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The efficiency shall be verified through certification under an approved <br />certification program or, where a certification program does not exist, the <br />equipment efficiency ratings shall be supported by data furnished by the <br />manufacturer. Where multiple rating conditions or performance <br />requirements are provided, the equipment shall satisfy all stated <br />requirements. Where components, such as indoor or outdoor coils, from <br />different manufacturers are used, calculations and supporting data shall be <br />furnished by the designer that demonstrates that the combined efficiency of <br />the specified components meets the requirements herein. (Tables C403.2.(1) <br />through (16) are expressly retained and remain applicable to HVAC <br />equipment performance.) <br />Exceptions: <br />1. Factory, laboratory, and high hazard occupancy combustion <br />equipment, except for HVAC and domestic water heating. <br />2. Commercial Kitchens. <br />3. Other combustion equipment approved by the Building Official <br />based on demonstration by the applicant that compliance with this <br />section is not feasible and the equipment proposed is the most efficient <br />appliance reasonably available. <br />4-3. 15. Section C403.4.1 Thermostatic controls, is hereby deleted and replaced with <br />the following: <br />C403.4.1 Thermostatic controls. The supply of heating and cooling energy to <br />each zone shall be controlled by individual thermostatic controls capable of <br />responding to temperature within the zone. Where humidification or <br />dehumidification or both is provided, no fewer than one humidity control device <br />shall be provided for each humidity control system. Occupancy sensors shall be <br />provided on the thermostat to setback in accordance with C403.4.2.1 <br />Exception: Independent perimeter systems that are designed to offset only building <br />envelope heat losses, gains or both serving one or more perimeter zones also served <br />by an interior system provided that both of the following conditions are met: <br />1. The perimeter system includes not fewer than one thermostatic <br />control zone for each building exposure having exterior walls facing <br />only one orientation (within ±45 degrees) (0.8 rad) for more than 50 <br />contiguous feet (15 240 mm). <br />2. The perimeter system heating and cooling supply is controlled by <br />thermostats located within the zones served by the system. <br />4 16. Section C403.12.1 Duct and plenum insulation and sealing, is hereby deleted and <br />replaced with the following: <br />Ordinance No. 1816, Series 2021 <br />Page 8 of 25 <br />