Boulter Buderus Benchmark 600-28C Installation And Servicing Instruction page 19

Installation
Connect a Buderus modulating room thermostat (
Buderus RC) to the RCC connection box (see fig. 24,
item 1).
Replace the cover of the connection box and secure with
the screw.
1.10.5 Other connections
Room control converter
The room control converter is connected to this
position.
1-2 green
Do not use this connection.
3-4 orange
Connection of an external switch contact for underfloor
heating system
When this connection is in use for the safety of
for example an underfloor heating system, then
an "8Y" code is generated when the switch
connection is open, the boiler will shut down.
5-6 red
External temperature sensor
When a Buderus modulating room temperature
controller is installed which is used as an
external temperature controller, then the
external temperature sensor may be connected
7-8 blue
to this position.
Do not use this connection.
Do not use this connection.
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 28C • 01/2004
i
RT or
fig. 24 RCC connection box
fig. 25 Connection box
1-2 5-6 9-10
3-4 7-8 11-12-13
ModuLine RCC
Boulter Buderus Ltd. • http://www.boulter-boilers.com
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1
14-15
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