Dampers min is 10% and only going to 40%.

Issue:

Dampers min is 10% and only going to 40%.

Resolution:

Ventilation mode. When enabled this mode allows dampers to open for
greater ventilation. This occurs when the group is occupied and the air
conditioning system is in zero energy state (no stages of heating or cooling
energized) for more than four minutes. When the ventilation mode is active, the
vent flow multiplier is not allowed to drop below 4.0. For example, if the cooling
minimum position is set to 10 percent, the damper goes to 40 percent open
(10%  4.0 = 40%) during the ventilation mode.

See page 21 of the CCP Operator's Guide for details
https://tranesupport.zendesk.com/hc/en-us/articles/11744522945677-VariTrac-III-CCP-literature

Other Question/Problem/Cause Statements:

• Dampers min is 10% and only going to 40%.

Facts:

• VariTrac III Central Control Panel (CCP)

Original wave: wave19886