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Honeywell Home TH2110WF4008 Series Smart Thermostat User Manual
Auto Changeover
When a thermostat is set to Auto Changeover, the thermostat has a Heat setpoint and a Cool setpoint and can
run either Heat or Cool as needed.
1
Verify the thermostat is set to Auto Changeover mode. Press the MODE button in the upper left until AUTO is
selected. Press the SAVE button (Center left).
2
Press the or button. Upper right shows HEAT TO or COOL TO in flashing text, and the setpoint. Use the
or button to adjust the setpoint. If the display shows HEAT TO flashing when you want to adjust the Cool
setpoint, or vice versa, press the System button. While HEAT TO or COOL TO is flashing, the mode indication
at upper left shows either HEAT or COOL flashing. Pressing the MODE button at this time changes the
setpoint being adjusted from HEAT to COOL or vice-versa.
Heat and cool set to the same temperature
Most people are comfortable in a 2–3-degree temperature range. Therefore, the heat is usually set a few degrees
below the Cool setpoint. When the indoor temperature is between the Heat and Cool setpoints, the system is off.
The Heat and Cool setpoints can be the same. To ensure that the system doesn’t cycle back and forth between
Heating and Cooling, the thermostat observes a differential setting, set by the installer. If the thermostat last ran
in Heat mode, it cycles heat on and off to maintain the setpoint. The indoor temperature must rise to the
differential setting before it switches to Cool.
Then cooling will run down to the Cool setpoint and cycle cooling on and off to maintain as needed. The
thermostat would then need to drop to the differential setting before switching back to Heat. Typically, a
thermostat using Auto Changeover would only need to switch over twice per day as outdoor temperature rises
during the day and drops in the evening.
5
Alerts
MODE
Indoor
Heat
When an alert is active, an
part of the display.
icon will appear in the lower
MENU
Hold
FAN
Auto
1
Press MENU and use or until the alert is shown.
Active alerts will be the first menu items shown.
2
3
Press SELECT to display the alert number.
MCR39587
An alert cannot be dismissed. If there is more than one
active alert, pressing the NEXT button allows you to view
any additional alert numbers. Press EXIT to return to the
home screen.
Some alerts can be resolved by the homeowner. Other alerts
may require a service call to the professional installer.
Alert Number
164
Alert Meaning
Heat Pump Fault. Heat pump is energizing the L terminal to indicate a fault.
Thermostat Memory Failure. Internal problem with the thermostat memory.
170
Set Time and Date. To clear this alert, enter the Menu, and follow steps listed earlier in
this manual to set the time and date.
171
173
178
388
399
400
602
607
Internal Sensor Error. Issue with the built-in temperature sensor.
Wired Outdoor Sensor Error. Check wires and connections to outdoor sensor
Register online
Wi-Fi Internet Connection Lost *
Wi-Fi no Signal *
Internal humidity sensor error
Wi-Fi network error *
* Wi-Fi alerts will not be displayed when Wi-Fi is set to off under the Wi-Fi menu.
Reminders
When a replace filter reminder is active, a
appear in the lower part of the display.
icon will
1
Press MENU and use or until the active
reminder is shown. Active alerts and reminders will
be the first menu items shown.
Hold
2
3
Press SELECT to display the reminder.
Once selected you will see the reminder message
in scrolling text. Press DISMISS to reset the
reminder or press EXIT to return to the home
screen without resetting the reminder.
MCR39515
If there is more than one active reminder, press the
NEXT button to view all reminders which have not
been reset.
6
| General | Details |
|---|---|
| Name | Honeywell Home TH2110WF4008 Series Smart Thermostat User Manual |
| Make | Honeywell Home |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.3 MB |
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