Monthly Archives: October 2013

Milestone for My Little Blog

Posted on October 29, 2013 by yorkcentraltechtalk

I want to use this post to THANK all of you who have been reading these post and, especially those who subscribe to this blog site. As of this morning, this blog hit, what I consider a milestone —– 100,146 views as … Continue reading →

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Older Sunline Units – Troubleshooting Heating

Posted on October 24, 2013 by yorkcentraltechtalk

For those who subscribe to my blog, you probably just got an email saying there was a new post on Sunline and , guess what — I goofed – instead of hitting save, I hit send.  So here is what I really wanted … Continue reading →

Posted in HVAC Tech Support | Tagged , , , , , , , , , , , | 4 Comments

New Economizer Control

Posted on October 18, 2013 by yorkcentraltechtalk

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  Not that the information on the old controls is obsolete … Continue reading →

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Economizers –Revisited Part 4

Posted on October 6, 2013 by yorkcentraltechtalk

In this fourth and final post on Economizers, I’ll try to go through troubleshooting the mod motor and the logic module.  In the last post, we went over the enthalpy sensors and discharge/mixed air sensors diagnostics.  Now we begin  with the … Continue reading →

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Economizers — Revisited Part 3

Posted on October 1, 2013 by yorkcentraltechtalk

If you have been following my last two posts, by now you should understand what an economizer is; how it works; and how to properly set it up. Now, as promised, we’ll get into troubleshooting the economizer and its various … Continue reading →

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