Section C407 (Total Building Performance) and all mandatory requirements. 2012 Commercial IECC Mandatory Requirements Mandatory Sections Regardless of Compliance Path C405 Electrical Power and Lighting Systems –With Mandatory Sections C405.2 Lighting controls –With sections C405.2.1, C405.2.2, C405.2.3 and C405.2.4 C405.3 … Exception: Where it can be demonstrated that a heat pump system will be required to reject heat throughout the year. Equipment not designed for operation at AHRI Standard 550/590 test conditions of 44°F (7°C) leaving chilled-water temperature 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 and, Equipment with a leaving fluid temperature higher than 32°F (0°C), shall meet the requirements of, Each heating and cooling system shall be provided with thermostatic controls as specified in, The supply of heating and cooling energy to each. Piping that conveys fluids that have not been heated or cooled through the use of fossil fuels or electric power. A vent damper is an acceptable alternative to a flue damper for those furnaces where combustion air is drawn from the. Time switches or other control method that can automatically turn off and on heaters and pumps according to a preset schedule shall be installed on all heaters and pumps. The total capacity of all systems without economizers shall not exceed 300,000 Btu/h per. A narrative description of the activities that will be accomplished during each phase of commissioning, including the personnel intended to accomplish each of the activities. Areas that have only one luminaire, with rated power less than 100 watts. Hourly variations in occupancy, illumination, receptacle loads. The following systems and loads shall be included in determining the total building performance: heating systems, cooling systems, Compliance with this section requires that the criteria of Sections, Compliance based on total building performance requires that a proposed building (, Documentation verifying that the methods and accuracy of compliance software tools conform to the provisions of this section shall be provided to the, Compliance software tools shall generate a report that documents that the, 3. Code calculators automatically generate a detailed list of requirements. C405.2.2.1 C405.2.4 Occupancy sensor Automatic control turns lighting ON upon occupancy or OFF after a vacancy of 30 minutes or less. The window projection factor shall be determined in accordance with Equation C4-2. The building energy cost shall be equal to or less than 85 percent of the standard reference design building. Piping that conveys fluids that have a design operating temperature range between 60°F (15°C) and 105°F (41°C). Supplemental task lighting, including permanently installed under-shelf or under-cabinet lighting, shall have a control device integral to the luminaires or be controlled by a wall-mounted control device provided the control device is. Daylighting controls device shall be capable of automatically reducing the lighting power in response to available daylight by either one of the following methods: Exception: Lighting used for the following exterior applications is exempt where equipped with a control device independent of the control of the nonexempt lighting: Individual tenant spaces shall comply with either Section C406.2 or Section C406.3 unless documentation can be provided that demonstrates compliance with Section C406.4 for the entire building. Lighting equipment used for the following shall be exempt provided that it is in addition to. Separate thermal blocks shall be assumed for interior and perimeter spaces. Corner units and units with roof or floor loads shall only be combined with units sharing these features. Projects provide a dedicated space to collaborate on code research. Heated pools and inground permanently installed spas shall be provided with a vapor-retardant cover. Compliance with this standard can be obtained by meeting the minimum requirements of Path A or Path B. The IECC references ASHRAE/IES 90.1 as an alternative standard, providing a choice to building designers. Please contact support@up.codes. Low-sloped roofs, with a slope less than 2 units vertical in 12 horizontal, directly above cooled, Walls associated with the building envelope shall be classified in accordance with. LIFT is not less than 20°F (11.1 °C) and not greater than 80°F (44.4°C). Distance measured vertically from the bottom of the glazing to the underside of the overhang, eave, or permanently attached shading device. Exceptions: Lighting controls are not required for the following: 1. The following luminaires located within the same area shall be tandem wired: Internally illuminated exit signs shall not exceed 5 watts per side. db = dry bulb temperature, °F, wb = wet bulb temperature, °F. This document provides the foundation for many state and city codes. For purposes of this table, closed circuit cooling tower performance is defined as the water flow rating of the tower at the thermal rating condition listed in Table 403.2.3(8) divided by the sum of the fan nameplate rated motor power and the spray pump nameplate rated motor power. Where more than 25 percent of the air designed to be supplied by the system is to spaces that are designed to be humidified above 35°F (1.7 °C) dew-point temperature to satisfy process needs. (500 Pa) pressure classification. Where used to control both heating and cooling, Thermostatic setback controls shall have the capability to set back or temporarily operate the system to maintain, Snow- and ice-melting systems, supplied through energy service to the building, shall include, Where the supply airflow rate of a fan system exceeds the values specified in, Ductwork shall be constructed and erected in accordance with the, All longitudinal and transverse joints, seams and connections of supply and return, All piping serving as part of a heating or cooling system shall be thermally insulated in accordance with. Lighting in retail display windows, provided the display area is enclosed by ceiling-height partitions. For purposes of this table, open circuit cooling tower performance is defined as the water flow rating of the tower at the thermal rating condition listed in Table 403.2.3(8) divided by the fan nameplate rated motor power. Three hundred cfm (142 L/s) or less where the maximum flow rate is less than 10 percent of the total fan system supply airflow rate. Your selected jurisdiction and code year has limited NR = No requirement. Ensure manual controls are specified and installed in appropriate spaces Step L2b. with the IECC? 2012 IECC 90.1-2010 C402 - Envelope . Highlight differences between any two building codes. Systems that use a common distribution system to supply both heated and chilled water shall be designed to allow a dead band between changeover from one mode to the other of at least 15°F (8.3°C) outside air temperatures; be designed to and provided with controls that will allow operation in one mode for at least 4 hours before changing over to the other mode; and be provided with controls that allow heating and cooling supply temperatures at the changeover point to be no more than 30°F (16.7°C) apart. This section applies to buildings served by unitary or packaged HVAC equipment listed in Tables, Each cooling system that has a fan shall include either an air or water economizer meeting the requirements of Sections. Interior Lighting Controls Step L2a. Maximum capacity — minimum and maximum ratings as provided for and allowed by the unit's controls. 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. In addition, commercial buildings shall comply with either Section C406.2, C406.3 or C406.4 – (Performance) The requirements of Section C407, C402.4, C403.2, C404, C405.2, C405.3, C405.4, C405.6 and C405.7. Individual fan-cooling units with a supply capacity less than the minimum listed in. Areas predominantly consisting of residential zoning, High-activity commercial districts in major metropolitan, Base Site Allowance (Base allowance is usable in tradable or nontradable surfaces.). The 2012 International Energy Conservation Code (IECC) encourages efficiency in envelope design, mechanical systems and lighting systems as well as the use of new materials and techniques. Air economizers shall be capable of automatically reducing, Systems shall be capable of relieving excess, Hydronic systems of at least 300,000 Btu/h (87 930 W) design output capacity supplying heated and chilled water to comfort conditioning systems shall include controls that meet the requirements of, This section applies to buildings served by HVAC equipment and systems not covered in, Water economizer systems shall be capable of cooling supply air by indirect evaporation and providing up to 100 percent of the expected system cooling load at. We are looking to gauge the level of interest in linking UL product and system certification information alongside related code sections. Exception: Where the slab-on-grade floor is greater than 24 inches (61 mm) below the finished exterior grade, perimeter insulation is not required. Dual switching of alternate rows of luminaires, alternate luminaires or alternate lamps; Switching the middle lamp luminaires independently of the outer lamps; or. Efficient furnace fan: Fossil fuel furnaces in climate, Units shall also include an IID (intermittent ignition device), have jacket losses not exceeding 0.75 percent of the input rating, and have either power venting or a flue damper. For SI: 1 inch = 25.4 mm. Roofs where a minimum of 75 percent of the roof area meets a minimum of one of the exceptions above. Individual VAV fans with motors of 7.5 horsepower (5.6 kW) or greater shall be: Static pressure sensors used to control VAV fans shall be placed in a position such that the controller setpoint is no greater than one-third the total design fan static pressure, except for systems with, For systems with direct digital control of individual, The heating of fluids that have been previously mechanically cooled and the cooling of fluids that have been previously mechanically heated shall be limited in accordance with Sections. If a closed-circuit cooling tower is used directly in the heat pump loop, either an, If an open-circuit tower is used directly in the heat pump loop, an.