Apr 2018
Preventing Leaks in Ductless Mini-Split Systems
Installation, service contractor errors on linesets avoidable with right tools, techniques.
Read More

Apr 2018
MSAC Hotline: Hot Surface Igniter
I have a furnace with a hot surface igniter that will not ignite. One thing led to another and we ended up changing the pressure switch and inducer motor. When the unit comes on it starts the blower wheel, then goes to the inducer. But when the inducer starts, nothing else happens. The surface igniter doesn’t glow either. I don’t know what else to do.
Read More

Apr 2018
Smart Tools: Lineset Kinks are History
New mandrels make mini split lineset bends a breeze, even in tight spaces.
Read More

Apr 2018
Leading Off: Rescued by Pressure-Enthalpy
As the push, via incentives, for air-source heat pumps and geothermal for colder climates, especially north of the 49th parallel, increases, we need to look at some of the developments that are giving heat pumps the ability to provide increased heating capacities with higher coefficient of performance (COP) values under low ambient temperatures.
Read More

Apr 2018
Heating Up: Remember San Antonio, or Here Comes the Future
Irecently went to Texas and saw the future of both RSES and the entire HVACR industry. The Southwestern Regional Association (SWRA) of RSES’ 68th Annual Educational Conference and Business Meeting was in San Antonio, home of the Alamo. But unlike the iconic Alamo, which didn’t have the greatest ending, the conference was a huge success.
Read More

Apr 2018
HVACR Insights: Why I Don't Do Side Jobs
HVACR instructor follows-up on last month’s column about side jobs to explain his view on the controversial topic.
Read More

Apr 2018
Double Feature: Regulations
The following double feature focuses on regulations related to the U.S. Department of Energy’s Fan Energy Ratings (FER) and upcoming refrigerant rules. The FER regulation feature discusses the potential for regulatory compliance to actually drive technical innovations in the HVACR industry. The refrigerants feature provides a global perspective on a handful of worldwide refrigerant regulations and how they are impacting the industry.
Read More

Apr 2018
Double Feature: Retrofits
RSES Journal’s first-ever Double Feature issue includes two double features. The following double feature centers on commercial and school retrofits. The school retrofit feature examines the use of unit ventilators with VRF and ERV technology. The commercial retrofit feature shows how VFDs and efficient pump combinations are used to reduce electrical demand.
Read More

Apr 2018
Troubleshooting: Follow-up On a Walk-in Cooler Repair
Email your real-life troubleshooting problem—along with the ultimate solution you found—to jim@techtrainassoc.com. Be sure to include as much supporting documentation as possible— wiring diagrams, model/serial numbers, etc. If your problem is published, you will be rewarded with a free heat-pump training video, “Uncomplicating the Heat Pump: Refrigeration and Air Flow Systems.”
Read More

Mar 2018
Filter Specification: Five Ways You're Doing it Wrong
HVACR pros need to look at these five surprising areas when selecting air filters or risk future equipment problems.
Read More