Package Includes:
•  T6 Pro Thermostat
•  UWP™ Mounting System
•  Honeywell Standard Installation  
Adapter (J-box adapter) 
•  Honeywell Decorative Cover Plate – 
Small; size 449/64 in x 449/64 in x 
11/32 in (121 mm x 121 mm x 9 mm)
•  Screws and anchors
•  2 AA Batteries
•  Installation Instructions and User  
Guide
T6 Pro
Programmable Thermostat
Installation Instructions
Optional Cover Plate installation
NOTE: If Optional Cover Plate is not 
required, see “UWP Mounting System 
installation” on next page.
Use the Optional Cover Plate when: 
•  Mounting the thermostat to an 
electrical junction box
•  Or when you need to cover paint gap 
from old thermostat.
1.  Separate the Junction Box Adapter 
from the Cover Plate. See Figure 1.
2.  Mount the Junction Box Adapter to 
the wall or an electrical box using any 
of the eight screw holes. Insert and 
tighten mounting screws supplied with 
Cover Plate Kit. Do not overtighten. See 
Figure 2. Make sure the Adapter Plate 
is level. 
3.  Attach the UWP by hanging it on the 
top hook of the Junction Box Adapter 
and then snapping the bottom of the 
UWP in place. See Figure 3.
4.  Snap the Cover Plate onto the Junction 
Box Adapter. See Figure 4.
Use 2x 
supplied 
screws #6 
5/8”
4
3
2
1