Bosch BCC50 Installation Manual And User's Manual page 4

Compatibility
A C-wire (common wire) is required to power the unit
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Two wire systems are not supported. If a C-wire is not
readily available, we recommend you seek professional
support from your local contractor.
The Bosch Connected Control BCC50 Thermostat works
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with most 24VAC systems, including gas, oil, propane,
electric, forced air, variable speed, heat pump and radiant.
The thermostat cannot support
Line voltage thermostats
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Electric baseboard heaters
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Proprietary communicating thermostats
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Millivolt systems
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Remote sensors
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Professional installation is recommended
for the following systems
Dual Fuel systems (Heat Pump combined with a Furnace)
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Whole-home humidifiers and dehumidifiers
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Are you unsure of your system compatibility
or how to install your thermostat and need help?
u Self-support videos can be found on our website at:
BoschHeatingAndCooling.com/BCC50
u Contact our support team at 1-800-283-3787