Humidification Basics Part 1: Why Humidify?

Humidification Basics Part 1: Why Humidify?

Ever hear the phrase, “It's not the heat, it's the humidity”?

In the commercial HVAC industry, we’d like to reshape that idiom to, “It’s not just the heating and the cooling, but also the amount of moisture in the air that impacts comfort, health, building materials, building content, medical procedures, and production processes and quality.” 

But admittedly, that’s a mouthful

Suffice to say that properly controlled humidification is an essential part of HVAC design, which is why we’ve decided to dedicate an entire series to the subject, starting with why we need to humidify spaces in the first place....

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Parallel Pumping in Condenser Applications: Part 5 of 5

Parallel Pumping in Condenser Applications: Part 5 of 5

Over the last few weeks the we’ve looked at pumping issues with multiple condensers and pumps.  We have received questions about the topic, including these two:

Why do I need cooling tower outlet On-Off valves if I have an equalizing line?

Why do we see outlet On-Off valves on almost all jobs in North Carolina and only half the jobs in Michigan and Northern Ohio?

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Parallel Pumping in Condenser Applications: Part 2 of 5

Parallel Pumping in Condenser Applications: Part 2 of 5

In Part 1 of this series we offered an example of a condenser water pumping system with 800 GPM per condenser for a total of 1600 GPM with the third condenser serving as standby. The tower elevation or lift is 10 feet, the condenser (with the 2-way valve and balance valve) has 20 feet of pressure drop, and the common piping with any safety factor has 30 feet of pressure drop. But there was a problem....

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