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montreal protocol and its consequences
All the summary rulings can be explored at the EPA website. Look for section 608 and 609 final rule summaries. We are all being effected by higher energy comsumption, on the average of about 10% higher energy requirements than before the protocol, on retofitted equipment. Its a job security...- tk
- Post #2
- Forum: HVAC/R engineering
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gas interchangebility
sudhanshu The easy answer is no. Most compressors are designed to compress a specific gas, and are designed for either high, medium, and low design temperatures. Some of the open compressors can handle most all gasses and design temps. Retrofit or conversion gasses are designed for...- tk
- Post #2
- Forum: HVAC/R engineering
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Running in a Vacuum
I cannot recommend that you alter a balanced, designed system. If you persist,the tools required are as follows: a licence, a torch, silversolder, a cap tube guage, guages and line taps, 5 thermometers,t/p chart, ampmeter, recovery machine, digital scale, proper supply of refrigerant, vacume...- tk
- Post #3
- Forum: HVAC/R engineering
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Evaporator coil loss of heat transfer
It has come to my attention that when compressor discharge temperatures rise in the 300 / 325° range, a insulating barrier can form on the interior tubing walls. The system spec's are R-502 with alkybenzene oil.<br> This has been named "coke". I have seen compressor...- tk
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- Replies: 0
- Forum: HVAC/R engineering
