Author: Roman Baugh

BACK

Roman Baugh

Company name: Kalos Services (Commercial Heavy HVAC)

Position: Director of Commercial HVAC

Roman Baugh joined the Kalos Team as the Director of Commercial HVAC in 2023 after serving as the technical service manager for Daikin North America. He has extensive variable refrigerant volume/flow (VRV/VRF) system experience and has been on several educational podcasts to share his knowledge of VRV/VRF technology.

No tags found

1 Followers

Events attending:

Tech Tips written:

See all +

Refrigeration Communication Troubleshooting Using Oscilloscopes

This tech tip is the final installment in our short series on using oscilloscopes to troubleshoot communicating systems. Imagine this scenario: you've got a refrigeration system acting up, and the comms network, whether it's LON or MOD-bus, seems a bit flaky. Let me introduce you to oscilloscopes—more specifically, a PC version called the PicoScope 2204A. […]

Preventing Heat Illnesses in the BLAZING Summer Heat

This tech tip about preventing heat illnesses covers information and resources from the Cleveland Clinic, the U.S. Centers for Disease Control and Prevention (CDC), the U.S. Occupational Safety and Health Administration (OSHA), and the National Oceanic and Atmospheric Administration (NOAA). HVAC School is NOT an official OSHA training resource, and although these safety tips are […]

What is RS-485 Communication?

This tech tip about RS-485 communication is the third installment in a four-part series about oscilloscopes. It's a primer for the final installment about using an oscilloscope for diagnosis. I owe a special thanks to Jeremy Smith for sharing the information on Danfoss and for sparking my curiosity surrounding this type of communication. Let's talk […]

Communication is Key

So You Want to Service VRF?

NOTE: If you cannot view the recording, the video may still be processing. The maximum wait time is 24 hours. We apologize for the delay and appreciate your patience.

Compressor Teardown

NOTE: If you cannot view the recording, the video may still be processing. The maximum wait time is 24 hours. We apologize for the delay and appreciate your patience.

Video guest:

See all +

VRV Data Analysis Class Part 2

Brazing Heat Protection with Viper WetRag

Heat Pump Water Heater Troubleshooting Guide

Podcast guest:

See all +

Keys to VRF Maintenance w/ Roman

In this episode of the HVAC School podcast, Bryan Orr sits down with Roman Baugh, a leading VRF (Variable Refrigerant Flow) specialist and co-host of the VRF Tech Talk podcast, for an in-depth exploration of VRF system maintenance. The conversation begins with some lighthearted back-and-forth before shifting to the technical realities of maintaining VRF […]

Why VRF Compressors Die w/ Roman

In this episode, Bryan and Roman dive deep into the world of Variable Refrigerant Flow (VRF) systems, focusing on the persistent issue of compressor failures. VRF technology has evolved, and it has seen a major rise in the North American market since the early 2010s. Roman shares his passion for VRF, tracing its origins […]

Roman SpeakPipe VRF – Short #235

In this short podcast episode, Roman Baugh takes over the HVAC School podcast to answer a listener-submitted question about VRF (or VRV) system evacuation. Evacuation is a critical step of making repairs on VRF systems, which are very diverse and versatile but require a high level of understanding. VRF systems have multiple indoor units […]

Troubleshooting Inverter Boards

Let's talk about the magic that is inverters and how to test the boards that drive this technology. Inverters play an extremely important role in household appliances, industrial machinery, and the rising popularity of household HVAC systems. Inverters consist of a wide variety of electronic circuitry, and there are many situations in which they need […]

Pull The Condenser Top

The photo above is from a video one of my techs took of proper condenser cleaning. I must say, he did a GREAT job of cleaning the coil, and he was very careful with the top. However, I STILL would have liked to see him pull the condenser top completely during a full maintenance procedure. […]

False Alarms: The Legacy of Phosgene Gas

We’ve all been in the unenviable position of unsweating a compressor and getting blasted in the eyes with a waft of gas that smells like burning sulfur from the pits of Hades. As we stagger back, covering our noses and holding our breaths, memories of the phrase “phosphene gas” from trade school or World War […]

Purge Your Hoses

The title says it all. It should be one of the first things you learn when you started. However, I have seen a lot of experienced techs who seldom (if ever) do it. When connecting to a tank, purge your hose by cracking the center connection at the manifold for a second. When connecting to […]