This tech tip is based on an HVAC School podcast episode with Jeff Kukert and Tom Fesenmyer from Copeland. Jeff is the senior technical trainer, and Tom is the manager of technical services. You can listen to the original podcast HERE, and you can explore Copeland’s vast selection of compressors and resources for low-GWP refrigeration […]

This tech tip was written with the guidance of Nikki Krueger, the Director of Marketing & Business Development at Santa Fe Dehumidifiers. Nikki has been a longtime contributor to HVAC School as a recurring podcast guest and presenter at the HVACR Training Symposium. Most of the illustrations and instructions came from Santa Fe's Ultra V […]

Each commercial rooftop unit (RTU) needs to be mounted to a curb. A curb supports the RTU and provides openings for the supply and return ductwork (which can be massive compared to what we see in residential and light commercial HVAC). Occasionally, we’ll need to do an RTU changeout and put in a bigger or […]

Dick Wirz, author of Commercial Refrigeration for Air Conditioning Technicians, talks about making the switch from A/C to refrigeration. Dick Wirz is an advocate for using rules of thumb, which is a controversial position. However, rules of thumb are an excellent way for A/C techs to dip their toes into the refrigeration world. Rules of […]