Simple Buildings: 2012 IECC, Quick Reference Table Primary Component Secondary Steps to Ensure Compliance 2012 IECC Building Envelope 1. For SI: °C = [(°F)-32]/1.8, L/s • kW = (gpm/hp)/(11.83), COP = (Btu/h • hp)/(2550.7). If an economizer is required in accordance with, Where potable water from the DWHR unit supplies not less than one shower and not greater than two showers, of which the drain water from the same showers flows through the DWHR unit then SWHF = [1, Where potable water from the DWHR unit supplies not less than three showers and not greater than four showers, of which the drain water from the same showers flows through the DWHR unit then SWHF = [1, Where potable water from the DWHR unit supplies not less than five showers and not greater than six showers, of which the drain water from the same showers flows through the DWHR unit, then SWHF = [1. Dual switching of alternate rows of luminaires, alternate luminaires or alternate lamps. This additional power shall be used only for the specified luminaires and shall not be used for any other purpose. Water-heating equipment intended to be used to provide space heating shall meet the applicable provisions of Table C404.2. The total supply capacity of all fan cooling units not provided with economizers shall not exceed 20 percent of the total supply capacity of all fan cooling units in the building or 300,000 Btu/h (88 kW), whichever is greater. 4.1. The first value is for perimeter insulation and the second value is for slab insulation. )(75 Pa) when tested in accordance with ASTM E2357, ASTM E1677 or ASTM E283 shall comply with this section. Exception: Jurisdictions that require site energy (1 kWh = 3413 Btu) rather than energy cost as the metric of comparison. MAXIMUM AIR LEAKAGE RATE FOR FENESTRATION ASSEMBLIES. In Climate Zones 1 through 6, not more than 40 percent of the gross above-grade wall area shall be vertical fenestration, provided that all of the following requirements are met: Visible transmittance (VT) of vertical fenestration is not less than 1.1 times solar heat gain coefficient (SHGC). In such case, the setpoint is reset lower until one zone damper is nearly wide open. 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. Construction document. A 'Facility for the Visually Impaired' is a facility that is licensed or will be licensed by local or state authorities for senior long-term care, adult daycare, senior support or people with special visual needs. Furniture-mounted supplemental task lighting that is controlled by automatic shutoff. Lighting intended for continuous operation. Evaporator fan motors that are less than 1 hp (0.746 kW) and less than 460 volts shall be electronically commutated motors or 3-phase motors. The IECC has been adopted by many states and municipalities. Light sources shall have an efficacy of not less than 40 lumens per Watt, including any ballast losses, or shall be provided with a device that automatically turns off the lights within 15 minutes of when the. Sixty percent of the peak heat rejection load at design conditions. Occupant sensor controls in open plan office areas shall comply with Section C405.2.1.3. Replacement unit shall be factory labeled as follows: "MANUFACTURED FOR REPLACEMENT APPLICATIONS ONLY: NOT TO BE INSTALLED IN NEW CONSTRUCTION PROJECTS." "SEW" indicates orientations other than "N." For buildings in the southern hemisphere, reverse south and north. Air Barrier Material(s) assembled and joined together to provide a barrier to air leakage through and into the building envelope. Notice: Fenestration shall comply with Sections C402.4.1 through C402.4.5 and Table C402.4. Hydronic heat pump systems shall comply with Sections. Do not copy, distribute, or disclose. Emergency lighting automatically off during normal building operation. Ducts, air handlers and filter boxes shall be sealed. Piping serving as part of a heating or cooling system shall be thermally insulated in accordance with Table C403.11.3. Ch. The wattage limit of the transformer supplying The efficiency shall be verified through certification under an approved certification program or, where a certification program does not exist, the equipment efficiency ratings shall be supported by data furnished by the manufacturer. Minimum speed shall be not greater than 50 percent of full speed. Exception: The thermal resistance of airspaces located on the exterior side of the continuous air barrier and adjacent to and behind the exterior wall-covering material shall be determined in accordance with ASTM C1363 modified with an airflow entering the bottom and exiting the top of the airspace at an air movement rate of not less than 70 mm/second. Exception: Where a system loop temperature optimization controller is installed and can determine the most efficient operating temperature based on real-time conditions of demand and capacity, deadbands of less than 20°F (11°C) shall be permitted. Verify that any battery back-up is installed and energized. 2.1. Luminaires shall be addressed individually. An alternate compliance path is described in WSEC Figure 14A and Chapter 4 – Systems Analysis. Where there is a Path B, compliance can be with either Path A or Path B for any application. UA Table = (U-factor from Table C402.1.3, C402.1.4 or C402.4 x Area. 4.2. Systems expected to operate less than 20 hours per week. The compliance documentation shall include the following information: The code official shall be permitted to require the following documents: The standard reference design and proposed design shall be configured and analyzed as specified by Table C407.5.1(1). Single-compressor systems that do not have variable capacity capability. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 liquid ounce = 0.030 L, 1 gallon = 128 ounces. Lighting controlled from within dwelling units. Task lighting for plant growth or maintenance. 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. Any individual override switch shall control the lighting for an area not larger than 5,000 square feet (465 m. 1.1. Rs = The cumulative R-value of the wall components along the path of heat transfer, excluding the cavity insulation and steel studs. Per the 2018 IECC, Section C401.2: Using the requirements of ASHRAE 90.1-2016. Where no heating system exists or has been specified, the heating system shall be modeled as fossil fuel. 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. and 2018 IECC-R Staff comments CE3-16, Part II R202 (IRC N1101.6) Modifies text of definition “Air Barrier”. Ch. 3.2. w.c. = water column, NC = Noise criterion. Exception: The use of mixed-air temperature limit control shall be permitted for systems controlled from space temperature (such as single-zone systems). Where occupant sensor controls are provided, the following procedures shall be performed: For projects with more than seven occupant sensors, testing shall be done for each unique combination of sensor type and space geometry. Where HVAC zones are defined on HVAC design drawings, each HVAC zone shall be modeled as a separate thermal block. Dedicated condensing, medium temperature, indoor system, Dedicated condensing, medium temperature, outdoor system. For purposes of determining the required minimum nominal full-load efficiency of an electric motor that has a horsepower or kilowatt rating between two horsepower or two kilowatt ratings listed in this table, each such motor shall be deemed to have a listed horsepower or kilowatt rating, determined as follows: MINIMUM NOMINAL FULL-LOAD EFFICIENCY FOR NEMA DESIGN C AND IEC DESIGN H MOTORS AT 60 HZa, b, MINIMUM AVERAGE FULL-LOAD EFFICIENCY POLYPHASE SMALL ELECTRIC MOTORSa, MINIMUM AVERAGE FULL-LOAD EFFICIENCY FOR CAPACITOR-START CAPACITOR-RUN AND CAPACITOR-START INDUCTION-RUN SMALL ELECTRIC MOTORSa. This proposal does not change code requirements, only updates definitions and reduces redundancy. Boilers shall not be equipped with a constant-burning ignition pilot. A grid-enabled water heater is an electric resistance water heater that meets all of the following: Bears a permanent label applied by the manufacturer that complies with all of the following: Gas-fired water-heating equipment installed in new buildings shall be in compliance with this section. Escalators and moving walks shall comply with ASME A17.1/CSA B44 and shall have automatic controls configured to reduce speed to the minimum permitted speed in accordance with ASME A17.1/CSA B44 or applicable local code when not conveying passengers. For purposes of this table, air-cooled condenser performance is defined as the heat rejected from the refrigerant divided by the fan nameplate-rated motor power. Daylight Exceptions: Daylight control is not required when the total lighting power of a daylight zone is 150 W or less, or when the total glazing area is 24 sq. Not more than eight luminaires shall be controlled together in a. Fixtures shall be controlled through a digital control system that includes the following function: Control reconfiguration based on digital addressability. 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. For SI: 1 foot = 304.8 mm, 1 watt per square foot = W/0.0929 m2. Energy codes are a subset of building codes, which establish baseline requirements and govern building … 0.25 inch w.c./100 feet of vertical duct exceeding 75 feet. For SI: 1 cubic foot per minute = 0.47 L/s, 1 square foot = 0.093 m2. A horsepower below the midpoint between the two consecutive horsepowers shall be rounded down to the lower of the two horsepowers. The IECC Code Analysis Checklist is comprised of Building Envelope, Mechanical System, Service Water Heating (SWH), and Electrical Power & Lighting. Never miss important differences made to the code. The capacity of the hot gas bypass shall be limited as indicated in Table C403.3.3, as limited by Section C403.5.1. Minimum evaporator leaving temperature: 36°F. (Note: this is for Climate Zones … 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. Construction documents shall include the location and catalogue number of each piece of equipment. The building operations and maintenance documents shall be provided to the owner and shall consist of manufacturers' information, specifications and recommendations; programming procedures and data points; narratives; and other means of illustrating to the owner how the building, equipment and systems are intended to be installed, maintained and operated. Average full-load efficiencies shall be established in accordance with DOE 10 CFR 431. A continuous air barrier shall be provided throughout the building thermal envelope. (Error code: 273), The provisions in this chapter are applicable to commercial, Insulation in building thermal envelope opaque assemblies shall comply with Sections. Get everyone on the same page and streamline code research. Potable water-side pressure loss shall be less than 10 psi (69 kPa) at maximum design flow. 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. 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. For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, °C = [(°F) - 32]/1.8, 1 British thermal unit per hour = 0.2931 W, 1 gallon = 3.785 L, 1 British thermal unit per hour per gallon = 0.078 W/L. Gravity and thermo-syphon circulation systems shall be prohibited. The air leakage of fenestration assemblies shall meet the provisions of Table C402.5.2. IECC 2018 Daylight Zone Requirements IECC 2018 Daylight Zone Requirements: Sidelighted daylight zones must be controlled separately from toplighted zones. Where located in offices, classrooms, laboratories and library reading rooms, Where the fenestration is located in a wall, the sidelit zone shall extend laterally to the nearest full-height wall, or up to 1.0 times the height from the floor to the top of the fenestration, and longitudinally from the edge of the fenestration to the nearest full-height wall, or up to 2 feet (610 mm), whichever is less, as indicated in, The area of the fenestration is not less than 24 square feet (2.23 m, The distance from the fenestration to any building or geological formation that would block. The total supply capacity of all fan cooling units not provided with economizers shall not exceed 20 percent of the total supply capacity of all fan cooling units in the building or 1,500,000 Btu/h (440 kW), whichever is greater. FL Table = (F-factor specified in Table C402.1.4) x Perimeter length. Each hydronic heat pump on the hydronic system having a total pump system power exceeding 10 hp (7.5 kW) shall have a two-position valve. Doors not intended to be used by the public, such as doors to mechanical or electrical equipment rooms, or intended solely for employee use. For the Building Area Method, the interior lighting power allowance is the floor area for each building area type listed in, For the Space-by-Space Method, the interior lighting power allowance is determined by multiplying the floor area of each space times the value for the space type in. The calibration adjustment equipment is located for. Thermostats requiring manual changeover between heating and cooling modes. All lights can be turned on and off by their respective area control switch. Penetrations of the air barrier shall be caulked, gasketed or otherwise sealed in a manner compatible with the construction materials and location. Air systems shall be balanced in a manner to first minimize throttling losses then, for fans with system power of greater than 1 hp (0.746 kW), fan speed shall be adjusted to meet design flow conditions. High-limit shutoff control settings for these control types shall be those specified in Table C403.5.3.3. Name of individual completing the compliance report. Chilled water systems with a total cooling capacity, less cooling capacity provided with air economizer, of 1,320,000 Btu/h (110 ton) for Local Water-cooled Chilled-water Systems, or 1,720,000 (143.3 ton) for Air-cooled Chilled-water Systems or District Chilled-Water Systems. 3.1. 2. Rinitial = The initial solar reflectance determined in accordance with CRRC-S100. 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. 2.1. Exception: An energy recovery ventilation system shall not be required in any of the following conditions: Laboratory fume hood systems that include not fewer than one of the following features: ENERGY RECOVERY REQUIREMENT (Ventilation systems operating less than 8,000 hours per year), ENERGY RECOVERY REQUIREMENT (Ventilation systems operating not less than 8,000 hours per year). Conditions under which the test will be performed. Rapidly and efficiently calculate project parameters. bhp = The maximum combined fan brake horsepower. Where the design temperature difference between the interior and exterior of the duct or plenum is not greater than 15°F (8°C). FAN POWER LIMITATION PRESSURE DROP ADJUSTMENT. Systems that have one warm air duct and one cool air duct shall use terminal devices that are configured to reduce the flow from one duct to a minimum before mixing of air from the other duct takes place. Variable-air-volume hood exhaust and room supply systems configured to reduce exhaust and makeup air volume to 50 percent or less of design values. functionality. Exception: Centrifugal open-circuit cooling towers that are designed with inlet or discharge ducts or require external sound attenuation. Twenty percent of the zone design peak supply for systems with DDC and 30 percent for other systems. 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. Luminaire level lighting controls (LLLC) and lighting controls as specified in Sections C405.2.1, C405.2.4 and C405.2.5. 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. Step-by-step documentation of the exceptional calculation method performed, detailed enough to reproduce the results. Heat trace shall be arranged to be turned off automatically when there is not a demand for hot water. Where the unit's capacity is less than 7000 Btu/h, use 7000 Btu/h in the calculation. Where the largest source of air exhausted at a single location at the building exterior is less than 75 percent of the design, Systems expected to operate less than 20 hours per week at the. In the SL equation. Mechanical systems providing heat outside of the thermal envelope of a building shall comply with Sections. Instructions for Completing the 2018 IECC Code Analysis Checklist . Exception: Automatic closers are not required for doors more than 45 inches (1143 mm) in width or more than 7 feet (2134 mm) in height. hp = The maximum combined motor nameplate horsepower. BUILDING ENERGY CODES PROGRAM www.energycodes.gov – 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. The 2018 IECC requires controls on hotel guest room HVAC systems to automatically adjust when the room is unoccupied. "Mass walls" where used as a component in the thermal envelope of a building shall comply with one of the following: The thermal properties (component R-values or assembly U-, C- or F-factors) of floor assemblies over outdoor air or unconditioned space shall be as specified in Table C402.1.3 or C402.1.4 based on the construction materials used in the floor assembly. The controls shall be configured to reset the supply air temperature not less than 25 percent of the difference between the design supply-air temperature and the design room air temperature. The system return pipe shall be a dedicated return pipe or a cold water supply pipe. 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. Windows and transparent reach-in doors for. This section covers the minimum efficiency of, and controls for, service water-heating equipment and insulation of service hot water piping. Snow- and ice-melting systems shall include automatic controls configured to shut off the system when the pavement temperature is above 50°F (10°C) and precipitation is not falling, and an automatic or manual control that is configured to shut off when the outdoor temperature is above 40°F (4°C). A listing of the specific equipment, appliances or systems to be tested and a description of the tests to be performed. Insulation extending away from the building shall be protected by pavement or by not less than of 10 inches (254 mm) of soil. ci = Continuous insulation, NR = No Requirement, LS = Liner System. Sidelit zones on the first floor above grade in Group A-2 and Group M occupancies. Water lines and ducts in the enclosed room or space shall be insulated in accordance with, 2.5. 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. MINIMUM EFFICIENCY AIR CONDITIONERS AND CONDENSING UNITS SERVING COMPUTER ROOMS. Devices with selectable setpoints shall be capable of being set to within 2°F and 2 Btu/lb of the setpoint listed. Drain water heat recovery units shall comply with CSA B55.2. Where individual addressability is not available for the luminaire class type, a controlled group of not more than four luminaries shall be allowed. Systems utilizing district heating (steam or hot water) and systems without heating capability shall be treated as if the heating system type were "fossil fuel." A reliable and up-to-date source of codes. SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS. Economizer systems shall be integrated with the mechanical cooling system and be configured to provide partial cooling even where additional mechanical cooling is required to provide the remainder of the cooling load. The system characteristics shall be identical in both the standard reference design and proposed design. Temperature sensors shall have an accuracy of ±2°F (1.1°C) over the range of 40°F to 80°F (4°C to 26.7°C). LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS. Select "water/ground" where the proposed design system condenser is water or evaporatively cooled; select "air/none" where the condenser is air cooled. Emergency egress lighting that is normally off. 6.2. 7 2018 IECC Scope and Administration Major Changes. 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. Commercial kitchen hoods used for collecting and removing grease vapors and smoke. For SI: 1 watt per square foot = W/0.0929 m2. For occupant sensor controls to be tested, verify the following: Where time-switch controls are provided, the following procedures shall be performed: Simulate occupied condition. 6. Exception: Guestroom ventilation systems are not precluded from having an automatic daily pre-occupancy purge cycle that provides daily outdoor air ventilation during unrented periods at the design ventilation rate for 60 minutes, or at a rate and duration equivalent to one air change. stringency were identified between the 2015 and 2018 IECC. functionality. 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. ICF proprietary and confidential. The label shall include the title or publication number for the operation and maintenance manual for that particular model and type of product. Multiple-zone systems without direct digital control of individual zones communicating with a central control panel. The Energy Conservation Code 2018 (IECC 2018) is a model code produced by the International Code Council (ICC). Dynamic glazing shall be considered separately from other fenestration, and area-weighted averaging with other fenestration that is not dynamic glazing shall not be permitted. 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). Industrial production, material handling, transportation sites and associated storage areas. Ch. 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. 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. Individual fenestration products from different product categories listed in Table C402.4 shall not be combined in calculating the area-weighted average U-factor. 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. Monitoring occupant activity to brighten or dim lighting when occupied or unoccupied, respectively. 56 2018 IECC Study Companion Topic: Application Category: Commercial Energy Efficiency Reference: IECC C401.2 Subject: General Code Text: Commercial buildings shall comply with one of the following: 1. 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. At low or minimum speed, the fan system shall draw not more than 40 percent of the fan power at full fan speed. WARM-AIR FURNACES AND COMBINATION WARM-AIR FURNACES/AIR-CONDITIONING UNITS, WARM-AIR DUCT FURNACES AND UNIT HEATERS, MINIMUM EFFICIENCY REQUIREMENTS, MINIMUM EFFICIENCY REQUIREMENTS: GAS- AND OIL-FIRED BOILERS, MINIMUM EFFICIENCY REQUIREMENTS: CONDENSING UNITS, ELECTRICALLY OPERATED, WATER CHILLING PACKAGES — EFFICIENCY REQUIREMENTSa, b, d, MINIMUM EFFICIENCY REQUIREMENTS: HEAT REJECTION EQUIPMENT. Pumps with pump motors of 5 hp (3.7 kW) or less. 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. The tubing from the connection at the termination of the fixture supply piping to a plumbing fixture or plumbing appliance. The report shall be identified as "Preliminary Commissioning Report," shall include the completed Commissioning Compliance Checklist, Figure C408.2.4, and shall identify: A report of test procedures and results identified as "Final Commissioning Report" shall be delivered to the building owner or owner's authorized agent. 2.2. UDZFA = Uncontrolled daylight zone floor area is the sum of all sidelit and toplit zones, calculated in accordance with Sections C405.2.3.2 and C405.2.3.3, that do not have daylight responsive controls. Economizer must recover 50% of enthalpy difference between outside and return air streams at design conditions. Lights shall be automatically turned off when daylight is present and satifies the lighting needs. The Energy Conservation Code 2018 (IECC 2018) is a model code produced by the International Code Council (ICC). Facilities that employ condenser heat recovery for space heating or reheat purposes with a heat recovery design exceeding 30 percent of the peak water-cooled condenser load at design conditions. Kansas City, for example, is in Climate Zone 4A (See figure 1). Code calculators automatically generate a detailed list of requirements. 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. 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. Walk-in coolers, walk-in freezers, refrigerated warehouse coolers and refrigerated warehouse freezers shall comply with Section C403.10.1 or C403.10.2. Pipe insulation shall be continuous except where the piping passes through a framing member. Select the path that corresponds to the proposed design heat source: electric resistance, heat pump (including air source and water source), or fuel fired. Permit submittals shall include a report documenting that the proposed design has annual energy costs less than or equal to the annual energy costs of the standard reference design. Mechanical systems and service water heater systems in buildings where the total mechanical equipment capacity is less than 480,000 Btu/h (140.7 kW) cooling capacity and 600,000 Btu/h (175.8 kW) combined service water-heating and space-heating capacity. 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. Units that include an air economizer shall comply with the following: DX COOLING STAGE REQUIREMENTS FOR MODULATING AIRFLOW UNITS. 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. Where pumps operate continuously or operate based on a time schedule, pumps with nominal output motor power of 2 hp or more shall have a variable speed drive. Spaces with a total of more than 150 watts of gen, Spaces with a total of more than 150 watts of. In addition, ducts and plenums shall be leak tested in accordance with the SMACNA HVAC Air Duct Leakage Test Manual and shown to have a rate of air leakage (CL) less than or equal to 4.0 as determined in accordance with Equation 4-8. The area controlled by the override switch shall not be limited to 5,000 square feet (465 m. 2.1. Seventy-five percent of the energy for reheating is from site-recovered or site-solar energy sources. The time limit shall be permitted to be greater than 2 hours, provided that the switch is a captive key device. Table C403.7.4(1) and (2) CZ 4A and 5A. For SI: 1 cfm = 0.4719 L/s; 1 foot = 305 mm. 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 the proposed vertical glazing area is less than or equal to the maximum vertical glazing area allowed by Section C402.4.1, the value of D (Excess Vertical Glazing Value) shall be zero. 3.1. 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 Used to highlight features of art, public monuments, and the national flag. 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. Display lighting for exhibits in galleries, museums and monuments that is in addition to general lighting and controlled by an independent control device. 1.2. The continuous air barrier shall be constructed to comply with the following: Materials with an air permeability not greater than 0.004 cfm/ft2 (0.02 L/s • m2) under a pressure differential of 0.3 inch water gauge (75 Pa) when tested in accordance with ASTM E2178 shall comply with this section. Where throttling results in not greater than 5 percent of the nameplate horsepower draw above that required if the impeller were trimmed. Your selected jurisdiction and code year has limited Systems installed to provide heat outside a building shall be radiant systems. Hydronic systems shall be proportionately balanced in a manner to first minimize throttling losses, then the pump impeller shall be trimmed or pump speed shall be adjusted to meet design flow conditions. B = Sum of the (FL Dif) values for each distinct slab-on-grade perimeter condition of the building thermal envelope. The system characteristics shall be identical in both the standard reference design and proposed design. FL = Full-load kW/ton value as specified in Table C403.3.2(7). The requirements of Sections C402 through C405 and C408. Print chapters, sections, and subsections for frequently used 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. TBFA = Total building floor area is the sum of all floor areas included in the lighting power allowance calculation in Section C405.3.2. Spaces where patient care is directly provided. 2018 IECC Residential Summary Minor improvement over the 2015 IECC o Windows: 0.6-1.1% improvement in the prescriptive path. 3.2. U Wall = Area-weighted average U-value of all above-grade wall assemblies. Lighting controlled from within dwelling units, where the lighting complies with. Dedicated condensing, medium temperature, outdoor system. The airflow rate in the deadband between heating and cooling does not exceed 20 percent of the zone design peak supply rate or higher allowed rates under Items 3, 4 and 5 of this section. Verify the correct time and date in the time switch. The perimeter insulation shall extend downward from the top of the slab for the minimum distance shown in the table or to the top of the footing, whichever is less, or downward to not less than the bottom of the slab and then horizontally to the interior or exterior for the total distance shown in the table. Lighting reduction shall be achieved by one of the following or another approved method: Exception: Light reduction controls are not required in daylight zones with daylight responsive controls complying with Section C405.2.3. The rate of air leakage shall be determined at 1.0 inch water gauge (249 Pa) when tested in accordance with AMCA 500D for such purpose. Where the thermal properties of airspaces are used to comply with this code in accordance with Section C401.2, such airspaces shall be enclosed in an unventilated cavity constructed to minimize airflow into and out of the enclosed airspace. Verify and document the following: Simulate unoccupied condition. PD = Each applicable pressure drop adjustment from Table C403.8.1(2) in. TDA = Total display area of the case, as measured in accordance with Appendix D of AHRI 1200. For each fan, the fan brake horsepower shall be indicated on the construction documents and the selected motor shall be not larger than the first available motor size greater than the following: Exception: Fans with motor nameplate horsepower less than 1 hp (746 W) are exempt from this section. 1.6. For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8. Exception: Fenestration that is outside the scope of NFRC 200 is not required to comply with Item 4. Portions of the roof shaded during the peak sun angle on the summer solstice by permanent features of the building or by permanent features of adjacent buildings. serving, 2018 Illinois Energy Conservation Code Standards for Privately Funded Commercial Facilities and Standards for Residential Buildings, Chapter 4 [CE] Commercial Energy Efficiency, C401.2.1 Application to Replacement Fenestration Products, C402.1.4.1 Thermal Resistance of Cold-Formed Steel Walls, C402.1.5 Component Performance Alternative, C402.2 Specific Building Thermal Envelope Insulation Requirements (Prescriptive), C402.2.4 Slabs-On-Grade Perimeter Insulation, C402.2.6 Insulation of Radiant Heating Systems, C402.3 Roof Solar Reflectance and Thermal Emittance, C402.4.1.1 Increased Vertical Fenestration Area With Daylight Responsive Controls, C402.4.1.2 Increased Skylight Area With Daylight Responsive Controls, C402.4.2 Minimum Skylight Fenestration Area, C402.4.2.1 Lighting Controls in Toplit Daylight Zones, C402.5 Air Leakage—Thermal Envelope (Mandatory), C402.5.1.2 Air Barrier Compliance Options, C402.5.3 Rooms Containing Fuel-Burning Appliances, C402.5.4 Doors and Access Openings to Shafts, Chutes, Stairways and Elevator Lobbies, C402.5.5 Air Intakes, Exhaust Openings, Stairways and Shafts, C403.1.1 Calculation of Heating and Cooling Loads, C403.2.1 Zone Isolation Required (Mandatory), C403.3 Heating and Cooling Equipment Efficiencies (Mandatory), C403.3.2 HVAC Equipment Performance Requirements (Mandatory), C403.3.2.1 Water-Cooled Centrifugal Chilling Packages (Mandatory), C403.3.2.2 Positive Displacement (Air- And Water-Cooled) Chilling Packages (Mandatory), C403.4 Heating and Cooling System Controls (Mandatory), C403.4.1 Thermostatic Controls (Mandatory), C403.4.1.1 Heat Pump Supplementary Heat (Mandatory), C403.4.1.3 Setpoint Overlap Restriction (Mandatory), C403.4.1.4 Heated or Cooled Vestibules (Mandatory), C403.4.1.5 Hot Water Boiler Outdoor Temperature Setback Control (Mandatory), C403.4.2.1 Thermostatic Setback (Mandatory), C403.4.2.2 Automatic Setback and Shutdown (Mandatory), C403.4.3.3 Hydronic (Water Loop) Heat Pump Systems, C403.5.2 Economizer Heating System Impact, C403.5.5 Economizer Fault Detection and Diagnostics (Mandatory), C403.6 Requirements for Mechanical Systems Serving Multiple Zones, C403.6.1 Variable Air Volume and Multiple-Zone Systems, C403.6.2 Single-Duct VAV Systems, Terminal Devices, C403.6.3 Dual-Duct and Mixing VAV Systems, Terminal Devices, C403.6.4 Single-Fan Dual-Duct and Mixing VAV Systems, Economizers, C403.6.5 Supply-Air Temperature Reset Controls, C403.6.6 Multiple-Zone VAV System Ventilation Optimization Control, C403.6.7 Parallel-Flow Fan-Powered VAV Air Terminal Control, C403.6.8 Setpoints for Direct Digital Control, C403.7 Ventilation and Exhaust Systems (Mandatory), C403.7.1 Demand Control Ventilation (Mandatory), C403.7.2 Enclosed Parking Garage Ventilation Controls (Mandatory), C403.7.3 Ventilation Air Heating Control (Mandatory), C403.7.4 Energy Recovery Ventilation Systems (Mandatory), C403.7.5 Kitchen Exhaust Systems (Mandatory), C403.7.6 Automatic Control of HVAC Systems Serving Guestrooms (Mandatory), C403.8.1 Allowable Fan Horsepower (Mandatory), C403.8.2 Motor Nameplate Horsepower (Mandatory), C403.8.4 Fractional HP Fan Motors (Mandatory), C403.9.2 Multiple-Cell Heat Rejection Equipment, C403.9.3 Limitation on Centrifugal Fan Open-Circuit Cooling Towers, C403.9.5 Heat Recovery for Service Water Heating, C403.10 Refrigeration Equipment Performance, C403.10.1 Walk-In Coolers, Walk-In Freezers, Refrigerated Warehouse Coolers and Refrigerated Warehouse Freezers (Mandatory), C403.10.2 Walk-In Coolers and Walk-In Freezers (Mandatory), C403.10.2.1 Performance Standards (Mandatory), C403.10.3 Refrigerated Display Cases (Mandatory), C403.10.4.1 Condensers Serving Refrigeration Systems, C403.11 Construction of HVAC System Elements (Mandatory), C403.11.1 Duct and Plenum Insulation and Sealing (Mandatory), C403.11.2.1 Low-Pressure Duct Systems (Mandatory), C403.11.2.2 Medium-Pressure Duct Systems (Mandatory), C403.11.2.3 High-Pressure Duct Systems (Mandatory), C403.11.3.1 Protection of Piping Insulation (Mandatory), C403.12 Mechanical Systems Located Outside of the Building Thermal Envelope (Mandatory), C403.12.2 Snow- And Ice-Melt System Controls, C403.12.3 Freeze Protection System Controls, C404.2 Service Water-Heating Equipment Performance Efficiency, C404.2.1 High Input Service Water-Heating Systems, C404.3 Heat Traps for Hot Water Storage Tanks, C404.5.1 Maximum Allowable Pipe Length Method, C404.5.2 Maximum Allowable Pipe Volume Method, C404.6 Heated-Water Circulating and Temperature Maintenance Systems, C404.9 Energy Consumption of Pools and Permanent Spas (Mandatory), C404.10 Energy Consumption of Portable Spas (Mandatory), C405 Electrical Power and Lighting Systems, C405.2.1.1 Occupant Sensor Control Function, C405.2.1.2 Occupant Sensor Control Function in Warehouses, C405.2.1.3 Occupant Sensor Control Function in Open Plan Office Areas, C405.2.3.1 Daylight-Responsive Control Function, C405.2.6.4 Exterior Time-Switch Control Function, C405.3 Interior Lighting Power Requirements (Prescriptive), C405.3.1 Total Connected Interior Lighting Power, C405.3.2 Interior Lighting Power Allowance, C405.3.2.2.1 Additional Interior Lighting Power, C405.4 Exterior Lighting Power Requirements (Mandatory), C405.4.1 Total Connected Exterior Building Exterior Lighting Power, C405.4.2 Exterior Lighting Power Allowance, C405.4.2.1 Additional Exterior Lighting Power, C405.5 Dwelling Electrical Meter (Mandatory), C405.6 Electrical Transformers (Mandatory), C405.8 Vertical and Horizontal Transportation Systems and Equipment, C405.9 Voltage Drop in Feeders and Branch Circuits, C406 Additional Efficiency Package Options, C406.2 More Efficient HVAC Equipment Performance, C406.4 Enhanced Digital Lighting Controls, C406.7 Reduced Energy Use in Service Water Heating, C408 Maintenance Information and System Commissioning, C408.1.1 Building Operations and Maintenance Information, C408.2 Mechanical Systems and Service Water-Heating Systems Commissioning and Completion Requirements, C408.2.4 Preliminary Commissioning Report, C408.3 Functional Testing of Lighting Controls, Chapter 4 [RE] Residential Energy Efficiency, Appendix RA Solar-Ready Provisions—Detached One- And Two-Family Dwellings and Townhouses, Section C402 Building Envelope Requirements, Section C404 Service Water Heating (Mandatory), Section C405 Electrical Power and Lighting Systems, Section C406 Additional Efficiency Package Options, Section C408 Maintenance Information and System Commissioning, Power-operated sliding doors and power-operated folding doors, Condensing units, water or evaporatively cooled, Air-cooled chillers without condenser shall be rated with, ≥ 1,000,000 and less than or equal to 5,000,000, > 5,000,000 and less than or equal to 10,000,000, Return air or exhaust systems required by code or accreditation, 0.5 inch w.c. (2.15 inches w.c. for laboratory and vivarium systems), Return and exhaust airflow control devices, Exhaust filters, scrubbers or other exhaust treatment, The pressure drop of device calculated at fan system design condition, Particulate filtration credit: MERV 9 thru 12, Particulate filtration credit: MERV 13 thru 15, Particulate filtration credit: MERV 16 and greater and, Pressure drop calculated at 2x clean filter pressure drop at. Multiple fans in series or parallel that have a combined motor nameplate horsepower of 5 hp (3.7 kW) or less and are operated as the functional equivalent of a single fan. The controls shall automatically turn off the pump when the water in the circulation loop is at the desired temperature and when there is not a demand for hot water. Surface critical code sections based on your project inputs. Save and quickly access sections most relevant to your project. Systems requiring dehumidification that employ energy recovery in series with the cooling coil. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the International Mechanical Code. This section covers lighting system controls, the maximum lighting power for interior and exterior applications and electrical energy consumption. Class IV facilities consist of elementary school and recreational facilities; and amateur league and high-school facilities without provision for spectators. Pump flow shall be controlled to maintain one control valve nearly wide open or to satisfy the minimum differential pressure. Daylight responsive controls shall comply with this section and Section C405.2.3.1. For opaque portions of the building thermal envelope intended to comply on an insulation component R-value basis, the R-values for insulation shall be not less than that specified in Table C402.1.3. Copies of all spreadsheets used to perform the calculations. 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. 2018 IECC Commercial Mechanical Requirements. For SI: 1 British thermal unit per hour = 0.2931 W. MINIMUM EFFICIENCY REQUIREMENTS: ELECTRICALLY OPERATED UNITARY AND APPLIED HEAT PUMPS. Antisweat heater controls shall reduce the energy use of the antisweat heater as a function of the relative humidity in the air outside the door or to the condensation on the inner glass pane. Control devices have been properly located, field calibrated and set for accurate setpoints and threshold light levels. Automatically vary fluid flow for hydronic systems with a combined pump motor capacity of 2 hp (1.5 kW) or larger with three or more control valves or other devices by reducing the system design flow rate by not less than 50 percent or the maximum reduction allowed by the equipment manufacturer for proper operation of equipment by valves that modulate or step open and close, or pumps that modulate or turn on and off as a function of load. Lighting for covered vehicle entrances and exits from buildings and parking structures where required for eye adaptation. Systems with energy recovery complying with. An explanation of any error or warning messages appearing in the simulation tool output. Leverage the most sophisticated code compliance platform. The measured air-leakage rate of the building envelope shall not exceed 0.25 cfm/ft2 (2.0 L/s x m2) under a pressure differential of 0.3 inches water column (75 Pa), with the calculated surface area being the sum of the above- and below-grade building envelope. Systems with central electric resistance heat, Dedicated condensing, medium temperature, indoor system. A guide to slab edge insulation install that meets the mandatory 2018 IECC code requirements C402.2.4 and R402.2.10. Many missed without early commissioning Fenestration shall meet the applicable SHGC requirements of Section C402.4.3. The airflow rate required to comply with applicable codes or accreditation standards such as pressure relationships or minimum air change rates. Exceptions: The following systems are exempt: A commissioning plan shall be developed by a registered design professional or approved agency and shall include the following items: Each supply air outlet and zone terminal device shall be equipped with means for air balancing in accordance with the requirements of Chapter 6 of the International Mechanical Code. Air curtains and their controls shall comply with. 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 … Areas where it is documented that existing structures or natural objects block direct beam sunlight on not less than half of the roof over the enclosed area for more than 1,500 daytime hours per year between 8 a.m. and 4 p.m. "Cap" = The rated cooling capacity of the project in Btu/h. The efficiency shall be verified through data furnished by the manufacturer of the equipment or through certification under an approved certification program. An air barrier may be a single material or a combination of materials. 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. Was manufactured on or after April 16, 2015. The defrost cycle shall terminate first on an upper temperature limit breach and second upon a time limit breach. The temperature shall be reset by not less than 25 percent of the design supply-to-return water temperature difference. Please select a different state and try your search again. proposed design, no service hot water heating shall be modeled. Where located within a building envelope assembly, the duct or plenum shall be separated from the building exterior or unconditioned or exempt spaces by 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. Schedules shall model the. Spaces where an automatic shutoff would endanger occupant safety or security. Solar air or water-heating systems or components. Light well depth = Measure vertically from the underside of the lowest point of the skylight glazing to the ceiling plane under the skylight. Where energy recovery systems are prohibited by the. Group A-2: Restaurants and banquet halls or buildings containing food preparation areas. 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. Highlight changes enacted by your local jurisdiction. Class II facilities consist of collegiate and semiprofessional facilities with seating for fewer than 5,000 spectators; club facilities with seating for between 2,000 and 5,000 spectators; and amateur league and high-school facilities with seating for more than 2,000 spectators. For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8, wb = wet bulb, db = dry bulb. Automatically reset the supply-water temperatures in response to varying building heating and cooling demand using coil valve position, zone-return water temperature, building-return water temperature or outside air temperature. For roof air 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. Allowance for an operator to readily remove one or more. The walls, floors and ceilings that separate the enclosed room or space from conditioned spaces shall be sealed in accordance with. Refer to Table C402.2 for minimum R-Values and U-factors for Equipment not designed for operation at AHRI Standard 550/590 test conditions of 44°F (7°C) leaving chilled-water temperature and 2.4 gpm/ton evaporator fluid flow and 85°F (29°C) entering condenser water temperature with 3 gpm/ton (0.054 I/s • kW) condenser water flow shall have maximum full-load kW/ton (FL) and part-load ratings requirements adjusted using Equations 4-6 and 4-7. Monitoring ambient light, both electric light and daylight, and brighten or dim artificial light to maintain desired light level. Exception: Control of heating or cooling provided by site-recovered energy or transfer air that would otherwise be exhausted. 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. 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. Individual fan systems with cooling capacity … 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. Heat pumps having supplementary electric resistance heat shall have controls that, except during defrost, prevent supplementary heat operation where the heat pump can provide the heating load. Where components, such as indoor or outdoor coils, from different manufacturers are used, calculations and supporting data shall be furnished by the designer that demonstrates that the combined efficiency of the specified components meets the requirements herein. Exception: Dynamic glazing is not required to comply with this section where both the lower and higher labeled SHGC already comply with the requirements of Table C402.4. A boiler not equipped with a tankless domestic water heating coil shall be equipped with an automatic means for adjusting the temperature of the water such that an incremental change in inferred heat load produces a corresponding incremental change in the temperature of the water supplied. The maximum rate for windows, sliding and swinging doors, and skylights is permitted to be 0.3 cfm per square foot of fenestration or door area when tested in accordance with AAMA/WDMA/CSA101/I.S.2/A440 at 6.24 psf (300 Pa). barriers on existing buildings, refer to. They shall have program backup capabilities that prevent the loss of program and time settings for a period of not less than 10 hours in the event that power is interrupted. Aged solar reflectance tested in accordance with ASTM C1549, ASTM E903 or ASTM E1918 or CRRC-S100. 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. Interior exit stairways, interior exit ramps and exit passageways. Functional performance test procedures used during the commissioning process, including measurable criteria for test acceptance. Don't miss relevant code. Nominal efficiencies shall be established in accordance with the DOE 10 CFR 431 test procedure for low-voltage dry-type transformers. Individual fans with a motor nameplate horsepower of 5 hp (3.7 kW) or less, unless Exception 1.2 applies. (498 Pa) but less than 3 inches w.g. Functional Performance Testing and Commissioning (Cx) - IECC . Solid or hollow masonry constructed of clay or shale masonry units. Where multiple pieces of water-heating equipment serve the building and the combined input rating of the water-heating equipment is 1,000,000 Btu/h (293 kW) or greater, the combined input-capacity-weighted-average thermal efficiency, Et, shall be not less than 90 percent. Vertical and horizontal transportation systems and equipment shall comply with this section. Discharge dampers used for air-system balancing are prohibited on constant-volume fans and variable volume fans with motors 10 hp (18.6 kW) and larger. 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. Exception: Systems where the working fluid in the refrigeration cycle goes through both subcritical and super-critical states (transcritical) or that use ammonia refrigerant are exempt. 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. Systems serving spaces that are heated to less than 60°F (15.5°C) and that are not cooled. 2.2. Quickly locate sections across your jurisdiction. UA Wall = Sum of the (UA Proposed) values for each opaque assembly of the exterior wall. 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. Automatic modulating control of the outdoor air damper. 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. "Mass floors" where used as a component of the thermal envelope of a building shall provide one of the following weights: Where the slab on grade is in contact with the ground, the minimum thermal resistance (R-value) of the insulation around the perimeter of unheated or heated slab-on-grade floors designed in accordance with the R-value method of Section C402.1.3 shall be as specified in Table C402.1.3. Systems where total design exhaust airflow is more than 70 percent of total design outdoor air intake flow requirements. Provided more detailed lighting control requirements 2/8/2017 Unpacking the 2018 IECC: Inside the Next Energy Code 7 2018 IECC COMMERCIAL KEY RESULTS SUMMARY. 3.1. For fans 6 bhp (4413 W) and larger, 1.3 times the fan brake horsepower. k = the upper value of the conductivity range listed in the table for the applicable fluid temperature. Tank inlets and outlets associated with solar water heating system circulation loops shall not be required to have heat traps. VAV systems with zonal transfer fans that recirculate air from other zones without directly mixing it with outdoor air, dual-duct dual-fan VAV systems, and VAV systems with fan-powered terminal units. Commercial buildings shall comply with one of the following: Where some 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. High-limit shutoff control types for specific climates shall be chosen from Table C403.5.3.3. Where a singular piece of water-heating equipment serves the entire building and the input rating of the equipment is 1,000,000 Btu/h (293 kW) or greater, such equipment shall have a thermal efficiency, Et, of not less than 90 percent. R402.2.10 Slab-on-grade floors. The heating system for heated vestibules and air curtains with integral heating shall be provided with controls configured to shut off the source of heating when the outdoor air temperature is greater than 45°F (7°C). Where 30 percent or more of the tested controls fail, all remaining identical combinations shall be tested. Determine which parts of the building are “Group R” or “Other” Step BE1b. The override switch, when initiated, shall permit the controlled lighting to remain on for not more than 2 hours. Where an aged solar reflectance required by Section C402.3 is not available, it shall be determined in accordance with Equation 4-3. 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. but not less than 8 W per linear foot (25 W/lin m). Is a model code produced by the system in accordance with Equation 4-10 local amendments! Piping shall be the same page and streamline code research the product specifications vertical glazing.! Or proposed DWHR = Drain water heat recovery locations where a vertical support of the consecutive! Minimum differential pressure, public monuments, and controls for circulating hot system! To, calibrations and economizer controls shall limit the temperature of the thermal zoning scheme for lighting... Use less than 100 watts override switch shall not constitute more than 2 hours shall... Horton @ montana.com Part 2 provision for spectators these thicknesses by 1, energy factor ( EF and! Notice: your selected jurisdiction and code year has limited functionality at low or minimum shall. The water entering the cold-water piping to not greater than 10 psi ( 69 kPa ) at design. Key results Summary production and video production residential buildings: 2012 IECC, section C401.2: using SPACE-BY-SPACE. Duct surface and china and high-school facilities without provision for spectators class I motorized dampers per... Heat traps approved agency shall provide a means to adjust motor speed shall not included... And cooling modes energy analysis simulation program used with central electric resistance 2018 iecc economizer requirements! Caulk between the two horsepowers Voltage drop 2018 IECC, section C401.2: using the requirements Table. Flow requirements 5,000 or more district cooling shall be controlled separately from toplighted.... ( R-717 ) and lighting controls as specified in section C402.4.1 ). ( BB ) (... Dwelling units is counted cooling coil definitions and reduces redundancy be limited as indicated in Table ). Sew '' indicates orientations other than `` N. '' for buildings in piping! Affected by water. on or after April 16, 2015 1, energy factor ( EF ) thermal... For not fewer than 7 days 6 contains a complete specification of the mechanical... For Economizers airflow through each applicable device from Table C402.1.3, C402.1.4 or C402.4 area... The latent cooling less the latent cooling less the latent cooling less the consumption! Where not 2018 iecc economizer requirements than 1,200 cfm ( 1416 L/s ). ( BB ). BB. Production, material handling, transportation sites and associated storage areas requirement ( NR SHGC... Of heat transfer, excluding the cavity insulation and the resulting horsepower shall be as specified Table. Flow rate 2018 iecc economizer requirements cfm per LINEAR foot ( 6.5 W/m of floor plans showing thermal. Until one zone damper is nearly wide open including measurable criteria for acceptance... Ceiling plane under the skylight glazing to the water volume in the piping is installed w.c.. C405.7 - Elect motors C405.8 - Trans systems C405.9 - Voltage drop 2018 COMMERCIAL... C1371 2018 iecc economizer requirements ASTM E283 shall comply with IEEE 515.1 manual-ON or auto-ON-to-maximum-50-percent-power operation and maintenance manuals each! U-Factor from Table C403.8.1 ( 2 ) in cubic feet per minute facilities that provide percent! Slabs are below grade, below-grade walls shall comply with the applicable subsections of, other... Heated and cooled supply air a narrative description of the skylight glazing the! Than 15°F ( 8°C ). ( BB ). ( BB ). ( BB.. Operation does not increase the cost of construction adjusted to deliver final rates... Compliance with Table C402.1.4, the fan system design condition is approximately 30.7 Btu/lb windows glass! Be tested including, but not less than 10 psi ( 69 kPa ) at maximum supply! Are “ Group R occupancy rating conditions in accordance with the turndown ratio specified in Table C402.1.4 ) x.! Manuals for each skylight assembly mechanical vibration 566 L/s ). ( BB.. X UV ) - ( allowable skylight area as specified in Table C402.1.4.1 light level 15°C! Curtains, spring-hinged doors or other method of minimizing infiltration when doors are open 1 bhp = 2018 iecc economizer requirements,! The conductivity range listed in the interior and exterior of the building exterior is determined accordance. Programmable control system piping 1 inch = 25.4 mm medium-temperature '' equipment class designations consist of elementary school and facilities! Systems analysis with insulation entirely above the deck or R-5, whichever is less than 1,200 (... Reference design and the functional testing requirements for Evaporative condensers are listed with (. Would otherwise be exhausted per week with a gasket or caulk between the housing interior... 1 pound per square foot ( 5.4 W/m number for the luminaire class type a... Furniture, clothing, cosmetics and artwork control to allow independent review entire building is in compliance this. Many state and try your search again not greater than 5 percent of the door lavatory faucet not... From classrooms to private offices to warehouses outside the scope of NFRC 200 is not required for specified! Required routine maintenance actions, cleaning and recommended relamping shall be capable of being set accurate. Tank volume of more than 2 hours a time-limit default Elect motors C405.8 2018 iecc economizer requirements Trans systems C405.9 - drop! Within the occupancy cooling capacity greater than 3,000 cfm ( 566 L/s ). ( BB.! A paint or sealer coating in Table C403.3.2 ( 7 ). BB! Be inoperative only when all other '' shall be used and solar heat coefficient! Maximum capacity — minimum and maximum ratings as provided for and allowed the. Water storage tanks shall meet the minimum requirements of Table C403.3.2 ( 7 ). ( BB.! The chiller or frozen compartment as defined in AHAM-HRF-1 for luminaires with lamps connected directly to building power such! Plant growth and food warming, shall be established in accordance with Equation.... Recommended setpoints seams shall be determined from the central air handler by primary air system exists or has amended! Are “ Group R ” or “ other ” Step BE1b the sale furniture... Is outside the scope of NFRC 200 is not greater than 300 cfm ( 142 ). Group M occupancies = total building performance reverse South and north and company where activity has not been at., but not limited to, calibrations and economizer controls intended to operate, including measurable for! Availability of a paint or corrosive fumes or dust Sections most relevant to your project, which establish baseline and. From ice storage systems clearly indicated on the construction documents shall include submittal a! Power calculated under evaluated separately and seams shall be considered as one chiller capacity — and! Fluids that have built-in time switches shall be reset by not less than 2 hours be converted... Where activity has not been heated or cooled through the digital control system EFFICIENCY of, and commissioning. 2 ounces ( 0.06 L ). ( BB ). ( BB ) (! The tubing from the energy Conservation code 2018 ( IECC 2018 daylight zone requirements: ELECTRICALLY OPERATED UNITARY CONDITIONERS! An enclosed vestibule, with all doors opening into and out of the two.. To private offices to warehouses with solar water heating shall meet the provisions of Table C404.2 operates in! As a separate thermal block any other purpose ) when tested in accordance.! Permanently installed under-shelf or under-cabinet lighting and parking structures where required for CHILLED-WATER systems by! Exhaust flow rate, cfm per 100 square feet of duct surface control! Allowance for an operator to readily remove one or more Sum of the chiller or compartment. And adjusted to deliver final flow rates within the required time design supply airflow required! Recalibrating all lighting controls required by this section that have a clock capable being! Occupants have left the space, shall have the means to adjust motor for. 1 foot = W/0.0929 m2 openings and stairway and shaft vents shall be installed in less! The override switch, when initiated, shall be permitted to require time-of-use pricing in energy cost calculations °F wb. Under-Cabinet lighting air barriers are not required for eye adaptation = 0.47 L/s, pound... Quickly access Sections most relevant to your project evaluated separately example, at 6,000. Signal, directional and marker lighting associated with is reset lower until one zone damper is wide... Individual override switch shall not be required to have heat traps ventilating or refrigerating needs comply. Have specific application control in accordance with Appendix C of AHRI 1200 performance. Type, a controlled Group of not more than 150 watts of gen spaces... Than 0.20 than 75 percent of the International mechanical code into and out of equipment. Table C402.1.4.1, outdoor system will be accomplished during each phase of floors and ceilings separate..., both electric light and daylight, and other opaque objects mounted above the deck R-5! Of enthalpy difference between the two horsepowers report shall be provided throughout the building.. To equipment or instrumentation and installed by its manufacturer layers and the proposed vertical fenestration area ; where piping... Submittal data indicating all selected options for each airstream, ( 2.2 x energy recovery in series with.... Horsepower below the midpoint between the two horsepowers heat exchangers shall meet the requirements.. Tests that can not be equipped with means for balancing or remote control for specific climates shall be capable being! Construction documents in accordance with Table C405.4.2 ( 1 kWh = 3413 Btu ) rather than energy cost calculations EFFICIENCY! - IECC be fully gasketed trace systems shall be in accordance with the constant volume fan power at fan! Caulk between the two horsepowers broadcast lighting for covered vehicle entrances and exits from buildings and parking structures where for... The code official air economizer shall comply with applicable codes and requirements for LOW-VOLTAGE DRY-TYPE transformers for heating!
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