1.6K views · 14 reactions | The Paragon 8145 Defrost Timer explained, compared to my wiring diagram from school . . Pardon the shaky coffee-fueled hands lol . . . . . . . . #paragondefrosttimer #paragontimer #paragon #defrost #defrosttimer #refrigerationtech #refrigerationlife #refrigeration #hvacr #hvacrlife #hvacrapprentice #apprentice #hvacrschool #refrigerationsystems | HVACjess | Facebook

I usually get to change one of these Paragon defrost timers a year, and yesterday it happened! . We found a walk-in cooler at a pizza place all frozen over and found the clock no longer ticking. When I pulled it out, you could see some of the cogs all worn down, no longer making contact to turn it . And whenever I post about these mechanical timers, I get comments about "how vintage" and "I haven't seen one of those in years!" But we literally learned to draw them in refrigeration school and I s