FREQUENTLY ASKED QUESTIONS
What is Eddy Current Testing?
Eddy Current testing is a non-destructive accurate method of analysing your air conditioning
and heat exchanger tubes. It can be done quickly with minimal downtime. This type of
testing will identify problems which cause tube leaks that result in major repair costs
and extended downtime.
How often should Eddy Current Testing be done?
Preventative testing is recommended on all tube bundles at least every (3) three years. Eddy
Current test results can be compared to the prior test to help determine rates of tube
deterioration as well as predict future tube life. In some cases where well water is being used
or there is no water treatment, then yearly Eddy Current testing is recommended.
How much does Eddy Current Testing cost?
Various factors determine the cost of an Eddy Current Test such as the type of machine, the
quantity of tubes, the driving distance, etc. Please contact Eddy Current Analysis with your
make, model, and serial number and the location of your chiller and we will be happy to send
you a bid.
Does Experience Matter?
Eddy Current Analysis technicians have been trained and certified in accordance to guidelines
established by the American Society of non-destructive testing. It is very important that the
technician performing the ECT (Eddy Current Test) understands the various types of
machines and tubing as well as the proper techniques in performing an ECT. Eddy Current
Analysis will provide a certified Level III technician as per SNT-TC-1A guidelines.
How should I prepare my chiller for Eddy Current Testing?
1) Remove the head from the 'easy end' (the easy end is the head without the piping).
2) Place the head away from the test end, normally along the side of the machine.
3) Manually brush the tubes with a good tube-brushing machine. I recommend the Goodway
Model RAM-4 or the RAM-6.
How important is Water Treatment?
Although there are many things that could cause damage to the tubes such as vibration,
debris, or stress; the single most common problem that we encounter is improper water
treatment. We know after completing our test whether or not your water treatment
program should be reviewed.
Eddy Current Analysis
Steve@EddyCurrentAnalysis.com
913-652-9898
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