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Thread: Refrigerant 410A
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20-12-2015, 08:14 AM #1
Refrigerant 410A
Hello to all members,
please give me information about 410A v R22.
We are charging R22 in 1.5 ton air conditioning unit about 60-70 pound what about air condition like 410A how much refrigerant required in pound.Last edited by frank; 20-12-2015 at 07:43 PM.
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20-12-2015, 08:41 AM #2
Re: Refrigerant 410A
18,000 Btu A/c on R22 cannot be changed to R410A.
R410A A/C's suction pressure is much higher. 115 to 120 ish Pounds per Square Inch is basically the normal under load conditions.To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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01-01-2016, 01:39 AM #3
Re: Refrigerant 410A
R22 to R410a is not compatible
i have been doing R22 to R438A with an oil additive and so far have been successful with no known issues with systems operating for the last 4-6 months
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25-02-2016, 04:23 AM #4
Re: Refrigerant 410A
I have been out of the country for 10 years now. I haven't been really keeping up with the information. Where I am here in Belize, Mini Splits are the norm and very little of that. It's a poor country so not much of it. My question is this. I have a customer with a 5 ton Nordyne R-22. We live on the beach so the outside unit is in bad shape. I want to replace the outside unit with an R-410-A condenser. Providing the check flow regulator is the same, will the system operate with the new piston provided as long as I flush the evap coil and lines. Has anyone had experience with this. This is all new Technology here lololol and I was to retire here but they found out what my profession was. Thanks
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25-02-2016, 08:34 PM #5
Re: Refrigerant 410A
Rather than repeat and adding to what fellow engineers have already said.
Just watch this Video!
https://www.youtube.com/watch?v=qxwcVKjJuSQ
Are you going to get the customer to sign a disclaimer? so should any of the components fail you cannot get sued?
If you don't know most of the issues discussed you certainly are not going to (I assume?) have the correct equipment designed to work on R410a.
Trust me the Pressures in a R410a system are 60% higher than R22.
Here in the UK we will pressure test a new system to approx. 675psi to accommodate our Highest average ambient temperature.
The loading in Belize will be way above that, never mind he 80% Humidity!
Don't miss the part about Mineral Oils and POE Oils!
GrizzlyDespite the High Cost of Living it still remains Popular!
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Re: Refrigerant 410A
R-22
Often referred to by a brand name like *****
As of 2010, R-22 was discontinued for use in new air conditioning systems
R-22 is a hydro-chlorofluorocarbon (HCFC) which contributes to ozone depletion
R-410A
Often referred to by a brand name like Puron
Has been approved for use in new residential air conditioners
Is a hydro-fluorocarbon (HFC) which does not contribute to ozone depletion
Will become the new standard for U.S. residential air conditioning systems in 2015
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07-04-2016, 04:45 PM #7
Re: Refrigerant 410A
I believe he is asking the correct charging pressure for R410a not retrofitting.
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07-04-2016, 07:05 PM #8
Re: Refrigerant 410A
Hi, ghil
Here is something interesting:
http://www.brighthubengineering.com/...rants-for-r22/
but .... please, check this link too:
http://www.refrigeration-engineer.co...cement-of-R-22
Seems some other refrigerants are better replacement for R22 ....
You can check a lot of other useful things on RE forums .... just need some time ..
Best regards, Josip
It's impossible to make anything foolproof because fools are so ingenious...
Don't ever underestimate the power of stupid people when they are in large groups.
Please, don't teach me how to be stupid....
No job is as important as to jeopardize the safety of you or those that you work with.
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08-04-2016, 09:10 AM #9
Re: Refrigerant 410A
To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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23-07-2016, 12:09 PM #10
Re: Refrigerant 410A
407c can replace r22 with a oil changeout too.
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13-01-2017, 10:18 AM #11
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13-01-2017, 05:18 PM #12
Re: Refrigerant 410A
I use for a few years now R438A in various systems - From water chillers to milk cooling units. works fine. TXV adjustment is required some times. No oil change.
If you work in temp below 0 I would suggest R422D. I use it for cooling units is CO2 tanks at -30°C evaporating temp.