WIRING DIAGRAMS
Figure 4 – Heat Pump Systems
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| Jumper |
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L | O/B | Y | Y2 | +W/E | +W2 | G | RH RC | C |
System
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| Heat Mode - 2nd | Heat Mode - 3rd |
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| O |
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| Stage, Emergency | Stage, Emergency |
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Heat Pump 1 |
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| Mode - 1st Stage | Mode - 2nd Stage | Blower/ |
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| Energized in |
| No | +Note: Dual Fuel option | +Note: Dual Fuel option | Circulator Fan |
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(HP1) | Diagnostic | Cool Mode | Heat and | Output | Energized on |
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| stage 1 (compressor) | stage 1 (compressor) | 24 Volt | 24 Volt | ||||||
| Indicator |
| Cool Mode |
| when auxiliary heat | when auxiliary heat | Call for Heat | 24 Volt | ||
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| is energized | is energized | or Cool. | (Hot) | (Hot) | (Com- | ||
| or System | 1st Stage |
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Heat Pump 2 | Malfunction | Energized in | 2nd | Heat Mode - 3rd | Heat | Set Elect/Gas | Heat | Cool | mon) | |
(Compressor) | Stage, Emergency | Stage. Emergency |
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(HP2) | Switch | Heat, Off, |
| Stage | Mode - 1st Stage | Mode - 2nd Stage | Option for |
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| Emergency |
| (Com- | +Note: Dual Fuel option | +Note: Dual Fuel option | Emergency |
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| Mode |
| pressor) | mode |
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| stage 1 (compressor) | stage 1 (compressor) |
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| when auxiliary heat | when auxiliary heat |
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| is energized | is energized |
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Comfort Alert II Module |
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or Similar System | NEUTRAL |
Diagnostic Module | 24VAC |
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See Module Instructions | HOT |
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for details |
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* Common connection required for diagnostic or malfunction indication. |
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+ Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize. |
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TRANSFORMER | ||||||
120VAC
Heat Pump Connections
Refer to equipment manufacturers' instructions for specific system wiring information.
This thermostat is designed to operate a
You can configure the thermostat for use with the following systems:
HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas or electric backup.
HEAT PUMP TYPE 2 (HP 2).
After wiring, see INSTALLER CONFIGURATION section for proper thermostat configuration.
Figure 5 – 3-Wire (SPDT) Heat Only Zone Valve Wiring
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6 | Y | W | G | RH RC | C |
System
Single Stage
Closes Valve
(6)
Opens Valve
(4)
Blower/Circulator Fan Energized
24 Volt | 24 Volt |
(Hot) | (Hot) |
Heat | Cool |
(5) |
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Constant
24Volt (Com- mon)
NEUTRAL
24VAC
HOT
120VAC
CLASS II
TRANSFORMER
4
