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Been sitting here pondering where the last 40 years
Have gone. Most tech today were not even born before the 72 oil embargo.There was only 5 makers of heat-pumps and with-in 12 months there was a total over 40, and boys and girls there were some real dogs out there. I mean real bowwow ( LOL ). Nobody is going to go unscathed tonight folks. Westinghouse and their famed flooded evaporator, took 30 lbs of r-22 to charge a 3 ton unit. Square D and their electronic expansion valve that worked maybe 20% of the time, Fedder's and their famed aluminium block compressor, Marv Air can't find anything good to say about that bow wow. Amana had the only heat-pump that energized the S.O.V. in the heat mode
York and their defrost board ( LOL ) the board cost almost as much as the unit itself. Trane before they bought G.E. had their hand in the mix to; but the factory went on strike and nobody knew for sure what you would get one order to the next. Well that left Carrier, Lennox and General Electric and they to had problems from time to time. The only issue Carrier had was they used a compression type of fitting, well we all forgot that soft tubing is oval to a degree and will leak sooner or later. Lennox had the line-set full of little steel balls for metering the refrigerant flow, that worked great until you had to cut the line-set .The big G.E. boys and that stupid Dwyer / Klixon defrost control, they finally did away with that.
Now back to the main plot ( LOL ) sitting in the shop late one very cold Thursday night. The ole man was snorting and raising the roof over a call-back that came in. Well on Thursday nights that was free beer at the shop night and I was leading the group of 7 techs. My dad was so cheap he wouldn't let us turn the heat on in the back until it got down to 58. Okay fellows I am getting tired will finish up tomorrow.