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September 5th 2014

We have just had our third turbocor compressor changed out by Cayce Mechanical. Cause of module failure ? possibly, we think, stator...

The front panel gives good instrumentation and an accurate indication of the temperature both inside the turbocor and temperature at the metal cooling plate. A "good" temperature on my specific...

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Noted, However, remember that all centrifugal manufacturers have brought out newer designs based on different operating physics, enabled partly by using particular new low pressure...

OK, I'll start by raising it 5 degrees

I was charged 3 years ago with advising what kind of equipment to purchase at the University of South Carolina School of Medicine to change out our 1970's Trane centrifugals.

I had only one month...

This should be a reply to the question whether POE oil can "suck in" moisture with 5 Lbs positive pressure

There is negative pressure measured in hg (vacuum). There is positive pressure. How does...

I spent two months evaluating three or four competing brands sold in SC. I, along with other managers at our facility visited 4 -5 sites sites looking at different "brands": I also saw a multistack...

I do not understand your point. On new technology, you would want factory trained people, no? The factory trains people to go through "the checklist" and not take any short cuts. They are also...

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Teki,

I may not have explained something.

You have to understand that "older technology 1975" (which was THE BEST at the time) came up with the...

To the person that thinks all you have to do is buy two jugs of refrigerent. Think about this. We are not using pure refrigerents anymore. We are using blends and azeotropes. That is to say when you...

Try this:

We are assuming that you have common sense and are going to completely shut off the 220 volt breaker and that everything will be deenergized or unplugged.

Ideally heat pump coil...

I researched a company up north innovating in geo, burying refrigerant lines in the ground. It is particularly great if it touches or is bathed in water. Heat transfer can be very efficient, but...

To: Teki I don't know if you are a younger guy.

Those of us older guys who baby sit 1980 250 ton Carrier or Trane units with Wye / Delta startup have units with motor control boxes 10 feet high,...

5/24/2011
We are looking at traditional long barrell (tube in a bundle) coolers. They are tried and proven but fairly long. I am fairly hesitant to recommend a "stacked plate heat exchanger version...

Temperature sensors are often either positive temperature coefficient or the reverse. Assuming they use a resistance scale, they can be "tight" tolerance or 'loose' tolerance.

While one brand of...

I am an acting hvac supervisor (technician) at the University of South Carolina School of Medicine in Columbia South Carolina. I was asked about two months ago to start to evaluate different brands...

Linc was started many years ago by some people who then were working for Carrier Corporation.

As happens, they got the bright idea of going out on their own and creating a franchise incorporating...