Let's get through all of the jargon and get to the point as quickly as possible. These ratings are a calculation of how much energy you have to put into a system to get a BTU of heating or cooling out. Simple. But the problem is that each piece of cooling or heat pump equipment […]

An important rating on motors is the AMBIENT  temperature rating that the motor can operate at. This rating refers to the temperature of the air around the motor, not the temperature of the motor itself or even the temperature of the outdoor air—since the motor is often in a condenser air stream that is higher […]

Many installers and service technicians know how to read and use a manufacturer fan table, but this is a quick review with a few extra tips for newer techs. It’s also a good reminder to senior technicians about how this easy-to-use practice can also be easily abused. At installation, properly setting up airflow is imperative to the […]