Select the path that corresponds to the proposed design heat source: electric resistance, heat pump (including air source and water source), or fuel fired. The net sensible cooling capacity is the gross sensible capacity minus the energy dissipated into the cooled space by the fan system. Decorative lighting systems shall comply with Sections C405.2.6.1, C405.2.6.2 and C405.2.6.4. This section establishes criteria for compliance using total building performance. NBI demonstrated its leadership in codes by submitting proposals for the IECC that included a unified chapter for multifamily housing codes and a lighting measure to begin to tackle indoor agricultural energy usage before the industry expands further. Supply-water temperature reset is not required for chilled-water systems supplied by off-site district chilled water or chilled water from ice storage systems. Verify the correct time and date in the time switch. Functional testing of lighting controls shall comply with, Not less than 1.71 Btu/h per square foot (5.4 W/m. Continuous insulation board shall be installed in not less than 2 layers and the edge joints between each layer of insulation shall be staggered. 2018 IECC Residential Summary Minor improvement over the 2015 IECC o Windows: 0.6-1.1% improvement in the prescriptive path. Exception: Thermostat settings and schedules for HVAC systems that utilize radiant heating, radiant cooling and elevated air speed, provided that equivalent levels of occupant thermal comfort are demonstrated by means of equal Standard Effective Temperature as calculated in Normative Appendix B of ASHRAE Standard 55. Systems with energy recovery complying with. A preliminary report of commissioning test procedures and results shall be completed and certified by the registered design professional or approved agency and provided to the building owner or owner's authorized agent. notes shall … The required heat recovery system shall have the capacity to provide the smaller of the following: Refrigerated warehouse coolers and refrigerated warehouse freezers shall comply with this section. Where no cooling system exists or no cooling system has been specified, the cooling system shall be modeled as an air-cooled single-zone system, one unit per thermal zone. Group A-2: Restaurants and banquet halls or buildings containing food preparation areas. 2.2. Refer to Table C402.2 for minimum R-Values and U-factors for Hydronic systems greater than or equal to 300,000 Btu/h (87.9 kW) in design output capacity supplying heated or chilled water to comfort conditioning systems shall include controls that are configured to do all of the following: Automatically vary pump flow on heating-water systems, chilled-water systems and heat rejection loops serving water-cooled unitary air conditioners as follows: VARIABLE SPEED DRIVE (VSD) REQUIREMENTS FOR DEMAND-CONTROLLED PUMPS. Was manufactured on or after April 16, 2015. Energy prices shall be taken from a source approved by the code official, such as the Department of Energy, Energy Information Administration's State Energy Price and Expenditure Report. For insulation outside the stated conductivity range, the minimum thickness (T) shall be determined as follows: t = insulation thickness listed in the table for applicable fluid temperature and pipe size, K = conductivity of alternate material at mean rating temperature indicated for the applicable fluid temperature (Btu • in/h • ft2 • °F) and. Television broadcast lighting for playing areas in sports arenas. Verify that the override time limit is set to not more than 2 hours. The temperature shall be reset by not less than 25 percent of the design supply-to-return water temperature difference. Requirements for evaporative condensers are listed with ammonia (R-717) and R-507A as test fluids in the table. 6.2. The amount of renewable energy purchased from off-site sources shall be the same in the standard reference design and the proposed design. For fans 6 bhp (4413 W) and larger, 1.3 times the fan brake horsepower. Benefits of the IECC: The 2018 IECC contains a reorganized Commercial Mechanical Section C403 where all provisions a type of equipment or system are in one place; for example all Economizer requirements are found in Section 403.5. Verify that any battery back-up is installed and energized. o Energy Rating Index path. Buildings, or portions thereof, shall not be considered as acceptable for a final inspection pursuant to, A written report describing the activities and measurements completed in accordance with. Heated water supply piping shall be in accordance with, The volume shall be the sum of the internal volumes of pipe, fittings, valves, meters and manifolds between the nearest source of heated water and the termination of the fixture supply pipe. Masonry walls constructed of clay or shale masonry units with a nominal width of 4 inches (102 mm) or more. These inputs help surface the applicable codes and requirements. Site-assembled or site-constructed walk-in coolers and walk-in freezers shall comply with the following: Automatic door closers shall be provided that fully close walk-in doors that have been closed to within 1 inch (25 mm) of full closure. Exception: The use of mixed-air temperature limit control shall be permitted for systems controlled from space temperature (such as single-zone systems). Variable speed drives are not required on heating water pumps where more than 50 percent of annual heat is generated by an electric boiler. Ch. Exception: Air barriers are not required in buildings located in Climate Zone 2B. The sub-cooled liquid temperature shall be controlled at a maximum temperature setpoint of 50°F (10°C) at the exit of the subcooler using either compressor economizer (interstage) ports or a separate compressor suction group operating at a saturated suction temperature of 18°F (-7.8°C) or higher. This proposal removes a redundant definition. A = Distance measured horizontally from the farthest continuous extremity of any overhang, eave or permanently attached shading device to the vertical surface of the glazing. The lights are not incorrectly turned on by movement in adjacent areas or by HVAC operation. Functions to be tested including, but not limited to, calibrations and economizer controls. Exception: Where more than 75 percent of the energy for heating, computed over an operating season of not fewer than 3 calendar months, is from site-recovered energy such as from a heat pump or on-site renewable energy system, covers or other vapor-retardant means shall not be required. Have a heating system capacity not greater than (17,000 Btu/hr) (5 kW) and a heating thermostat setpoint that is restricted to not more than 50°F (10°C). Residential. 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. 2 Definitions. Emergency egress lighting that is normally off. Air economizers shall undergo a functional test to determine that they operate in accordance with manufacturer's specifications. 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. Boiler systems including more than one boiler shall be capable of and configured to reduce flow automatically through the boiler system when a boiler is shut down. Seventy-five percent of the energy for reheating is from site-recovered or site-solar energy sources. )(75 Pa) when tested in accordance with ASTM E2357, ASTM E1677 or ASTM E283 shall comply with this section. Applications for approval of an exceptional method shall include all of the following: Prior to the final mechanical and plumbing inspections, the registered design professional or approved agency shall provide evidence of mechanical systems commissioning and completion in accordance with the provisions of this section. BUILDING ENERGY CODES www.energycodes.gov Scope Section R101. Scope: New Construction Newly constructed commercial buildings shall follow either the 2018 IECC for new construction in Section C403 Building Mechanical Systems or Section 6 … Submit this form or email us at, Please contact support@up.codes. TBFA = Total building floor area is the sum of all floor areas included in the lighting power allowance calculation in Section C405.3.2. Suction groups that have a design saturated suction temperature of 30°F (-1.1°C) or higher, suction groups that comprise the high stage of a two-stage or cascade system, or suction groups that primarily serve chillers for secondary cooling fluids. In an enclosed space greater than 2,500 square feet (232 m2) in floor area, directly under a roof with not less than 75 percent of the ceiling area with a ceiling height greater than 15 feet (4572 mm), and used as an office, lobby, atrium, concourse, corridor, storage space, gymnasium/exercise center, convention center, automotive service area, space where manufacturing occurs, nonrefrigerated warehouse, retail store, distribution/sorting area, transportation depot or workshop, the total toplit daylight zone shall be not less than half the floor area and shall provide one of the following: A minimum skylight effective aperture of not less than 1 percent, determined in accordance with Equation 4-4. Air economizer systems shall be configured to modulate, Systems shall be capable of relieving excess, Return, exhaust/relief and outdoor air dampers used in economizers shall comply with. Turn off the terminal fan except when space heating is required or where required for ventilation. In warehouses, the lighting in aisleways and open areas shall be controlled with occupant sensors that automatically reduce lighting power by not less than 50 percent when the areas are unoccupied. First, select an energy compliance path from Line 3 and complete the Project Information, Project Team Information, and Scope of Work sections from Line 22 to 26. Evaporative condensers intended for use with halocarbon refrigerants other than R-507A shall meet the minimum efficiency requirements listed in this table with R-507A as the test fluid. Where this results in one or more sensors being located downstream of major duct splits, not less than one sensor shall be located on each major branch to ensure that static pressure can be maintained in each branch. This section covers the provision of maintenance information and the commissioning of, and the functional testing requirements for, building systems. 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 International Mechanical Code or the dampers are opened to provide intentional economizer cooling. Buildings located at less than 23.5 degrees latitude shall use SEW for all orientations. Ch. Valves, pumps, strainers and threaded unions in piping that is 1 inch (25 mm) or less in nominal diameter. For SI: 1 foot = 304.8 mm, 1 cfm/ft2 = 0.4719 L/s, 1 Btu/h = 0.293/W, °C = [(°F) - 32]/1.8. Submittal data indicating all selected options for each piece of lighting equipment and lighting controls. Never miss important differences made to the code. Sixty percent of the peak heat rejection load at design conditions. The system characteristics shall be identical in both the standard reference design and proposed design. Exception: Economizers on variable air volume (VAV) systems that cause zone level heating to increase because of a reduction in supply air temperature. SPECIFICATIONS FOR THE STANDARD REFERENCE DESIGN HVAC SYSTEM DESCRIPTIONS. Where pumps have automatic direct digital control configured to operate pumps only when zone heating or cooling is required, a variable speed drive shall be provided for pumps with motors having the same or greater nominal output power indicated in. The label shall include the title or publication number for the operation and maintenance manual for that particular model and type of product. Section. For light-emitting diode luminaires with either integral or remote drivers, the rated wattage of the luminaire. Ch. 3 Vapor Retarder and Air Barrier [R402.4] Code Summary . exhaust fans, parking garage ventilation fans, and pumps, elevators, escalators, refrigeration, for daily operation and shall account for variations, seasonal operation. Do not copy, distribute, or disclose. Verify and document the following: Simulate unoccupied condition. The walls, floors and ceilings that separate the enclosed room or space from conditioned spaces shall be sealed in accordance with. Facilities that provide 60 percent of their service water heating from site solar or site recovered energy or from other sources. The total exterior lighting power allowance is the sum of the base site allowance plus the individual allowances for areas that are to be illuminated by lighting that is powered through the energy service for the building. Equipment shall exceed the minimum efficiency requirements listed in Tables, The total connected interior lighting power calculated in accordance with, Buildings containing equipment or systems regulated by, The total UA of the building thermal envelope as designed shall be not less than 15 percent below the total UA of the building thermal envelope in accordance with, Compliance with this section requires compliance with Sections, Documentation verifying that the methods and accuracy of compliance software tools conform to the provisions of this section shall be provided to the, accordance with Table C405.5.2 for all areas of the, building covered by this permit. 2.2. devices protecting the system. safety factors are provided than in the proposed design. Doors and access openings from conditioned space to shafts, chutes stairways and elevator lobbies not within the scope of the fenestration assemblies covered by Section C402.5.2 shall be gasketed, weatherstripped or sealed. Not economizing when the unit should be economizing. Individual exhaust fans with motor nameplate horsepower of 1 hp (0.746 kW) or less are exempt from the allowable fan horsepower requirement. Controls shall be provided that will de-energize ventilation fans and lighting systems when the elevator is stopped, unoccupied and with its doors closed for over 15 minutes. MINIMUM CHILLED-WATER SYSTEM COOLING CAPACITY FOR DETERMINING ECONOMIZER COOLING REQUIREMENTS, EQUIPMENT EFFICIENCY PERFORMANCE EXCEPTION FOR ECONOMIZERS. For SI: 1 cubic foot per minute = 0.47 L/s, 1 square foot = 0.093 m2. Interior spaces shall be those located more than 15 feet (4572 mm) from an exterior wall. Piping surrounded by building insulation with a thermal resistance (, For a public lavatory faucet, use the "Public lavatory faucets" column in, For all other plumbing fixtures and plumbing appliances, use the "Other fixtures and appliances" column in. 0.25 inch w.c./100 feet of vertical duct exceeding 75 feet. Exception: Unit skylight curbs included as a component of a skylight listed and labeled in accordance with NFRC 100 shall not be required to be insulated. HVAC system design and economizer controls shall be such that economizer operation does not increase building heating energy use during normal operation. Condenser fan motors that are less than 1 hp (0.746 kW) shall use electronically commutated motors, permanent split capacitor-type motors or 3-phase motors. The total exterior connected lighting power shall be the total maximum rated wattage of all lighting that is powered through the energy service for the building. The total exceptional savings shall not constitute more than half of the difference between the baseline building performance and the proposed building performance. The minimum thermal resistance (R-value) of the insulating material installed either between the roof framing or continuously on the roof assembly shall be as specified in Table C402.1.3, based on construction materials used in the roof assembly. The controls on pumps that circulate water between a water heater and a heated-water storage tank shall limit operation of the pump from heating cycle startup to not greater than 5 minutes after the end of the cycle. Additionally, the controls shall have a manual override that allows temporary operation of the system for up to 2 hours; a manually operated timer configured to operate the system for up to 2 hours; or an occupancy sensor. HVAC systems shall be balanced in accordance with generally accepted engineering standards. Specific application controls shall be provided for the following: The following lighting shall be controlled by an occupant sensor complying with Section C405.2.1.1 or a time-switch control complying with Section C405.2.2.1. An inspection checklist documenting the building component characteristics of the. The outdoor airflow rate required to meet the minimum ventilation requirements of Chapter 4 of the. Fans that are part of equipment covered in, Fans included in an equipment package certified by an. The minimum thermal resistance (R-value) of materials installed in the wall cavity between framing members and continuously on the walls shall be as specified in Table C402.1.3, based on framing type and construction materials used in the wall assembly. with a moisture vapor-permeable material. The minimum insulation thickness requirements of this section shall not supersede any greater insulation thickness requirements necessary for the protection of piping from freezing temperatures or the protection of personnel against external surface temperatures on the insulation. A certification signed by the builder providing the building component characteristics of the, Documentation of the reduction in energy use associated with. The preheating required to raise the peak service hot water draw to 85°F (29°C). Vestibules shall be designed so that in passing through the vestibule it is not necessary for the interior and exterior doors to open at the same time. They shall have a clock capable of being programmed for not fewer than 7 days. Hospital, vivarium and laboratory systems that utilize flow control devices on exhaust or return to maintain space pressure relationships necessary for occupant health and safety or environmental control shall be permitted to use variable volume fan power limitation. Deferred tests that cannot be performed at the time of report preparation because of climatic conditions. Adopting jurisdictions include Colorado, Delaware, Florida, Illinois, Kansas, Maryland, Massachusetts, Minnesota, Nebraska, Nevada, New Jersey, New York State, North Dakota, Oregon, Puerto Rico, and Utah. Exception: The standards in this section shall not apply to the following exempt electric motors: MINIMUM NOMINAL FULL-LOAD EFFICIENCY FOR NEMA DESIGN A, NEMA DESIGN B, AND IEC DESIGN N MOTORS (EXCLUDING FIRE PUMP) ELECTRIC MOTORS AT 60 HZa, b. Portions of roofs that are ballasted with a minimum stone ballast of 17 pounds per square foot [74 kg/m. The following systems and loads shall be included in determining the total building performance: heating systems, cooling systems, service water heating, fan systems, lighting power, receptacle loads and process loads. Building thermal envelope opaque assemblies intended to comply on an assembly U-, C- or F-factor basis shall have a U-, C- or F-factor not greater than that specified in Table C402.1.4. Exception: Nonmotorized gravity dampers shall be an alternative to motorized dampers for exhaust and relief openings as follows: Nonmotorized gravity dampers shall have an air leakage rate not greater than 20 cfm/ft2 (101.6 L/s • m2) where not less than 24 inches (610 mm) in either dimension and 40 cfm/ft2 (203.2 L/s • m2) where less than 24 inches (610 mm) in either dimension. illumination, receptacle loads, thermostat settings, availability, service hot water usage and any, the proposed building type as determined by the, based on sizing runs, and shall be established such that no smaller. The air barrier shall be continuous for all assemblies that are the thermal envelope of the building and across the joints and assemblies. Systems expected to operate less than 20 hours per week. The air barriers shall be permitted to be located on the inside or outside of the building envelope, located within the assemblies composing the envelope, or any combination thereof. Name and version of the compliance software tool. The total connected interior lighting power shall be determined in accordance with Equation 4-10. This includes supply fans, exhaust fans, return/relief fans, and fan-powered terminal units associated with systems providing heating or cooling capability. Thermostatic setback controls shall be configured to set back or temporarily operate the system to maintain zone temperatures down to 55°F (13°C) or up to 85°F (29°C). Where antisweat heaters without antisweat heater controls are provided, they shall have a total door rail, glass and frame heater power draw of not more than 7.1 W/ft. For lighting equipment to be installed in sales areas specifically to highlight merchandise, the additional lighting power shall be determined in accordance with Equation 4-11. 3 General Requirements. Twenty percent of the zone design peak supply for systems with DDC and 30 percent for other systems. Advertising signage or directional signage. Replacement efficiencies apply only to units with existing sleeves less than 16 inches (406 mm) in height and less than 42 inches (1067 mm) in width. Individual fan systems with cooling capacity … Radiant heating system panels that are installed in the building thermal envelope shall be separated from the exterior of the building or unconditioned or exempt spaces by not less than the R-value of insulation installed in the opaque assembly in which they are installed or the assembly shall comply with Section C402.1.4. Factory-installed piping within room fan-coils and unit ventilators tested and rated according to AHRI 440 (except that the sampling and variation provisions of Section 6.5 shall not apply) and AHRI 840, respectively. The requirements for centrifugal chiller shall be adjusted for nonstandard rating conditions in accordance with. A horsepower at or above the midpoint between the two consecutive horsepowers shall be rounded up to the higher of the two horsepowers. Step-by-step documentation of the exceptional calculation method performed, detailed enough to reproduce the results. Capacity and efficiency correction curves for mechanical heating and cooling equipment. Conditions under which the test will be performed. The first stage of heating modulates the zone supply air temperature setpoint up to a maximum setpoint while the airflow is maintained at the deadband flow rate. The system turndown requirement shall be met through the use of multiple single-input boilers, one or more modulating boilers or a combination of single-input and modulating boilers. FL Proposed = Proposed F-value x Perimeter length. Table C407.5.1(1) shall include by reference all notes contained in Table C402.1.4. Projects allow you to save customized inputs about your building. MINIMUM PIPE INSULATION THICKNESS (in inches)a, c. For SI: 1 inch = 25.4 mm, °C = [(°F) - 32]/1.8. Supply and return air ducts and plenums shall be insulated with not less than R-6 insulation where located in unconditioned spaces and where located outside the building with not less than R-8 insulation in Climate Zones 1 through 4 and not less than R-12 insulation in Climate Zones 5 through 8. For SI: 1 inch = 25.4 mm, 1 pound per square foot = 4.88 kg/m2, 1 pound per cubic foot = 16 kg/m3. Refrigeration equipment shall have an energy use in kWh/day not greater than the values of Tables, Ducts, plenums, piping and other elements that are part of an HVAC system shall be constructed and insulated in accordance with Sections, Ductwork shall be constructed and erected in accordance with the, Ducts and plenums designed to operate at a static pressure greater than 2 inches water gauge (w.g.) Aged thermal emittance tested in accordance with ASTM C1371 or ASTM E408 or CRRC-S100. Assembly descriptions can be found in ANSI/ASHRAE/IESNA Appendix A. R-5.7ci is allowed to be substituted with concrete block walls complying with ASTM C90, ungrouted or partially grouted at 32 inches or less on center vertically and 48 inches or less on center horizontally, with ungrouted cores filled with materials having a maximum thermal conductivity of 0.44 Btu-in/h-f. Where heated slabs are below grade, below-grade walls shall comply with the exterior insulation requirements for heated slabs. Lighting intended for continuous operation. Condenser fan motors that are less than 1 hp (0.746 kW) in capacity shall be of the electronically commutated or permanent split capacitor-type or shall be 3-phase motors. A design outdoor airflow greater than 3,000 cfm (1416 L/s). BUILDING ENVELOPE FENESTRATION MAXIMUM U-FACTOR AND SHGC REQUIREMENTS. 5 Existing Buildings . The controls shall be capable of and configured to automatically raise the cooling setpoint to not lower than 80°F (27°C) and lower the heating setpoint to not higher than 60°F (16°C) when the guestroom is unrented or has not been continuously occupied for more than 16 hours or a, Fans in HVAC systems shall comply with Sections, standards to be fully ducted, or systems required to maintain, Controls shall be provided for fans in accordance with. Controls shall be provided on each HVAC system that are capable of and configured to automatically raise the cooling setpoint and lower the heating setpoint by not less than 4°F (2°C) from the occupant setpoint within 30 minutes after the occupants have left the guestroom. The performance rating calculated with and without the exceptional calculation method. For luminaires incorporating a ballast or transformer, the rated input wattage of the ballast or transformer when operating that lamp. 3.2. A narrative of how each system is intended to operate, including recommended setpoints. The total efficiency of the fan at the design point of operation shall be within 15 percentage points of the maximum total efficiency of the fan. Rapidly and efficiently calculate project parameters. 1.1. June 3, 2020 31 2. The proposed skylight area; where the proposed skylight area is less than that permitted by. Freeze protection systems, such as heat tracing of outdoor piping and heat exchangers, including self-regulating heat tracing, shall include automatic controls configured to shut off the systems when outdoor air temperatures are above 40°F (4°C) or when the conditions of the protected fluid will prevent freezing. Building thermal envelope opaque assemblies shall meet the requirements of Sections C402.2 and C402.4 based on the climate zone specified in Chapter 3. Comply with the roof solar reflectance and thermal emittance provisions for. BUILDING ENERGY CODES www.energycodes.gov 2 – Energy codes and standards set minimum efficiency requirements for new and renovated buildings, assuring reductions in energy use and emissions over the life of the building. WALK-IN COOLER AND FREEZER DISPLAY DOOR EFFICIENCY REQUIREMENTSa, WALK-IN COOLER AND FREEZER NONDISPLAY DOOR EFFICIENCY REQUIREMENTSa, WALK-IN COOLER AND FREEZER REFRIGERATION SYSTEM EFFICIENCY REQUIREMENTS. Gravity and thermo-syphon circulation systems shall be prohibited. Required standby equipment and systems provided with controls and devices that allow such systems or equipment to operate automatically only when the primary equipment is not operating. Reverse the terminal damper logic and provide heating from the central air handler by primary air. Garages that have a garage area to ventilation system motor nameplate power ratio that exceeds 1125 cfm/hp (710 L/s/kW) and do not utilize heating or mechanical cooling. The calculations shall be performed on a time step basis consistent with the simulation program used. This section has been amended at the state or city level. 6.1. the lighting power density shall be 1.0 Watt per square foot (10.7 W/, modeled and estimated based on the space use, associated with the building shall be modeled to. Simple Systems refer to packaged unitary equipment. HIGH-LIMIT SHUTOFF CONTROL SETTING FOR AIR ECONOMIZERSb. Controls shall be provided on each HVAC system that are capable of and configured to automatically turn off the ventilation and exhaust fans within 30 minutes of the occupants leaving the guestroom, or isolation devices shall be provided to each guestroom that are capable of automatically shutting off the supply of outdoor air to and exhaust air from the guestroom. Water-heating equipment and hot water storage tanks shall meet the requirements of Table C404.2. Chilled water systems with a total cooling capacity, less cooling capacity provided with air economizers, as specified in, Individual fan systems not served by chilled water for buildings located in. Interior exit stairways, interior exit ramps and exit passageways. Simple Buildings: 2012 IECC, Quick Reference Table Primary Component Secondary Steps to Ensure Compliance 2012 IECC Building Envelope 1. Confirm the availability of a program in your local area before purchasing or installing this product. MAXIMUM AIR LEAKAGE RATE FOR FENESTRATION ASSEMBLIES. Where more than 60 percent of the outdoor heating energy is provided from site-recovered or site-solar energy. Exceptions: Economizers are not required for the following systems. The dampers shall have an air leakage rate not greater than 4 cfm/ft2 (20.3 L/s • m2) of damper surface area at 1.0 inch water gauge (249 Pa) and shall be labeled by an approved agency when tested in accordance with AMCA 500D for such purpose. The efficiency shall be verified through data furnished by the manufacturer of the equipment or through certification under an approved certification program. The floor area used for the sale of furniture, clothing, cosmetics and artwork. Materials lacking 3-year-aged tested values for either solar reflectance or thermal emittance shall be assigned both a 3-year-aged solar reflectance in accordance with. 3.1. About IECC 2018 The International Energy Conservation Code (IECC) 2018 is a residential and commercial building energy code. 1.2. Airflow shall be deemed minimized where the enclosed airspace is located on the interior side of the continuous air barrier and is bounded on all sides by building components. 1.2. Daylight responsive controls shall comply with this section and Section C405.2.3.1. Replacement unit shall be factory labeled as follows: "MANUFACTURED FOR REPLACEMENT APPLICATIONS ONLY: NOT TO BE INSTALLED IN NEW CONSTRUCTION PROJECTS." The first value is for perimeter insulation and the second value is for slab insulation. The calibration adjustment equipment is located for. Exception: Independent perimeter systems that are designed to offset only building envelope heat losses, gains or both serving one or more perimeter zones also served by an interior system provided that both of the following conditions are met: Where used to control both heating and cooling, zone thermostatic controls shall be configured to provide a temperature range or deadband of not less than 5°F (2.8°C) within which the supply of heating and cooling energy to the zone is shut off or reduced to a minimum. Storage tank-type water heaters and hot water storage tanks that have vertical water pipes connecting to the inlet and outlet of the tank shall be provided with integral heat traps at those inlets and outlets or shall have pipe-configured heat traps in the piping connected to those inlets and outlets. The energy consumption of electric-powered portable spas shall be controlled by the requirements of APSP 14. Where humidification or dehumidification or both is provided, not fewer than one humidity control device shall be provided for each humidity control system. Condenser fan motors that are less than 1 hp (0.75 kW) shall use electronically commutated motors, permanent split-capacitor-type motors or 3-phase motors. 5.3. 7 2018 IECC Scope and Administration Major Changes. Emergency lighting automatically off during normal building operation. Refrigeration system condenser control for air-cooled condensers shall use variable setpoint control logic to reset the condensing temperature setpoint in response to ambient dry-bulb temperature. Incorporate an automatic holiday "shutoff" feature, which turns off all controlled lighting loads for not fewer than 24 hours and then resumes normally scheduled operations. 4.1. In Part I, Part II, Part III, and Part IV of our Building for the Future blog posts we gave a general overview, building envelope, mechanical and electrical updates of the 2018 IECC.. Now let’s move on to Commissioning (Cx), one of the most valuable, as well as the most misunderstood, services in the AEC profession. Air temperature sensor failure/fault. Interior lighting in the building shall have the following enhanced lighting controls that shall be located, scheduled and operated in accordance with Sections C405.2.1 through C405.2.3. The switch only operates lighting in the enclosed space in which the switch is located. Chapter 6 contains a complete specification of the referenced test procedure, including the reference year version of the test procedure. Neither the area of the dwelling units nor the wattage of lighting in the dwelling units is counted. Units that include an air economizer shall comply with the following: DX COOLING STAGE REQUIREMENTS FOR MODULATING AIRFLOW UNITS. This section covers the minimum efficiency of, and controls for, service water-heating equipment and insulation of service hot water piping. ci = Continuous insulation, NR = No Requirement, LS = Liner System. Using Sections C402 through C405, which include prescriptive requirements using one of the following for building envelope: R-value-based method; Assembly U-factor, C-factor, or F-factor-based method; Component performance alternative ; Complying with air leakage, some mechanical, and all of the requirements … 2018 IECC Code (Base Codes) Codes And Policy, New Construction. Minimum and maximum ratings as provided for and allowed by the unit's controls. Net sensible cooling capacity: the total gross cooling capacity less the latent cooling less the energy to the air movement system. IECC Committee Passes New EV-Ready Code Requirements May 28, 2019 The International Code Council (ICC) code hearings were held the first week of May in Albuquerque to determine which of the proposed code amendments will be considered for adoption in the 2021 model building code. For systems with mixed fuel heating sources, the system or systems that use the secondary heating source type (the one with the smallest total installed output capacity for the spaces served by the system) shall be modeled identically in the standard reference design and the primary heating source type shall be used to determine. Fans shall have a fan efficiency grade (FEG) of not less than 67, as determined in accordance with AMCA 205 by an approved, independent testing laboratory and labeled by the manufacturer. The following low-energy buildings, or portions thereof separated from the remainder of the building by building thermal envelope assemblies complying with this section, shall be exempt from the building thermal envelope provisions of Section C402. Name and address of not less than one service agency for installed equipment. proposed design, no service hot water heating shall be modeled. Dedicated condensing, medium temperature, outdoor system. The following shall apply to hydronic water loop heat pump systems in Climate Zones 3 through 8: Exception: Where it can be demonstrated that a heat pump system will be required to reject heat throughout the year. B = Distance measured vertically from the bottom of the glazing to the underside of the overhang, eave or permanently attached shading device. ER = The effective R-value of the cavity insulation with steel studs as specified in Table C402.1.4.1. Controls for such systems shall be able to automatically adjust the energy input to the heat tracing to maintain the desired water temperature in the piping in accordance with the times when heated water is used in the occupancy. Instantaneous water heaters with input rates below 200,000 Btu/h shall comply with these requirements where the water heater is designed to heat water to temperatures 180°F or higher. Where an aged solar reflectance required by Section C402.3 is not available, it shall be determined in accordance with Equation 4-3. R402.2.10 Slab-on-grade floors. Where the proposed skylight area is less than or equal to the skylight area allowed by Section C402.4.1, the value of E (Excess Skylight Value) shall be zero. Determine which parts of the building are “Group R” or “Other” Step BE1b. Documentation shall be furnished by the designer demonstrating that representative sections totaling not less than 25 percent of the duct area have been tested and that all tested sections comply with the requirements of this section. Ducts, air handlers and filter boxes shall be sealed. Where a variable speed drive is required by Item 3 of this Section, pump motor power input shall be not more than 30 percent of design wattage at 50 percent of the design water flow. Demand ventilation systems on not less than 75 percent of the exhaust air that are configured to provide not less than a 50-percent reduction in exhaust and replacement air system airflow rates, including controls necessary to modulate airflow in response to appliance operation and to maintain full capture and containment of smoke, effluent and combustion products during cooking and idle. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. Testing shall include all modes and sequence of operation, including under full-load, part-load and the following emergency conditions: Exception: Unitary or packaged HVAC equipment listed in Tables C403.3.2(1) through C403.3.2(3) that do not require supply air economizers. Low or minimum speed shall be used during periods of low cooling load and ventilation-only operation. Plate-type liquid-to-liquid heat exchangers shall meet the minimum requirements of Table C403.3.2(10). Piping serving as part of a heating or cooling system shall be thermally insulated in accordance with Table C403.11.3. The output file shall include energy use totals and energy use by energy source and end-use served, total hours that space conditioning loads are not met and any errors or warning messages generated by the simulation tool as applicable. Where throttling results in not greater than 5 percent of the nameplate horsepower draw above that required if the impeller were trimmed. Air economizers shall be configured to automatically reduce outdoor air intake to the design minimum outdoor air quantity when outdoor air intake will not reduce cooling energy usage. Per the 2018 IECC, Section C401.2: Using the requirements of ASHRAE 90.1-2016. An increase in the interior lighting power allowance is permitted in the following cases: Additional interior lighting power allowance = 1000 W + (Retail Area 1 × 4.8 W/m, The total connected exterior lighting power calculated in accordance with, neighborhood business districts, light industrial with, areas as designated by the local land use planning, inspection stations at guarded facilities, Any increase in the exterior lighting power allowance is limited to the specific lighting applications indicated in. w.c. = water column, NC = Noise criterion. FAN POWER LIMITATION PRESSURE DROP ADJUSTMENT. Control devices have been properly located, field calibrated and set for accurate setpoints and threshold light levels. Site-assembled or site-constructed refrigerated display cases shall comply with the following: Lighting and glass doors in refrigerated display cases shall be controlled by one of the following: Refrigerated display cases, walk-in coolers or walk-in freezers that are served by remote compressors and remote condensers not located in a condensing unit, shall comply with Sections C403.10.4.1 and C403.10.4.2. Multiple-cell heat rejection equipment with variable speed fan drives shall be controlled to operate the maximum number of fans allowed that comply with the manufacturer's requirements for all system components and so that all fans operate at the same fan speed required for the instantaneous cooling duty, as opposed to staged on and off operation. Factory-installed piping within HVAC equipment tested and rated in accordance with a test procedure referenced by this code. At low or minimum speed, the fan system shall draw not more than 40 percent of the fan power at full fan speed. The heating of fluids that have been previously mechanically cooled and the cooling of fluids that have been previously mechanically heated shall be limited in accordance with Sections. Each cooling system listed in Table C403.8.5.1 shall be designed to vary the indoor fan airflow as a function of load and shall comply with the following requirements: For SI: 1 British thermal unit per hour = 0.2931 W; 1 hp = 0.746 kW. Waste heat recovery from service hot water, heat-recovery chillers, building equipment, or process equipment. Systems primarily serving computer rooms with dry cooler water economizers that satisfy 100 percent of the expected system cooling load at 35°F (1.7°C) dry bulb. NA means the requirements are not applicable for Path B and only Path A can be used for compliance. Exceptions: The following roofs and portions of roofs are exempt from the requirements of Table C402.3: Portions of the roof that include or are covered by the following: MINIMUM ROOF REFLECTANCE AND EMITTANCE OPTIONSa. 3.2. For purposes of this table, closed-circuit cooling tower performance is defined as the water flow rating of the tower at the thermal rating condition, divided by the sum of the fan nameplate-rated motor power and the spray pump nameplate-rated motor power. Evaporator fan motors that are less than 1 hp (0.746 kW) and less than 460 volts shall use electronically commutated motors, brushless direct-current motors, or 3-phase motors. Economizer requirements and exceptions are based on local codes AND climate zone. Lighting equipment that is for sale or demonstration in lighting education. Units that include an air-side economizer in accordance with, Modulating fan control is not required for chilled water and evaporative cooling units with fan motors of less than 1 hp (0.746 kW) where the units are not used to provide, Where the volume of outdoor air required to comply with the ventilation requirements of the. MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL REFRIGERATION, MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL REFRIGERATORS AND FREEZERS. Recessed lighting fixtures shall comply with, Plywood with a thickness of not less than, Oriented strand board having a thickness of not less than, Extruded polystyrene insulation board having a thickness of not less than, Foil-back polyisocyanurate insulation board having a thickness of not less than, Closed-cell spray foam having a minimum density of 1.5 pcf (2.4 kg/m, Open-cell spray foam with a density between 0.4 and 1.5 pcf (0.6 and 2.4 kg/m, Exterior or interior gypsum board having a thickness of not less than, Cement board having a thickness of not less than, A Portland cement/sand parge, or gypsum plaster having a thickness of not less than. The minimum fan speed shall be the minimum allowable speed of the fan drive system in accordance with the manufacturer's recommendations. Each isolation area shall be equipped with isolation devices and controls configured to automatically shut off the supply of conditioned air and outdoor air to and exhaust air from the isolation area. Floor framing cavity insulation or structural slab insulation shall be installed to maintain permanent contact with the underside of the subfloor decking or structural slabs. Code Calculators automatically generates a detailed list of requirements. Centrifugal fan open-circuit cooling towers with a combined rated capacity of 1,100 gpm (4164 L/m) or greater at 95°F (35°C) condenser water return, 85°F (29°C) condenser water supply, and 75°F (24°C) outdoor air wet-bulb temperature shall meet the energy efficiency requirement for axial fan open-circuit cooling towers listed in Table C403.3.2(8). Roofs where not less than 75 percent of the roof area complies with one or more of the exceptions to this section. Time-switch controls shall include an override switching device that complies with the following: Include an override switch that complies with the following: Within mall concourses, auditoriums, sales areas, manufacturing facilities and sports arenas: Where provided with manual control, the following areas are not required to have light reduction control: Spaces required to have light-reduction controls shall have a manual control that allows the occupant to reduce the connected lighting load in a reasonably uniform illumination pattern by not less than 50 percent. Requirements C405.4 - Ext. (Note: this is for Climate Zones … EA = (Proposed Skylight Area) - (Allowable Skylight Area as specified in Section C402.4.1). Air barrier joints and seams shall be sealed, including sealing transitions. INTERIOR LIGHTING POWER ALLOWANCES: BUILDING AREA METHOD, INTERIOR LIGHTING POWER ALLOWANCES: SPACE-BY-SPACE METHOD. The report shall be organized with mechanical system and service hot water system findings in separate sections to allow independent review. 2.1. Variable pump flow is not required on dedicated coil circulation pumps where needed for freeze protection. Each hood shall have a maximum exhaust rate as specified in Table C403.7.5 and shall comply with one of the following: Where a single hood, or hood section, is installed over appliances with different duty ratings, the maximum allowable flow rate for the hood or hood section shall be based on the requirements for the highest appliance duty rating under the hood or hood section. Disposition of deficiencies found during testing, including details of corrective measures used or proposed. Exceptions: The following transformers are exempt: MINIMUM NOMINAL EFFICIENCY LEVELS FOR 10 CFR 431 LOW-VOLTAGE DRY-TYPE DISTRIBUTION TRANSFORMERS. 7.3. Drain water heat recovery units shall comply with CSA B55.2. Copies of all documentation shall be given to the owner or owner's authorized agent and made available to the code official upon request in accordance with Sections C408.2.4 and C408.2.5. Skylight curbs shall be insulated to the level of roofs with insulation entirely above the deck or R-5, whichever is less. Exhaust air and outdoor air connections to isolation areas where the fan system to which they connect is not greater than 5,000 cfm (2360 L/s). Individual fan systems with cooling capacity greater than or equal to 270,000 Btu/h (79.1 kW) in buildings having a Group R occupancy. A narrative description of the activities that will be accomplished during each phase of. 3.2. Exception: Tubular pipe insulation shall not be required on the following: The maximum allowable piping length from the nearest source of heated water to the termination of the fixture supply pipe shall be in accordance with the following. Combination units not covered by the National Appliance Energy Conservation Act of 1987 (NAECA) (3-phase power or cooling capacity greater than or equal to 65,000 Btu/h [19 kW]) shall comply with either rating. ICF proprietary and confidential. The 2018 IECC Performance pathway, provides a mechanism for exceeding 40% fenestration. IECC 2018 Daylight Zone Requirements IECC 2018 Daylight Zone Requirements: Sidelighted daylight zones must be controlled separately from toplighted zones. A schedule for inspecting and recalibrating all lighting controls. Dwelling units are excluded. (747 Pa) shall be insulated and sealed in accordance with. The ratio between the capacities used in the annual simulations and the capacities determined by sizing runs shall be the same for both the standard reference design and proposed design. Low-sloped roofs directly above cooled conditioned spaces in Climate Zones 1, 2 and 3 shall comply with one or more of the options in Table C402.3. Closed-circuit dry coolers shall be considered to be air cooled. Where Items 1 through 3 are not met, SWHF = 1.0. They shall incorporate an automatic holiday setback feature. Where 30 percent or more of the tested controls fail, all remaining identical combinations shall be tested. Ventilation provided only for process loads. hp = The maximum combined motor nameplate horsepower. Systems exhausting toxic, flammable, paint or corrosive fumes or dust. Where there are multiple designs, materials or devices that the simulation program does not model, each shall be calculated separately and exceptional savings determined for each. 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.) Tubular pipe insulation shall be installed in accordance with the insulation manufacturer's instructions. FL = Full-load kW/ton value as specified in Table C403.3.2(7). Energy Code Advisory Council Timeline to adopt/amend 2018 IECC Sept 22, 2017 –2018 IECC available to public Dec 2017 –ECAC independent, preliminary review Jan 1, 2018 –Solicitation for amendments opens Feb –Apr, 2018 –Subcommittee meetings Mar 31, 2018 –Solicitation period closes May 2018 –ECAC Review Residential Subcommittee done The volume from the nearest source of heated water to the termination of the fixture supply pipe shall be as follows: Demand recirculation water systems shall have controls that comply with both of the following: Time switches or other control methods that can automatically turn off and on heaters and pump motors according to a preset schedule shall be installed for heaters and pump motors. Direct buried piping that conveys fluids at or below 60°F (15°C). Requirements C405.6 - Transformers C405.7 - Elect Motors C405.8 - Trans Systems C405.9 - Voltage Drop 2018 IECC –Option: Performance. C403.7.4 Energy Recovery Ventilation Systems. HVAC systems and components, and other opaque objects mounted above the roof. For each airstream, (2.2 x energy recovery effectiveness - 0.5) inch w.c. Evaporative humidifier/cooler in series with another. Occupancies or applications requiring precision in indoor temperature control as.

2018 iecc economizer requirements

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2018 iecc economizer requirements 2020