Mixing R22 and R410a

[Motel Guy]

I had a tech come and service my AC the other day and he put R410 refrigerant in in my R22 system. He said you can mix up to 20% as long as you keep the pressures in line. Is this true ? He said the real problem is the oils and when you add refrigerant you are not adding oil. Is that right ? Sounds fishy to me. Thanks in advance for your thoughts.

[Dr.phil]

He needs to recover that charge. Then evac and recharge the unit properly. Don't run the system until it's repaired. That company will have to pay to have that refrigerant destroyed.

[hvacpope]

Call your tech back and ask him to put 3LB of 134a and 15.5oz of 404a and your unit will work better than ever before make sure he changes the oild to mobil 5w30

[fcs]

NO EPA say NO

Anyone who Know anthing about HVAC knows thats WRONG.

A Tech like that should not be allowed to work in HVAC

[jpsmith1cm]

Call your tech back and ask him to put 3LB of 134a and 15.5oz of 404a and your unit will work better than ever before make sure he changes the oild to mobil 5w30

[Chris_Worthington]

Shouldn't you be out celebrating your birthday???

BTW, Happy Birthday !!!!

[basshound71]

Dude was a dumbass.

[Tiger93rsl]

It's sad companies send guys like that out to run service.

[the mojo]

With those two common gases, he would be in the wrong.

But EPA does allow you to mix,if and only if you can't get your hands on the original refrigerant.

[uniservice]

You gotta be kidding!!!!!!!!!!

[hvac wiz 79]

that guy deserves a punch in the throat ...

[Theantihack]

So what if the epa allows you to mix? Are you serious? The 2 ref. couldn't be much more different. 2000 Posts and you never looked at a flash or saturation temp

[whoward]

Is this guy crazy!!!!!!!!!!!

The oils are different, the pressures are different, and the copper used to make the coils is different. Never let this close to anyone you care about ever again.

We cannot even use the same gauges with these two refrigerants because of the differences. This is so crazy it is almost absurd!!

[nyc]

lmao this made my day

[chaard]

Is this guy crazy!!!!!!!!!!!

The oils are different, the pressures are different, and the copper used to make the coils is different. Never let this close to anyone you care about ever again.

We cannot even use the same gauges with these two refrigerants because of the differences. This is so crazy it is almost absurd!!

Some mfr's haven't changed the copper.
We are having problems with R410a systems leaking. They include Lennox, Amana and ADP.

[fcs]

With those two common gases, he would be in the wrong.

But EPA does allow you to mix,if and only if you can't get your hands on the original refrigerant.

NEVER heard that ?? could you please post that EPA Reg.

Not being a $mart a$$ just NEVER heard EPA state anything like that and would like to see that reg form EPA

THanks

[the mojo]

NEVER heard that ?? could you please post that EPA Reg.

Not being a $mart a$$ just NEVER heard EPA state anything like that and would like to see that reg form EPA

THanks

http://www.epa.gov/ozone/snap/refrig.../reftrans.html

75% R-134a
25% R-32 & R-125 = R-410 =R-407D

[fcs]

http://www.epa.gov/ozone/snap/refrig.../reftrans.html

75% R-134a
25% R-32 & R-125 = R-410 =R-407D

OK I now understand what you thinking, however I don't believe in fact I thought EPA forbid what I call field mixing.

Are you say EPA allows this??? is so could you show that reg.

I would like to see reg and be able to show quote it to an EPA Rep for clarification. This would be be nice Infor to have on hand.

Thanks

[hvacpope]

I thought ASHRAE was the entity in charge of approving refrigerants blends. as far as I know EPA is more or less another layer of government bureaucrats gathered under the pretenses of protecting the environment.

[fcs]

I thought ASHRAE was the entity in charge of approving refrigerants blends. as far as I know EPA is more or less another layer of government bureaucrats gathered under the pretenses of protecting the environment.

ASHRAE is a professional Society it has No legal or Regulatory authority.

EPA,or other Federal, State, or local agencies/authorities my choice to Use/adopted ASHRAE reg it a law or code.