Installation; Example Of Installation In The Appliance; Electrical Connections; Connecting A Three-Way Valve - Baxi SCB-17 User And Installation Manual

3 Installation

3.0 Example of installation in the appliance

To connect an SCB-17 on the boiler:

3.1 Electrical connections

Three-way valve connector – Circuit C
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.
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
Connect the three-way valve as follows:
Earth
N Neutral
Open
7
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.
(zone).