ABB i-bus KNX Product Manual page 85

Room thermostat fan coil with display

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The second object )"operating mode switching OMO") may "overwrite"

the first temporarily. This means, for example, if a frost/heat protection

telegram is received, the ambient temperature controller switches to frost

or heat protection mode. If the frost or heat protection is reset by the receipt

of another telegram, the ambient temperature controller enables the

operating mode on the "normal" object. As a result, it is capable of noting

operating modes. This object is controlled, for example, by binary inputs

that record information from window contacts.

The following apply to both 1-byte communication objects:

= auto ("operating mode switching OMO" only)

= comfort

= standby

= night

= frost/heat protection

5 – 255 = not permitted

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