Honeywell T9 User Manual

4
Removing your old thermostat
You will need: Screwdriver, needle-nose pliers
OFF
ON
75
1
2
3
Turn off power
To protect your equipment, turn off
the power at the breaker box or switch
that controls you heating and cooling
equipment.
Note: The thermostat off switch
will not turn off the power to the
equipment.
Check that your system is off
Change the temperature on your old
thermostat so that your system starts
heating or cooling.
If you don’t hear or feel the system turn
on within 5 minutes, the power is off.
Note: If you have a digital thermostat that
has a blank display, skip this step.
Remove your existing thermostat from
the wall plate
On most thermostats, you can take off
the thermostat by grasping and gently
pulling. Some thermostats may have
screws, buttons, or clasps.
Do not remove any wires from your
thermostat at this time!
OR
OFF
Breaker box
Switch

Honeywell T9 Specifications

General

Model	T9
Brand	Honeywell
Type	Smart Thermostat
Connectivity	Wi-Fi
Display	Touchscreen
Sensors	Temperature, Humidity, Proximity
Energy Saving	ENERGY STAR certified
App Control	Honeywell Home App
Warranty	3-year limited warranty
Compatibility	Amazon Alexa, Google Assistant
Features	Geofencing, Smart Alerts
Zones Supported	Multiple zones with additional sensors
Power Source	C-Wire (Required), Battery Backup
Compatibility with HVAC systems	Most 24V heating and cooling systems: forced air, heat pump, gas, electric