Upon arrival, I tested the unit 3 different times. I replicated the noise 2 of the 3 times. I tested the components to ensure they were good. This is a variable speed unit and the compressor steps up and down according to demand. The noise is related to when the unit shuts off and the compressor stepping down out of the high stages instantly. The amount of noise varies between units. System is operating and heating normally. We will reach out to tech-support on Monday.
