Baxi SCB-17, User And Installation Manual, Page: 7 / 304

7
3 Installation
3.0 Example of installation in the appliance
The SCB-17 boards can be installed directly on
the boiler. For installation and fixing:
•
Remove the control panel cover.
• Place the board/s as shown in the figure. Secure
them with the screws supplied with the accessory kit.
•
To connect the accessory board, use the L-BUS
CB4 e CB5 connectors on the boiler as described
below.
To connect an SCB-17 on the boiler:
• Remove the connector with L-BUS
terminating resistance (A) on the
connection board and place it on the L-
BUS connector of the SCB-17 (B) .
•
Connect the L-BUS cable from the
connections board (CB5) to the
accessory board and the 230V power
supply (if provided). Fix the accessories
card in the area provided on the front
panel of the boiler.
3.1 Electrical connections
Three-way valve connector
– Circuit C
3.1.1 Connecting a three-way valve
The three-way valve connector can be used to connect a three-way valve
(230 VAC) for mixing circuit (zone).
Connect the three-way valve as follows:
Earth
N Neutral
Open