42
SYStEM StARt UP And oPERAtIng
InStRUctIonS
SEttIng tHE SEnSoR cHAnnEl nUMBER
8.0
8.1
A) Display
B) Down adjustment
C) OK - Accept
41. Controller number designation Within the sensors when used with
REHAU Add On Module which can control 6 extra head zones
40. Channel allocation setting
Set the channel selector within the various sensors so that it
corresponds with the thermal actuator output that it must activate.
Each sensor on the system is to be allocated a channel number.
Under the front cover of all sensors a selector can be accessed. (As
shown in Fig. 40). The number of its output (its CH channel) can be set
with a screwdriver The channel selection on all sensors can be carried
out without the sensor being supplied with power. However when the
power is on the sensors will need to be given control designation (see
section 8.0) and a HARD RESET must be carried out to the REHAU BA
controller to enable all sensors to be recognised.
A sensor set to CH 1 will activate the thermal actuators connected
to output TH1 within the controller. This will control the actuators
connected to that zone. For channel numbers 10 to 14, use the letter
designation A to E. 10 = A, 11= B, 12 = C etc.
Up to 13 slave sensors can be controlled by one REHAU CT2
Programmable Room Sensor. The REHAU BA control unit can
only accept 8 heated zone inputs (see fig. 40 for channel number
allocation). If additional heated zones are necessary, an REHAU Add
On Module must be utilised.
For Channel 0 see section 12.3, page 59
39. REHAU CT2 Programmable Room Sensor front cover layout
Number of zones
BA Controller
Add On Modules
Up to 8 Zones
1
0
9 to 14 Zones
1
1
0
%
MASTER
1
TH1
2
TH2
3
TH3
4
TH4
5
TH5
6
TH6
7
TH7
8
TH8
Add On MODULE
9
9
A
10
B
11
C
12
D
13
E
14
D) Up adjustment
E) Reset to factory settings
F) Pin button for clock adjustment