HVAC Refrigerant Log

Refrigerant guides

Start with the recordkeeping and leak repair guides if you service larger appliances, and the A2L and transition guides if you are moving to R-454B or R-32. Each guide points to the regulation or manufacturer source it uses and to the free tool that fits the task.

Records and leak repair

If you are asking where to start, use the recordkeeping and leak repair guides first. They help you line up the source material, understand what to save, and move from a rule question to the right workflow in recordkeeping and leak repair.

Refrigerant transition

If you are asking what is changing, use the transition guides next. They focus on the move to newer refrigerants and the handling details that come with that shift, including A2L handling and R-410A to R-454B transition.

Tools

The free tools are grouped with the guides so you can go from reading to doing in one place. If you want the app that will hold reminders and records, you can join the waitlist, and if you want the main hub, start at HVAC Refrigerant Log for the full set of guides.

Reference only. Verify with manufacturer data and gauges. Follow the manufacturer chart and EPA rules. This site is not an approval from EPA.