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. Buildings located at less than 23.5 degrees latitude shall use SEW for all orientations. 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. An air barrier may be a single material or a combination of materials. MINIMUM CHILLED-WATER SYSTEM COOLING CAPACITY FOR DETERMINING ECONOMIZER COOLING REQUIREMENTS, EQUIPMENT EFFICIENCY PERFORMANCE EXCEPTION FOR ECONOMIZERS. Where the unit's capacity is greater than 15,000 Btu/h, use 15,000 Btu/h in the calculations. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. Seventy-five percent of the energy for reheating is from site-recovered or site-solar energy sources. The blue below represents R-10 insulation. A building complies with this section where its total connected interior lighting power calculated under. Any higher rate that can be demonstrated to reduce overall system annual energy use by offsetting reheat/recool energy losses through a reduction in outdoor air intake for the system as approved by the code official. Each hood shall have a maximum exhaust rate as specified in Table C403.7.5 and shall comply with one of the following: Where a single hood, or hood section, is installed over appliances with different duty ratings, the maximum allowable flow rate for the hood or hood section shall be based on the requirements for the highest appliance duty rating under the hood or hood section. Verify the correct time and date in the time switch. Factory-installed piping within HVAC equipment tested and rated in accordance with a test procedure referenced by this code. The visible transmittance of the fenestration is not less than 0.20. 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. Replacement efficiencies apply only to units with existing sleeves less than 16 inches (406 mm) in height and less than 42 inches (1067 mm) in width. Pressure classifications specific to the duct system shall be clearly indicated on the construction documents in accordance with the International Mechanical Code. Pressure drop of device at fan system design conditions. Vestibules shall be designed so that in passing through the vestibule it is not necessary for the interior and exterior doors to open at the same time. Energy codes are a subset of building codes, which establish baseline requirements and govern building … Test and balance activities shall include air system and hydronic system balancing. For fans 6 bhp (4413 W) and larger, 1.3 times the fan brake horsepower. For a public lavatory faucet: not more than 2 ounces (0.06 L). The skylight area shall be not more than 6 percent of the roof area provided that, An area-weighted average shall be permitted to satisfy the. 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. Gas-fired lighting appliances shall not be equipped with continuously burning pilot ignition systems. Building thermal envelope assemblies for buildings that are intended to comply with the code on a prescriptive basis in accordance with the compliance path described in Item 2 of Section C401.2, shall comply with the following: Alternatively, where buildings have a vertical fenestration area or skylight area exceeding that allowed in Section C402.4, the building and building thermal envelope shall comply with Section C401.2, Item 1 or Section C401.2, Item 3. 1 Scope and Application / Administrative and Enforcement. 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. https://basc.pnnl.gov/images. Where required, daylight-responsive controls shall be provided within each space for control of lights in that space and shall comply with all of the following: The sidelit zone is the floor area adjacent to vertical fenestration that complies with all of the following: The toplit zone is the floor area underneath a roof fenestration assembly that complies with all of the following: DAYLIGHT ZONE UNDER A SLOPED ROOFTOP MONITOR. 3 Vapor Retarder and Air Barrier [R402.4] Code Summary . Manual or automatic controls shall be provided that will operate the air curtain with the opening and closing of the door. BUILDING ENERGY CODES www.energycodes.gov 2 – Energy codes and standards set minimum efficiency requirements for new and renovated buildings, assuring reductions in energy use and emissions over the life of the building. Submit this form or email us at, Please contact support@up.codes. Mode of operation upon a loss of power and restoration of power. for the 2018 IECC Dale Horton Horton Associates 406-239-4196 horton@montana.com Part 2. 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. Electric motors shall meet the minimum efficiency requirements of Tables C405.7(1) through C405.7(4) when tested and rated in accordance with the DOE 10 CFR 431. The IECC has been adopted by many states and municipalities. Single-phase, air-cooled heat pumps less than 65,000 Btu/h are regulated by NAECA. 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