Building mechanical systems and equipment.

CFR · 2024-01-01 · US · Title 10

Mechanical systems and equipment used to provide heating, ventilating, and air conditioning functions as well as additional functions not related to space conditioning, such as, but not limited to, freeze protection in fire projection systems and water heating, shall meet the requirements of this section. 403.1 403.1.1 Where multiple rating conditions and/or performance requirements are provided, the equipment shall satisfy all stated requirements. 403.1.2 Equipment used to provide water heating functions as part of a combination integrated system shall satisfy all stated requirements for the appropriate space heating or cooling category. 403.1.3 The equipment efficiency shall be supported by data furnished by the manufacturer or shall be certified under a nationally recognized certification program or rating procedure. 403.1.4 Where components, such as indoor or outdoor coils, from different manufacturers are used, the system designer shall specify component efficiencies whose combined efficiency meets the standards herein. 403.2 403.2.1 403.2.2 (a) When the equipment selected is the smallest size needed to meet the load within available options of the desired equipment line. (b) Standby equipment provided with controls and devices that allow such equipment to operate automatically only when the primary equipment is not operating. (c) Multiple units of the same equipment type with combined capacities exceeding the design load and provided with controls that sequence or other

official document · source cfr-2024 · id 10:§ 434.403