Articles by Paul Appler

Leak Detection Tools: What You Know and a Few Things You Don’t

Which Tool Is the Best? There Is No Best.
By this time, on your career path as refrigeration and air conditioning technicians, you should already be aware of all the methods used to find leaks. The choice of tool is totally up to you.


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The Good Times and Bad Times of Moisture and Sealants

The relationship between high-performance air conditioning and refrigeration (ACR) sealants and moisture is similar to a dysfunctional marriage. ACR leak sealants can’t live with moisture and they can’t live without moisture.


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Sealers: Friend or Foe

With more than 1 million sealant applications now sealing and preventing leaks in air conditioning/refrigeration systems worldwide, the odds are high most service techs will be confronted, if not already, with recovering refrigerants that have sealants in them. A common question is whether recovered refrigerant/sealant combinations will clog manifold gauges, recovery machines, etc.
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2014 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

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NEWSMakers: Kari Arfstrom

Kari Arfstrom, executive director of the HVACR Workforce Development Foundation, talks about the upcoming HVACR & Mechanical Conference. Posted on Jan. 23.

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2015 January 26

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Regional Standards

With regional standards for a/c equipment going into effect in 2015, how do you think it will impact the industry?
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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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