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Compatibility
Based on Nest’s online compatibility checker data, the Nest Thermostat works with
most 24V systems, including gas, electric, oil, forced air, variable speed, heat pump
and radiant. It can control:
• Heating: one, two and three stages (W1, W2, W3)
• Cooling: one and two stages (Y1, Y2)
• Heat pump: with auxiliary and emergency heat (O/B, AUX, E)
• Fan (G, G2, G3)
• Power (C, RH, RC)
• Humidifier or dehumidifier (HUM, DEHUM)
The Nest Thermostat’s
*
connector can accept only one of these wires:
W3, E, HUM or DEHUM.
The Nest Thermostat is designed to work even if your home doesn’t have a common (C) wire.
Rarely, installing a new C wire may be required.
Professional installation recommended for:
• Dual fuel systems (heat pump with furnace)
• Whole-home humidifiers and dehumidifiers
Watch the video
To see how it’s done, watch our installation video at nest.com/support/thermostat
¿Prefieres leer esto en español? Visita nest.com/es-guide
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