Welcome To The ACCA HVAC Blog!

The Supreme Court is hearing oral arguments regarding President Biden’s OSHA vaccine mandate for employers with 100+ employees.

Do you look forward to checking a heat pump’s performance in the winter? Do you have a routine that you rely on? We are going to walk you through a process that gives a good indication of whether the system is doing what it is supposed to be doing, or not. The best part is you don’t have to buy any special tools and the process is easy, it just requires some simple math.

Those who have been in the HVAC business for an extended period know systems with thermocouples and standing pilots are becoming a thing of the past. However, many appliances in the field still utilize a standing pilot, and a good service technician should know how to diagnose thermocouple issues correctly.

Typically, a home energy rater will conduct duct leakage tests and leakage tests on the home’s building envelope in accordance with energy codes. ACCA has proposed adding a code exception to conduct an airflow balancing procedure instead, thus giving contractors an opportunity to provide a more valuable service. 

It is vital for service technicians to have a solid understanding of how a heat pump works. One critical component of a heat pump system is the defrost control board. This blog article by ACCA’s Matt Akins will take you through the essential operation of a defrost control board and some basic troubleshooting.

The U.S. Court of Appeals for the Sixth Circuit lifted the stay of OSHA’s vaccination, testing, and face covering emergency temporary standard (ETS), meaning that it is set to go into effect.