This is the instruction to change the setting on your MK1 (Honeywell) Ventis Controller.
- Press the bottom button (Override) to wake up the controller.
- Press the down button (arrow down) this will display SP (set-point) change that to 18 (18 degrees or desired temperature)
- Press the bottom button again (Override) to change to the next screen (CIRC - 1 is normal, 2 is increased circulation, 3 is condensation mode)
- Press the bottom button again (Override) to get the the Heating Cooling mode. You can have HC in spring but in Summer you would want to change it to C (cooling) only
With the MK1 Controller if you don't press the next button with in 5 sec it will go back to the main menu and to sleep.
Should you have further queries please reply to this email and let us know how we may assist you further.