Dear users,
As i say in my last message, i try to supervise ON/OFF of my heat pump type 927 for production of heat water to store in my tank type 4a.
I want to write équations which control pump On when temperature of tank is lower 65 and OFF when it's upper 65°C
And after i must prcise the time of function which is 2 hours to morning - 2 hours to afternoon et 2 hours to night.
Thanks for your help!
Alain!