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Installation
1.10.1 External controls
The wall-mounted condensing gas combi boiler can be fitted
with the following external controls.
– a ModuLink 250 RF (see subsection 1.10.2) or other
recommended Boulter Buderus 24V controls;
– a room-temperature control device at 230V connected to
the rth-converter (see subsection 1.10.3);
– or an ON/OFF temperature controller, volt free
(see subsection 1.10.4).
1.10.2 ModuLink 250 RF connection
The ModuLink 250 RF thermostat modulates on room
temperature.
The Boulter Buderus boilers work most efficient with Boulter
Buderus thermostats. Therefore these thermostats are recom-
mended by Boulter Buderus.
NOTE
See the instructions of the other Boulter
Buderus thermostats for installation instruc-
tions.
Receiver bracket installation
NOTE
The receiver is not waterproof. Avoid water
coming into contact with the receiver when
servicing the boiler.
Remove the casing of the receiver (fig. 25, item 1).
Connect the thermostat's cable (supplied with the
thermostat) to the receiver (fig. 26).
Refit the casing (fig. 26, item 1).
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for Buderus 500 - 24/C and 500 - 28/C • 02/2005
1
fig. 25 Receiver bracket
1
fig. 26 Connect cable
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
1
230V
23
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