The old analogue user control has been replaced with a new improved, digital display model.

The analogue user control with a dial going from red to blue was easy to use however, there was no indication that the system was working and if so, what it was doing.

The new user controls provides basic data as well as now serving as a commissioning tool.

The principle is that the digital display will show house temperature, solar temperature, water tank temperature, and outside temperature. The other main advantage is that the air flow can be adjusted automatically to a lower level when there is not enough solar energy available. There is a choice of this adjustment happening automatically or manually via setting a timer function.