Articles Tagged with ''FROSTlines''

If a potential relay is malfunctioning, the compressor motor is in danger of not starting, stalling, locking rotor, or even burning out. That is why technicians should understand how to troubleshoot potential relays.

Technicians should understand how heat transfer works in a refrigeration system, as well as the four laws that describe how temperature and pressure changes affect the state of refrigerant in a sealed piping system.

Conducting planned maintenance on refrigeration equipment is beneficial to both equipment owners and contractors. However, simple tasks can turn into problems if not done properly or without taking the necessary precautions.

The HVACR industry will soon be using low-GWP refrigerant blends, some of which have a temperature glide when evaporating and condensing. As these refrigerant blends change phase, there’s a change in their composition, which technicians must be able to calculate while in the field.

In an informative session at the NASRC’s Sustainable Refrigeration Summit, Publix and Coborn’s shared the pros and cons of incorporating CO₂ refrigeration systems into their stores.

Repairing refrigeration systems can be challenging, especially when a system has multiple problems. Technicians should have patience during the troubleshooting process, as it is easy to rush to an early conclusion.

In addition to using proper tools and test instruments, technicians should use a checklist to help them troubleshoot refrigeration and air conditioning systems in the field.

Understanding what the terms superheat, subcooling, and saturation mean can be helpful when troubleshooting an air conditioning or refrigeration system.

At the FMI ES&D Conference, attendees learned about everything from new refrigeration technology to changing store formats to regulations that are requiring the phasedown of HFC refrigerants.

The ICC and IAPMO are in the process of updating their 2024 mechanical codes to include the use of A2L refrigerants in comfort cooling equipment, and contractors should become familiar with these new provisions.