- Oct 23, 2021
- 83
- Pool Size
- 26000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I think I know the answer to my question based on fragments of responses to other questions, but I don't see a definitive thread. I've checked the wiki article on Pentair UltraTemp Heat Pumps and it's a little out of date, but it's generally correct. In the most recent Intellicenter firmware (1.064, 2.006) the options are OFF, Heater, UltraTemp Preferred, UltraTemp Only. I believe the UltraTemp Preferred setting is what the article refers to. If this is selected, it runs the UltraTemp until some point. Does anyone know what that point is? I think it's air temperature related. I had this setting selected last night, temps dropped into the low 50s and this morning the gas heater was on. Do we know if there has been any change in behavior relating to switching back to the heat pump?