1) Press & hold to turn unit on
Press to confirm
Press to skip
3) Press & hold to perform a demand zero while in normal operation
at any time
4) Press & hold to turn the unit off
START UP
POWER ON
AUTO FRESH AIR ZERO
Or
If no buttons are pressed within 15 seconds the unit will skip the fresh air zero
2) Normal Operation
DEMAND FRESH AIR ZERO
THIS MUST BE DONE IN A CLEAN AIR ENVIRONMENT
POWER OFF
