- Is there a difference between 134a and r134a?
- Can I use motor oil in my air compressor?
- What color is refrigerant oil?
- When should I add oil to my AC?
- Can you add too much oil to AC compressor?
- How much refrigerant oil should I add?
- What happens if too much oil in AC system?
- Can I mix r12 and 134a?
- Do I need to add oil when recharging AC?
- Does refrigerant contain oil?
- How much oil does a r134a system take?
- How do you tell if you have r12 or 134a?
- Does all 134a refrigerant have oil in it?
- Does vacuuming AC remove oil?
- Is refrigerant oil toxic?
- Why is vacuum pump oil used instead of refrigerant oil?
- Is venting r134a illegal?
- What type of oil do you use with r134a?
- How harmful is r134a?
Is there a difference between 134a and r134a?
R134A or HFC-134A became the accepted standard, because it has no potential of ozone depletion and has similar (but not equal to) cooling abilities to the R-12 and R-22 refrigerants.
R152A is slightly less dense than R134A, so it can theoretically contribute to better fuel economy as well..
Can I use motor oil in my air compressor?
Non-detergent (20-weight or 30-weight) motor oil can work on an air compressor. Be sure to check the specifications of the motor oil you’re buying before using it in the compressor. Use the non-detergent motor oil only if the air compressor manufacturer recommends it.
What color is refrigerant oil?
Refrigerant or PAG (synthetic compressor) oil is clear, he explains. Over time, it picks up moisture and turns acidic, eating away at the condenser, thermal expansion valve, evaporator, fittings, compressor and other metal components. Gradually, the oil turns yellow and darkens as it picks up particles and sludge.
When should I add oil to my AC?
You normally do this when recharging the system after replacing one of the major components. This is tricky. The service manual normally tells you how much refrigerant oil should be added with each major component replaced on the AC system.
Can you add too much oil to AC compressor?
Yes. AC systems are designed to have a certain amount of refrigerant and a certain amount of oil. Adding too much oil will hinder performance. If you add way too much oil, you displace refrigerant which is needed to cool the compressor and it could lead to compressor burn out.
How much refrigerant oil should I add?
The total system oil capacity for many late model passenger car A/C systems is only about 4 ounces (120 ml). A low oil level can starve the compressor for oil and lead to compressor failure. CAUTION: Do NOT overfill the the A/C system with too much compressor oil. Too much oil can hurt cooling performance.
What happens if too much oil in AC system?
Oil logged in the evaporator will coat the inner wall of the coil and reduce heat transfer through the walls. This will cause a loss of capacity and poor performance. The compressor will be robbed of some of its crankcase oil and will run with a lower-than-normal oil level.
Can I mix r12 and 134a?
You cannot mix R-12 with R-134a, they are not compatible (and neither are the compressor oils used with them).
Do I need to add oil when recharging AC?
Yes, it’s a good idea to add a bit of oil. Whenever refrigerant is lost oil is also lost with it as the oil under pressure becomes a fine mist. Sometimes you may see an oil/dirt residue that has accumulated at the spot of a leak due to this oil mist.
Does refrigerant contain oil?
Some refrigerant compressors operate without oil, but are much more expensive to buy and maintain. As a result, most industrial refrigerants use oil, which poses environmental issues due to the periodic need to drain and replace the lubricant, and dispose of the old oil.
How much oil does a r134a system take?
The AC system in most modern vehicles needs a total of 4 ounces (120 ml) of oil. So, checking the manual is a good idea to be sure of the exact amount and to avoid over- or under-filling the system. A low level of oil may cause compression failure, and overfilling will also hurt cooling performance.
How do you tell if you have r12 or 134a?
R12 fittings look like a tire valve stem, with threads on the outside. R134a fittings look like a air hose ‘quick connect’ fitting.
Does all 134a refrigerant have oil in it?
Yes there is oil in the system to keep the compressor lubricated. It is carried throughout the system in the refrigerant. It is usually added in when the system is charged.
Does vacuuming AC remove oil?
It is always best to utilize a good micron guage to monitor your vacumm progress but I doubt that you will ever have trouble with MVAC applications pulling down low enough to bother the oil.” it makes sense to me so my own conclusion is : NO, vacuum for 1 hour won’t remove oil from the AC system.
Is refrigerant oil toxic?
Freon is a tasteless, mostly odorless gas. When it is deeply inhaled, it can cut off vital oxygen to your cells and lungs. Limited exposure — for example, a spill on your skin or breathing near an open container — is only mildly harmful. However, you should try to avoid all contact with these types of chemicals.
Why is vacuum pump oil used instead of refrigerant oil?
2. Why is it so important to change the oil often in my vacuum pump? The proper oil in a vacuum pump acts as a blotter and absorbs all of the moisture and non-condensables. As the oil becomes saturated with these contaminants, the efficiency of the pump is dramatically reduced.
Is venting r134a illegal?
As I’ve said, R12 is a nasty ozone-destroying chemical and should never be released to the environment under any circumstances, so in addition to being illegal to vent it, you have a moral obligation not to vent it. R134a is not an ozone-destroying agent, but it is a greenhouse gas, and is illegal to vent as well.
What type of oil do you use with r134a?
Polyolester oil (POE oil) is a type of synthetic oil used in refrigeration compressors that is compatible with the refrigerants R-134a, R-410A and R-12. It is recommended by experts as a replacement for hydrofluorocarbons (HFCs).
How harmful is r134a?
Adverse Health effects. The inhalation of high concentrations of R134a vapour may cause temporary central nervous system depression, with narcosis, lethargy and anaesthetic effects. Continued breathing of high concentrations of R134a vapours may produce cardiac irregularities, unconsciousness and death.