Any amount would be a contamination. Charging with clean R410a does not introduce POA oil, which is where a serious contamination would occur. Mixing R410a without oil will simply render that amount of charge in your system as ineffective. To answer the question how much contaminates, it could be seen on a sliding scale, a very small amount, say a couple ounces, probably will not see a noticeable change. A pound, and you would likely notice some changes in performance related to temps. of evaporator as well as the amount of liquid refrigerant its producing to send to the evaporator. As you increase the ratio of R410a to R22, you would only see incrementally worse performance as the compressor is not producing the pressure required to get any use of R410a. If you had somehow introduced R410a with its oil, their would be a serious reason to pull the entire charge, flush the system, and start clean. The oils of R22 and R410a are %100 not mixable, they will be rendered useless, and system damage will occur shortly.
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pulley system, much like the cabled elevators work.
About 10 degrees
Standard measurements make it easier for everyone to know what that measurement means. The metric system, which is the standard system used by scientists, is specifically designed to be easy to use. The English system is much more complicated, mathematically.
Standard measurements make it easier for everyone to know what that measurement means. The metric system, which is the standard system used by scientists, is specifically designed to be easy to use. The English system is much more complicated, mathematically.
Absolutely not ... R410 operates at much higher pressures than R22, and mixing would do nothing but contaminate both refrigerants (and possibly mess up your system)
Over one billion bacteria can contaminate the surface of a fomite. Bacteria can contaminate any kind of surface in seconds.
replace all of it, otherwise it will contaminate the new fluid
Well, chemicals can harm you if you eat your plants, it can seep into ground water and contaminate drinking water, and can, if you use too much, kill plants.
Depends on the system :D
Yes you can have too much refrigerant in your A/C system and it will damage the system. The only way to know how much is in the system is to measure it by using a gauge.
Rwanda has a poor economic system. Much of it is agricultural.
Traditional chemical pesticides contain harsh chemicals that contaminate crops. Transgenic methods are much cleaner.
Snow that is other color but white (seeming clean) could indicate a contaminate and should be not be eaten much less played in. Probably a good idea not to eat snow of any color.
a system in which much of the world oppose us leadershipwould be a --- model
Hurricanes can damage and uproot plants through hid winds and flooding and can contaminate water supplies with seawater. A the same time, hurricanes can also give plants much needed water in the form of rain.
The price for a CCTV system varies depending on how much surveillance you want. A simply system costs about $100, while a more thorough system would cost $500 and up.