Heat Pump And Backup Heat Operation; Batteries - Honeywell Home T10 Pro RedLINK Manual

T10 PRO SMART THERMOSTAT WITH REDLINK

HEAT PUMP AND BACKUP HEAT OPERATION

Heat pump with outdoor temperature lockouts
Outdoor temperature lockouts are optional. See Installer Setup options (ISU 312).
Battery Replacement (indoor sensor)
The T10 thermostat does not use any batteries. It is
powered by 24 volts from the HVAC transformer using the
C (common) wire.
Battery level indicators
• Good: Status light flashes green for 5 seconds.
• Low: Status light flashes red for 5 seconds. Use fresh

batteries.

Battery level indicators (during use)
• Good: Status light remains off.
• Low: Battery power will be depleted in about 2 months.
Thermostat displays Low Battery warning. Status light
remains off.
• Critical: Battery power will be depleted in about 2–3
weeks. Status light flashes red.
Batteries
Replace batteries in your indoor sensor when a warning
appears on the thermostat screen, about 60 days before
batteries are depleted.
33-00462—01
Fig. 49.
When the sensor status light begins flashing red, battery
power is critically low and will be depleted within 2–3
weeks. During normal operation, the status light remains
off.
To replace the batteries:
1. Remove the sensor from wallplate.
2. Install 2 fresh AAA alkaline batteries. If the status
light flashes green, batteries are good; if it flashes
red, you must use fresh batteries.
3. Attach sensor to wallplate.
The sensor will restore communication with the
thermostat a few seconds after new batteries are installed.
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