Using Power Curtailment Terminals on a Carrier Heat Pump to Shed Heatpump
I'm with Billy, I see no problem.  Here are my concerns: You are not really needing to break R from Y2. You are breaking Y2 from Y2.  The red will stay where it is to power all other features.  And why is the heat pump second stage? Unless the reversing valve is stage one.  And what is the back-up heat? If it is electric resistance, that will require a whole lot more power then the heat pump.  That would be where you would want to shed load.  With 22-KW of generator, what is the tonage of the heat pump.  22-KW can start a lot of heat pump.