Int. No. 1169-A
By Council Members Williams, Richards, Kallos and Rosenthal (by request of the Mayor)
A Local Law to amend the administrative code of the city of New York, in relation to conforming the New York city energy conservation code to the New York state energy code with amendments unique to construction in the city and repealing section 28-1001.2 in relation thereto
Be it enacted by the Council as follows:
Section 1. Statement of findings and purpose. The New York State Energy Conservation Construction Code (the “New York State Energy Code”) is promulgated by the State Fire Prevention and Building Code Council pursuant to Article 11 of the New York State Energy Law. In accordance with Article 11, the New York City Energy Conservation Code is stricter than the New York State Energy Code. The purpose of this local law is to conform the New York City Energy Conservation Code to recent changes in the New York State Energy Code with local law amendments unique to construction in the City.
§ 2. Section 28-1001.1.1 of the administrative code of the city of New York, as added by local law number 4 for the year 2015, is amended to read as follows:
§28-1001.1.1 Definition. As used in this chapter, the term “New York State Energy Code” means the New York State Energy Conservation Construction Code (the “New York State Energy Code”), constituting part 1240 of title 19 of the New York codes, rules and regulations (19 NYCRR Part 1240), and the publications incorporated by reference in such part, promulgated on [November 18, 2014] April 6, 2016, by the State Fire Prevention and Building Code Council pursuant to Article 11 of the New York State Energy Law.
§ 3. Section 28-1001.2 of the administrative code of the city of New York is REPEALED and a new section 28-1001.2 is added to read as follows:
§28-1001.2 New York city amendments to the New York state energy code. The following New York city amendments to the New York state energy code are hereby adopted as set forth in sections 28-1001.2.1 and 28-1001.2.2.
§28-1001.2.1 New York city amendments to 19 NYCRR Part 1240.
1240.6 Exceptions.
Delete Exception (b) in its entirety and replace with a new Exception (b) to read as follows:
(b) Certain alterations. The New York State Energy Code shall not apply to the following alterations of existing buildings, provided that the alteration will not increase the energy usage of the building:
1. Storm windows installed over existing fenestration.
2. Glass-only replacements in an existing sash and frame, provided that the U-factor and the solar heat gain coefficient (SHGC) shall be equal to or lower than before the glass replacement.
3. Alterations, renovations or repairs to roof/ceiling, wall or floor cavities, including spaces between furring strips, provided that such cavities are insulated to the full existing cavity depth with insulation having a minimum nominal value of R-3.0/inch (R-2.0/cm).
4. Alterations, renovations or repairs to walls and floors in cases where the existing structure is without framing cavities and no new framing cavities are created.
5. Reroofing where neither the sheathing nor the insulation is exposed. Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reroofing shall be insulated either above or below the sheathing.
6. Replacement of existing doors that separate conditioned space from the exterior shall not require the installation of a vestibule or revolving door, provided, however, that an existing vestibule that separates a conditioned space from the exterior shall not be removed.
7. An alteration that replaces less than 20 percent of the luminaires in a space, provided that such alteration does not increase the installed interior lighting power.
8. An alteration that replaces only the bulb and ballast within the existing luminaires in a space, provided that such alteration does not increase the installed interior lighting power.
§28-1001.2.2 New York city amendments to commercial and residential chapters of the New York state energy code, including amendments to the 2013 edition of Energy Standard for Buildings Except Low-Rise Residential Buildings ("ASHRAE 90.1 -2013"), as amended by Part 2 of the 2016 Supplement.
Chapter 1 [CE] and Chapter 1 [RE]
Delete Chapter R1 and Chapter C1 in their entirety and replace with a new Chapter 1 to read as follows:
CHAPTER 1
ADMINISTRATION
INTRODUCTORY STATEMENT
The New York City Energy Conservation Code (“NYCECC”) is comprised of the New York State Energy Code (“NYSEC”) with amendments as enacted into law by the New York City Council.
The NYCECC is divided into provisions relevant to commercial buildings and provisions relevant to residential buildings as follows:
1. The provisions of the NYCECC for commercial buildings are reflected in the state publications incorporated by reference in 19 NYCRR section 1240.4, as amended by sections 28-1001.2.1and 28-1001.2.2 of the Administrative Code of the city of New York. Such state publications include (i) Chapters 1 [CE], 2 [CE], 3 [CE], 4 [CE], 5 [CE] and 6 [CE] of the 2015 edition of the International Energy Conservation Code (the “2015 IECC”), as amended by Part 1 of the publication entitled the 2016 Supplement to the New York State Energy Conservation Construction Code (the “2016 Energy Code Supplement”) (ii) the July 2014 edition of Energy Standard for Buildings Except Low-Rise Residential Buildings (“ASHRAE 90.1-2013”), as amended by Part 2 of the 2016 Energy Code Supplement; and (iii) reference standards incorporated by reference in 19 NYCRR section 1240.4(c).
2. The provisions of the NYCECC for residential buildings are reflected in the state publications incorporated by reference in 19 NYCRR section 1240.5, as amended by sections 28-1001.2.1 and 28-1001.2.2 of the Administrative Code of the city of New York. Such state publications include (i) Chapters 1 [RE], 2 [RE], 3 [RE], 4 [RE], 5 [RE] and 6 [RE] of the 2015 edition of the International Energy Conservation Code (the “2015 IECC”), as amended by Part 3 of the publication entitled the 2016 Supplement to the New York State Energy Conservation Construction Code (the “2016 Energy Code Supplement”); and (ii) the referenced standards incorporated by reference in 19 NYCRR section 1240.5(b), as amended by Part 3 of the 2016 Energy Code Supplement.
SECTION ECC 101
SCOPE AND GENERAL REQUIREMENTS
101.1 General. These provisions shall be known and cited as the “New York City Energy Conservation Code,” “NYCECC” or “ECC,” and are referred to herein as “this code.” All section numbers in this code shall be deemed to be preceded by the designation “ECC.” Administration and enforcement of this code shall be in accordance with Title 28 of the Administrative Code.
101.1.1 Titles.
The 2015 edition of the International Energy Code shall be known as the “2015 IECC.”
The 2013 edition of the Energy Standard for Buildings Except Low-Rise Residential Buildings shall be known as “ASHRAE 90.1-2013.” All references in this code to ASHRAE 90.1-2013 shall be deemed to be references to ASHRAE 90.1-2013 (AS AMENDED).
The 2016 Energy Code Supplement to the New York State Energy Conservation Construction Code shall be known as the “2016 Supplement.”
The New York State Energy Conservation Construction Code along with the New York City amendments to the New York State Energy Conservation Construction Code shall be known collectively as the “New York City Energy Conservation Code.”
101.2 Scope. This code applies to commercial buildings and residential buildings, as defined in Chapter C2 and Chapter R2 of this code, and the buildings’ sites, associated systems and equipment.
101.2.1 Occupancy classifications. For determination of occupancy classification and use within this code, a comparable occupancy classification shall be made to the New York City Building Code.
101.2.2 Reconciliation with New York State Energy Conservation Construction Code. Whenever any provision of the New York State Energy Conservation Construction Code provides for a more stringent requirement than imposed by this code, the more stringent requirement shall govern.
101.2.3 Other laws. The provisions of this code shall not be deemed to nullify any federal, state or local law, rule or regulation relating to any matter as to which this code does not provide.
101.3 Intent. This code shall regulate the design and construction of buildings for the use and conservation of energy over the life of each building. This code is intended to provide flexibility to permit the use of innovative approaches and techniques to achieve this objective. This code is not intended to abridge safety, health or environmental requirements contained in other applicable codes. To the fullest extent feasible, use of modern technical methods, devices and improvements that tend to minimize consumption of energy without abridging reasonable requirements for the safety, health and security of the occupants or users of buildings shall be permitted. As far as may be practicable, the improvement of energy conservation construction practices, methods, equipment, materials and techniques shall be encouraged.
101.4 Applicability. The provisions of this code shall apply to the construction of buildings. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall govern.
101.4.1 Mixed occupancy. Where a building includes both commercial and residential occupancies, each occupancy shall be separately considered and shall meet the applicable provisions of Chapters C2, C3, C4 and C5 for commercial, and Chapters R2, R3, R4, and R5 for residential.
101.5 Compliance. Commercial buildings shall comply with the provisions of this code applicable to commercial buildings in Chapters C2, C3, C4, and C5. Residential buildings shall comply with the provisions of this code applicable to residential buildings in Chapters R2, R3, R4, and R5.
101.5.1 Compliance materials. Compliance with the provisions of this code can be demonstrated through the use of computer software deemed acceptable by the New York State Secretary of State, and the commissioner.
101.5.2 Demonstration of compliance. For a building project application or applications required to be submitted to the department, the following documentation, as further described in the rules of the department, shall be required in order to demonstrate compliance with this code.
101.5.2.1 Professional statement. Any registered design professional or lead energy professional filing an application or applications for a new building or alteration project shall provide on a signed and sealed drawing a statement of compliance or exemption in accordance with the rules of the department.
101.5.2.2 Energy analysis. For any application that is not exempt from this code and for which a work permit is required in accordance with Section 28-105 of the Administrative Code, an energy analysis shall be provided on a sheet or sheets within the construction drawing set. The energy analysis shall identify the compliance path followed, demonstrate how the design complies with this code and be in a format as prescribed in the rules of the department. The energy analysis shall meet the requirements of this code for the entire project. Projects that utilize trade-offs among disciplines shall use DOE2-based energy modeling programs or other energy-modeling programs as prescribed in the rules of the department and shall be signed and sealed by a lead energy professional.
101.5.2.3 Supporting documentation. For any application that is not exempt from this code and for which a work permit is required in accordance with Section 28-105 of the Administrative Code, supporting documentation shall be required in the approved construction drawings. See Section 103 for further requirements.
SECTION ECC 102
ALTERNATE MATERIALS, METHOD OF CONSTRUCTION, DESIGN OR INSULATING SYSTEMS
102.1 General. This code is not intended to prevent the use of any material, method of construction, design or insulating system not specifically prescribed herein, provided that such material, method of construction, design or insulating system has been approved by the commissioner as (1) meeting the intent of this code, (2) achieving energy savings that are equivalent to or greater than would be achieved using prescribed materials, methods of construction, designs or insulating systems, and (3) meeting the requirements of Article 113 of Chapter 1 of Title 28 of the Administrative Code and the remaining New York City Construction Codes.
SECTION ECC 103
CONSTRUCTION DOCUMENTS
103.1 General. Construction documents shall be prepared in accordance with the provisions of Chapter 1 of Title 28 of the Administrative Code, the New York City Construction Codes, including this code, and the rules of the department.
103.2 Supporting documentation on construction documents. Supporting documentation shall include those construction documents that demonstrate compliance with this code.
103.2.1 Intent. Supporting documentation shall accomplish the following:
1. Demonstrate conformance of approved drawings to the energy analysis for every element and value of the energy analysis;
2. Demonstrate conformance of approved drawings to other mandatory requirements of this code, including, but not limited to, sealing against air leakage from the building envelope and from ductwork as applicable, insulation of ducts and piping as applicable, mechanical and lighting controls with devices shown and operational narratives for each, and additional requirements as set forth in this section;
3. Identify required progress inspections in accordance with the scope of work, this code, the Administrative Code, the New York City Building Code, and the rules of the department; and
4. Comply with other requirements as may be set forth in the rules of the department.
103.2.2 Detailed requirements. Construction documents shall be drawn to scale upon suitable material. Electronic media documents are permitted to be submitted in accordance with department procedures. Construction documents for a project shall be fully coordinated and of sufficient clarity to indicate the location, nature and extent of the work proposed, and show in sufficient detail pertinent data and features of the building, building systems and equipment as herein governed. Details shall include, but are not limited to, as applicable, insulation materials and their R-values; fenestration U-factors and SHGCs; area-weighted U-factor and SHGC calculations; mechanical system design criteria; mechanical and service water heating system and equipment, types, sizes and efficiencies; economizer description; equipment and systems controls; fan motor horsepower and controls; duct sealing, duct and pipe insulation and location; lighting fixture schedule with wattages and control narrative; location of daylight zone on floor plans (as applicable), and air sealing details. The building’s thermal envelope shall be represented on the construction documents.
103.3 Examination of documents. In accordance with Article 104 of Chapter 1 of Title 28 of the Administrative Code, the department shall examine or cause to be examined the accompanying construction documents and shall ascertain by such examinations whether the construction indicated and described is in accordance with the requirements of this code and other pertinent laws, rules and regulations.
103.4 Changes during construction. For changes during construction refer to Section 28-104.3 of the Administrative Code.
SECTION ECC 104
INSPECTIONS
104.1 General. Except as otherwise specifically provided, inspections required by this code or by the department during the progress of work may be performed on behalf of the owner by an approved agency. All inspections shall be performed at the sole cost and expense of the owner. Refer to Article 116 of Chapter 1 of Title 28 of the Administrative Code for additional provisions relating to inspections. In addition to any inspections otherwise required by this code or the rules of the department, the following inspections shall be required:
1. Progress inspections. Progress inspections shall be performed in accordance with the rules of the department.
2. Final inspection. Refer to Article 116 of Chapter 1 of Title 28 of the Administrative Code and the rules of the department.
3. Issuance of Certificate of Compliance. Refer to Section 28-116.4.1 of the Administrative Code.
The requirements of Section 104.1 shall not be read to prohibit the operation of any heating equipment or appliances installed to replace existing heating equipment or appliances serving an occupied portion of a structure provided that a request for inspection of such heating equipment or appliances has been filed with the department not more than 48 hours after such replacement work is completed, and before any portion of such equipment or appliances is concealed by any permanent portion of the structure.
104.1.1 Approved agencies. Refer to Article 114 of Chapter 1 of Title 28 of the Administrative Code and the rules of the department.
104.1.2 Inspection of prefabricated construction assemblies. Prior to the issuance of a work permit for a prefabricated construction assembly having concealed mechanical work, the department shall require the submittal of an evaluation report by the manufacturer or approved agency on each prefabricated construction assembly, indicating the complete details of the mechanical system, including a description of the system and its components, the basis upon which the system is being evaluated for energy use, test results and similar information, and other data as necessary for the commissioner to determine conformance to this code.
104.1.2.1 Test and inspection records. Required test and inspection records shall be made available to the commissioner at all times during the fabrication of the mechanical system and the erection of the building; or such records as the commissioner designates shall be filed.
104.2 Testing. Envelope, heating, ventilating, air conditioning, service water heating, lighting and electrical systems shall be tested as required in this code and in accordance with Sections 104.2.1 through 104.2.3. Except as otherwise required in this code or in the rules of the department, tests shall be made by the permit holder and witnessed by an approved agency.
104.2.1 New, altered, extended, renovated or repaired systems. New envelope, heating, ventilating, air conditioning, service water heating, lighting and electrical installations or systems, and parts of existing systems that have been altered, extended, renovated or repaired, shall be tested as prescribed herein or in the rules of the department to disclose leaks and defects.
104.2.2 Apparatus, instruments, material and labor for tests. Apparatus, instruments, material and labor required for testing an envelope, heating, ventilating, air conditioning, service water heating, lighting and/or electrical installation or system or part thereof shall be furnished by the permit holder.
104.2.3 Reinspection and testing. Where any work or installation does not pass an initial test or inspection, the necessary corrections shall be made so as to achieve compliance with the New York City Construction Codes, including this code. The work or installation shall then be reinspected or retested by the approved agency.
104.3 Sign-off of completed work. In addition to the requirements of Article 116 of Chapter 1 of Title 28 of the Administrative Code, Section 103.4 of this code and other requirements for sign-off, the project team shall either certify that construction does not differ from the last approved energy analysis or provide a whole-project as-built energy analysis and supporting documents, signed and sealed, for approval prior to sign-off. The as-built energy analysis and supporting documents shall reflect the materials, equipment and values actually used in the construction of the project, and shall demonstrate compliance of the constructed project with this code. Such signed and sealed documents may be accepted with less than full examination by the department based on the professional certification of the registered design professional.
104.4 Temporary connection. The commissioner shall have the authority to allow the temporary connection of an installation to the sources of energy for the purpose of testing the installation or for use under a temporary certificate of occupancy.
SECTION ECC 105
REFERENCED STANDARDS
105.1 Referenced standards. The standards referenced in Chapters C2, C3, C4, and C5 of the New York City Energy Conservation Code shall be those that are listed in Chapter C6 of the New York City Energy Conservation Code, and in the rules of the department and such standards shall be considered part of the requirements of the commercial provisions of the New York City Energy Conservation Code to the prescribed extent of each such reference. The standards referenced in Chapters R2, R3, R4, and R5, of the New York City Energy Conservation Code shall be those that are listed in Chapter R6 of the New York City Energy Conservation Code, and in the rules of the department and such standards shall be considered part of the requirements of the residential provisions of the New York City Energy Conservation Code to the prescribed extent of each such reference. Where differences occur between provisions of this code and the referenced standards, the provisions of this code shall apply. Refer to Article 103 of Chapter 1 of Title 28 of the Administrative Code for additional provisions relating to referenced standards.
CHAPTER C2
DEFINITIONS
SECTION C201
GENERAL
Section C201.3- Revise Section C201.3 to read as follows:
C201.3 Terms defined in other codes. Terms that are not defined in this code but are defined in the New York City Construction Codes, New York City Fire Code, or New York City Electrical Code shall have the meanings ascribed to them in those codes.
SECTION C202
GENERAL DEFINITIONS
Delete the definitions of “2015 International Fire Code (As Amended),” “2015 International Fuel Gas Code (As Amended),” “2015 International Mechanical Code (As Amended),” “2015 International Plumbing Code (As Amended),” “2015 International Property Maintenance Code (As Amended),” and “2015 International Residential Code (As Amended).”
Section C202 - Revise the definition of “Approved” after the definition of “Alteration” to read as follows:
APPROVED. See Section 28-101.5 of the Administrative Code.
Section C202 - Revise the definition of “Approved agency” after the definition of “Approved,” to read as follows:
APPROVED AGENCY. See Section 28-101.5 of the Administrative Code.
Section C202 - Revise the definition of “ASHRAE 90.1-2013 (AS AMENDED)” to read as follows:
ASHRAE 90.1-2013 (AS AMENDED). ASHRAE 90.1-2013, as amended by Part 2 of the 2016 Energy Code Supplement with revisions as set forth in Appendix CA of this code.
Section C202 - Add a new definition of “Authority having jurisdiction” after the definition of “ASHRAE 90.1-2013, (AS AMENDED)” to read as follows:
AUTHORITY HAVING JURISDICTION. The commissioner or the commissioner’s designee.
Section C202 - Revise the definition of “Building site” to read as follows:
BUILDING SITE. A contiguous area of land that is under the ownership or control of one entity.
Section C202 - Revise the definition of “Code official” after the definition of “Climate Zone,” to read as follows:
CODE OFFICIAL. The commissioner or the commissioner’s designee.
Section C202 - Add a new definition of “Electrical design load” after the definition of “Economizer, water,” to read as follows:
ELECTRICAL DESIGN LOAD. The electrical load that feeders and branch circuits are required to support pursuant to the relevant provisions of the New York City Electrical Code for the category of equipment loads being supported.
Section C202 - Delete the definition of “Energy code” after the definition of “Energy Analysis”.
Section C202 - Add a new definition of “Grade plane” after the definition of “General purpose electric motor (subtype II),” to read as follows:
GRADE PLANE. For this code, a reference plane representing the average of finished ground level adjoining the building at exterior walls. Where the finished ground level slopes away from the exterior walls, the reference plane shall be established by the lowest points within the area between the building and the lot line or, where the lot line is more than 6 feet (1829 mm) from the building, between the building and a point 6 feet (1829 mm) from the building.
Section C202 - Add a new definition of “High-Efficacy Lamps” after the definition of “Heated Slab,” to read as follows:
HIGH-EFFICACY LAMPS. Compact fluorescent lamps, T-8 or smaller diameter linear fluorescent lamps, or lamps with a minimum efficacy of:
1. 60 lumens per watt for lamps over 40 watts;
2. 50 lumens per watt for lamps over 15 watts to 40 watts; and
3. 40 lumens per watt for lamps 15 watts or less.
Section C202 - Add a new definition of “Lead energy professional” after the definition of “Labeled,” to read as follows:
LEAD ENERGY PROFESSIONAL. The registered design professional who signs and seals the energy analysis for an entire project. Such individual may be the same registered design professional who signs and seals the design drawings for the same project.
Section C202 - Add a new definition of “Networked guest room control system” after the definition of “Nameplate Horsepower” to read as follows:
NETWORKED GUEST ROOM CONTROL SYSTEM. A control system, accessible from the hotel/motel front desk or other central location, that is capable of identifying reserved rooms according to a timed schedule, and is capable of controlling HVAC in each hotel/motel guest room separately.
Section C202 - Add new definitions of “Professional certification” and “Project” after the definition of "Powered roof/wall ventilators," to read as follows:
PROFESSIONAL CERTIFICATION. See Section 28-101.5 of the Administrative Code.
PROJECT. A design and construction undertaking comprised of work related to one or more buildings and the site improvements. A project is represented by one or more plan/work applications, including construction documents compiled in accordance with Section 107 of the New York City Building Code, that relate either to the construction of a new building or buildings or to the demolition or alteration of an existing building or buildings. Applications for a project may have different registered design professionals and different job numbers, and may result in the issuance of one or more permits.
Section C202 - Delete the definition of “Uniform Code.”
CHAPTER C3
GENERAL REQUIREMENTS
SECTION C301
CLIMATE ZONES
Section C301.1 General.
Section C301.1 - Delete Section C301.1 in its entirety and replace with a new Section C301.1 to read as follows:
C301.1 General. For projects in the City of New York, Climate Zone 4A shall be used in determining the applicable requirements from Chapter C4.
Table C301.1 Climate zones, moisture regimes, and warm-humid designations by state, county and territory.
Delete Table C301.1 in its entirety.
Section C301.2 Warm humid counties.
Section C301.2 - Delete Section C301.2 in its entirety.
Section C301.3 International climate zones.
Section C301.3 - Delete Section C301.3 in its entirety.
Table C301.3(1) International climate zone definitions.
Delete Table C301.3(1) in its entirety.
Table C301.3(2) International climate zone definitions.
Delete Table C301.3(2) in its entirety.
Section C301.4 Tropical climate zone.
Section C301.4 - Delete Section C301.4 in its entirety.
SECTION C303
MATERIALS, SYSTEMS AND EQUIPMENT
Section C303.2 Installation.
Section C303.2 - Revise Section C303.2 to read as follows:
C303.2 Installation. Materials, systems and equipment shall be installed in accordance with (i) the manufacturer’s installation instructions and (ii) the applicable provisions of the New York City Construction Codes.
CHAPTER C4
COMMERCIAL ENERGY EFFICIENCY
SECTION C401
GENERAL
Section C401.2 Application.
Section C401.2 - Delete Item 1 and replace with a new Item 1 to read as follows:
1. ASHRAE Compliance Path: The requirements of ASHRAE 90.1-2013.
Section C401.2 - Delete Item 3 and replace with a new Item 3 to read as follows:
3. Performance Compliance Path: The requirements of Section C407.
Section C401.2.1 Application to replacement fenestration products.
Section C401.2.1 - Revise Section C401.2.1 to read as follows:
C401.2.1 Application to replacement fenestration products. Where some portion or all of an existing fenestration unit is replaced with a new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the applicable requirements for U-factor and SHGC in Table C402.4.
Exception: An area-weighted average of the U-factor of replacement fenestration products being installed in the building for each fenestration product category listed in Table C402.4 shall be permitted to satisfy the U-factor requirements for each fenestration product category listed in Table C402.4. Individual fenestration products from different product categories listed in Table C402.4 shall not be combined in calculating the area-weighted average U-factor.
SECTION C402
BUILDING ENVELOPE REQUIREMENTS
Section C402.1 General (Prescriptive).
Section C402.1 - Revise Item 1 to read as follows:
1. The opaque portions of the building thermal envelope shall comply with the specific insulation requirements of Section C402.2 and the thermal requirements of either the R-value-based method of Section C402.1.3; the U-, C-and F-factor-based method of Section C402.1.4; or the component performance alternative of Section C402.1.5. When the total area of penetrations from equipment listed in Table C403.2.3(3) exceeds 1 percent of the opaque above-grade wall area, the building thermal envelope shall comply with the U-, C-and F-factor-based method of Section C402.1.4.
Section C402.1.3 Insulation component R-value-based method.
Section C402.1.3 - Revise the first sentence of Section C402.1.3 to read as follows:
Building thermal envelope opaque assemblies shall meet the requirements of Sections C402.2 and C402.4 based on the climate zone specified in Chapter C3.
Section C402.1.4.2 Thermal resistance of mechanical equipment penetrations.
Section C402.1.4.2 - Add a new Section C402.1.4.2 to read as follows:
C402.1.4.2 Thermal resistance of mechanical equipment penetrations.
When the total area of penetrations from mechanical equipment listed in Table C403.2.3(3) exceeds 1 percent of the opaque above-grade wall area, the mechanical equipment penetration area shall be calculated as a separate wall assembly with a default U-factor of 0.5.
Exception: Where mechanical equipment has been tested in accordance with testing standards approved by the department, the mechanical equipment penetration area may be calculated as a separate wall assembly with the U-factor as determined by such test.
Section C402.2.4 Floors.
Section C402.2.4 - Revise Item 1 under Exceptions to read as follows:
1. The floor framing cavity insulation or structural slab insulation shall be permitted to be in contact with the top side of sheathing or continuous insulation installed on the bottom side of floor assemblies where combined with insulation that meets or exceeds the minimum R-value in Table C402.1.3 for “Metal framed” or “Wood framed and other” values for “Walls, Above Grade” and extends from the bottom to the top of all perimeter floor framing or floor assembly members.
Section C402.2.6 Fireplaces.
Section C402.2.6 - Delete the Section number and replace to read as follows:
Section C402.2.7
Section C402.2.7 - Revise the second paragraph of Section C402.2.7 to read as follows:
New wood-burning fireplaces that are designed to allow an open burn and new wood-burning fireplace units that are designed to allow an open burn shall be provided with a source of outdoor combustion air as required by the fireplace construction provisions of the New York City Construction Codes, as applicable.
Section C402.4.2 Minimum skylight fenestration area.
Section C402.4.2 - Revise Item 5 under Exception to read as follows:
5. Spaces where the total area minus the area of daylight zones adjacent to vertical fenestration is less than 2,500 square feet (232 m2), and where the lighting is controlled according to Section C405.2.3.
Section C402.4.2.1 Lighting controls in daylight zones under skylights.
Section C402.4.2.1 - Revise Section C402.4.2.1 to read as follows:
C402.4.2.1 Lighting controls in daylight zones under skylights. Daylight responsive controls complying with Section C405.2.3.1 shall be provided to control all electric lights within daylight zones under skylights.
Section C402.5.1 Air barriers.
Section C402.5.1 - Add a new Section C402.5.1.3 to read as follows:
C402.5.1.3 Air barrier testing. New buildings of a certain size must comply with the following requirements:
1. New buildings 25,000 square feet (2322.6 m2) and greater, but less than 50,000 square feet (4645.2 m2), and less than or equal to 75 feet (22.86 m) in height must show compliance through testing in accordance with ASTM E 779 and department rules.
2. New buildings 50,000 square feet (4645.2 m2) and greater, shall test or inspect each type of unique air barrier joint or seam in the building envelope for continuity and defects, as per an Air Barrier Continuity Plan developed by a registered design professional and department rules.
3. Rules governing air barrier testing promulgated by the department.
Section C402.5.3 Rooms containing fuel-burning appliances.
Section C402.5.3 - Revise Item 2 under the Exceptions to read as follows:
2. Fireplaces and stoves complying with Sections 901 through 905 of the New York City Mechanical Code and Section 2111.13 of the New York City Building Code.
Section C402.5.4 Doors and access opening to shafts, chutes, stairways, and elevator lobbies.
Section C402.5.4 - Revise Item 1 and Item 2 under the Exceptions to read as follows:
1. Door openings required to comply with Section 715 or 715.3 of the New York City Building Code.
2. Doors and door openings required to comply with UL 1784 by the New York City Building Code.
Section C402.5.7 Vestibules.
Section C402.5.7 - Revise Item 4 under the Exceptions to read as follows:
4. Doors that open directly from a space less than 3,000 square feet (278.7 m2) in area, in buildings less than 75 feet (22.86 m) in height, and doors that open directly from a space less than 1,000 square feet (92.9 m2) in area, in buildings 75 feet (22.86 m) and greater in height.
Section C402.5.7 - Renumber Item 6 under the Exceptions as Item 7 and add a new Item 6 to read as follows:
6. Doors used primarily to facilitate vehicular movement or material handling and adjacent personnel doors.
7. Doors that have an air curtain with a velocity of not less than 6.56 feet per second (2 m/s) at the floor that have been tested in accordance with ANSI/AMCA 220 and installed in accordance with the manufacturer’s instructions. Manual or automatic controls shall be provided that will operate the air curtain with the opening and closing of the door. Air curtains and their controls shall comply with Section C408.2.3.
SECTION C403
BUILDING MECHANICAL SYSTEMS
Section C403.2 Provisions applicable to all mechanical systems (Mandatory).
Section C403.2 - Delete the reference to Section C403.2.16 and replace with the reference to Section C403.2.18.
Section C403.2.1 Calculation of heating and cooling loads.
Section C403.2.1 - Revise the first sentence of Section C403.2.1 to read as follows:
Design loads associated with heating, ventilating and air conditioning of the building shall be determined in accordance with ANSI/ASHRAE/ACCA Standard 183 or by an approved equivalent computational procedure using the design parameters specified in Chapter C3.
Section C403.2.3 HVAC equipment performance requirements.
Section C403.2.3 - Revise the first sentence of Section C403.2.3 to read as follows:
Equipment shall meet the minimum efficiency requirements of Tables C403.2.3(1), C403.2.3(2), C403.2.3(3), C403.2.3(4), C403.2.3(5), C403.2.3(6), C403.2.3(7), C403.2.3(8), C403.2.3(9), C403.2.3(11), and C403.2.3(12) when tested and rated in accordance with the applicable test procedure.
Table C403.2.3(3) MINIMUM EFFICIENCY REQUIREMENTS: ELECTRICALLY Operated Packaged Terminal Air Conditioners, Packaged Terminal Heat Pumps, Single-Package Vertical Air Conditioners, Single-Package Vertical Heat Pumps, Room Air Conditioners, and Room Air-Conditioner Heat PumpS
Delete Table C403.2.3(3) in its entirety and replace with a new Table C403.2.3(3) to read as follows:
TABLE C403.2.3(3)
Minimum Efficiency Requirements: Electrically Operated Packaged Terminal Air Conditioners, Packaged Terminal Heat Pumps, Single-Package Vertical Air Conditioners, Single-Package Vertical Heat Pumps, Room Air Conditioners, and Room Air-Conditioner Heat PumpS
|
Equipment Type |
Size Category |
Subcategory or Rating Condition |
Minimum Efficiency |
Test Procedure |
|
PTAC (cooling mode) standard size |
All capacities |
95°F db outdoor air |
14.0 - (0.300 × Cap/1000)c EER |
AHRI 310/380 |
|
PTAC (cooling mode) nonstandard size |
All capacities |
95°F db outdoor air |
10.9 - (0.213 × Cap/1000)c EER |
|
|
PTHP (cooling mode) standard size |
All capacities |
95°F db outdoor air |
14.0 - (0.300 × Cap/1000)c EER |
|
|
PTHP (cooling mode) nonstandard size |
All capacities |
95°F db outdoor air |
10.8 - (0.213 × Cap/1000)c EER |
|
|
PTHP (heating mode) standard size |
All capacities |
________ |
3.7 - (0.052 × Cap/1000)cCOPH |
|
|
PTHP (heating mode) nonstandard size |
All capacities |
________ |
2.9 - (0.026 × Cap/1000)cCOPH |
|
|
SPVAC (cooling mode) |
< 65,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
AHRI 390 |
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
|
|
|
≥ 135,000 Btu/h and < 245,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
|
|
SPVHP (cooling mode) |
< 65,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
|
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
|
|
|
≥ 135,000 Btu/h and < 245,000 Btu/h |
95°F db/75°F wb outdoor air |
10.0 EER |
|
|
SPVHP (heating mode) |
< 65,000 Btu/h |
47°F db/43°F wb outdoor air |
3.0 COPH |
|
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
47°F db/43°F wb outdoor air |
3.0 COPH |
|
|
|
≥ 135,000 Btu/h and < 245,000 Btu/h |
47°F db/43°F wb outdoor air |
3.0 COPH |
|
|
SPVAC (cooling mode), nonweatherized space constrained |
< 30,000Btu/h |
95°F db/75°F wb outdoor air |
9.2 EER |
AHRI 390 |
|
|
> 30,000 Btu/h and < 36,000 Btu/h |
95°F db/75°F wb outdoor air |
9.0 EER |
|
|
SPVHP (cooling mode) , nonweatherized space constrained |
< 30,000 Btu/h |
95°F db/75°F wb outdoor air |
9.2 EER |
|
|
|
> 30,000 Btu/h and < 36,000 Btu/h |
95°F db/75°F wb outdoor air |
9.0 EER |
|
|
SPVHP (heating mode) , nonweatherized space constrained |
< 30,000Btu/h |
47°F db/43°F wb outdoor air |
3.0 COPH |
|
|
|
> 30,000 Btu/h and < 36,000 Btu/h |
47°F db/43°F wb outdoor air |
3.0 COPH |
|
|
Room air conditioners, with louvered sides |
< 6,000 Btu/h |
_____ |
11.0 CEER |
10 CFR Part 430 |
|
|
≥ 6,000 Btu/h and < 8,000 Btu/h |
_____ |
11.0 CEER |
|
|
|
≥ 8,000 Btu/h and < 14,000 Btu/h |
_____ |
10.9 CEER |
|
|
|
≥ 14,000 Btu/h and < 20,000 Btu/h |
_____ |
10.7 CEER |
|
|
|
≥ 20,000 Btu/h and < 24,000 Btu/h |
_____ |
9.4 CEER |
|
|
|
≥ 25,000 Btu/h |
_____ |
9.0 CEER |
|
|
|
< 6,000 Btu/h |
_____ |
10.0 CEER |
10 CFR Part 430 |
|
|
≥ 6,000 Btu/h and < 8,000 Btu/h |
_____ |
10.0 CEER |
|
|
Room air conditioners, without louvered sides |
≥ 8,000 Btu/h and < 11,000 Btu/h |
_____ |
9.6 CEER |
|
|
|
≥ 11,000 Btu/h and < 14,000 Btu/h |
_____ |
9.5 CEER |
|
|
|
≥ 14,000 Btu/h and < 20,000 Btu/h |
_____ |
9.3 CEER |
|
|
|
≥ 20,000 Btu/h |
_____ |
9.4 CEER |
|
|
Room air conditioner heat pumps, with louvered sides |
< 20,000 Btu/h |
_____ |
9.8 CEER |
10 CFR Part 430 |
|
|
≥ 20,000 Btu/h |
_____ |
9.3 CEER |
|
|
Room air conditioner heat pumps, without louvered sides |
< 14,000 Btu/h |
_____ |
9.3 CEER |
10 CFR Part 430 |
|
|
≥ 14,000 Btu/h |
_____ |
8.7 CEER |
|
|
Casement-only |
All capacities |
_____ |
9.5 CEER |
10 CFR Part 430 |
|
Casement-slider |
All capacities |
_____ |
10.4 CEER |
|
Table C403.2.3(8) MINIMUM EFFICIENCY REQUIREMENTS: HEAT REJECTION EQUIPMENT
Table C403.2.3(8) - Revise footnotes g and h in Table C403.2.3(8) to read as follows:
g. Cooling towers shall comply with the minimum efficiency listed in the table for that specific type of tower with the capacity effect of any project-specific accessories and/or options included in the capacity of the cooling tower.
h. For purposes of this table, evaporative condenser performance is defined as the heat rejected at the specified rating condition in the table divided by the sum of the fan motor nameplate power and the integral spray pump nameplate power.
Table C403.2.3(11) MINIMUM EFFICIENCY REQUIREMENTS: ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR CONDITIONERS
Add a new Table C403.2.3(11) to read as follows:
TABLE C403.2.3(11)
Minimum Efficiency Requirements:
ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR
CONDITIONERS
|
Equipment Type |
Size Category |
Heating Section Type |
Subcategory or Rating Condition |
Minimum Efficiency |
Test Procedure |
|
VRF air conditioners, air cooled |
< 65,000 Btu/h |
All |
VRF multisplit system |
13.0 SEER |
AHRI 1230 |
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
11.2 SEER 13.1 IEER (before 1/1/2017) 15.5 IEER (as of 1/1/2017) |
|
|
|
≥ 135,000 Btu/h and < 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
11.0 EER 12.9 IEER (before 1/1/2017) 14.9 IEER (as of 1/1/2017) |
|
|
|
≥ 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
10.0 EER 11.6 IEER (before 1/1/2017) 13.9 IEER (as of 1/1/2017) |
|
Table C403.2.3(12) Minimum Efficiency Requirements: ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR-TO-AIR AND APPLIED HEAT PUMPS
Add a new Table C403.2.3(12) to read as follows:
TABLE C403.2.3(12)
Minimum Efficiency Requirements:
ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR-TO-AIR AND APPLIED HEAT PUMPS
|
Equipment Type |
Size Category |
Heating Section Type |
Subcategory or Rating Condition |
Minimum Efficiency |
Test Procedure |
|
VRF air cooled (cooling mode) |
< 65,000 Btu/h |
All |
VRF multisplit system |
13.0 SEER |
AHRI 1230 |
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
11.0 EER 12.9 IEER(before 1/1/2017) 14.6 IEER (as of 1/1/2017) |
|
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system with heat recovery |
10.8 EER 12.7 IEER (before 1/1/2017) 14.4 IEER (as of 1/1/2017) |
|
|
|
≥ 135,000 Btu/h and < 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
10.6 EER 12.3 IEER (before 1/1/2017) 13.9 IEER (as of 1/1/2017) |
|
|
|
≥ 135,000 Btu/h and < 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system with heat recovery |
10.4 EER 12.1 IEER (before 1/1/2017) 13.7 IEER (as of 1/1/2017) |
|
|
|
≥ 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system |
9.5 EER 11.0 IEER (before 1/1/2017) 12.7 IEER (as of 1/1/2017) |
|
|
|
≥ 240,000 Btu/h |
Electric resistance (or none) |
VRF multisplit system with heat recovery |
9.3 EER 10.8 IEER (before 1/1/2017) 12.5 IEER (as of 1/1/2017) |
|
|
VRF water source (cooling mode) |
< 65,000 Btu/h |
All |
VRF multisplit systems 86°F entering water |
12.0 EER |
AHRI 1230 |
|
|
< 65,000 Btu/h |
All |
VRF multisplit systems with heat recovery 86°F entering water |
11.8 EER |
|
|
|
≥ 65,000 Btu/h and < 135,000 |
All |
VRF multisplit systems 86°F entering water |
12.0 EER |
|
|
|
≥ 65,000 Btu/h and < 135,000 |
All |
VRF multisplit systems with heat recovery 86°F entering water |
11.8 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit systems 86°F entering water |
10.0 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit systems with heat recovery 86°F entering water |
9.8 EER |
|
|
VRF ground source (cooling mode) |
< 135,000 Btu/h |
All |
VRF multisplit system 59°F entering water |
16.2 EER |
AHRI 1230 |
|
|
< 135,000 Btu/h |
All |
VRF multisplit system with heat recovery 59°F entering water |
16.0 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit system 59°F entering water |
13.8 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit system with heat recovery 59°F entering water |
13.6 EER |
|
|
VRF ground source (cooling mode) |
< 135,000 Btu/h |
All |
VRF multisplit system 77°F entering water |
13.4 EER |
AHRI 1230 |
|
|
< 135,000 Btu/h |
All |
VRF multisplit system with heat recovery 77°F entering water |
13.2 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit system 77°F entering water |
11.0 EER |
|
|
|
≥ 135,000 Btu/h |
All |
VRF multisplit system with heat recovery 77°F entering water |
10.8 EER |
|
|
VRF air cooled (heating mode) |
< 65,000 Btu/h (cooling capacity) |
- |
VRF multisplit system |
7.7 HSPF |
AHRI 1230 |
|
|
≥ 65,000 Btu/h and < 135,000 Btu/h |
- |
VRF multisplit system 47°F db/43°F wb outdoor air |
3.3 COPH |
|
|
|
|
|
17°F db/15°F wb outdoor air |
2.25 COPH |
|
|
|
≥ 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 47°F db/43°F wb outdoor air |
3.2 COPH |
|
|
|
|
|
17°F db/15°F wb outdoor air |
2.05 COPH |
|
|
VRF water source (heating mode) |
< 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 68°F entering water |
4.2 COPH |
AHRI 1230 |
|
|
≥ 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 68°F entering water |
3.9 COPH |
|
|
VRF groundwater source (heating mode) |
< 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 50°F entering water |
3.6 COPH |
AHRI 1230 |
|
|
≥ 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 50°F entering water |
3.3 COPH |
|
|
VRF ground source (heating mode) |
< 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 32°F entering water |
3.1 COPH |
AHRI 1230 |
|
VRF ground source (heating mode) |
≥ 135,000 Btu/h (cooling capacity) |
- |
VRF multisplit system 32°F entering water |
2.8 COPH |
AHRI 1230 |
Section C403.2.4.3 Shutoff dampers.
Section C403.2.4.3 - Revise the second paragraph of Section C403.2.4.3 to read as follows:
Outdoor air intake and exhaust dampers shall be installed with automatic controls configured to close when the systems or spaces served are not in use or during unoccupied period warm-up and setback operation, unless the systems served require outdoor or exhaust air in accordance with the New York City Mechanical Code or the dampers are opened to provide intentional economizer cooling.
Section C403.2.6 Ventilation.
Section C403.2.6 - Revise Section C403.2.6 to read as follows:
C403.2.6 Ventilation. Ventilation, either natural or mechanical, shall be provided in accordance with Chapter 4 of the New York City Mechanical Code. Where mechanical ventilation is provided, the system shall provide the capability to reduce the outdoor air supply to the minimum required by Chapter 4 of the New York City Mechanical Code.
Section C403.2.6.1 Demand controlled ventilation.
Section C403.2.6.1 - Revise the first paragraph of Section C403.2.6.1 to read as follows:
Demand control ventilation (DCV) shall be provided for spaces larger than 500 square feet (46.5 m2) and with an average occupant load of 25 people per 1,000 square feet (93 m2) of floor area (as established in Table 403.3 of the New York City Mechanical Code) and served by systems with one or more of the following:
Section C403.2.6.2 Enclosed parking garage ventilation controls.
Section C403.2.6.2 - Revise Section C403.2.6.2 to read as follows:
C403.2.6.2 Enclosed parking garage ventilation controls. Enclosed parking garages used for storing or handling automobiles operating under their own power shall employ contamination-sensing devices and automatic controls configured to stage fans or modulate fan average airflow rates to 50 percent or less of design capacity, or intermittently operate fans less than 20 percent of the occupied time or as required to maintain acceptable contaminant levels in accordance with New York City Mechanical Code provisions. Failure of contamination sensing devices shall cause the exhaust fans to operate continuously at design airflow.
Exceptions:
1. Garages with a total exhaust capacity less than 22,500 cfm (10 620 L/s) with ventilation systems that do not utilize heating or mechanical cooling.
2. Garages that have a garage area to ventilation system motor nameplate power ration that exceeds 1125 cfm/hp (710 L/s/kW) and do not utilize heating or mechanical cooling.
Section C403.2.7 Energy recovery ventilation systems.
Section C403.2.7 - Revise Item 1 under the Exception to read as follows:
1. Where energy recovery systems are prohibited by section 514.2 of the New York City Mechanical Code.
Section C403.2.7 Energy recovery ventilation systems.
Section C403.2.7 - Revise Item 8 under the Exception to read as follows:
8. Where the largest source of air exhausted at a single location at the building exterior is less than 75 percent of the design outdoor air flow rate. Multiple exhaust fans or outlets located within a 30 foot (9.144 m) radius from the outdoor air supply unit shall be considered a single exhaust location.
Section C403.2.8 Kitchen Exhaust Systems.
Section C403.2.8 - Revise Exception in Section C403.2.8 to read as follows:
Exception: Where not less than 75 percent of all the replacement air is transfer air that would otherwise be exhausted.
Section C403.2.9 Duct and plenum insulation and sealing.
Section C403.2.9 - Revise the last sentence of Section C403.2.9 to read as follows:
Joints and seams shall comply with Section 603.9 of the New York City Mechanical Code.
Section C403.2.9.1 Duct construction.
Section C403.2.9.1 - Revise Section C403.2.9.1 to read as follows:
C403.2.9.1 Duct construction. Ductwork shall be constructed and erected in accordance with the New York City Mechanical Code.
Section C403.2.9.1.1 Low-pressure duct systems.
Section C403.2.9.1.1 - Revise Section C403.2.9.1.1 to read as follows:
C403.2.9.1.1 Low-pressure duct systems. Longitudinal and transverse joints, seams and connections of supply and return ducts operating at a static pressure less than or equal to 2 inches water gauge (w.g.) (498 Pa) shall be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic-plus-embedded-fabric systems or tapes installed in accordance with the manufacturer’s instructions. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the New York City Mechanical Code.
Exception: Locking-type longitudinal joints and seams, other than the snap-lock and button-lock types, need not be sealed as specified in this section.
Section C403.2.9.1.2 Medium-pressure duct systems.
Section C403.2.9.1.2 - Revise Section C403.2.9.1.2 to read as follows:
C403.2.9.1.2 Medium-pressure duct systems. Ducts and plenums designed to operate at a static pressure greater than 2 inches water gauge (w.g.) (498 Pa) but less than 3 inches w.g. (747 Pa) shall be insulated and sealed in accordance with Section C403.2.9. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the New York City Mechanical Code.
Table C403.2.10 Minimum Pipe Insulation Thickness (in inches)a,c
Table C403.2.10 - Revise footnote c in Table C403.2.10 to reads as follows:
c. For direct-buried heating and hot water system piping, reduction of these thicknesses by 1 ½ inches (38 mm) shall be permitted (before thickness adjustment required in footnote b but not to thicknesses less than 1 inches (25 mm)).
Section C403.2.18 Automatic control of HVAC in hotel/motel guest rooms.
Section C403.2.18 - Add a new Section C403.2.18 to read as follows:
C403.2.18 Automatic control of HVAC in hotel/motel guest rooms. In hotels and motels with greater than 50 guest rooms, automatic controls for the HVAC equipment serving each guest room shall be configured according to the requirements in the following subsection. Controls must comply with either Section C403.2.18.1 or C403.2.18.2.
C403.2.18.1 Guest room HVAC setpoint control. Within 30 minutes of all occupants leaving the guest room, HVAC setpoints shall be automatically raised by at least 4°F (2°C) from the occupant setpoint in the cooling mode and automatically lowered by at least 4°F (2°C) from the occupant setpoint in the heating mode. When the guest room is unrented and unoccupied, HVAC setpoints shall be automatically reset to 80°F (27°C) or higher in the cooling mode and to 60°F (16°C) or lower in the heating mode. Unrented and unoccupied guest rooms shall be determined by either of the following:
1. The guest room has been continuously unoccupied for up to 16 hours.
2. A networked guest room control system indicates the guest room is unrented and the guest room is unoccupied for more than 30 minutes.
Exceptions:
1. A networked guest room control system shall be permitted to return the thermostat setpoints to their default occupied setpoints 60 minutes prior to the time the room is scheduled to be occupied.
2. Cooling for humidity control shall be permitted during unoccupied periods.
C403.2.18.2 Automatic Control. Captive key card systems shall be permitted to be used to comply with Section C403.2.18.
Section C403.3 Economizers (Prescriptive).
Section C403.3 - Revise the first paragraph in Section C403.3 to read as follows:
Each cooling system shall include either an air or water economizer complying with Sections C403.3.1 through C403.3.4.
Section C403.3.1 Integrated Economizer Control.
Section C403.3.1 - Revise Item 2 in Section C403.3.1 to read as follows:
2. Direct expansion (DX) units that control 75,000 Btu/h (22 kW) or greater of rated capacity of the capacity of the mechanical cooling directly based on occupied space temperature shall have not fewer than two stages of mechanical cooling capacity.
Section C403.4.1.1 Fan airflow control.
Section C403.4.1.1 - Revise Item 2 under the Exceptions to read as follows:
2. Where the volume of outdoor air required to comply with the ventilation requirements of the New York City Mechanical Code at low speed exceeds the air that would be delivered at the speed defined in Section C403.4.1, the minimum speed shall be selected to provide the required ventilation air.
Section C403.4.4 Requirements for complex mechanical systems serving multiple zones.
Section C403.4.4 - Revise the first sentence to read as follows:
Sections C403.4.4.1 through C403.4.4.6 shall apply to complex mechanical systems serving multiple zones.
Section C403.4.4 Requirements for complex mechanical systems serving multiple zones.
Section C403.4.4 - Revise Item 3 to read as follows:
3. The minimum ventilation requirements of the New York City Mechanical Code.
Section C403.4.4 Requirements for complex mechanical systems serving multiple zones.
Section C403.4.4 - Revise Item 4 under the Exception to read as follows:
4. Zones where the volume of air to be reheated, recooled or mixed is not greater than the volume of outside air required to provide the minimum ventilation requirements of Chapter 4 of the New York City Mechanical Code.
Section C403.4.4.4 Fractional hp fan motors.
Section C403.4.4.4 - Revise Item 2 under the Exceptions to read as follows:
2. Motors in space-conditioning equipment that comply with Section C403.2.3 or C403.2.12.
Sections C403.4.4.6 Multiple-zone VAV system ventilation optimization control.
Section C403.4.4.6 - Revise the first paragraph of Section C403.4.4.6 to read as follows:
Multiple-zone VAV systems with direct digital control of individual zone boxes reporting to a central control panel shall have automatic controls configured to reduce outdoor air intake flow below design rates in response to changes in system ventilation efficiency (Ev) as defined by the New York City Mechanical Code.
SECTION C405
ELECTRICAL POWER AND LIGHTING SYSTEMS
Section C405.2 Lighting Controls (Mandatory).
Section C405.2 - Add a new sentence following the first sentence of Section C405.2 to read as follows:
Lighting controls shall be commissioned and completed in accordance with the requirements of Section C408.3.
Section C405.2.1 Occupant sensor controls.
Section C405.2.1 - Add a new Item 13 to read as follows:
13. Open Plan Offices.
Section C405.2.1.1 Occupant sensor control function.
Section C405.2.1.1 - Delete Section C405.2.1.1 in its entirety and replace with a new Section C405.2.1.1 to read as follows:
C405.2.1.1 Occupant sensor control function. Occupant sensor controls in spaces other than warehouses specified in Section C405.2.1 shall comply with the following:
1. Automatically turn off lights within 20 minutes of all occupants leaving the space.
2. Be manual on or controlled to automatically turn the lighting on to not more than 50 percent power.
Exceptions:
1. Full automatic-on controls shall be permitted to control lighting in open plan offices, public corridors, stairways, restrooms, primary building entrance areas and lobbies, and areas where manual-on operation would endanger the safety or security of the room or building occupants.
2. Manual on controls shall be required for classrooms (not including shop classrooms, laboratory classrooms, and preschool classrooms), conference/meeting rooms, employee lunch and break rooms, and offices smaller than 200 square feet (18.5 m2) in area. Such sensors and controls shall not have an override switch that converts from manual-on to automatic-on functionality, and may have a grace period of up to 30 seconds to turn on the lighting automatically after the sensor has turned off the lighting if occupancy is detected.
3. Shall incorporate a manual control to allow occupants to turn lights off.
Figure C405.2.3.2(1) DAYLIGHT ZONE ADJACENT TO FENESTRATION IN A WALL
Figure C405.2.3.2(1)(b) - Delete Figure C405.2.3.2(1)(b) in its entirety and replace with a new Figure C405.2.3.2(1)(b) to read as follows:
FIGURE C405.2.3.2(1)
DAYLIGHT ZONE ADJACENT TO FENESTRATION IN A WALL
Figure C405.2.3.2(3) DAYLIGHT ZONE UNDER A SLOPED ROOFTOP MONITOR
Figure C405.2.3.2(3)(b) - Delete Figure C405.2.3.2(3)(b) in its entirety and replace with a new Figure C405.2.3.2(3)(b) to read as follows: