrete shall be laid in channels in the floor suitably covered
to permit access to the piping with a minimum of damage to the building.
Piping in contact with earth or other material which may corrode the
piping shall be protected against corrosion in an approved manner.
Piping shall not be laid in cinders.
[4]
Connections in original installations. When
installing piping which shall be concealed, unions, running threads,
right and left couplings, bushings and swing joints made by combinations
of fittings shall not be used.
[5]
Reconnections. When necessary to insert fittings
in piping which has been installed in a concealed location, the piping
shall be reconnected by the use of a ground joint union with the nut
center punched to prevent loosening by vibration.
(o)
Installation of piping.
[1]
Drips, grading and protection from freezing,
as provided for in this section, shall apply only when other than
a dry gas is distributed and climatic conditions make such requirements
necessary.
[2]
Building structure. The building structure shall
not be weakened by the installation of any gas piping. Before any
beams or joists are cut or notched, special permission should be obtained
from the Building Official.
[3]
Piping to be graded. All piping shall be graded
not less than 1/4 inch in 15 feet to prevent traps. All horizontal
lines shall grade to risers and from risers to the meter or to the
appliance.
[4]
Supporting pipe. Gas piping shall not be supported
by other piping but shall be supported to maintain proper grade with
pipe hooks, metal pipe straps, bands or hangers suitable for the size
of pipe and of proper strength and quality at proper intervals so
that the piping cannot be moved accidentally from the installed position.
The spacing of supports in piping installations shall not be greater
than the following:
[5]
Protect against freezing. Gas piping shall be
protected against freezing temperatures. When piping must be exposed
to wide ranges or sudden changes in temperatures, special care shall
be taken to prevent stoppages.
[6]
Overhanging rooms. Where there are overhanging
kitchens or other rooms built beyond the foundation walls in which
gas appliances are installed, care shall be taken to avoid placing
the piping where it will be exposed to low temperatures (40º
F. or below for manufactured gas) or to extreme changes of temperatures.
In such cases, the piping shall be brought up inside the building
proper and run around the sides of the room in the most practical
manner.
[7]
Do not bend pipe. Pipe shall not be bent. Fittings
shall be used when making turns in gas piping.
[8]
Provide drip where necessary. A drip shall be
provided at any point in the line of pipe where condensate may collect.
Where condensation is excessive, a drip shall be provided at the outlet
of the meter. This drip shall be so installed as to constitute a trap
wherein an accumulation of condensate will shut off the flow of gas
before it will run back into the meter.
[9]
Location and size of drips. All drips shall
be installed only in such locations that they will be readily accessible
to permit cleaning or emptying. A drip shall not be located where
the condensate is likely to freeze. The size of any drip used shall
be determined by the capacity and the exposure of the piping which
drains to it and in accordance with the recommendations of the gas
utility corporation.
[10]
Use tee. A tee fitting with the bottom outlet
capped instead of an ell fitting shall be used at the bottom of any
riser to catch any dirt or other foreign materials. (See Figure 17.[6])
[6]
Editor's Note: Figure 17 is included at the end of this chapter.
[11]
Avoid clothes chutes, etc. Gas pipe inside any
building shall not be run in or through an air duct, clothes chute,
chimney or flue, ventilating duct, dumbwaiter or elevator shaft.
[12]
Cap all outlets. Each outlet, including a valve
or cock outlet, shall be securely closed gastight with a threaded
iron plug or cap immediately after installation and shall be left
closed until an appliance is connected thereto. Likewise, when an
appliance is removed from an outlet and the outlet is not to be used
again immediately, it shall be securely closed gastight. In no case
shall the outlet be closed with tin caps, wooden plugs, corks, etc.
[13]
Location of outlets. The unthreaded portion
of piping outlets shall extend at least one inch through finished
ceilings and walls and, when extending through floors, shall be not
less than two inches above them. The outlet fitting or the pipe shall
be securely fastened. Outlets shall not be placed behind doors. Outlets
shall be far enough from floors and walls to permit the use of a pipe
wrench of suitable size without straining or bending the pipe.
[14]
Prohibited devices. No device shall be placed
inside the gas pipe or fittings that will reduce the cross-sectional
area or otherwise obstruct the free flow of gas.
[15]
Branch pipe connection. All branch outlet pipes
shall be taken from the top or sides of horizontal lines and not from
the bottom. Where a branch outlet is placed on a main supply line,
before it is known what size of pipe will be connected to it, the
outlet shall be of the same size as the line which supplies it.
[16]
Piping between buildings. Where piping is run
from one building to another, it shall be adequately protected against
freezing temperatures and shall be graded toward a suitable drip.
[a]
Where manufactured gas is distributed, underground piping shall be one size larger than that specified in Table 27,[7] but in no case less than 1 1/4 inches.
[7]
Editor's Note: Table 27 is included at the end of this chapter.
[b]
Where local conditions require
it, underground piping shall be protected against corrosion by coating
or by other suitable means.
[17]
Lines supplying gas pilots for oil burners.
Lines supplying gas pilots for oil-burning appliances shall be accessible,
not less than 1/2 inch standard pipe size, and shall not be exposed
to extreme temperatures.
(p)
Appliance connections to building piping.
[1]
Connecting nonportable appliances. Nonportable
appliances, such as central heating, water heating and similar equipment,
shall be connected to the gas piping with rigid pipe.
[2]
Connecting domestic ranges, hot plates, clothes
dryers, room heaters, refrigerators and similar equipment. Domestic
gas ranges, hot plates, clothes dryers, room heaters, refrigerators
and similar equipment shall be connected to the gas piping with rigid
pipe, approved semirigid tubing or approved appliance connectors of
flexible metal tubing and fittings. When a semirigid tubing connector
or a connector of flexible metal tubing and fittings is used, it shall
connect to an outlet in the same room as the appliance. The length
of the connector should not exceed four feet. The connector shall
be installed so as to be protected against physical damage.
[3]
Use of gas hose. The connection of an appliance
with any type of gas hose is prohibited, except when used with laboratory,
shop or ironing equipment that requires mobility during operation.
Such connections shall have the shutoff or stopcock installed at the
connection to the building piping. Only listed gas hose shall be used.
Listed gas hose shall be used only in accordance with the terms of
its listing. Gas hose shall not be used where it is likely to be subject
to excessive temperatures, above 125º F.
[4]
Permissible length and location. Where gas hose
is used, it shall be of the minimum practical length, but not to exceed
four feet, and shall not extend from one room to another nor pass
through any walls, partitions, ceilings or floors. Under no circumstances
shall gas hose be concealed from view or used in a concealed location.
[5]
Gas piping.
[a]
The gas utility corporation shall
be consulted before the installation of a gas appliance to determine
if the piping, service and metering equipment is adequate. If changes
are required in the piping, service pipe and meter, the gas utility
corporation shall provide specifications covering the work to be performed
in making these changes.
[b]
Gas piping shall be of such size
and so installed as to provide a supply of gas sufficient to meet
the maximum demand without undue loss of pressure between the meter
and the appliance or appliances.
(q)
Appliance installation, general.
[1]
Appliances and accessories to comply with standard
requirements. All gas appliances and accessories installed for domestic
or commercial use shall:
[a]
Be listed by a nationally recognized
testing agency;
[b]
Comply with applicable American
Standard Approval or Listing Requirements covering safe operation,
substantial and durable construction and acceptable performance; or
[c]
Be acceptable to the gas utility
corporation.
|
Such compliance may be determined
by the presence on the appliance or accessory of a label of a nationally
recognized testing agency, qualified and equipped to perform the tests
necessary to determine such compliance and maintaining an adequate
periodic inspection of current models, and whose label on the appliance
or accessory states that it complies with national safety requirements.
| |
|
In cases where no applicable American
Standard Approval or Listing Requirements have been developed for
a given class of appliance or accessory, approval of the proper administrative
authority shall be obtained before the appliance or accessory is installed.
|
[2]
Listed appliances and accessories. The word
"listed' used in connection with appliances and accessories throughout
the present code refers to appliances and accessories which are shown
in a list published by an approved nationally recognized testing agency,
qualified and equipped for experimental testing and maintaining an
adequate periodic inspection of current production of listed models,
and whose listing states either that the appliance or accessory complies
with nationally recognized safety requirements or has been tested
and found safe for use in a specified manner.
[3]
Type of gas. It shall be determined that the
appliance has been designed for use with the gas to which it will
be connected. No attempt shall be made to convert the appliance from
the gas specified on the rating plate for use with a different gas
without consulting the manufacturer of the appliance for complete
instructions.
[4]
Verification of pipe size. When connecting additional appliances to a piping system, the existing piping shall be checked to determine if it has adequate capacity. [See Subsection H(1)(k).] If inadequate, the existing system shall be enlarged as required or a separate line of adequate capacity shall be run from the meter to the appliance.
[5]
Permissible temperatures on combustible materials.
See Building Code and NFPA 54.
[6]
Air for combustion. Where appliances are installed
in a confined space or building of unusually tight construction or
in unconfined spaces, such as a full basement, with a building of
unusually tight construction, the gas utility corporation or the Plumbing
Inspector shall be consulted for proper method of ventilation to supply
air for combustion.
[7]
Venting. Appliances shall be vented in accordance with the provisions of Subsection H(1)(v) of this section and the Building Code.
[8]
Flammable vapors. Gas appliances shall not be
installed in any location where flammable vapors are likely to be
present, unless the design, operation and installation are such as
to eliminate the possible ignition of the flammable vapors.
[9]
Accessibility. Every appliance shall be located
so that it will be readily accessible for operation and servicing.
[10]
Avoid strain on piping. Gas appliances shall
be adequately supported and so connected to the piping as not to exert
undue strain on the connections.
[11]
Extra device or attachment. No device or attachment
shall be installed on any appliance which may in any way impair the
combustion of gas.
[12]
Combination of appliances. Any combination of
appliances, attachments or devices used together in any manner shall
comply with the standards which apply to the individual appliance.
[13]
Use of air or oxygen under pressure. Where air
or oxygen under pressure is used in connection with the gas supply,
effective means shall be provided to prevent air or oxygen from passing
back into the gas piping. The gas utility corporation shall be consulted
for details.
[14]
Venting of pressure regulators. Gas appliance
pressure regulators requiring access to the atmosphere for successful
operation shall be equipped with a vent pipe leading to the outer
air or into the combustion chamber adjacent to a constantly burning
pilot, unless constructed or equipped to limit the escape of gas from
the vent opening in the event of diaphragm failure to not more than
1.0 cubic feet per hour of a gas of a specific gravity of 0.6 at seven
inches of water column pressure. In case of vents leading to the outer
air, means shall be employed to prevent water from entering this pipe
and also to prevent stoppage of it by insects and foreign matter.
In case of vents entering the combustion chamber, the vent shall be
so located so that the escaping gas will be readily ignited from the
pilot flame and the heat liberated will not adversely affect the operation
of the thermal element. The terminus of the vent shall be securely
held in a fixed position relative to the pilot flame. For manufactured
gas, a flame arrester in the vent line may also be necessary.
(r)
Water heaters.
[1]
Location. Water heaters shall be located as
close as practicable to the flue or vent. They should be so located
as to provide short runs of piping to fixtures.
[2]
Connections. Water heaters shall be connected
in a manner to permit observation, maintenance and servicing.
[3]
Closed systems. No water heater shall be installed
in a closed system of water piping unless an approved water-pressure-relief
valve is provided. (See entire Section 902.6 of the State Code.)
[4]
Size of water-circulating pipe. The size of
the water-circulating piping, in general, shall conform to the size
of the water connections of the heater.
[5]
Sediment drain. A suitable water valve or cock
through which sediment may be drawn off or the tank emptied shall
be installed at the bottom of the tank.
[6]
Anti-siphoning devices. Means acceptable to
the proper administrative authority shall be provided to prevent siphoning
in any boiler or tank to which any circulating water heater is attached.
A cold-water tube with a hole near the top is accepted for this purpose.
[7]
Prohibited installations. Water heaters shall
not be installed in bathrooms, bedrooms or any occupied rooms normally
kept closed.
(s)
Gas-fired unit heaters.
[1]
Garage installation. Unit heaters installed
in garages for more than three motor vehicles or in airplane hangars
shall be of a type listed for such use and shall be installed at least
eight feet above the floor.
(t)
Clothes dryers.
[1]
Public use. Gas-fired clothes dryers installed
for multiple-family use shall be equipped with approved automatic
pilots.
(u)
Gas refrigerators.
[1]
Gas refrigerators shall be provided with adequate
clearances for ventilation at the top and back. They shall be installed
in accordance with the manufacturer's instructions. If such instructions
are not available, at least two inches shall be provided between the
back of the refrigerator and the wall and at least a twelve-inch clearance
above the top.
(v)
Flue or vent connectors.
[1]
Materials. The material used for the flue or
vent connector shall be resistant to corrosion and shall be of sufficient
thickness to withstand damage. Where a question arises as to the suitability
of a particular material, the proper administrative authority shall
be consulted.
[2]
Avoid bends. The flue or vent connector shall
be installed so as to avoid short turns or other constructional features
which would create excessive resistance to the flow of flue gases.
[3]
Pitch. The flue or vent connector shall maintain
a pitch or rise from the appliance to the flue or vent. A rise as
great as possible, at least 1/4 inch to the foot (horizontal
length), shall be maintained. The horizontal run shall be free from
any dips or sags.
[4]
Provide vertical run. Wherever sufficient headroom
is available, appliances having a horizontal flue outlet shall be
provided with a vertical run or flue or vent connector before the
horizontal run. To minimize frictional resistance in the connector,
it is recommended that forty-five-degree elbows are used.
[5]
Length. The horizontal run of the connector
shall be as short as possible, and the appliance shall be located
as near the flue or vent as practicable. The maximum length of horizontal
run shall not exceed 75% of the height of the flue or vent.
[6]
Support. Flue or vent connectors shall be securely
supported.
[7]
Clearance.
[a]
Flue or vent connectors shall be located in such a manner that continued operation of the appliance will not raise the temperature of surrounding combustible construction more than 90º F. above normal room temperature when measured with mercury thermometers or conventional bead-type thermocouples. Where flue or vent connectors pass through partitions of combustible construction, ventilated thimbles shall be used. Minimum clearances from combustible construction to flue or vent connectors for listed appliances are shown in Table 31.[8] For unlisted appliances, the minimum clearance shall be
nine inches from metal flue or vent connectors, except for incinerators,
where the minimum clearance shall be 18 inches.
[8]
Editor's Note: Table 31 is included at the end of this chapter.
[8]
Use of thimbles. Flue or vent connectors, other
than Type B (see Building Code), shall not pass through any combustible
walls or partitions unless they are guarded at the point of passage
by ventilated metal thimbles not smaller than the following:
[a]
For listed appliances except floor
furnaces and incinerators: four inches larger in diameter than the
flue or vent connector, unless there is a run of not less than six
feet of flue or vent connector in the open, between the draft hood
outlet and the thimble, in which case the thimble may be two inches
larger in diameter than the flue or vent connector.
[b]
For listed floor furnaces and all
unlisted appliances except incinerators: six inches larger in diameter
than the flue or vent connector.
[c]
For incinerators: 12 inches in
diameter than the flue or vent connector.
[9]
Size. The flue or vent connector shall not be
smaller than the size of the flue collar or the size of the outlet
of the draft hood supplied by the manufacturer of a gas-designed appliance.
Where the appliance has more than one flue outlet, and in the absence
of the manufacturer's specific instructions, the flue or vent connector
shall equal the combined area of the flue outlets for which it acts
as a common connector to the flue or vent.
[10]
Dampers.
[a]
No manually operated damper shall
be placed in any flue or vent connector, except as noted below. Fixed
baffles ahead of draft hoods are not classified as dampers.
[b]
A manually operated or barometric
damper may be installed in the flue or vent connector of a gas incinerator
when recommended by the manufacturer. The manual damper shall be so
constructed that it will not close off more than 80% of the cross-sectional
area of the flue or vent connector. Such a damper will be supplied
with a listed incinerator if the manufacturer recommends its use,
and the installation instructions accompanying the incinerator will
include complete information for installation of the damper.
[11]
Fireplace. A flue or vent connector shall not
be connected to a chimney flue having a fireplace opening unless the
opening is permanently sealed.
[12]
Check chimney. Before connecting a flue or vent
connector, the flue or vent shall be examined to ascertain that it
is properly constructed, clear and will freely conduct the products
of combustion to the outer air.
[13]
Draft woods. Every vented appliance, except
incinerators, dual oven-type combination ranges and units designed
for power burners or for forced venting, shall have a draft hood.
If the draft hood is not a part of the appliance or supplied by the
appliance manufacturer, it shall be supplied by the installer and,
in the absence of other instructions, shall be the same size as the
appliance flue collar. (For suggested general dimensions for such
draft hoods, see Tables 33, 34 and 35 with accompanying Figures 18,
19 and 20 respectively.[10])
[a]
Installation of draft hoods. Where
the draft hood is a part of the appliance or is supplied by the appliance
manufacturer, it shall be installed without alteration in accordance
with the manufacturer's instructions. In the absence of manufacturer's
instructions, the draft hood shall be attached to the flue collar
of the appliance or as near to the appliance as conditions permit.
In no case shall a draft hood be installed in a false ceiling, in
a different room or in any manner that will permit a difference in
pressure between the draft hood relief opening and the combustion
air supply.
[b]
Position of draft hood. A draft
hood shall be installed in the position for which it was designed
with reference to the horizontal and vertical planes and shall be
so located that the relief opening is not obstructed by any part of
the appliance or adjacent construction.
[c]
Special draft hoods. Where the
installer must supply a draft hood of special design, advice of the
gas utility corporation or the proper administrative authority as
to its use should be secured.
[10]
Editor's Note: Tables 33, 34 and 35 and Figures
18, 19 and 20 are included at the end of this chapter.
[14]
Size. The flue or vent to which the flue or
vent connector is connected shall be of a size not less than specified
in Figure 21.[11] In no case shall the area be less than the area of three-inch
diameter pipe. When more than one appliance vents into a flue or vent,
the flue or vent area shall be not less than the area of the largest
flue or vent connector plus 50% of the areas of the additional flue
or vent connectors. Any shaped flue or vent may be used, provided
that its flue gas venting capacity is equal to the capacity of round
pipe for which it is substituted.
[11]
Editor's Note: Figure 21 is included at the end of this chapter.
[15]
Height. The flue or vent should extend high
enough above the building or other neighboring obstruction so that
wind from any direction will not strike the flue or vent from an angle
above horizontal. Unless the obstruction is of great magnitude, it
is usual experience that a flue or vent extended at least two feet
above flat roofs or two feet above the highest part of wall parapets
and peaked rods within 30 feet will be reasonably free from downdrafts.
[16]
Chimney entrance. In entering a chimney flue,
the connection shall be above the extreme bottom to avoid stoppage.
Means shall be employed which will prevent the flue or vent connector
from entering so far as to unduly restrict the space between its end
and the opposite wall of the chimney. A thimble or slip joint shall
be used to facilitate removal of the flue or vent connector for cleaning.
[17]
Cleanouts. Cleanouts shall be of such construction
that they will remain tightly closed when not in use.
[18]
Venting into flues used for other fuels. An
automatically controlled gas appliance connected to a flue which also
serves equipment for the combustion of solid or liquid fuel shall
be equipped with an automatic pilot. A gas appliance flue or vent
connector and a smoke pipe from an appliance burning another fuel
may be connected into the same flue through separate openings or may
be connected through a single opening if joined by a wye fitting located
as close as practical to the flue. If two or more openings are provided
into one flue, they should be at different levels.
[19]
Flue connecting two or more gas appliances.
In order to promote better draft where more than one gas appliance
flue or vent connector is connected to a flue or vent, the connections
should be made at different levels. Two or more gas appliances may
be vented through a common flue or vent connector when necessary,
if joined by wye fittings as close as practical to the flue or vent,
and provided that the size of the common flue or vent is sufficient
to accommodate the total volume of flue gases. Wye fittings shall
be made so that the angle at which the flue or vent connectors intersect
is as small as possible and should not exceed 45º.
(w)
Gas shutoff valves.
[1]
Accessibility of gas valves. Main gas shutoff
valves controlling several piping systems shall be placed an adequate
distance from each other so that they will be easily accessible for
operation and shall be installed so as to be protected from injury.
Valves shall be plainly marked with a metal tag by the installer so
that the, piping systems supplied through them can be re identified.
Shutoff valves shall be installed at every point where safety, convenience
of operation and maintenance demands.
[2]
Shutoff valves for multiple house lines. In
multiple-tenant buildings supplied through a master meter or where
meters are not readily accessible from the appliance location, an
individual shutoff valve for each apartment and for each separate
house line shall be provided at a convenient point of general accessibility.
[3]
Shutoff valve for gas appliance. Every gas appliance
shall have an approved shutoff valve on the supply line.
(x)
Gas piping containing unmeasured gas. If working
on gas piping containing unmeasured gas, see gas utility corporation
regulations.
[Amended 3-18-2003 by Ord. No. 63-2003]
An offense against the provisions of this chapter
shall be punishable by a fine of not less than $250 and not more than
$1,000 or by imprisonment for not more than 15 days, or both. Each
and every day that a violation continues shall be a separate and additional
violation.
