Home > Honeywell Home > Honeywell Home M38794 T10 and T10 plus Pro Smart Thermostat with RedLINK Installation Guide
Honeywell Home M38794 T10 and T10 plus Pro Smart Thermostat with RedLINK Installation Guide
Conventional systems
Note: When T10+ is used with THM04R3000 EIM, wire only R and C to T10+ to
power the thermostat. Then follow the wiring diagrams included in EIM literature.
Power open Zone valve
Series 20 Zone valve
(power open and power closed)
R
Power from transformer
R
Power from transformer
Rc [R+Rc joined by Slider Tab]
Rc [R+Rc joined by Slider Tab]
W
Valve
W
Y
Power open valve (usually B)
Power close valve (usually W)
C* 24VAC common
C* 24VAC common
NOTE: If the valve uses Y for power close, the thermostat needs to be configured for a radiant heat system
without cooling.
Heat pumps systems
1H/1C Heat Pump System
Power
Rc [R+Rc joined by Slider Tab]
Compressor contactor
2H/2C Heat Pump System
Power
Rc [R+Rc joined by Slider Tab]
Compressor contactor (stage 1)
R
R
Y
Y
C* 24VAC common
C* 24VAC common
O/B Changeover valve
O/B Changeover valve
G
Fan relay
G
Fan relay
Y2 Compressor contactor (stage 2)
Heat pump fault input
L
2H/1C Heat Pump System
Power
Rc [R+Rc joined by Slider Tab]
Compressor contactor
3H/2C Heat Pump System
Power
Rc [R+Rc joined by Slider Tab]
Compressor contactor (stage 1)
R
R
Y
Y
C* 24VAC common
C* 24VAC common
O/B Changeover valve
O/B Changeover valve
G
Fan relay
G
Fan relay
Aux Auxiliary heat**
Aux Auxiliary heat**
E
L
Emergency heat relay**
Heat pump fault input
E
Emergency heat relay**
Y2 Compressor contactor (stage 2)
L
Heat pump fault input
NOTE: Do NOT use W for heat pump applications. Auxiliary heat must wire to AUX or E.
* This thermostat requires a C-Wire. If a C-Wire is not available and the system uses Y and G, use C-Wire
adapter accessory THP9045A1098 or THP9045A1023.
** If you do not have separate wires for the Aux and E terminals, connect the wire to the Aux terminal.
7
| General | Details |
|---|---|
| Name | Honeywell Home M38794 T10 and T10 plus Pro Smart Thermostat with RedLINK Installation Guide |
| Make | Honeywell Home |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.5 MB |
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