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Techman
Techman Member Posts: 2,143
in A-C, Heat Pumps & Refrigeration
1-800-297-5660. Operators standing/sitting by! Lots & lots of knowledge! Monthly magazine packed with stuff you didn't know.They have SAM Binders ,9 1/2" thick, filled with STUFF , like how to work on an AC system in cold/cool weather using a piece of cardboard to help control the head pressure! WOW! Duct Work, motors, electricity, freons, dozens more! WOW one more time!

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