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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Domestic Hot Water Recirculation Part 2: Where ASHRAE 90.1 Conflicts with OSHA

When it comes to domestic hot water recirculation design, OSHA safety provisions and ASHRAE 90.1 energy efficiency requirements have put plumbing engineers between the proverbial rock and hard place. In an effort to minimize the energy penalty associated with mandatory domestic hot water recirculation, ASHRAE 90.1 has created operational parameters for these systems. The problem is that these parameters are in direct conflict with OSHA’s requirements for Legionella prevention.
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Cooling Tower and Condenser Water Design Part 11: Avoiding Common Pitfalls

We thought it would be a good idea to review some of the most common pitfalls in cooling tower/condenser water design and how to avoid them. We see these so often and the consequences can be so profound that each bears a final warning. Take care to avoid these scenarios and we promise that everyone (from your equipment suppliers to your chemical treatment specialist) will be much happier.
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