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3 Mounting and installation [specialist]]
2021/11
991339002-mub-ml - V01
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3.4
Connection of the MB3.10 to the cascade
The MB3.10 is designed such that the power cable and the Modbus cables are already
connected to the module when it is delivered. Connect the MB3.10 via the Modbus cable to the
cascade of the domestic hot water modules (FC3.10) as well as to the Building Management
System (GLT/BMS).
To ensure a faultless communication, it is important to connect the client FC3.10 controller
(marked as "CL" on the image) of the cascade via Modbus cable via one of the RS 485
interfaces to the corresponding interface of the MB3.10. Also, the client must be connected to
the servers within the cascade.
The connection to the Building Management System (GLT/BMS) is carried out via the RS 485
interface (RJ12) via Modbus cable, as shown in the following image. The bus termination is
carried out by means of the jumpers, as shown on the image below. Also, make sure that the
jumpers are placed on the correct slots (see operation instructions of the FC3.10).
After that, configurate the MB3.10 via the client FC3.10 controller.
The configuration parameters are described in the operation instructions of the FC3.10
controller.