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. but not less than 8 W per linear foot (25 W/lin m). OCCUPANCY-BASED AUTOMATIC SHUTOFF HVAC systems and components, and other opaque objects mounted above the roof. The maximum U-factor and solar heat gain coefficient (SHGC) for fenestration shall be as specified in Table C402.4. Where this results in one or more sensors being located downstream of major, Controls shall be provided on each HVAC system that are capable of and configured to automatically raise the cooling setpoint and lower the heating setpoint by not less than 4°F (2°C) from the occupant setpoint within 30 minutes after the occupants have left the guestroom. Mode of operation upon a loss of power and restoration of power. 2.2. More efficient HVAC performance in accordance with, Reduced lighting power in accordance with, Enhanced lighting controls in accordance with, On-site supply of renewable energy in accordance with, Provision of a dedicated outdoor air system for certain HVAC equipment in accordance with, Enhanced envelope performance in accordance with. 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. Chapter 6 contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure. SEE THE TENTATIVE HEARING ORDER FOR THESE COMMITTEES. Exhaust airflow from a single isolation area of less than 10 percent of the design airflow of the exhaust system to which it connects. Construction documents shall include the location and catalogue number of each piece of equipment. ASHRAE/IES 90.1-2016 requires that warehouse storage lighting be automatically reduced when it is not in use. The minimum thermal resistance (R-value) of materials installed in the wall cavity between framing members and continuously on the walls shall be as specified in Table C402.1.3, based on framing type and construction materials used in the wall assembly. In 2018, the code council introduced important new lighting requirements to improve the energy efficiency of commercial buildings. Variable pump flow is not required on dedicated coil circulation pumps where needed for freeze protection. Advertising signage or directional signage. During any time where activity has not been detected for 15 minutes or more. 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. Required fields are marked *. LPAnorm = Normal building lighting power allowance in watts calculated in accordance with Section C405.3.2 and reduced in accordance with Section C406.3 where Option 2 of Section C406.1 is used to comply with the requirements of Section C406. The sub-cooled liquid temperature shall be controlled at a maximum temperature setpoint of 50°F (10°C) at the exit of the subcooler using either compressor economizer (interstage) ports or a separate compressor suction group operating at a saturated suction temperature of 18°F (-7.8°C) or higher. 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. Was manufactured on or after April 16, 2015. Table C407.5.1(1) shall include by reference all notes contained in Table C402.1.4. The Law requires design and construction professionals to follow the latest published edition of the International Energy Conservation Code (IECC) which is currently the 2018 IECC and the ASHRAE Standard 90.1-2013 “Energy Standard for Buildings except Low-Rise Residential Buildings,” referenced therein. Exceptions: The following roofs and portions of roofs are exempt from the requirements of Table C402.3: Portions of the roof that include or are covered by the following: MINIMUM ROOF REFLECTANCE AND EMITTANCE OPTIONSa. Building envelope values and fenestration areas determined in accordance with Equation 4-2 shall be an alternative to compliance with the U-, F- and C-factors in Tables C402.1.4 and C402.4 and the maximum allowable fenestration areas in Section C402.4.1. The dampers shall be labeled by an approved agency. Hydronic heat pump systems shall comply with Sections. Switching the middle lamp luminaires independently of the outer lamps. Economizer controls and dampers shall be configured to sequence the dampers with the mechanical cooling equipment and shall not be controlled by only mixed-air temperature. 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. Strainers, control valves, and balancing valves associated with piping 1 inch (25 mm) or less in diameter. For lighting controls, enhanced digital controls must be implemented. 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. Itemization of deficiencies found during testing required by this section that have not been corrected at the time of report preparation. Verify and document the following: Simulate unoccupied condition. Condenser fan motors that are less than 1 hp (0.746 kW) shall use electronically commutated motors, permanent split capacitor-type motors or 3-phase motors. OCCUPANCY-BASED AUTOMATIC SHUTOFF, Sections 9.4.1.1(g) and (h) (90.1-2016) and C405.2.1 (IECC 2018). Tested areas shall total not less than 25 percent of the conditioned floor area and shall be tested in accordance with this section. It is not meant to replace your state’s or … Tubular pipe insulation shall be installed in accordance with the insulation manufacturer's instructions. 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. Lighting that is required to have specific application control in accordance with, New buildings where the total connected lighting power calculated in accordance with, Calibration mechanisms shall be in a location with. 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. 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, LOW-VOLTAGE DRY-TYPE DISTRIBUTION TRANSFORMERS, Section C406 Additional Efficiency Package Options, Section C408 Maintenance Information and System Commissioning, Power-operated sliding doors and power-operated folding doors, 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. barriers on existing buildings, refer to, Paths for air leakage from the 6.2. 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. An air or water economizer shall be provided for the following cooling systems: Individual fan systems with cooling capacity greater than or equal to 54,000 Btu/h (15.8 kW) in buildings having other than a Group R occupancy. High-limit shutoff control types for specific climates shall be chosen from Table C403.5.3.3. 3.1. The R-value of integral insulation installed in concrete masonry units shall not be used in determining compliance with Table C402.1.3 except as otherwise noted in the table. As an example, at approximately 6,000 feet elevation, the fixed enthalpy limit is approximately 30.7 Btu/lb. In Climate Zones 3 through 8, where combustion air is supplied through openings in an exterior wall to a room or space containing a space-conditioning fuel-burning appliance, one of the following shall apply: The room or space containing the appliance shall be enclosed and isolated from conditioned spaces inside the building thermal envelope. V = Volume of the case, as measured in accordance with Appendix C of AHRI 1200. 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. This section has been amended at the state or city level. For 90.1, exemptions include emergency lighting that is automatically OFF during normal building operation, decorative gas lighting, lighting required by life/safety regulation or law, and exterior lighting not fed by the building’s electrical service. More specifically, all buildings except detached one- and two-family dwellings and multiple single-family dwellings (townhouses) as well as Group R-2, R-3 and R-4 buildings three stories or less in height above grade plane. Uninterruptible power system transformers. Low or minimum speed shall not be greater than 66 percent of full speed. The requirements for centrifugal chiller shall be adjusted for nonstandard rating conditions in accordance with. Air temperature sensor failure/fault. Individual fenestration products from different product categories listed in Table C402.4 shall not be combined in calculating the area-weighted average U-factor. Class III facilities consist of club, amateur league and high-school facilities with seating for 2,000 or fewer spectators. Condenser fans serving flooded condensers. 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. Assembly descriptions can be found in ANSI/ASHRAE/IESNA Appendix A. R-5.7ci is allowed to be substituted with concrete block walls complying with ASTM C90, ungrouted or partially grouted at 32 inches or less on center vertically and 48 inches or less on center horizontally, with ungrouted cores filled with materials having a maximum thermal conductivity of 0.44 Btu-in/h-f, "Mass floors" shall be in accordance with. ASHRAE 90.1-2016 has been published and the IECC 2018 has just recently been made available. Controls for. These strategies may be applied as long as all mandatory controls are provided. For luminaires incorporating a ballast or transformer, the rated input wattage of the ballast or transformer when operating that lamp. First, both ASHRAE 90.1 and IECC establish minimum requirements for energy efficiency of buildings. 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. For lighting track, cable conductor, rail conductor, and plug-in busway systems that allow the. This may include manual switches, occupancy sensors with integral manual-OFF (and ON) switch, and manual-ON timer switches. Monitoring occupant activity to brighten or dim lighting when occupied or unoccupied, respectively. 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. This may be accomplished with continuous or step dimming or A/B switching of alternate luminaires, luminaire rows or ballasts. Capture and share institutional knowledge within your team and company. NR = No Requirement, PF = Projection Factor. HVAC system design and economizer controls shall be such that economizer operation does not increase building heating energy use during normal operation. 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. The lights are not incorrectly turned on by movement in adjacent areas or by HVAC operation. Refrigerant pressure sensors, where used, shall have an accuracy of ±3 percent of full scale. Code officials shall be permitted to require time-of-use pricing in energy cost calculations. Lighting systems shall be provided with controls that comply with one of the following. Developed areas of national parks, state parks, forest. 3.2. Piping insulation exposed to the weather shall be protected from damage, including that caused by sunlight, moisture, equipment maintenance and wind, and shall provide shielding from solar radiation that can cause degradation of the material. 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. Section 9.6.3 and Table 9.6.3 (90.1-2016). Multiple fan condensers shall be controlled in unison. The conversion should be calculated to three significant decimal places, and the resulting horsepower shall be rounded in accordance with No. 2018 IECC - Commercial Provisions The commercial energy code applies to all buildings except those defined as residential. TDA = Total display area of the case, as measured in accordance with Appendix D of AHRI 1200. A certification signed by the builder providing the building component characteristics of the, Documentation of the reduction in energy use associated with, The proposed skylight area; where the proposed skylight area is less than that permitted by, Where no heating system exists or has been specified, the heating system shall be modeled as fossil fuel. Economizers shall comply with Sections C403.5.1 through C403.5.5. This will depend on whether the load is of sufficient size and sufficient daylight availability is expected. Sections 9.4.1.1(d) (90.1-2016) and C405.2.2 (IECC 2018). Otherwise, each provision in the standard may include its own specific exemptions. See differences between code years or jurisdictions. Spaces where the total area minus the area of sidelight, Recessed lighting fixtures shall comply with, Plywood with a thickness of not less than, Oriented strand board having a thickness of not less than, Extruded polystyrene insulation board having a thickness of not less than, Foil-back polyisocyanurate insulation board having a thickness of not less than, Closed-cell spray foam having a minimum density of 1.5 pcf (2.4 kg/m, Open-cell spray foam with a density between 0.4 and 1.5 pcf (0.6 and 2.4 kg/m, Exterior or interior gypsum board having a thickness of not less than, Cement board having a thickness of not less than, A Portland cement/sand parge, or gypsum plaster having a thickness of not less than. v . Supply and return air ducts and plenums shall be insulated with not less than R-6 insulation where located in unconditioned spaces and where located outside the building with not less than R-8 insulation in Climate Zones 1 through 4 and not less than R-12 insulation in Climate Zones 5 through 8. For 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. This section covers the provision of maintenance information and the commissioning of, and the functional testing requirements for, building systems. Maximum capacity — minimum and maximum ratings as provided for and allowed by the unit's controls. Failure of contamination-sensing devices shall cause the exhaust fans to operate continuously at design airflow. The perimeter system includes not fewer than one thermostatic control, The perimeter system heating and cooling supply is controlled by, Occupancies or applications requiring precision in indoor temperature control as, Where a closed-circuit cooling tower is used directly in the heat pump loop, either an, Where an open-circuit cooling tower is used directly in the heat pump loop, an. GENERAL EXEMPTIONS TO LIGHTING CONTROL REQUIREMENTS, Sections 9.1.1 (90.1-2016) and C405.2 (IECC 2018). Sensors controlling aisle lighting must not control lighting outside the aisle. Factory-installed piping within HVAC equipment tested and rated in accordance with a test procedure referenced by this code. Low or minimum speed shall be used during periods of low cooling load and, Units that include an air-side economizer in accordance with, Modulating fan control is not required for chilled water and evaporative cooling units with fan motors of less than 1 hp (0.746 kW) where the units are not used to provide, Where the volume of outdoor air required to comply with the. The controls on pumps that circulate water between a, Drain water heat recovery units shall comply with CSA B55.2. The air leakage of fenestration assemblies shall meet the provisions of Table C402.5.2. hp = The maximum combined motor nameplate horsepower. Lighting approved because of safety considerations. 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. Image courtesy of EnergyCodes.gov, as of December 2018. 2018 IECC Commercial Mechanical Requirements 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. Roof solar reflectance and thermal emittance shall comply with, Air leakage of building envelope assemblies shall comply with, Those with a peak design rate of energy usage less than 3.4 Btu/h • ft, Are separate buildings with floor area not more than 500 square feet (50 m, Are intended to house electronic equipment with installed equipment power totaling not less than 7 watts per square foot (75 W/m, Have a heating system capacity not greater than (17,000 Btu/hr) (5 kW) and a heating, Comply with the roof solar reflectance and thermal emittance provisions for. Exception: The following fans are not required to have a fan efficiency grade: Fans of 5 hp (3.7 kW) or less as follows: Motors for fans that are not less than 1/12 hp (0.062 kW) and less than 1 hp (0.746 kW) shall be electronically commutated motors or shall have a minimum motor efficiency of 70 percent, rated in accordance with DOE 10 CFR 431. Fan-powered condensers shall comply with the following: Condenser fans for air-cooled condensers, evaporatively cooled condensers, air- or water-cooled fluid coolers or cooling towers shall reduce fan motor demand to not more than 30 percent of design wattage at 50 percent of design air volume, and incorporate one of the following continuous variable speed fan control approaches: Refrigeration compressor systems shall comply with the following: Compressors and multiple-compressor system suction groups shall include control systems that use floating suction pressure control logic to reset the target suction pressure temperature based on the temperature requirements of the attached refrigeration display cases or walk-ins.
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