Fresh Air Ventilation - Carrier Infinity Control Homeowner's Manual

Fresh Air Ventilation
A fresh air ventilator is used to exchange stale indoor air for fresh
outdoor air. Fresh air ventilation can be customized with up to four
settings. The setting you choose for heating operation can be differ-
ent from the setting you choose for cooling. The indoor fan will
operate while the ventilator operates.
HIGH: The fresh air ventilator will operate at high. This setting is
recommended to help quickly remove unwanted odors.
LOW: The fresh air ventilator will operate at low continuously. This
setting is recommended for continuous operation in mild climates
with low humidity.
AUTO: The system will automatically vary the fresh air ventilator
speed to accommodate outdoor seasonal conditions and desired
indoor humidity and temperature settings. This setting is recom-
mended for cold, northern climates.
DEHUM: The system will operate the fresh air ventilator only if dehu-
midification is necessary. This setting is only available in heating.
Refer to the BASIC SETUP section of this manual to select your
fresh air setting. Please note that a fresh air setting will only appear
if a ventilator has been installed.