Carrier Infinity SYSTXCCWIC01-B Installation Instructions Manual page 42

If Simultaneous Heat/Cool is turned OFF, Auto changeover time: Adjustable
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from 5 to 120 minutes
Default = 30 minutes
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NOTE: AUTO mode is intended to switch between Heating and Cooling modes
based on temperature demand. A gradual auto transition is the energy- - conscious
default that will satisfy the majority of customers. Some customers might have
significant and simultaneous heating and cooling demands in different zones. To
address this need, a special simultaneous heating and cooling demand auto mode
could be enabled by the Installer. The simultaneous heating and cooling demand
auto mode will result in higher energy usage but benefit the customer with greater
comfort.
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