Buderus 600 - 11S Installation And Servicing Instructions page 20

1 Installation
1.10.3 Potential free room-temperature control device
connection
Loosen crosshead screw (fig. 18, item 1) on burner-control
unit (UBA).
Swivel burner-control unit downwards.
Open the back of the burner-control unit to the right
(fig. 19).
Connect the potential free room-temperature control
device at fig. 21, item 1.
1.10.4 24 Volt radio frequency room-temperature control
device connection
Loosen crosshead screw (fig. 18, item 1) on burner-control
unit (UBA).
Swivel burner-control unit downwards.
Open the back of the burner-control unit to the right
(fig. 19).
Connect the 24 Volt radio frequency room-temperature
control device at fig. 22, item 1.
1.10.5 Other connections
Connection of an external water tank for single devices
600 - 11S/19S/24S:
Remove bridge (fig. 23, item 1).
Connect sensor for external water tank.
Connection for a second propane solenoid valve:
Connect switch unit for a second solenoid valve
(accessory) at green plug (fig. 23, item 2).
Connection of a modulating pump:
Connect modulating pump (accessory) at plug (fig. 23,
item 3).
Connection of an external switch contact for underfloor
heating system:
Open plug (fig. 23, item 4) connection.
Connect underfloor heating header thermostat (volt free)
and in series.
Subject to modifications resulting from technical improvements!
20 Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 05/2004
Fig. 21 Connection box in burner-control unit - potential free
connection
Fig. 22 Connection box in burner-control unit - 24 Volt
connection
1
Fig. 23 Other connections
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
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