Hi guys,
I've been asked to come up with a modification for a 2-door reach-in refrigerator and for a freezer, also a 2-door. They want to run these in an unheated shed and in winter, below freezing conditions. I recall beverage machines having cold weather kits but can't find the needed info.

These are both self contained bottom mounted condensing units with electric condensate pan.

Originally we were asked only to come up with retrofit for the drain but I suspect they will ask us for further help.

We intend to modify the drain line, changing vinyl tubing to copper w/trap and add drain heaters.

My question is what else will I need to prepare for? Cause, effect & solution.

Thanks for reading. Double thanks for your thoughts. Ken