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