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7.
Room units, thermostat
Either a room sensor, an RC25 room unit, a pair of room units on the bus, or a room thermostat can be
connected to each heating zone. In the service menu of the zones it is possible to select the currently
used type of room sensor / thermostat.
It is possible to choose the control of the zone by a room sensor or a unit from any other zone from the
web interface of the Controller. This option is not available on the display.
Room sensor
A Pt1000 sensor can be connected to the Controller.
Zone 1
......................... Terminal B7 (AI3).
Zone 2
......................... Any free terminal C2 to C9, or an add-on module for zone 2. The appropriate
terminal must then be selected in the input management.
Zones 3 to 6
............... Add-on modules.
RCM2, RCD or RCA room units
RCM2, RCD or RCA room units shall be connected to a CIB bus. After connecting, their HW address shall
be entered in the menu
module addr.
for zones 1 and 2. For other zones, the web interface needs to be
used.
RC25 room unit
The RC25 room unit can also be connected to the Controller via the CIB bus. It senses the room
temperature and relative humidity in the heated zone, allows easy correction of the desired temperature
by a knob, indicates the operating status or alarm, or may have other optional functions.
We recommend using a cable with a twisted shielded pair and a core diameter of preferably 0.8 mm (e.g.
J-Y (St) Y 1x2x0.8).
Thermostat
A simple thermostat with a potential-free contact can be connected to the Controller.
