When it comes to air conditioning, there are a few common codes and standards that must be met in order to guarantee safety, reliability, and energy efficiency. These include ASHRAE 90.1, the ICC International Energy Conservation Code (IECC), NFPA 70 (National Electrical Code (NEC) and the UMC Uniform Mechanical Code (UMC). Meeting these standards is essential for any HVAC system. The IECC and ASHRAE 90.1 regulations set minimum equipment efficiency requirements for all HVAC equipment.
It's important for designers to build relationships with manufacturers' representatives to use them as a resource during the design process. Additionally, the AEDG can provide ideas for improving the efficiency of refrigeration equipment based on specific climate tables. It's also wise to request two or three selections of equipment or systems from the supplier and perform an amortization analysis to justify any additional costs to the owner. The International Residential Code (IRC) is another important standard for single-family or two-family homes that have three floors or less. While it doesn't specifically focus on HVAC standards, it's fundamental to all residential building operations and must be considered. If ASHRAE standard 189.1 is used for the design effort, the minimum system design requirements and equipment efficiency requirements presented in that standard replace the requirements presented in ASHRAE standard 90.1.In general, there are some standards for HVAC installations that must be met wherever you are.
Highly efficient designs that use high-performance air conditioning systems often require additional effort and collaboration on the part of all members of the design team compared to conventional designs. ASHRAE guideline 36 improves the energy efficiency of air conditioning systems by providing standardized control sequences. The first step in designing any efficient and effective air conditioning system is to decide energy objectives at an early stage of design process. The use of high-performance HVAC equipment can result in significant energy and cost savings. ASHRAE has been a leading authority in the industry for over a century, providing valuable resources to HVAC professionals around the world. For HVAC installation codes and regulations specific to your county, municipality, or district, it's often best to contact your local government directly.
Additionally, there are state-by-state resources available so you can find the localized HVAC standards and requirements you need to know. If your HVAC equipment is in good condition and meets your heating and cooling needs, there's no need to buy a new one that meets new industry standards. Field tests of HVAC control components involve the validation of the physical installation, positioning and accessibility of the different types of control devices used in HVAC.
