i guess that would be a "specialty application". but how did you determine their material? when you say "fins", do you mean the grate-like arrangement at the back of a common refrigerator?
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11 years ago
Car AC theory question
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11 years ago
The condenser coil on the vending looks like a small radiator with a fan. The condensing unit is usually underneath mounted on a steel base with the compressor. The units can be slid out for servicing and or replacement. Take a look under a Coke vending machine or glass door Coke box and you may see the condensing unit. If you see a vender loading a soft drink vending machine, the door will be open and the condensing unit should be visible at the bottom. Ask the guy to point out the condensing unit for you. ^_^
TDD
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11 years ago
Gas tight joints are not required between fins and tubes. The tubes are generally copper or tin-plated copper, with the find press fit to the tubing.- not even soldered in many cases.
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11 years ago
true.
right
fins?
that's where i'm having the problem. steel is a poor conductor - it makes more sense to have the tubes steel and the fine fins made of copper or aluminum than the other way around.