Power The Thermostat; Installing Batteries; Mount Thermostat To Wallplate - Honeywell VISIONPRO TB8220U Installation Instructions Manual

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT

POWER THE THERMOSTAT

You can choose from three methods to power the
thermostat:
• Batteries only (AAA alkaline).
• 24 Vac direct connection only.
• 24 Vac direct connection with battery backup (AAA
alkaline).
Wiring 24 Vac Common
• Single-Transformer System—Connect the common
side of the transformer to the C screw terminal of the
thermostat wallplate. Leave the metal jumper wire in
place between Rc and R.
• Two-Transformer System—Connect the common side
of the cooling transformer to the C screw terminal of
the thermostat wallplate. Remove the metal jumper
wire between Rc and R.

Installing Batteries

1. Install three AAA alkaline batteries on the back of
the thermostat as marked. See Fig. 22.
Fig. 22. Installing batteries.
2. Locate and remove the tab labeled Remove. See
Fig. 23.
SET CURRENT DAY
SET MONTH

Mount Thermostat to Wallplate

1. Align the terminal screw blocks with the pins on the
back of the thermostat.
62-3070—07
BATTERIES (3)
M19918
MON MON TUE WED WED THU THU FRI FRI S S A A SUN
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
CHANGE FILTER UV LAMP HUMIDIFIER PAD
DONE
USE ARROWS TO SET YEAR AND TIME
Fig. 24. Setting calendar and time after initial powerup.
IMPORTANT
This tab must be removed in order to set the
real-time clock.
REMOVE
TAB
Fig. 23. Remove tab labeled REMOVE from
thermostat back.
Setting Calendar and Time
Setting Calendar
This thermostat is designed to, under normal use,
automatically keep current time and day in memory for up
to ten years once the calendar is set. There are two ways
to set the calendar for this thermostat:
SETTING CALENDAR WHEN THERMOSTAT IS FIRST
POWERED
When the thermostat is first powered, the display is ready
to set the calendar and time. The thermostat proceeds
through a sequence of setup screens. See Fig. 24.
SETTING CALENDAR AFTER THERMOSTAT IS
ALREADY FUNCTIONING
See steps 1 through 4, in the Advanced Settings section,
to set year, month and day.
MON MON WED WED THU THU
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
CHANGE FILTER UV LAMP HUMIDIFIER PAD
PM
DONE
2. Push the thermostat straight onto the wallplate until
it snaps into place. See Fig. 25.
8
FRI FRI S S A A SUN
M22761
M19920