R22 has an 1,810, (GWP) rating, which measures how much heat a greenhouse gas is trapped within the atmosphere versus the amount of heat that's trapped by carbon dioxide (CO2). In this instance, R22 has almost 2,000 times the strength of CO2, meaning a full pound of R22 is nearly equivalent to a ton of CO2. Phasing Out R22 Refrigerant

Feb 7, 2021 · My main concern is the POE and MO currently used in various R22 systems. 407C and A are good for POE where MO99 is good for MO. Most of my walk ins are mineral oil according to the manufacturer so MO99 would be a logical choice. I did some calculations yesterday with an enthalpy chart for both R22 and MO99.

Jan 1, 2020 · R22 and R142b refrigerants can't be produced or imported except for equipment manufactured before Jan. 1, 2010: 2010: Remaining HCFC refrigerants can't be produced or imported except for equipment manufactured before Jan. 1, 2020: 2015: R134a, R404a and R507a can't be used on medium temp retail refrigeration units less than 2,200 BTU/hour: 2019

Even the same lubricants – mineral oil, alkylbenzene, polyolester, and polyvinylether – can be used. There are some differences, however. When replacing an R-22 system with R-422B, only charge the system to 95 percent of the R22 level. The refrigerant charge may need to be adjusted to deliver its best performance.

R134A is a haloalkane refrigerant known for its thermodynamic properties. It is not blended like most R22 alternatives – it is a single component, and working with it will not require different recovery machines. The refrigerant is a great alternative to retrofit R12 air conditioning systems found in motor vehicles.

U.S. Refrigerant Phase Out Chart & Info

2 R12 to R134a Refrigerant Charge Conversion Charts – techtownforum.com R12 to R134a Refrigerant Charge Conversion (Ounces) – Pt. 1

Sep 15, 2017 · That is a Copeland condenser built for R404 or R22. Low temp at R404 or medium temp R22. So you must have a freezer with a 1 HP condenser.The replacement will not be the same number, but it will be the same BTU’s. What is the compressor number? The refrigerant charge type and amount?

A walk-in fridge or reach-in fridge with R22 has a desired box temp is 38*F. What is 38*F on a P/T Chart? Around 63 PSI. But we don’t want 38*F, we want 28*F. So what’s 28*F? Around 49-50 PSI. So the suction side should be around 50 PSI. High side, well it’s Florida, design temperature would be 95*F based on what I said earlier.

Retrofitting a unit from R12 to R134a refrigerant requires you to adjust the charge level. Check out our R12 to R134a conversion chart in pounds and ounces.