Where public health standards require 24-hour pump operation. Water economizer systems shall be configured to cool supply air by indirect evaporation and providing up to 100 percent of the expected system cooling load at outdoor air temperatures of not greater than 50°F (10°C) dry bulb/45°F (7°C) wet bulb. An air barrier may be a single material or a combination of materials. BUILDING ENERGY CODES www.energycodes.gov Scope Section R101. The calibration adjustment equipment is located for. For, The energy consumption of pools and permanent spas shall be controlled by the requirements in Sections, The electric power to all heaters shall be controlled by an on-off switch that is an integral part of the heater, mounted on the exterior of the heater, or external to and within 3 feet (914 mm) of the heater in a location with. Skylight curbs shall be insulated to the level of roofs with insulation entirely above the deck or R-5, whichever is less. ER = The effective R-value of the cavity insulation with steel studs as specified in Table C402.1.4.1. 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. Cooling towers shall comply with the minimum efficiency listed in the table for that specific type of tower with the capacity effect of any project-specific accessories or options included in the capacity of the cooling tower, For purposes of this table, evaporative condenser performance is defined as the heat rejected at the specified rating condition in the table divided by the sum of the fan motor nameplate power and the integral spray pump nameplate power. 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. Cost Impact: Will not increase the cost of construction. This section covers lighting system controls, the maximum lighting power for interior and exterior applications and electrical energy consumption. and 2018 IECC-R Staff comments CE3-16, Part II R202 (IRC N1101.6) Modifies text of definition “Air Barrier”. SEER and HSPF values are those set by NAECA. UA Wall = Sum of the (UA Proposed) values for each opaque assembly of the exterior wall. The unit shall be configured to report faults to a fault management application available for. 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). Standby loss (SL) is the maximum Btu/h based on a nominal 70°F temperature difference between stored water and ambient requirements. 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. Exception: Fans with fan motors of 1 hp (0.74 kW) or less are not required to be provided with a means for air balancing. 5.3. Occupant sensor controls for all other spaces specified in Section C405.2.1 shall comply with the following: They shall be manual on or controlled to automatically turn on the lighting to not more than 50-percent power. Each hydronic system shall have either the capability to measure pressure across the pump, or test ports at each side of each pump. Electric heat trace systems shall comply with IEEE 515.1. Automatic start controls shall be provided for each HVAC system. functionality. 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. They shall incorporate an automatic holiday setback feature. Strainers, control valves, and balancing valves associated with piping 1 inch (25 mm) or less in diameter. Motors in the airstream within fan coils and terminal units that only provide heating to the space served. 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). 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. Fenestration shall comply with Sections C402.4.1 through C402.4.5 and Table C402.4. Single-compressor systems that do not have variable capacity capability. Mode of operation upon a loss of power and restoration of power. Dedicated condensing, medium temperature, indoor system, Dedicated condensing, medium temperature, outdoor system. Other DX units, including those that control space temperature by modulating the airflow to the space, shall be in accordance with. Functional performance test procedures used during the commissioning process including measurable criteria for test acceptance, provided herein for repeatability. db = dry bulb temperature, °F, wb = wet bulb temperature, °F. 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. 1.2. Pipe insulation shall be continuous except where the piping passes through a framing member. Negotiations between parties led to an easing of the Energy Rating Index Targets combined with improving thermal envelope requirements when using on-site renewables. Generation of an alarm to the system operational location. Used to highlight features of art, public monuments, and the national flag. Lighting integral to equipment or instrumentation and installed by the manufacturer. Exception: Control of heating or cooling provided by site-recovered energy or transfer air that would otherwise be exhausted. Verify the correct time and date in the time switch. 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. 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. Never miss important differences made to the code. 1 or No. 1.2. Where the unit's capacity is less than 7000 Btu/h, use 7000 Btu/h in the calculation. 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. Doors that open directly from a space less than 3,000 square feet (298 m. Doors used primarily to facilitate vehicular movement or material handling and adjacent personnel doors. 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. Insulation for liquid lines with a fluid operating temperature less than 60°F (15.6°C) shall comply with. On both the inlet and outlet piping of a storage water heater or heated water storage tank, the piping to a heat trap or the first 8 feet (2438 mm) of piping, whichever is less, shall be insulated. Table C403.7.4(1) and (2) CZ 4A and 5A. Per the 2018 IECC, Section C401.2: Using the requirements of ASHRAE 90.1-2016. Single-zone variable air volume systems shall comply with the constant volume fan power limitation. Integral to equipment or instrumentation and installed by its manufacturer. Each fan system powered by an individual motor or array of motors with connected power, including the motor service factor, totaling 5 hp (3.7 kW) or more shall have controls and devices configured to automatically modulate the fan speed to control the leaving fluid temperature or condensing temperature and pressure of the heat rejection device. 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. "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. Top 10 Requirements: 2018 IECC Commercial HVAC. 1.1. Has a rated storage tank volume of more than 75 gallons. Where multiples of each unique combination of sensor type and space geometry are provided, not less than 10 percent and in no case fewer than one, of each combination shall be tested unless the code official or design professional requires a higher percentage to be tested. The floor area used for the sale of vehicles, sporting goods and small electronics. 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. Code calculators automatically generate a detailed list of requirements. devices protecting the system. Seventy-five percent of the energy for reheating is from site-recovered or site-solar energy sources. Exceptions: Economizers are not required for the following systems. 1.) 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. Where the simulation program does not model a design, material or device of the proposed design, an exceptional calculation method shall be used where approved by the code official. 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. Time-switch controls to turn off lights during nonbusiness hours. C403.7.4 Energy Recovery Ventilation Systems. Sealing shall allow for expansion, contraction and mechanical vibration. 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. Air and water flow rates shall be measured and adjusted to deliver final flow rates within the tolerances provided in the product specifications. Lighting that is not controlled in accordance with Section C405.2.6.2 shall be controlled so that the total wattage of such lighting is automatically reduced by not less than 30 percent by selectively switching off or dimming luminaires at one of the following times: Time-switch controls for exterior lighting shall comply with the following: The total interior lighting power allowance (watts) is determined according to Table C405.3.2(1) using the Building Area Method, or Table C405.3.2(2) using the Space-by-Space Method, for all areas of the building covered in this permit. U Roof = Area-weighted average U-value of all roof assemblies. Rs = The cumulative R-value of the wall components along the path of heat transfer, excluding the cavity insulation and steel studs. 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. Buildings showing a service hot water load of 10 percent or more of total building energy loads, as shown with an energy analysis as described in. Single-duct VAV systems shall use terminal devices capable of and configured to reduce the supply of primary supply air before reheating or recooling takes place. Assemblies of materials and components with an average air leakage not greater than 0.04 cfm/ft2 (0.2 L/s • m2) under a pressure differential of 0.3 inch of water gauge (w.g. Nominal efficiencies shall be established in accordance with the DOE 10 CFR 431 test procedure for low-voltage dry-type transformers. Occupancies or applications requiring precision in indoor temperature control as. Minimum evaporator leaving temperature: 36°F. 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. Luminaires shall be addressed individually. Steel floor joist systems shall be insulated to R-38. Where sleeping units are excluded from lighting power calculations by application of, Where dwelling units are excluded from lighting power calculations by application of. The volume in the piping shall be determined from the "Volume" column in, Heated-water circulation systems shall be in accordance with. INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS. Climatic conditions required for performance of the deferred tests. 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. A single piece of equipment providing both heating and cooling shall satisfy this provision for one function with the capacity for the other function as small as possible, within available equipment options. 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. Ducts and plenums designed to operate at static pressures equal to or greater than 3 inches water gauge (747 Pa) shall be insulated and sealed in accordance with Section C403.11.1. PD = Each applicable pressure drop adjustment from Table C403.8.1(2) in. for the 2018 IECC Dale Horton Horton Associates 406-239-4196 horton@montana.com Part 2. The IECC Code Analysis Checklist is comprised of Building Envelope, Mechanical System, Service Water Heating (SWH), and Electrical Power & Lighting. 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 Where dynamic glazing is intended to satisfy the SHGC and VT requirements of Table C402.4, the ratio of the higher to lower labeled SHGC shall be greater than or equal to 2.4, and the dynamic glazing shall be automatically controlled to modulate the amount of solar gain into the space in multiple steps. They shall be located where the controlled lights are visible, or shall identify the area served by the lights and indicate their status. Systems serving spaces that are heated to less than 60°F (15.5°C) and that are not cooled. Industrial production, material handling, transportation sites and associated storage areas. (498 Pa) but less than 3 inches w.g. Advises purchasers and end users of the intended and appropriate use of the product with the following notice printed in 16.5 point Arial Narrow Bold font: "IMPORTANT INFORMATION: This water heater is intended only for use as part of an electric thermal storage or demand response program. For lighting track, cable conductor, rail conductor, and plug-in busway systems that allow the addition and relocation of luminaires without rewiring, the wattage shall be one of the following: The wattage of all other luminaires and lighting sources not covered previously and associated with interior lighting verified by data supplied by the manufacturer or other approved sources. Exception: Heat rejection devices where energy usage is included in the equipment efficiency ratings listed in Tables C403.3.2(6) and C403.3.2(7). 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. FL represents the full-load performance requirements and IPLV the part-load performance requirements. Ducts, air handlers and filter boxes shall be sealed. Variable pump flow is not required on dedicated coil circulation pumps where needed for freeze protection. Projects allow you to save customized inputs about your building. This section covers the provision of maintenance information and the commissioning of, and the functional testing requirements for, building systems. The controls shall start the pump upon receiving a signal from the action of a user of a fixture or appliance, sensing the presence of a user of a fixture or sensing the flow of hot or tempered water to a fixture fitting or appliance. High-limit shutoff control settings for these control types shall be those specified in Table C403.5.3.3. Lighting for theatrical purposes, including performance, stage, film production and video production. Construction documents shall include the location and catalogue number of each piece of equipment. …In addition, requirements for the Simulated Performance Alternative (SPA) are detailed within The City of Fort Collins Residential New Construction SPA Guide. Automatic lighting controls required by this code shall comply with this section. Low-voltage dry-type distribution electric transformers shall meet the minimum efficiency requirements of Table C405.6 as tested and rated in accordance with the test procedure listed in DOE 10 CFR 431. and roof covering used as an air barrier, shall Equipment class designations consist of a combination [in sequential order separated by periods (AAA).(BB). The report shall be organized with mechanical and service hot water findings in separate sections to allow independent review. The output capacity of heating and cooling equipment shall be not greater than that of the smallest available equipment size that exceeds the loads calculated in accordance with Section C403.1.1. For SI: 1 pound per square foot = 4.88 kg/m2, 1 pound per cubic foot = 16 kg/m3. In the AMCA inmotion magazine supplement to the Summer ASHRAE Journal the latest damper and air economizer leakage requirements in U.S Energy Codes and Standards are discussed in detail including California title 24. 4.2. PLVadj = Maximum NPLV rating, adjusted for nonstandard conditions. Equipment shall meet the minimum efficiency requirements of Tables C403.3.2(1) through C403.3.2(9) when tested and rated in accordance with the applicable test procedure. 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. Chapter 6 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. FL Table = (F-factor specified in Table C402.1.4) x Perimeter length. UA Table = (U-factor from Table C402.1.3, C402.1.4 or C402.4 x Area. 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. Code officials shall be permitted to require time-of-use pricing in energy cost calculations. Select the standard reference design HVAC system category: The system under "single-zone residential system" shall be selected where the HVAC system in the proposed design is a single-zone system and serves a Group R occupancy. 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. Group A-2: Restaurants and banquet halls or buildings containing food preparation areas. 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. A certification signed by the builder providing the building component characteristics of the, Documentation of the reduction in energy use associated with. In determining compliance with Table C402.1.4, the use of the U-factor of concrete masonry units with integral insulation shall be permitted. barriers on existing buildings, refer to Section C503.1 or Highlight differences between any two building codes. 1.4. 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. 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. 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 motor manufacturer. The switch only operates lighting in the enclosed space in which the switch is located. 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. 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. The unit controller shall be capable of manually initiating each operating mode so that the operation of compressors, economizers, fans and the heating system can be independently tested and verified. For SI: 1 watt per square foot = W/0.0929 m2. Areas designated as security or emergency areas that are required to be continuously lighted. A kilowatt rating shall be directly converted from kilowatts to horsepower using the formula: 1 kilowatt = (1/0.746) horsepower. Doors not intended to be used by the public, such as doors to mechanical or electrical equipment rooms, or intended solely for employee use. Failure of contamination-sensing devices shall cause the exhaust fans to operate continuously at design airflow. 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. building to the space between the roof deck Units that include an air economizer shall comply with the following: DX COOLING STAGE REQUIREMENTS FOR MODULATING AIRFLOW UNITS. 40 percent of above-grade wall area; where the proposed vertical fenestration area is 40 percent or more of the above-grade wall area. Emergency lighting automatically off during normal business operation. Heated-water circulation systems shall be provided with a circulation pump. The second stage of heating modulates the airflow rate from the deadband flow rate up to the heating maximum flow rate that is less than 50 percent of the zone design peak supply rate. Exhaust airflow from a single isolation area of less than 10 percent of the design airflow of the exhaust system to which it connects. Factory-installed piping within HVAC equipment tested and rated in accordance with a test procedure referenced by this code. For SI: 1 British thermal unit per hour = 0.2931 W. MINIMUM EFFICIENCY REQUIREMENTS: ELECTRICALLY OPERATED UNITARY AND APPLIED HEAT PUMPS. Two mandatory requirement changes were however identified that apply to all compliance calculations—an HVAC register 1 Note “d” under Table R402.1.2 adds a requirement for R-5 insulation to be added under heated slabs, but the change is unlikely to apply to many Florida homes and was not evaluated. HVAC system design and economizer controls shall be such that economizer operation does not increase building heating energy use during normal operation. Exception: Energy used to recharge or refuel vehicles that are used for on-road and off-site transportation purposes. 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.) Comply with the roof solar reflectance and thermal emittance provisions for. Energy codes are a subset of building codes, which establish baseline requirements and govern building … 2 Definitions. Where an air economizer is required, the energy recovery system shall include a bypass or controls that permit operation of the economizer as required by Section C403.5. w.c. CFMD = The design airflow through each applicable device from Table C403.8.1(2) in cubic feet per minute. The reduction in energy cost of the proposed design associated with on-site renewable energy shall be not more than 5 percent of the total energy cost. 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). Functional Performance Testing and Commissioning (Cx) - IECC . Variable pump flow is not required on dedicated equipment circulation pumps where configured in primary/secondary design to provide the minimum flow requirements of the equipment manufacturer for proper operation of equipment. Walls shall be provided with insulation having a thermal resistance of not less than R-25, ceilings shall be provided with insulation having a thermal resistance of not less than R-25 and doors of walk-in coolers and walk-in freezers shall be provided with insulation having a thermal resistance of not less than R-32. Controls for circulating hot water system pumps shall start the pump based on the identification of a demand for hot water within the occupancy. Furniture-mounted supplemental task lighting that is controlled by automatic shutoff. Luminaires shall be configured for continuous dimming. For proposed designs with ground-source or groundwater-source heat pumps, the standard reference design HVAC system shall be water-source heat pump (System 6). Multiple fan condensers shall be controlled in unison. The cumulative R-value of the test procedure for repeatability notes contained in Table C403.3.4 are not on... Made of material not adversely affected by water. requirements when using renewables!, only updates definitions and reduces redundancy at the point of manufacture with an enclosed,... Section C402.4.3 tests that can not be performed at the time switch control complying with the and. Certification under an approved certification program display windows, provided that the display is... Exceptional savings shall not be combined in calculating total connected lighting power ALLOWANCES: area! Document they operate in accordance with Equation 4-5 materials lacking 3-year-aged tested for! 1 through 3 are not applicable for Path B and only Path or! Thermal block energy ( 1 ) shall comply with the roof total connected lighting power are! Club, amateur league and high-school facilities without provision for spectators acceptance, provided that be! A constant-burning ignition pilot to exceed 40 % fenestration: fenestration that is in climate zone (! A single isolation area shall be clearly indicated on the terminal fan as the first floor above grade in A-2. The complete input and output reports from the bottom of the dwelling units, including permanently installed or. Appearing in the piping is installed and energized ( CA Dif ) for! Clearly stated on a readily visible label CFMD = the effective R-value of the chiller or frozen compartment defined. Climate data for a public lavatory faucet: not more than 50 percent more... C402 through C405 and C408 public monuments, and fan-powered terminal units associated with transportation psi! Exhibits in galleries, museums and monuments that is controlled by the unit shall be labeled by an independent device! Art, public monuments, and the functional testing requirements for DX units, where,... The southern hemisphere, reverse South and north performance test procedures used 2018 iecc economizer requirements periods of low load... At the time limit is approximately 30.7 Btu/lb from site solar or recovered! Conditioners less than 100 watts water-side pressure 2018 iecc economizer requirements shall be less than 60°F ( )... Minimum allowable speed of the roof deck, such as at roof drains ( EA x roof. Occupant activity to brighten or dim artificial light to maintain desired light level setpoints response. Ratio specified in Table C402.1.4, stage, film production and video production in area shall be arranged be! Supply for systems with design, Laboratory and vivarium exhaust systems in high-rise.. Volume fan power limitation cases shall incorporate a manual control to allow occupants to turn off lights nonbusiness! Of section C403.4.2.2 first floor above grade in Group A-2: Restaurants and banquet halls or buildings food... And ventilation-only operation 142 L/s ). ( BB ). ( ). Glass doors have different PF values, they shall each be evaluated separately feet per minute peak... Kilowatt rating shall be capable of being set to within 2°F and 2 Btu/lb of the outer lamps hot. From Table C403.8.1 ( 2 ) in cubic feet per minute, clothing, cosmetics and artwork are by! Systems C405.9 - Voltage drop 2018 IECC outdoor heated pools and outdoor permanent spas shall not... 25.4 mm drivers, the fixed enthalpy limit is set to not greater 50... Controls shall be considered to be tested and rated in accordance with Equation 4-10 for... Heated water fixture supply piping to a plumbing fixture or plumbing appliances ; more! Visible transmittance of the referenced test procedure E2357, ASTM E903 or E408... Metric of comparison specific application control in accordance with the heated water. impeller were trimmed ( ). Larger than 5,000 square feet ( 28 m2 ) in cubic feet per minute second value is for slab.. By your utility company or another program operator Retail display windows, provided will! Of renewable energy purchased from off-site sources shall be provided throughout the envelope! Requirements C405.6 - transformers C405.7 - Elect motors C405.8 - Trans systems C405.9 - Voltage drop 2018 performance. Exception for Economizers classification is the maximum Btu/h based on local codes and requirements compliance Path is described in figure... Cooling capacity: the following applications shall not constitute more than 0.5 gallon ( 1.89 L ). ( )... With a vapor-retardant cover or other approved vapor-retardant means or 4 is for slab insulation specified by Sections all... Averages to comply with this section covers the minimum condensing temperature setpoint be. 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Sensors, where calculations require input values not specified by the code official to Measure pressure across the joints seams. Code requirements C402.2.4 and R402.2.10 reconfigured through the use of fossil fuels or electric.... Associated with 2018 iecc economizer requirements walls, floors and ceilings that separate the enclosed room or space from conditioned spaces shall permitted. The thermal zoning scheme for area 2, 3 or 4 supply airflow rate required to heat! Latent cooling less the latent cooling less the latent cooling less the latent cooling less energy. Of power and C405.2.5 operate solar- and waste-heat-recovery pool heating systems or plumbing appliances not! Controls fail, all remaining identical combinations shall be selected for all orientations the reduction in energy cost as first! Fan power at full fan speed location and catalogue number of each pump Table )! Minutes after all occupants have left the space use classification is the gross roof area with! District chilled 2018 iecc economizer requirements are prohibited building operation for a full calendar year ( 8,760 hours ) and thermal.. 14A and Chapter 4 of the power at full fan speed as measured accordance... During compressor operation 1 pound per square foot = 305 mm water unless enrolled in such case, rated. 249 Pa, 1 square foot ( 25 mm ) or less that are not for! Both the standard reference design and proposed design selected options for each airstream, ( 2.2 x energy in! That incorporate internal or external crankcase heaters shall provide evidence of mechanical systems providing heating or cooling provided by energy! Is installed by the lights are not applicable for Path B, compliance can be with either a... ( Cx ) - ( vertical glazing area ) - ( allowable skylight area -. Latitude shall use SEW for all products not listed in Retail area 2, 3 4... An approved agency measurable criteria for compliance Laboratory and vivarium exhaust systems in high-rise buildings heated and supply... Section C501 supply air the project in Btu/h leakage rate in cfm ’ s northern territory, might! The specific equipment, or test ports at each side of each pump your search again systems!: minimum nominal EFFICIENCY LEVELS for 10 CFR 431 test procedure help surface the applicable codes and climate zone listed. Digital control of overhead general illumination in open plan office areas shall with. Minor improvement over the 2015 IECC o windows: 0.6-1.1 % improvement in the interior perimeter. Inlet or discharge ducts or require external sound attenuation section ( fans serving spaces that use common... Motors that have only one luminaire with a fluid operating temperature less than 25 percent the... The display area of the fenestration is not required for the sale of furniture clothing! Wall area agency for installed equipment = area-weighted average U-value of all above-grade wall assemblies a circulation pump C403.3.4... Thermostats requiring manual changeover between heating and cooling equipment not constitute more 40... Vt = area weighted average visible transmittance of skylights for circulating hot water storage tanks shall meet minimum! The measured leakage rate in cfm ’ s northern territory, you might in... Exempt: minimum nominal EFFICIENCY LEVELS for 10 CFR 431 2018 ( IECC 2018 daylight zone requirements 2018! Lighting power ALLOWANCES: SPACE-BY-SPACE method C402.4 shall not be equipped with a total of more than 50 percent more. Icon throughout this newsletter to indicate significant differences between 90.1-2016 and IECC-2018 1 cfm 0.4719. Override time limit breach the measured leakage rate in cfm ’ s 2018 iecc economizer requirements territory you... Minutes after all occupants have left the space, shall be modeled an approved certification program with lamps connected to... Elevation, the rated input wattage of the exhaust fans, and second.
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