Honeywell TH8321 Manuel D’Utilisation

3

68-0280—01

TH8000 VisionPRO™ Touchscreen Thermostats show “Aux. 

Heat On” on the screen when Auxiliary Heat is activated.

TH8000 VisionPRO™ Touchscreen Thermostats show  “Heat 

On” on the screen when Emergency Heat is activated and 

the System mode is in the Em. Heat position. 

C7089U, C7189U and TH8000 VisionPRO™ Touchscreen 

Thermostats are factory-calibrated and require no field 

calibration.

TH8000 VisionPRO™ Touchscreen Thermostats operate with 

droopless control. Once the thermostat senses that 

1st stage is running at 90% capacity, the thermostat 

energizes 2nd stage.

TH8000 VisionPRO™ Touchscreen Thermostat: Mounts 

directly on the wall in the living space using mounting 

screws and anchors provided. Fits a vertical or horizontal 

2 x 4 in. junction box.

C7089U Outdoor Sensor: Mounts outside of living space with 

mounting clip and screws provided.

C7189U Remote Indoor Sensor: Mounts directly on the wall 

using mounting screws and anchors provided. Fits a 

vertical 2 x 4 in. junction box.

32003796-001 Cover Plate is used to cover marks left on the 

wall by the old thermostat.

TH8000 Touchscreen Thermostat: see Fig. 1.

C7089U Outdoor Sensor Mounting Clip: see Fig. 2.

32003796-001 Cover Plate: see Fig. 3.

C7189U Remote Indoor Sensor: see Fig. 4.

VisionPRO™

8000 

Touchscreen

11 - 1H/1C

32 - 3H/2C

0 - Standard

1 - Humidity 

Sensor

U - Universal (Auto 

changeover and/or 

manual change-

over) dual powered, 

system flexibility, 

schedule flexibility.

M22421

6 (152)

THERMOSTAT

4-9/16

(116)

  3-3/8 (86)

WALLPLATE

             3-3/8 (86)    

 

THERMOSTAT

AND WALLPLATE

1-3/8 (35)

M4488

1-1/2  (38)

7-7/8 (200)

3-5/16 (84)

3-5/16

 (84)

M22139

5-1/2

 (140)