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Minisplit – two rooms calling for heat and cooling?

Michael D | Posted in General Questions on

I am about to have a 4 head Mitsubishi mini split system installed, but am concerned that the main floor might be calling for heating and the upstairs calling for Cooling.

I know both can’t happen at the same time but no one can clearly tell me what happens if I have both heads set to AUTO, and one is calling for heat and the other is cooling, what happens?

To get two separate systems, its an additional $2500.

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