Condensation From a High Efficiency Furnace
High efficiency furnaces, also known as 90% furnaces or condensing furnaces, use two heat exchangers to remove more heat from…
Tag: Misc
Evaporator Coil Corrosion: Why Do Some Corrode Faster Than Others?
Indoor coil corrosion followed by leak failure has been an issue in the HVAC industry for a long time. Although…
48GC Package Unit & System Sensor Smoke Detector D4120 Setup
Smoke detectors can be used in many different residential and commercial applications. They can be utilized using the smoke shutdown…
Vacuum Pump Performance
Most technicians are aware of the importance of changing the oil in your vacuum pump regularly. However, if you aren’t,…
Toshiba/Carrier U-Series Installation and Troubleshooting: L11 and E17 Error Codes
Installation of a heat recovery VRF system allows multi-zone heating and cooling. A heat recovery system allows you to heat…
The Magic Is In The Change
What is superheat? What is sub-cooling? In this article we will review what refrigeration is, how it works, and some…
Why Do Systems Freeze in Cooling Mode?
When troubleshooting any issue, it is always best to start with the most probable cause and work your way to…
Indoor & Outdoor Coil Cleaner
It’s that time again! Summertime is around the corner. Let’s get this ball rolling by checking out this coil cleaner…
Carrier/Bryant Service Tech App – Part 2
Last Month I demonstrated the Installation and basic usage of the app which included how to look up Literature scanning…
Voltage Drop on Contact Points
Most technicians know about checking capacitors under a load while a motor is running, but did you know that you…