Technical data

Comfort mode can be temporarily extended (e.g. working after business hour or on
weekends) when the thermostat is in Economy mode. The operating mode button
switches the operating mode back to Comfort for the period preset in P68.
Press the operating mode button again to stop the timer.
The following conditions must be fulfilled:
• mode selection via operating mode button is set to "Protection-Auto"
(P02 = 1) and the time schedule via bus is Economy.
• Parameter P68 (extend Comfort period) is greater than 0.
During the temporary Comfort mode extension, symbol appears.
If parameter P68 (extend Comfort period) = 0, extended Comfort cannot be
activated; pressing the operating mode button will switch the thermostat to
Protection.
If the operating mode switchover contact is active, pressing the operating mode
button will show "OFF" (blinking).
3.2.2 Communication examples
The following examples show two typical applications of a central time schedule in
conjunction with local control of the room operating mode.
The room operating mode in rooms 1…2 of a building is determined by the time
schedule. Window contacts are fitted in all rooms.
The following conditions are specified:
The rooms are used and controlled by the time schedule as follows:
– Night setback from 17:00 to 08:00 (Economy)
– Protection from 20:00 to 06:00
– Lunch break from 12:00 to 13:00 (Precomfort).
The substitution (parameter P88) for Precomfort via bus is set on the thermostats
as follows:
– Room 1: Comfort (1)
– Room 2: Economy (0).
Temporary timer to
extend the Comfort
mode
18 / 92
Siemens RDF301, RDF301.50..., RDF600KN Basic documentation CE1P3171en
Building Technologies Functions 2014-05-23