Honeywell TH9421 Owner's Manual - Page 15

Special features - installation

Page 15 highlights

Special features VisionPRO® IAQ Auto Changeover: When set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Adaptive Intelligent Recovery: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. Compressor Protection: This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage. During the wait time, the message "Wait" is displayed on screen. Flashing message: Reminder to replace filter or UV lamp. After replacement, press RESET to reactivate the alert timer. Southern Away Dehumidification: Your system may be programmed to control humidity while your house is vacant during the humid season. Before you leave the house, press the HOLD button three times to activate this feature. This will control temperature and humidity to help protect your house and possessions while you are away. (If this feature does not work, contact your installer.) 13 69-1815EFS-06

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VisionPRO
®
IAQ
13
69-1815EFS—06
Special features
Auto Changeover:
When set to Auto, the thermostat automatically selects heating or
cooling depending on the indoor temperature.
Adaptive Intelligent Recovery:
This feature allows the thermostat to “learn” how
long the furnace and air conditioner take to reach programmed temperature settings,
so the temperature is reached at the time you set.
Compressor Protection:
This feature forces the compressor to wait a few minutes
before restarting, to prevent equipment damage. During the wait time, the message
“Wait” is displayed on screen.
Flashing message:
Reminder to replace filter or UV lamp. After replacement, press
RESET
to reactivate the alert timer.
Southern Away Dehumidification:
Your system may be programmed to control
humidity while your house is vacant during the humid season. Before you leave the
house, press the
HOLD
button three times to activate this feature. This will control
temperature and humidity to help protect your house and possessions while you are
away. (If this feature does not work, contact your installer.)