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According to Emmerson's website using the cross reference service, the replacement for that one is ZRD125KCE-TF5-950 . I did a search and was able to find them in stock in the $3k range.

I've not replaced one on these units but I have replaced them on other refrigeration units. You should be able to cross the compressor over to something readily available. What info can you get from the data plate?

No need to get bogged down in theory when you are staring down the barrel of a hurricane. Bring two phases plus a neutral and ground from the generator and connect them as you would any other power source. I recommend looking at the schematic and see which two phases the VR senses from and...

You are on the right track. Its the phase relationship between the legs that accounts for the difference in voltage on the high voltage side. When two 120v phases are exactly opposite (180 degree out of phase) the math is simple meaning they are additive (technically we would use the same math...

Question 1 - Yes you can do that BUT you have to put a 30a overload ahead of anything rated for 30a (wire, connectors, outlets, etc). That means if you want to connect a 30a circuit to your 60a output you need to add a 30a breaker to be safe and compliant. Edit - You'll need to use a 30a 3 phase...

In my opinion people put too much effort into load balancing these sets when they are being used in emergency situations. As an example are you going to run the dryer much during an outrage? Look at the loads you are most likely to use simultaneously and see if you can spread them around the...

Why would you not consider rewiring some of the loads in your panel to make them 3-phase friendly? That could end up being the simpler option.