I want to connect a local (type 56a) to two systems :cooling and other heating .
I want each of them works on his part under two setpoint temperature at the
interior of a local one minimum and another maximum (ambient temperature)
eat what to say when the local temperature is lowered to the minimum temperature
the heating system works and vice versa when the temperature is higher to the maximum temperature
in the cooling system work and the other system stops. how I can both controller system according
I have the idea to use controller (type 2b) but I hesitated because I think we should add
an equation (insert equation)