Following on from my earlier Introduction, here we go with my first query.
For background pool runs 12 hrs per day 365 days a year, the 12 hrs from end of September to end of April because the pool is heated thru the winter months, 12 hrs for the rest of the year because It's a vacation rental and apparently the guests like to see the water features running and pool water moving. Pool and Spa share the same pump.
Current single speed 1.5 Hp pump motor bearings are getting noisy and because of the pool run times running costs are huge. So looking to install a Pentair Variable speed, probably the 011018, I like the way it's built and it gets pretty good reviews, although being an Engineer the fluid dynamics of the XF pump head are impressive/ tempting, although both will be an overkill for my pool in potential full capacity, but should save a considerable amount running on a slower speed, although I will be surprised if anything like the online calculators would have you believe.
Now the problem, I have an analogue Intermatic controller/timer that runs the pump, Hayward NG heater, Spa change over valves etc ( Spa is on a mechanical timer). I first thought I could use the Pentair Intellicomm II and just connect via a relay from the Intermatic direct to the pump converting the analogue signal to digital and selecting one of the higher pump speed settings for the Spa mode, but after reading the on line manuals I'm now not sure it will, any thoughts or anyone done a similar install? or any other simple way around this?
Because the house is a vacation rental I want the controls simple, don't want the guests adjusting any settings.
All thoughts and other options welcome.