Jim Wheeler: HVAC

Industry veteran Jim Wheeler’s Air Side column covers topics of interest to the HVAC community.

ARTICLES

How efficient can air-conditioning units be?

Raising the bar on air-conditioning units.
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Improper air-flow design will create havoc

From the title of this article, you might assume this is something religion- or metaphysical-related.
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Is your company prepared for another downturn?

Beware of the bull market.
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The advantages of hiring experienced professionals

Counter smarts.

I headed over to my local hardware supply to see “Joe,” the store’s plumbing guru.


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Increase your sales with strong outside salespeople

It’s a people business and outside salespeople can grow your sales if they are well-liked and viewed as helpful.
Out and about.


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Is it time for refrigerant recycling machines?

Opportunity knocks.

The EPA passed a law (which had nothing to do with the environment) that forbids HVACR contractors from doing their own recycling in order to sell recovered refrigerant.


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The case for UV and ozone system cleaning

See the light.

Did you know a UV light tends to keep the condensate drain clean?


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Understanding the emergence of micro-channel and micro-groove coils

Design differences.

The premise behind “micro-groove” coil construction is to continue with the standard copper-tube and aluminum fin design we all are so familiar with, but do so with smaller internally enhanced tubes that have thinner walls. This reduces the amount of copper, as well as the cost, size and weight of the coils.


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Use these commonsense air-conditioning techniques

System longevity.

Shortly after the magazine came out, I received an email from a reader pointing out the obvious — that obtaining superheat and subcooling readings usually requires the use of both gauges and a thermometer. Yes, this is true. But perhaps I should have gone on to add the following.


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2014 AHR Expo: Part 2

Where is the refrigerant industry headed?

At each AHR Expo I look forward to meeting with the people from Airgas — an important supplier of refrigerant reclaim services to our industry — because I can rely on what the company tells me.


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BNP Media's Plumbing Group Visits Grundfos North American Headquarters

BNP Media’s Plumbing Group, comprised of the Plumbing & Mechanical, Supply House Times, PM Engineer (pme) and Reeves Journal brands, recently visited Grundfos’ new North American headquarters building in the western Chicago suburb of Downers Grove, Ill.

8/26/14 1:00 pm EST

Free Webinar: Low Temperature Heat Emitter Options in Hydronic Systems

With proper design, you can create systems that require supply water temperatures no higher than 120° F under design load conditions.

Supply House Times

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2014 January

SHT's packed January issue incdues the cover story: M&L Supply is rich in heritage and customer service; features:  Industry optimism continues to rise heading into the 2015 AHR Expo, and Distributors discuss top industry issues: Part 2; and so much more!

 

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