All plumbing, heating and central air-conditioning work shall be performed by or under the direct supervision of a plumber and/or heating and air-conditioning contractor duly licensed by and/or qualified to work in the Town of North Hempstead. The plumber and/or heating and air-conditioning contractor having such supervision of the work to be done shall be directly and personally responsible for compliance with this Article, even though he does not personally perform the work.
No plumbing, heating or air-conditioning work of any kind shall be performed unless a written application, describing the proposed work in detail, has been submitted to the Building Inspector and/or the Village Clerk, unless the required fee has been paid, unless the provisions of this chapter have otherwise been complied with and unless a permit therefor shall have been issued by the Building Inspector. The application shall be in the form prescribed by the Village Board.
[Amended 6-26-1979 by L.L. No. 4-1979; 3-14-1983 by L.L. No. 2-1983]
A. 
Residential zones; location. No central air-conditioning condenser for use in a one-family residential dwelling shall be installed or situated at an exterior location on the premises unless it shall be in a rear or side yard. In the Residential A District such condenser shall be installed at least 15 feet from any such side or rear property line; in the Residential B District, such condenser shall be installed at least 13 feet from any such side property line and at least 20 feet from any such rear property line.
B. 
Prohibited noise levels. No condenser shall be installed which shall have a noise level in excess of the maximum sound rating number (SRN) established by the Air Conditioning and Refrigeration Institute (ARI) for the tonnage of such unit. The maximum size of any air-conditioning condenser permitted under this chapter for one-family residential dwelling use shall be five tons; in no event shall any condenser have a noise level in excess of SRN 20.
C. 
Residential zones; screening. Every condenser that shall be installed at an exterior location on a one-family residential dwelling shall be screened from view by evergreen plantings at least four feet high, spaced not more than three feet apart on all exposed sides of the unit. Such planting shall be of Canadian hemlock or such other similar evergreen variety and form compatible for use for the purposes of screening. Every application for a permit to install central air-conditioning shall indicate thereon the form, nature and method of screening to be used.
D. 
Other zones; location and screening. In the Commercial and Apartment Zones, every exterior central air-conditioning condenser shall be located on the main roof of the building in which the unit is installed. All such roof-mounted units shall be located as near as possible to the geometric center of the roof and shall be screened on all sides from public view by a permanent durable wood or metal enclosure that totally obscures the unit from public view. Such enclosure shall be maintained to preserve its purpose and shall not be removed except for service or replacement of the screen or of the unit. Every application for a permit to install roof-mounted equipment shall specify the exact location at which the equipment will be installed and a detailed specification of the proposed enclosure.
E. 
Remedy of defects. In the event that any air-conditioning unit, regardless of location, at any time, produces or reaches a noise level proscribed by this section, the owner or other person in control of the premises shall cure such violation within 15 days after written notice of such violation. Upon the failure by such person to effect such noise reduction, the Village Board of Trustees may require removal of the offending unit, together with such other action as it may deem necessary to enforce compliance, and nothing herein contained shall be deemed to preclude any other remedy available to the Trustees, or the imposition of any fine by a court of competent jurisdiction after due process of law.
F. 
New structures; ducts. Every one-family residential structure, the erection of which is commenced after the date of adoption of this section, shall have erected, installed and constructed within it air-conditioning ductwork sufficient to provide adequate air-conditioning from a central system of air-conditioning for the structure. Such ductwork shall be required notwithstanding that a central air-conditioning system is not included in the then existing plans for the structure.
G. 
General standards. In addition to the foregoing, every condenser shall be installed on a six-inch reinforced concrete slab or a two-and-one-half-inch reinforced pre-cast slab; no exposed pipes or electric wires shall be visible on the exterior of any building; all interior wiring shall be armored cable (BX) or pipe conduit; unit fan blades shall be enclosed by a safety guard; an approved exterior switch shall be installed near the unit; every air handler shall be installed in the attic, hung from rafters using approved metal strips; air ducts shall be metal of a minimum 26 gauge; a certified statement from a professional engineer or registered architect shall be submitted with the application to the effect that the installation meets all requirements of the New York State Energy Conservation Construction Code.
Applications for water, sewer and sprinkler connections shall be made in accordance with the requirements of the Manhasset-Lakeville Water District and the Belgrave Sewer District, or their successors, and the required fees shall be paid to said districts. Copies of said application and the forms filed with said districts shall also be filed simultaneously with the Village Clerk, together with any Village-prescribed fee.
[Added 11-19-1980 by L.L. No. 3-1980]
All buildings and structures shall provide for adequate drainage of waters from rain, snow and other precipitation by providing gutters and leaders or the like, which facility for drainage shall be connected to dry wells, and no such gutter, leader or other drainage facility shall be suffered to release water or other spillage in any manner other than into dry wells.