WIRING DIAGRAMS
Heat Pump Connections
If you do not have a heat pump system, refer to fi gures
You can confi gure the thermostat for use with the following heat pump 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 confi guration.
Figure 3 – Heat Pump Systems
JumperJumper
| L | O/B | Y | Y2 | W/E | W2 | G | RH | RC | C |
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| NOTE: If your system does | |
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| O |
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| Heat Mode | Blower/ |
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| not provide an E connection, | |||
Heat Pump 1 |
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| 2nd Stage. |
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| jumper W2 to W/E to use | ||||||||
Energized in |
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| Emergency | Circulator |
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| the Auxiliary Heat in the | ||||||||
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| Output |
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(HP1) | Cool Mode |
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| Mode 2nd | Fan Energized |
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| Fault Indicator | Heat and |
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| Emergency | 24 Volt | 24 Volt | Optional* | Emergency Mode. | ||||||||||||
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| Cool Mode |
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| Stage | on Call for | 24 Volt |
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| Malfunction | B | 1st Stage |
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| Mode |
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| Heat or Cool. | (Hot) | (Hot) | (Com- |
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| Heat Mode | * Common connection | |||||||||||||||||
| Switch | Energized in | (Compressor) | 2nd | 1st Stage | Set Elect/Gas | Heat | Cool | mon) | ||||||||||||
Heat Pump 2 | Heat, Off, |
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| 3rd Stage. | Option for |
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| Emergency |
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(HP2) | Emergency |
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| Emergency |
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| Mode 2nd | Mode |
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System Malfunction | NEUTRAL |
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Module | 120VAC | |
| 24VAC | |
| HOT |
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| CLASS II |
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| TRANSFORMER |
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Single Stage and Multi-Stage Connections
Refer to equipment manufacturers’ instructions for specifi c system wiring information.
This thermostat is designed to operate a
You can confi gure the thermostat for use with the following fossil fuel systems:
SINGLE STAGE (SS 1) gas, oil or electric.
After wiring, see INSTALLER CONFIGURATION section for proper thermostat confi guration.
Figure 4 – Single Stage or Multi-Stage System (No Heat Pump) with Single Transformer
Jumper
L | O/B | Y | Y2 W/E | W2 | G | RH RC | C |
System
Single |
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| No |
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| Blower/ |
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Stage 1 | Fault | Energized Constantly |
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| No Output | Circulator |
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| Output |
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(SS1) | Indicator | in Cool Mode |
| Heat |
| Fan Energized | 24 Volt | 24 Volt | Optional* | ||
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| Cool Mode |
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| on Call for | ||||||
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| Cool (and | (Hot) | (Hot) | 24 Volt | ||
| System | B | 1st Stage |
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Multi- | Cool | 1st Stage | Heat Mode | Heat if | Heat | Cool | |||||
Malfunction |
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Stage 2 | Energized Constantly |
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| 2nd Stage | configured |
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Switch | in Heat, Off, |
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(MS2) |
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| 2nd |
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| for Electric |
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| Emergency |
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| Heat) |
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*Common connection required for fault or
malfunction indication.
System Malfunction Module
NEUTRAL
24VAC
HOT
120VAC
CLASS II
TRANSFORMER
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