Minisplit Condenser and Freezing Temperatures
I have a Mitsubishi outdoor unit mounted outside that will be used for basement cooling/heating. The project is running longer than expected (surprise, surprise!) and the mini-split probably won’t be connected and provisioned until late November, so we’ll most certainly have some nights dropping below freezing before then. Is it an issue for the unit to drop below freezing when it’s still in a factory charged, not hooked up/running state? Assuming the unit has R-410A refrigerant, poking around the WWW, it seems the freezing point is ‘not determined’, but if the boiling point is -54 F, the freezing point must be much lower, so hopefully I’m worrying about a non-issue. Also, are there any special considerations when provisioning a mini-split in cold weather?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part