Commercial Refrigeration for A/C Techs w/ Dick Wirz (Podcast)

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Dick Wirz, author of “Commercial Refrigeration for Air Conditioning Technicians” talks about making the switch to refrigeration, Evaporator split, defrost and more…

If you have an iPhone subscribe to the podcast HERE and if you have an Android phone subscribe HERE


  1. Avatar Don Ballew says:

    This was one of my favorites so far, I have listened to this several times already and find myself wanting to listen to it again.

  2. Avatar Tim Tanguay says:

    30F condenser split rule of thumb isn’t a rule of thumb anymore. Low seer 30F condenser split systems are on the way out.

    Even within the r22 systems, a lot of them have a 20F or 15F split on the condenser. Generally units with stacked condensers do not have a 30F split.

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