I plan on using an AC fridge and AC water heater with a Victron 3000 multiplus. I was wondering if anyone has used a DC powered PID/temp controller with an AC relay in order to prevent the invertor from being on 24/7? I have a three ideas
- Temp controller for both on separate relays. This seems the "easy" way but the water heater might cycle for 20 min then the fridge might cycle after.
- Temp controller for both, single relay that turns both on when needed.
- Timed controller that allows X (e.g. 15 min) on every hour. I'd have to really monitor this to make sure the fridge can maintain temperature.