Let’s look at how the density of refrigerant entering the compressor’s cylinders affects the mass flow rate of refrigerant through the compressor.

When working on a refrigeration system, technicians may occasionally come across one where the type of refrigerant is unknown.

Refrigerant recovery machines are one of the most expensive tools that contractors own, so it’s important to make the right purchase decision.

Coil cleaning. Glamorous? Hardly. Worth it for system performance? Absolutely.

Just because buildings are closed does not mean that routine maintenance on HVAC equipment should be put off.

While not often addressed, the air handler in an HVAC system has a significant role to play.

Let’s look at some helpful “static” pressure tests you can use on the building side of the duct system to diagnose common problems.

More HVAC contractors should consider adding air sealing to their menu of offerings.

The article provided valuable information on maintenance and cleanliness issues related to refrigeration equipment in restaurants and c-stores.