WSHP System Control and Optimization Part 4: Why Waterside Economizing Might Not Improve Efficiency

WSHP System Control and Optimization Part 4: Why Waterside Economizing Might Not Improve Efficiency

Engineers seeking to meet the waterside economizing requirement of ASHRAE 90.1 - 2013 do not necessarily have to specify multi-zone commercial water source heap pumps with integral economizers. In fact, doing so may undermine efficiency.

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Hydronic Balancing Part 8: Read & Set Proportional Balance Method

Hydronic Balancing Part 8:  Read & Set Proportional Balance Method

The task of proportional balancing is the first step to achieving an energy efficient pumping system.  It involves adjusting the system balancing valves to make certain that all zones get proportionate flow under design conditions.  Once this task is complete, it gives us the opportunity to trim the fat out of the system for greater efficiency... 

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Hydronic Balancing Part 1: The Standards and Driving Force Behind the New Requirements

Balancing plays a critical roll in the performance of any hydronic heating and cooling system. For that reason alone, ASHRAE has made hydronic balancing a non-negotiable stop on the road to compliance with ASHRAE 90.1-2010 (or 2013), starting with this requirement....
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