Bosch BCC100 Quick Start Manual page 25

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System Modes

Unit Operating Mode

Heat: Unit will be cycled to maintain scheduled heating set-point.

Cool Only: Unit will be cycled to maintain scheduled cooling set-point.

Auto: Unit will be automatically switched between heating and

cooling operations to maintain heat/cool set-points.

Off: All heating and cooling functions are turned off. Fan can still

operate in this mode if manually activated.

Emergency Heat (only available on Heat Pumps):

Will turn off all compressors and turn on backup electric heat source.

Fan Operation

Auto: Fan will follow heating

and cooling operations.

On: Fan runs non-stop for 24 hours.

Circulation: Fan runs on and off

regularly in addition to heating and cooling operations.

By selecting this option, you also need to define the

operation time length and schedule for the circulation.

If the G wire was substituted for the C wire during

installation, the Fan-On & Circulation options will

not function.

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