Tag Archives: ecomomizer

I must be doing something right!

Back in April 2011, I started writing on this blog site as a way to help my local contractors and dealers. Most of the posts were based on issues these persons were experiencing and this was a good forum to … Continue reading

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Air Conditioning and Humidity Control

I recently received this question from one of this site’s readers: “Is it a good or bad idea to leave the ahu fan on in a commercial system?This facility is a bank and is experiencing a higher than normal moisture … Continue reading

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3 Bad Boards in 3 Months?

What do you think the odds are of a new roof top unit going through 3 control boards in just 3 months since the unit was installed? And, if this truly was the case, don’t you think some one would … Continue reading

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New Honeywell Economizer Controls – Part 2

So, now that you have read my last post and have an “overview” of the new economizer control, we can get into the nitty-gritty of how to install and set-up, and diagnose the new economizer. The installation part is easy. The … Continue reading

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New Honeywell Economizer Controls

Spring is in the air (but we still have some snow too in the north central region) and as our thoughts turn to COOLING, we need to look at the ECONOMIZER.  Economizers still are the most misunderstood, misdiagnosed, most often … Continue reading

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100% Outside Air? (part 1)

I was recently asked the question, “Can a packaged roof top unit be used to heat and cool 100% outside air?”  It appears the contractor is trying to turn a packaged unit into a cheap “make-up air unit”.  While I’m sure the salesman … Continue reading

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New Economizer Control

Just when you think you can’t learn anything new about economizers,  Honeywell is going to phase out all of those controls and is introducing a new control — the W7220.  Not that the information on the old controls is obsolete … Continue reading

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