Buderus 600 - 11S Installation And Servicing Instructions page 59

Servicing
5.3.28 Checking connections at the ModuLine
Check contact link between cable and ModuLine.
There should be a DC voltage of approx. 11.5 V at the
ModuLine.
NOTE
It is possible, in order to limit the source of
errors, to disconnect the ModuLine from the
boiler (bridge required at 3 and 4) and to install
a conductor bridge at 1 and 2 (fig. 87).
The heating and hot-water requirement is then
passed via the potentiometer setting of the
UBA.
5.3.29 Checking KIM connections
Locate KIM on boiler frame under UBA housing.
Check 4 pin connector (fig. 88, item 1) is fitted and secure.
NOTE
This is not a serviceable part and any fault
identified with this component, contact Boulter
Buderus.
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 05/2004
Fig. 87 Checking the controller-device connections at the
boiler
Key to control-device connections:
Item 1: ON/OFF temperature controller
Item 2: ModuLine room temperature controller (digital)
Item 3: I/O port / communication port
Item 4: Outdoor-temperature sensor
Item 5: Power supply 24 VAC/max. 6 VA
Item 6: Turn-on voltage for three-way valve (9+11)
1
Fig. 88 KIM connections
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
5
1
2
3
4
5
6
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