MULTI-STAGE TERMINAL OUTPUTS
Refer to equipment manufacturers’ instruc- tions for specific system wiring information.
You can configure the thermostat for use with either
This thermostat is designed to operate a
Use the terminal output information below to help you wire the thermostat properly for your
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| THERMOSTAT TERMINALS (Upper) |
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L | PH | D | SA | SB | SC | O T |
Malfunction Light | Not Used | Remote Sense A | Remote Sense B | Remote Sense C | Outdoor Sensor | |
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| THERMOSTAT TERMINALS (Lower) |
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SYSTEM | E | C | R | W3/A1 | W2 | E2/P | W1 | Y2 | Y1 | B | O | G |
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| Damper terminal |
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| Energized in |
| Blower/Fan Energized |
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| 24 Volt | 24 Volt | Heat mode 2nd |
| Heat mode | Cool mode | Cool mode | Energized in | on call for Cool (and | ||
No Function | energized in | No function | Heat and Off | |||||||||
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| (Common) | (Hot) | occupied mode | stage |
| 1st stage | 2nd stage | 1st stage | Mode | Cool Mode | Heat if confgured to |
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| Electric Heat). | ||
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HEAT PUMP TERMINAL OUTPUTS
Refer to equipment manufacturers’ instruc- tions for specific system wiring information.
You can configure the thermostat for use with the following heat pump system types:
HEAT PUMP TYPE 1.
HEAT PUMP TYPE 2.
HEAT PUMP TYPE 3. System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup.
This thermostat is designed to operate a
Use the terminal output information below to help you wire the thermostat properly for your heat pump system type. After wiring, see CONFIGURATION section for proper thermostat configuration.
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L | PH |
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Malfunction Light | Not Used | Remote Sense A | Remote Sense B |
| Remote Sense C |
| Outdoor Sensor |
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SYSTEM |
| E | C | R | W3/A1 |
| W2 | E2/P | W1 |
| Y2 | Y1 | B | O | G | |||||
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| Heat mode |
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| Heat mode 3rd | E2 - Emergency |
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| Heat and cool | Energized in |
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| 1st stage. |
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| Damper terminal |
| mode constant |
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| Blower/Fan Energized | ||||||
Heat Pump 1* |
| 24 Volt | 24 Volt |
| stage. | Heat mode |
| No Output | modes 1st | Heat, Off, | Energized in | |||||||||
| Emergency | (Common) | (Hot) | energized in |
| Emergency mode | output. | 2nd stage |
| stage | Emergency | Cool Mode | on call for Heat and | |||||||
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| mode 1st | occupied mode |
| P - All other modes |
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| Cool | ||||||||||||
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| 2nd stage | constant output. |
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| (compressor) | Mode |
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| E2 - Emergency |
| Heat and cool | Heat and cool | Energized in |
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| Emergency |
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| Damper terminal |
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| mode constant |
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| Blower/Fan Energized | ||||||
Heat Pump 2* |
| 24 Volt | 24 Volt |
| Emergency mode | Heat mode |
| modes 2nd | modes 1st | Heat, Off, | Energized in | |||||||||
| mode 1st | (Common) | (Hot) | energized in |
| 2nd stage | output. | 3rd stage |
| stage | stage | Emergency | Cool Mode | on call for Heat and | ||||||
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| stage | occupied mode |
| P - All other modes |
| Cool | |||||||||||||
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| (compressor 2) | (compressor 1) | Mode |
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| constant output. |
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System requiring separate signals for heat (W1, W2) and cool (Y1); gas or electric backup |
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| Heat mode 2nd | E2 - Emergency |
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| Energized in |
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| Emergency |
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| Damper terminal |
| mode constant |
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| Blower/Fan Energized | |||||
Heat Pump 3** |
| 24 Volt | 24 Volt |
| stage. | Heat mode |
| No Output | Cool mode | Heat, Off, | Energized in | |||||||||
| mode 1st | (Common) | (Hot) | energized in |
| Emergency mode | output. | 1st stage |
| 1st stage | Emergency | Cool Mode | on call for Heat and | |||||||
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| stage | occupied mode |
| P - All other modes |
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| 2nd stage. | constant output. |
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*If system does not provide connection to E, jumper W1 to E to provide Aux heating in emergency mode. ** If system does not provide connection to E, jumper W2 to E to provide Aux heating in emergency mode.
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