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If the VRF is a heat pump type, then the outdoor unit will completely switch between heating and cooling depending on the dominant requests from the zone units. If one corridor needs heating while all the other zones need cooling, then the corridor doesn't get what it wants and this is the sort of behavior that happens. This is as intended for VRF systems unless they are heat recovery units.

A larger reporting tolerance will help suppress those hours that are just a little unmet and they are going to be more common with VRF.