RAM 712 KNX
room thermostat for surface-mounted and flush-mounted installation
theben
Version: Dec-10 (subject to change) Page 43 of 65
5 Typical applications:
5.1 The school environment: Heating with presence detector and
frost protection via window contact.
5.1.1 Description
RAM 712 controls one or more actuators.
Once someone enters the room the RAM 712 changes to comfort mode, otherwise it operates in
standby mode during the day and in night time mode at night.
If a window is opened RAM 712 automatically changes to frost protection mode
A presence detector is used for presence recognition.
The presence telegram is only sent after a switch-on delay so that the heating is not activated if
the room is only occupied for a short time.
All windows are fitted with window contacts. These are connected with input 1 on
RAM 712.
The window status is sent via a common group address to the window position input object.
RAM 712 will recognise when a window is opened and automatically switch to frost protection
mode. When the window is closed the previously set operating mode will be restored.
5.1.2 Devices:
•
RAM 712 (order no. 712 9 200)
•
Cheops drive (order no. 731 9 200)
•
TR 644 S EIB / TR 644 S DCF EIB (order no. 644 9 203 / 644 9 204)
•
Compact office EIB (order no. 201 9 200)
