Wiring - Honeywell VisionPRO TB8220 User Manual

WALL
WIRES THROUGH WALL
AND WIRE SLOT
MOUNTING
HOLES
MOUNTING
SCREWS (2)
Fig. 8. Install wallplate.

WIRING

CAUTION
Electrical Shock Hazard.
Can cause electrical shock or equipment damage.
Disconnect power supply before connecting wiring.
IMPORTANT
— All wiring must agree with applicable codes,
ordinances and regulations.
— Use 18 gauge thermostat wire. Shielded cable is not
required.
NOTES:
— Refer to Table 5 for terminal designation
descriptions.
— See Fig. 12 through 22 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. 9.
CONVENTIONAL
Y2 Y2
L
A
W1 W2
S1 S1
S2 S2
SCREW TERMINALS
Fig. 9. Terminal identifications for system type.
2. Loosen screw terminals used for the application.
WALL ANCHORS (2)
M19916
HEAT PUMP
RC RC
R R
W O/B
Y Y
G G
C C
M22780
TB8220 COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT
3. Insert the wires into the terminal block and tighten each
screw terminal. See Fig. 10.
Fig. 10. Insert wires into terminal block.
4. Push excess wire back into the wall opening and restrict
wires to the shaded area. See Fig. 11.
5. Plug the wall opening with nonflammable insulation to
prevent drafts from affecting the thermostat.
WALL OPENING
SHADED AREA
Fig. 11. Restrict wires to shaded area of wire hole.
System Type
Standard Heat/Cool Conventional
Heat Only
Heat Only with Fan
Cool only
Standard Multistage
up to 2 Heat/2 Cool
Heat Pump
(No Auxiliary Heat)
Heat Pump
(with Auxiliary Heat)
Multiple T7770A
Sensors
Multiple C7189U
Sensors
5
M19917
WIRE WALLPLATE
Table 4. Wiring Diagrams.
Wallplate Terminal
Identifications
Conventional
Conventional
Conventional
Conventional
Heat Pump
Heat Pump
—
—
M22266
Wiring Diagram
Figure
12, 13
14
15
16
17, 18
19, 20
21, 22
27, 28, 29
30
63-2625—3