Buderus 500-24S Installation And Maintenance Instructions Manual page 27

V Slide the bracket in the guide rails on the underside of
the boiler ( fig. 36).
V Remove the securing screw (
lower the Boiler Control Unit (DBA) (
V Connect the two wires of cable from the ModuLink
receiver to terminal 1 and 2 of the connection block on
the back of the DBA (
polarity sensitive.
A green LED will light on the receiver, when installed
correctly and the boiler is reconnected to the mains
electricity supply.
There is no requirement to setup the RF link between the
thermostat and receiver. This has been completed as part
of the manufacturing process.
The room thermostat sends a signal to the receiver at
least every 30 minutes to see if they are still in contact
with each other.
V If you want to test whether you have reception then
press the button on the thermostat for more than
5 seconds. The thermostat will now send out a signal
continuously (The LED on the receiver flashes green
and the thermostat shows connecting in the display).
V The receiver will stay in this test mode until the
button on the thermostat is pressed.
V Raise and secure the DBA.
V Refit the boiler casing if necessary.
Buderus 500-24S - Subject to modifications resulting from technical improvements
fig. 32, item 1) and
fig. 32, item 2).
fig. 37). The wires are not
Fig. 36 Hang bracket under boiler
1
2
3
4
5
6
7
Fig. 37 Room thermostat connection on DBA
1, 2 Room Thermostat
3 HW Tank Sensor
5 24 VAC
6, 7 3-Way Valve
1
Installation
7215 3000-06.1TD
7215 3100-37.1TD
27