I am planning to upgrade to a Pentair VS pump (most likely SuperFlo). I want to ensure that my booster pump or heater are not on when the pump is turned off. I would like some extra safety over the heater's pressure switch.
Currently, I have a T104 Intermatic mechanical timer with a fireman's switch hooked up to the heater. My booster pump is wired so that if there is no power going to the main pump, then the booster pump won't turn on.
Questions I have:
1) What sort of flow rate does my 266k Btu Rheem Digital heater require? Is this higher than I'd normally want to operate my pump (i.e. do I want to automate the pump to run at a higher flow rate when the heater is on?)
2) How important is it for my heater to shutoff ~10 minutes prior to my pump?
3) What method would you recommend to safeguard the booster pump and heater (automation system, relays, keep current set-up with mechanical timer)?
4) Are there some low cost automation systems that will work with the Pentair SuperFlo VS?