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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 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

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NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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2014 October 20

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EFFICIENCY STANDARDS

DOE has denied AHRI’s petition for reconsideration of walk-in standards. Is it getting harder to reach consensus on efficiency standards?
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HVACR INDUSTRY STORE

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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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