Honeywell Home T4 Pro User Manual

Fan operation settings
1. Press the Fan button to cycle to the
next available Fan mode.
2. Cycle through the modes until the required Fan mode is displayed and leave it to activate.
NOTE: Available Fan modes vary with system settings.
Fan modes:
‒ Auto: Fan runs only when the heating or cooling system is on.
‒ On Fan is always on.
Set the time and date
Time

Honeywell Home T4 Pro Specifications

General

Model	T4 Pro
Programmable	Yes
Stages	1 Heat/1 Cool
Compatibility	Conventional and Heat Pump systems
Operating Modes	Heat, Cool, Off
Fan Modes	Auto, On
Temperature Range (Heat)	40°F to 90°F
Temperature Range (Cool)	50°F to 99°F
Wi-Fi Capable	No
Display	Digital
Power Source	Battery or Hardwired
Programmability	7-day
Terminal Designations	R, C, W, Y, G, O/B
Power	24VAC
Warranty	5-year limited
Temperature Range	40°F to 99°F