Refrigerant charging - Articles

BREAKING NEWS

Rheem, Lennox Boost Pre-Charges Without Raising Prices

Companies say they want to ease disruptions caused by R-454B cylinder shortage

May 22, 2025

“We’re taking practical steps to support our customers during the current R-454B cylinder shortage,” said Lennox Home Comfort Solutions president Sarah Martin.

Trane Temporarily Increases Pre-Charge in R-454B Units

An additional fee per unit will apply to account for increased refrigerant volume

The ACHR NEWS Editorial Staff

May 8, 2025

Trane is temporarily increasing the pre-charge of R-454B refrigerant in split systems due to supply issues with 20-pound cylinders that have limited the availability of the refrigerant to contractors.

DOT Issues Warning on Unsafe Refrigerant Cylinders

HVAC personnel should ensure cylinders are marked correctly before using

The ACHR NEWS Editorial Staff

January 30, 2025

Cylinders must have the correct DOT or United Nations (UN) markings and follow hazardous materials regulations prior to being transported.

Three Tips for Your Next System Evacuation

September 5, 2024

Ensuring a vacuum pump system is evacuated and free of air, nitrogen, moisture, and other contaminants is a crucial step to keep the system running optimally.  

Advice for the First A2L Installation

An HVAC Minute Video Update: June 25, 2024

Hannah Belloli-Oster

June 25, 2024

With the impending deadline right around the corner, manufacturers have started introducing their A2L systems in the U.S.

Expert Advice on Navigating that First A2L Installation

Contractors need to be prepared to install the new R-32 and R-454B systems

Joanna R. Turpin

June 10, 2024

Manufacturers are starting to introduce their A2L systems in the U.S., so contractors and technicians must learn how to service and install this new equipment.

FROSTlines

Charging Refrigeration Systems With Blended Refrigerants

Today’s techs need to understand how to work with newer blends

Justin Bailey

April 5, 2024

Service technicians must understand how to charge refrigeration equipment with the latest refrigerant blends, so that they are able to retrofit existing units or replace failed equipment.