Wiring Schematic - next generation
rehaU Ba controller With aDD on moDUle
16.0
REHAU
CT
ACTUATOR 1 & 2
ACTUATOR 3 & 4
ACTUATOR 5
ACTUATOR 6
ACTUATOR 7
ACTUATOR 8
REHAU
TA
+
-
LIMIT SENSOR
REHAU
TD
+
-
T T
+
T
+
T
+
CHANNEL 14
T T
+ +
CHANNEL 1
T T
+
T
+
T
+
CHANNEL 2
4 Core cable minimum 0.25 mm²
2 Core cable minimum 0.25 mm²
BA Controller (Main Control)
CT2 PROGRAMMABLE ROOM SENSOR
STANDARD SENSOR
FLOOR
LIMIT SENSOR
COMFORT PLUS
SENSOR
ACTUATOR 9
ACTUATOR 10
ACTUATOR 11
ACTUATOR 12
THERMAL ACTUATORS
1 2 3 4 5 6
L N L L L L LN N N N N
+ +
TT
ADD ON MODULE
1 2 3 4 5 6
L N L L L L LN N N N N
THERMAL ACTUATORS
SENSOR BUS
+
T
+
T
SENSOR BUS
MASTER
MODULE
WIRELESS
RECEIVER
RJ45
THERMAL ACTUATORS
1 2 3 4 5 6
L N L L L L LN N N N N
1 2 3 4 5 6
L N L L L L LN N N N N
THERMAL ACTUATORS
7 8
L LN N
7 8
L LN N
SWITCH
EXT.
O
+ +
TT
LINK
DISPLAY
L N
SUPPLY
SENSOR
SENSOR BUS
+
T
+
T
APP
SENSOR
SENSOR BUS
ON
OFF
1 2 3
4 5
6
7
8
C
B
A
9
8
7
6
5
4
3
2
1
0
F
E
D
7
6
5
4
3
2
1
0
9
8
INSTALL MODE
BOILER TEST
LEARN MODE
COMMISSIONING
MODE
X - RELAY
DISPLAY
STRING
NUMBER (1-F)
UNIT
NUMBER (1-9)
DIP SWITCH
X-RELAY OUTPUT FUNCTION
DIP - 5
DIP - 6
BOILER PUMP
OFF OFF
HIGH LIMIT ZONE VALVE ON OFF
COOLING DEVICE/MODULE
OFF ON
UP TO 14 CHANNELS
NETWORK BUS
NETWORK BUS
ADD-ON
MODULE
WIRELESS
RECEIVER
RJ 45
SWITCHNL
MOTORIZED
VALVE AT
MANIFOLD
1 2
3
4
5
I
Compact Mixer Unit (CMU)
High Limit Sensor
Thermostatic
Inlet Valve (TIV)
Zone Valve (ZV)
Balancing Valve (BV)
MANIFOLD G01
PORT No
FLOW
RETURN
HEATED ZONE 1-01
HEATED ZONE 1-01a
HEATED ZONE 1-02
HEATED ZONE 1-03
HEATED ZONE 1-04
SWITCHNL
MANIFOLD
VALVE AT
MOTORIZED
1 2
3
4
5
Actuators
MANIFOLD G02
PORT No
FLOW
RETURN
HEATED ZONE 2-01
HEATED ZONE 2-01a
HEATED ZONE 3-02
HEATED ZONE 3-03
HEATED ZONE 3-04
SUPPLY
230VAC
BOILER
0 0
X-RELAY SEC. PUMP
230VAC
LL NN
0 0
ACTUATOR 11
SUPPLY
230VAC
BOILER
B1 B2
X-RELAY SEC. PUMP
230VAC
LL NN
C1 C2
Orange & Grey
wires not required;
make electrically
safe
LINK
Orange & Grey
wires not required;
make electrically
safe
SECONDARY PUMP
MAINS
ZONE
VALVE
SUPPLY
230VAC
BOILER
B1 B2
X-RELAY SEC. PUMP
230VAC
LL NN
C1 C2
Orange & Grey
wires not required;
make electrically safe
LINK
230 V Switch
Live to Boiler
THERMAL ACTUATORS
1 2 3 4 5 6
L N L L L L LN N N N N
1 2 3 4 5 6
L N L L L L LN N N N N
THERMAL ACTUATORS
7 8
L LN N
7 8
L LN N
ACTUATORS
ON
OFF
1 2 3
4 5
6
7
8
C
B
A
9
8
7
6
5
4
3
2
1
0
F
E
D
7
6
5
4
3
2
1
0
9
8
INSTALL MODE
BOILER TEST
SENSOR CHECK
X - RELAY
DEHUMIDIFIER
STRING
NUMBER (1-F)
UNIT
NUMBER (1-9)
DIP SWITCH
X-RELAY OUTPUT FUNCTION
DIP - 5
DIP - 6
BOILER PUMP
OFF OFF
HIGH LIMIT ZONE VALVE ON OFF
COOLING DEVICE/MODULE
ON ON
RESERVED
ON
OFF
DIP SWITCH
DIP
1
ON
OFF
ON
OFF
TURN ON DIP - 3 TO ACTIVATE SENSOR CHECK
Power light blinks quickly, each red channel light
on master should now be lit if a room sensor is
present on that channel. Switch off to deactivate
ON
OFF
TURN ON DIP 1 & 2 TO ACTIVATE BOILER TEST
This closes the boiler start relay for 1 min
TURN ON DIP 1 TO ACTIVATE INSTALL MODE
Increase temperature on sensor in room 1, this
would activate actuator on output 1 and will
open after 1-3 mins, UFH pump to turn on and
mixing valve to open
TURN ON DIP 7 FOR DEHUMIDIFIER (COOLING ONLY)
If a dehumidifier is being used it can be connected via
a relay using number 1 output on the master and setting
DIP-7 to "on", the output given is 24Vac. Hence
Channel 1 cannot be used for room temperature control
DIP
2
DIP
3
DIP
7
The schematic shown explains the typical/basic
wiring principle of the REHAU Intelligent controls.
The number of Room Sensors can differ for each project.
NOTES
1. Earth wiring not shown for drawing clarity
2. All wiring and earthing to be in accordance with BS
7671:2002.
3. Secondary pump connection must be routed back to
the secondary pump terminals within the BA controller
if only 1 manifold secondary pump is connected to the
system. This is required to allow the pump to run should
any actuator connected to the Add On Modules be called
to open.
4. 4 core cable with a cross sectional area of 0.25mm²
must be used to connect the Add On Modules to the BA
Master Controller.
5. 2 core cable with a minimum cross sectional area of
0.25mm² must be used for the thermostatic bus.
6. All sensors connected to the bus must terminate at the
BA Master Controller not at the Add On Modules.
The above wiring schematic is for guidance only and should
not be used as definitive wiring diagram.
NETWORK BUS
NETWORK BUS
ADD-ON MODULE
WIRELESS
RECEIVER
RJ 45
Mains
SUPPLY
230VAC
BOILER
0 0
X-RELAY SEC. PUMP
230VAC
LL NN
0 0
Orange & Grey
wires not required;
make electrically safe
SECONDARY
PUMP
ZONE
VALVE
Limit
Sensor
SWITCH
EXT.
I O
+ +
TT
LINK
DISPLAY
L N
SUPPLY
SENSOR
SENSOR BUS
+
T
+
T
APP
SENSOR
SENSOR BUS
SENSOR BUS
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