Refrigerant Retrofit Wizard
Select a source and target refrigerant to see retrofit requirements: oil change, TXV adjustment, drop-in status, and key warnings.
From Refrigerant
To Refrigerant
Retrofit required
R-12 → R-134a
Oil Change Required
Yes
New Oil Type
POE
TXV Adjustment
Required
Filter-Drier Replacement
Required
Elastomer Seal Concerns
Yes, inspect seals
ASHRAE Safety Class
A1
GWP
1,430
Approx. Capacity Change
-15%
Approx. Efficiency Change
-5%
Est. Cost / lb
$4–$7
Application Types
medium temp refrigeration, mobile AC, commercial refrigeration
Key Warnings
- •Significant capacity reduction (~15%), may require TXV resizing
- •Full POE oil flush required, R-134a not miscible with mineral oil
- •Elastomeric seals must be inspected and likely replaced
- •Lower operating pressures than R-12, systems may need TXV recalibration
- •New production R-12 banned; only reclaimed available for service
Max Residual Old Oil
≤ 5%