Selecting Thermostat Location; Installing Wallplate; Wiring The Thermostat - Honeywell TH8321 Product Data

VISIONPRO® 8000 SMART THERMOSTAT

Selecting Thermostat Location

Install the thermostat about 5 ft. (1.5m) above the floor in an
area with good air circulation at average temperature. See
Fig. 9.
YES
NO
NO 5 FEET
[1.5 METERS]
Fig. 9. Selecting 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.

Installing Wallplate

CAUTION
Electrical Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before wiring.
The thermostat can be mounted horizontally on the wall or
on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.
1. If your thermostat has a button along the top of the
wallplate, press the button on top and pull to remove
the wallplate as shown. Updated models do not have
this button. On those models, pull evenly along the
sides and bottom of the thermostat to separate it
from the wallplate.
Fig. 10. Separate wallplate from thermostat.
33-00096—04
NO
M19925
2. Position and level the wallplate (for appearance only).
3. Use a pencil to mark the mounting holes.
4. Remove the wallplate from the wall and, if drywall,
drill two 3/16-in. holes in the wall, as marked. For
firmer material such as plaster, drill two 7/32-in.
holes. Gently tap anchors (provided) into the drilled
holes until flush with the wall.
5. Position the wallplate over the holes, pulling wires
through the wiring opening. See Fig. 11.
6. Insert the mounting screws into the holes and
tighten.
Fig. 11. Mounting wallplate.
7. Connect common side of transformer to C terminal.
CONVENTIONAL
C
K
RC
R
U1
U1
U2
U2
Fig. 12. Connecting C wire to terminal block.

Wiring the Thermostat

1. Refer to Fig. 13. See Table 9 on page 84 for terminal
designations and "Wiring" beginning on page 84 for
more information.
2. Turn on 24 VAC NOW.
8
C S1 S1
K
S1 S1
R
C W
O/B
R
Y Y
U1
G
G
U1
W2 AUX
-E
U2
Y2 Y2
U2
L/A
A
S1 S1
S1 S1
W O/B
Y Y
G G
W2 AUX
-E
Y2
Y2
A
L/A
HEAT PUMP