Diversity is key in this industry, the more you know the more you are worth to employers
I could not agree more. Since I started with my current situation I am working on mostly high pressure chillers. I get a roof top or controls call every once in a blue moon. I feel like I am loosing my diverseness. When I left my old employer I had guys ask what they should learn to better themselves. I recommended VFDs and controls. Seems like everything these days weather a fan, compressor, or Fan powered box is being outfitted with Vfds and BAS systems.