Honeywell T6 Pro Programmable Thermostat Instruction Manual
Wiring conventional systems: forced air and hydronics
Shaded areas below apply only to TH6320U/TH6220U or as otherwise noted.
1H/1C System (1 transformer)
Power [1]
Rc [R+Rc joined by Slider Tab] [2]
1H/1C System (2 transformers)
Power (heating transformer) [1]
Rc Power (cooling transformer) [1]
R
R
Y
Compressor contactor
24VAC common [3]
Heat relay
Y
Compressor contactor
24VAC common [3, 4]
Heat relay
C
W
G
C
W
G
Fan relay
Fan relay
Heat-only System
Power [1]
Rc [R+Rc joined by Slider Tab] [2]
Heat-only System with Fan
Power [1]
Rc [R+Rc joined by Slider Tab] [2]
R
R
C
24VAC common [3]
Heat relay
C
24VAC common [3]
Heat relay
Fan relay
W
W
G
Heat-only System (Series 20) [5]
Series 20 valve terminal “R” [1]
Rc [R+Rc joined by Slider Tab] [2]
Cool-only System
Power [1]
Rc [R+Rc joined by Slider Tab] [2]
R
R
Y
Series 20 valve terminal “W”
24VAC common [3]
C
W
Y
C
G
Compressor contactor
24VAC common [3]
Fan relay
Series 20 valve terminal “B”
Heat-only System
(power open zone valve) [5]
2H/2C System (1 transformer) [6]
Power [1]
Rc [R+Rc joined by Slider Tab] [2]
R
Power [1]
R
Rc [R+Rc joined by Slider Tab] [2]
W
C
Valve
24VAC common [3]
Y
Compressor contactor (stage 1)
24VAC common [3]
Heat relay (stage 1)
Fan relay
C
W
G
W2 Heat relay (stage 2)
Y2 Compressor contactor (stage 2)
NOTES
Wire specifications: Use 18- to 22-gauge thermostat wire. Shielded cable is not required.
[1] Power supply. Provide disconnect means and overload
[4] Common connection must come from cooling transformer.
protection as required.
[5] In ISU set Heat system type to Radiant Heat. Set number of
[2] Move R-Slider Tab on UWP to the R setting. For more
cool stages to 0.
information, see “Setting Slider Tabs” on page 3
[6] In Installer Setup, set system type to 2Heat/2Cool
[3] Optional 24VAC common connection.
Conventional.
4
| General | Details |
|---|---|
| Name | Honeywell T6 Pro Programmable Thermostat Instruction Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.01 MB |
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