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.
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.
The September 2017 issue features our cover story on how the ASA Education Foundation continues to impact the PHCP-PVF industry through the Karl E. Neupert Endowment. Other features include a preview of ASA's NETWORK 2017, a recap of ISH China, and much more.