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Spill mode uses the zones with the lowest addresses in the system as spill
zones that will be automatically forced to open if the total number of open
zones is less than its setpoint.
In bypass mode, a bypass damper is used to return the air directly to the
duct if the total number of open zones is less than its setpoint. The bypass
damper is also serially connected with other dampers and has a special
address as mentioned before.
1) At the setting mode, press button until
the LCD displays the
‘Spill’
or
‘Bypass’
screen.
2) Press button to select spill or bypass mode.
3) Press and button to change the
spill/bypass setpoint to its desired value. The
adjustable range is from 0% to 50%.
If no spill or bypass control is required in the
system, the setpoint MUST be set to 0.