Home > Honeywell > Honeywell VisionPRO TH8000 Series Touch Screen Programmable Thermostat User Guide
Honeywell VisionPRO TH8000 Series Touch Screen Programmable Thermostat User Guide
Installation Guide
Wiring
Wiring guide—conventional systems
Shaded areas below apply only to TH8320/TH8321.
1H/1C System (1 transformer)
1H/1C System (2 transformers)
Rc
R
W
Y
Power [1]
[R+Rc joined by jumper]
Heat relay
Compressor contactor
Fan relay
Rc
R
W
Y
Power (cooling transformer) [1, 2]
Power (heating transformer) [1, 2]
Heat relay
Compressor contactor
Fan relay
G
G
C
S1
S2
24VAC common [3]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
C
S1
S2
24VAC common [3, 4]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
Heat Only System
Heat Only System With Fan
Rc
R
W
C
Power [1]
[R+Rc joined by jumper]
Heat relay
Rc
R
W
G
Power [1]
[R+Rc joined by jumper]
Heat relay
24VAC common [3]
Fan relay
S1
S2
Optional outdoor/remote sensor
Optional outdoor/remote sensor
C
S1
S2
24VAC common [3]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
Heat Only System (Series 20)
Cool Only System
Rc
R
W
Y
[R+Rc joined by jumper]
Series 20 valve terminal “R” [1]
Series 20 valve terminal “B”
Series 20 valve terminal “W”
24VAC common [3]
Rc
R
Power [1]
[R+Rc joined by jumper]
Compressor contactor
Fan relay
Y
G
C
S1
S2
Optional outdoor/remote sensor
Optional outdoor/remote sensor
C
S1
S2
24VAC common [3]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
2H/2C System (1 transformer)
2H/2C System (2 transformers)
Y2
W2
Rc
R
W
Y
Cool relay 2
Heat relay 2
Power [1]
[R+Rc joined by jumper]
Heat relay 1
Y2
W2
Rc
R
Cool relay 2
Heat relay 2
Power (cooling transformer) [1, 2]
Power (heating transformer) [1, 2]
Heat relay 1
Cool relay 1
W
G
Fan relay
Y
Cool relay 1
C
S1
S2
24VAC common [3]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
G
C
S1
S2
Fan relay
24VAC common [3, 4]
Optional outdoor/remote sensor
Optional outdoor/remote sensor
See [notes] below
[1] Power supply. Provide disconnect means and overload protection as required.
[2] Remove jumper for 2-transformer systems.
[3] Optional 24VAC common connection.
[4] Common connection must come from cooling transformer.
69-2693—01
4
firealarmresources.com
| General | Details |
|---|---|
| Name | Honeywell VisionPRO TH8000 Series Touch Screen Programmable Thermostat User Guide |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.26 MB |

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