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Approach temperature and an AHRI 400 rating are probably the two most critical factors when it comes to selecting a plate and frame heat exchanger for maximum efficiency and guaranteed performance. Do yourself and your client a favor and…
Read MoreWaterside economizing typically involves the transfer of BTUs from an open loop cooling tower system to a closed loop chilled water system. Since these two hydronic systems must remain separate so we do not foul the chilled water systems, a heat exchanger is required to prevent mixing of the fluids, but what type of heat exchanger should you choose?
Read MoreWaterside economizing relies on cold water from the cooling tower (aka condenser water) to absorb some or all of the heat from inside the building. In typical waterside economizing applications, plate & frame heat exchangers are used to…
Read MoreBy Chris Edmondson
It’s time we all start economizing – and no, we’re not talking about budget.
ASHRAE 90.1 – 2010, which officially becomes part of U.S. commercial building codes in less than one year dictates that henceforth all cooling systems shall include either an air or water economizer per Sections 6.5.1.1 through 6.5.1.4. The only areas in the U.S. where this will not apply are the southernmost tip of Florida and south/southwest portions of Arizona where the respective climates do not favor economizing.
Read MoreBy Chad Edmondson
It’s hard to believe the end of summer is only a few weeks away. It’s a stark reminder of how quickly time passes – and how quickly October 18, 2013 will also be here.
(What? That date doesn’t ring a bell?)
It should. October 18, 2013 is the official date by which all states are required to certify that they have updated their commercial building codes to meet or exceed the new energy efficiency of ASHRAE 90.1 – 2010.
This is BIG
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