33
SUPPLY
230VAC
BOILER
B1 B2
X-RELAY
SEC. PUMP
230VAC
L
L
N
N
C1 C2
UFH PUMP
UFH PUMP OUTPUT ON FS/FS-C controller
UFH
SUPPLY
230VAC
BOILER
B1 B2
X-RELAY
SEC. PUMP
230VAC
L
L
N
N
C1 C2
X - Output
X - Output on the FS/FS-C controller
UFH
5.2.3 Connecting REHAU Add On, Extension Modules
The addition of REHAU Add On Extension modules
(max 1 Add On module)
will increase the zoning potential from 8 to 14 zones.
The addition of REHAU Add On Extension module will increase
the zoning potential from 8 to 14 zones. The Master Controller
is connected to the extension module using an RJ 45 connector
cable (this is included with every Add On Module). If the distance
between the master and the Add On Module exceeds 0.5m, then
net extension kit is required (Art. No: 202239) and use a 4 core
cable 0.25mm
2
.
230V output from X-relay
The X relay output is volt free as shown in fig.26 If the relay is
required to be used as an L & N switch, connect a link wire from
mains live to C1, connect the device live to C2, and the device
neutral to mains Neutral.
The Pump relays will energise after a delay when any room
sensor calls for heat, this is to give time for the circuit
actuators to open. The delay times are:
Secondary FH
180 seconds pump
Main pump
190 seconds
26. X - Output on the BA controller
BA Master
Controller
Add On
Module
NET EXTENSION KIT
(Required if Add On Module is more than
0.3m apart from the Master Controller)
RJ 45 Connection
RJ 45 Connection
25. Connecting extension modules
