TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT
62-3070—03 2
Fig. 1. Select thermostat location.
Do not install the thermostat where it can be affected by:
— Drafts or dead spots behind doors and in corners.
— Hot or cold air from ducts.
— Radiant heat from sun or appliances.
— Concealed pipes and chimneys.
— Unheated (uncooled) areas such as an outside wall
behind the thermostat.

Separate Wallplate from Thermostat

1. Separate the wallplate from the thermostat. See
Fig. 2.
Fig. 2. Separate wallplate from thermostat.

Install Wallplate (See Fig. 3)

Mount the thermostat horizontally on the wall:
1. Pull the wires through the wire hole on the wallplate.
2. Position the wallplate on the wall with the arrow
pointing up. Level the wallplate for appearance only.
3. Use a pencil to mark the mounting holes.
4. Remove the wallplate from the wall and drill two
3/16in. h oles in the wall (if drywall) as marked. For
firmer material such as plaster, drill two 7/32 in.
holes. Tap the wall anchors (provided) into the
drilled holes until flush with the wall.
5. Pull the wires through the wire hole on the wallplate
and position the wallplate over the wall anchors.
6. Insert the mounting screws into the wall anchors
and tighten.
Fig. 3. Install wallplate.
WIRING
IMPORTANT
— All wiring must agree with applicable codes,
ordinances and regulations.
— Use 18 gauge thermostat wire. Shielded cable is
not required.
NOTES:
— Sensor wires must have a cable separate
from the thermostat control cable.
— Refer to Table 2 for terminal designation
descriptions.
— See Fig. 7 through 17 for wiring diagrams for
specific equipment applications.
1. Select set of terminal identifications that correspond
to your system type (conventional or heat pump).
(See Fig. 4).
Fig. 4. Terminal identifications for system type.
2. Loosen screw terminals used for the application.
5 FEET
[1.5 METERS]
YES
NO
M22258
NO
NO
THERMOSTAT
WIRE HOLE
M22267
WALLPLATE
WALL
MOUNTING
HOLES
M19916
MOUNTING
SCREWS (2)
WALL ANCHORS (2)
WIRES THROUGH WALL
AND WIRE SLOT
M22780A
Y2
L
A
W1
S1
S2
RC
R
O/B
Y
G
C
Y2
L
A
W2
S1
S2
RC
R
W
Y
G
C
SCREW
TERMINALS
HEAT PUMP
CONVENTIONAL