Is the 4iE easier to program than the 3iE?
Yes. The 4iE programming interface is designed to be the easiest to use in the market.
Use the touchscreen to select one or more days you want to program together (weekdays for example) and then just set start and end times for the periods you want the house to be warm, then set individual temperatures for these warm periods.
You can have up to 5 warm periods per day.
You can repeat these steps for the other days if you wish to program them differently.
Any time that is not a ‘warm period’ will use a setback temperature, which can be changed in the program menu.
The default setback temperature is 16°C (61°F).