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Controls a gas, oil or electric furnace and the fan when adding a heat pump to an existing heating system
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Features
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- Compatible with the TH144 Series thermostat
- Clearly labeled wires and connections enable simple installation and servicing
- Compatible with most other heat pump thermostats
- Compact size permits installation on or inside an electrical box
- Integrated design eliminates need for two-relay setup
- Low voltage dry contact output activates auxiliary heating system
- Line voltage contact output controls fan
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The Smartest DIY Home Improvements
