Art. No. ..5192KRMTSD
Art. No. ..5194KRMTSD
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When a window is open or when the automatic frost protection is active, it is not possible to
switch over the controller operating mode using buttons with the "Controller operation"
function, and not in the menu for the settings. A button press will thus not be effected after
the window closes, or at the end of the automatic frost protection.
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Frequent draughts in a room can cause unintentional activation/deactivation of frost
protection when the automatic frost protection mode is active, and if the parameterized
temperature decrease is not low enough. Therefore switching into the frost/heat protection
mode by window contacts should generally be preferred to the automatic option.
Additional information on the operating mode after a reset
In the ETS, it is possible to use the "Operating mode after reset" parameter in the "Room
temperature control -> Controller general" parameter node to set which operating mode should
be activated after bus voltage recovery or re-programming by the ETS. The following settings
are possible...
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"Comfort operation" -> The comfort mode will be activated after the initialisation phase.
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"Standby mode" -> The standby mode will be activated after the initialisation phase.
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"Night operation" -> The night mode will be activated after the initializing phase.
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"Frost/heat protection operation" -> The frost/heat protection mode will be activated after
the initialisation phase.
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"Restore operation mode before reset" -> The mode set before a reset according to the
operating mode object or by pushbutton function (normal priority) will be restored after the
initialisation phase of the device. Operating modes set by a function with a higher priority
before the reset (Forced, Window status, Presence status) are not effected.
The objects associated with the activated operating mode will be updated after a reset.
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Note on the "restore operation mode before reset" setting:
Frequent changing of the operating mode (e. g. several times a day) during running
operation can adversely affect the life of the device as the read-only memory (EEPROM)
used has been designed for less frequent write access events only.
Page 121 of 309
Software "Room controller display compact module 146x11"
Functional description