#CO

Tech Tips:

What Does “Air Free CO” (Carbon Monoxide) Mean?

Almost everyone knows that CO (carbon monoxide) is really nasty stuff and nothing to play around with. Humans will often begin exhibiting symptoms of CO poisoning at 200 ppm (parts per million) of CO in a space. Studies have also shown that the effects of CO exposure can accumulate over time, resulting in health […]

10 Things I’ve Learned In the Last 10 Years

This podcast episode is of Bryan's session from the HVAC School Symposium, “10 Things I've Learned in the Last 10 Years.” Delivered as HVAC School approaches its 10-year milestone and Kalos hits 20 years, Bryan blends technical know-how with personal stories, revealing how his “expertise” is a product of constant learning—often from the very […]

UEI at AHR: Carbon Monoxide Safety and Combustion Analysis

In this informative podcast episode, Bryan from HVAC School is joined by Louise Keller, the National Training Manager for UEI Test Instruments, to discuss the critical importance of carbon monoxide safety and proper combustion analysis. The conversation begins with lighthearted banter about the previous night's Tactical Awards ceremony before diving into the serious topic […]

10 Things I’ve Learned in the Last 10 Years

How to Evacuate an AC system, Full Vacuum Procedure

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In this short podcast episode, Bryan answers a listener-submitted question asking whether you can use another surge protector at the disconnect panel with an ICM 493 already in place.

Using multiple surge protectors in the configuration described does NOT count as daisy-chaining. Surge protectors with MOVs (metal oxide varistors) shunt current from high voltage to ground by reducing their resistance. MOVs are sacrificial, so they wear out over time. Surge protectors don’t last forever, so installing multiple is a fine idea.

You can have whole-home surge protection with additional surge protectors positioned at the appliances/electronics. While it can be done and doesn’t hurt anything, it’s not the most cost-effective solution.

When you install a surge protector, wire it in parallel with the circuit to ground. It should be wired properly with the shortest possible path to ground. In any case, many surge protectors won’t hold up against direct lightning strikes, but they will protect the equipment from power surges after power comes back on or constant overvoltage.

Our company, Kalos Services, now uses DITEK’s Kool Guard 2 as our surge protector and voltage monitor of choice. They also provide warranties for their products, which have come in handy for customers.

Learn more about the DITEK Kool Guard 2 at https://www.diteksurgeprotection.com/product-series/intelligent-voltage-monitoring/.

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