Let's unravel HVACR complexities with Tim R. Skell!
Our expert, Tim R. Skell, spent almost 4 years sharing his expertise in the #FunFactFriday series on LinkedIn. Now, we are giving him a forum to exchange news, knowledge, and passion for HVACR technologies in the new ABB column.
Join the discussion with Tim R. Skell on LinkedIn to read other fun facts and share ideas!
Did you know you can tell the frame size of an HVACR ACH580 drive by looking at the number of bars molded into the front cover? The pic below shows two bars (see red arrows); thus, it is a Frame 2 size drive.
For those unfamiliar with frame sizes, this Fun Fact Friday explains what a frame size means in variable speed drives lingo. Drives of different power (kW or HP) sizes often have the same dimensions.
For example, on the ABB 400 VAC ACH580, units ranging from 0.75 to 5.5 kW are all the same size. Then, the 7.5 and 11 kW also share the same dimensions. Moving up, 15, 18.5, and 22 kW are the same size as well. This means the 0.75-5.5 kW range corresponds to Frame Size 1, the 7.5-11 kW Frame Size 2, and the 15-22 kW to Frame Size 3.
The concept of frame sizes is not unique to ABB or VSDs; it applies to other manufacturers and many other product types, such as breakers, contactors, or motors.
