R-407C

HFC blend

Under annual quota

GWP: 1,774
ODP: 0
Class: A1
Family: HFC
Boiling: -43.6 °C

Composition: blend: R-32 / R-125 / R-134a

Introduced as a transitional replacement for R-22 in existing equipment. It has a pronounced temperature glide, so charging requires care and must always be done in the liquid phase.

What this means for you

This refrigerant is subject to an annual import quota that shrinks on a set schedule. Equipment may continue to operate, but topping it up will become more expensive over the years.

Was used as a replacement for R-22.

Handling

Class A1. Low toxicity, non-flammable. The widest application, without special restrictions.

What replaces it

R-32

difluoromethane

GWP 675 · A2L

GWP lower by 62%

Split air conditioners

Replacement must be carried out by a licensed technician. Class A2L and A3 refrigerants are flammable and require specific installation conditions.

Where to go next

What the law requires Find a licensed technician

Data source: Manual §1.3.2, §2.5.1, §2.5.2