Provide Clients with Optimal Sytems, Not Efficient Pieces
Designing from equipment with high efficiencies is just a part to the puzzle. Taking a "Top Down" approach allows you to determine the best design for that building type and meet each clients expectations. How systems integrate determines overall performance, which translate into building codes and standards, energy star scores, total life-cycle operation and true efficiency of the entire system.
Calculate new refrigerant pressures for operating and efficiency to determine the best options for industry choices, not just the minimum. This also impacts client energy and efficiency demands, thinking forward to prevent phasing out and equipment changes due to environmental regulations. This translates into first cost factors, lifetime service costs, lifetime refrigerant supply and lifetime electrical costs. It is important to consider how energy transfers throughout the building. Don't loose focus on whether the system is distributed air versus distributed water when selecting refrigerants.