Device description

The device is a modular installation device (MDRC) in proM design. It is designed for installation in electrical distribution boards and small housings with a 35 mm mounting rail (to EN 60715).

The device is KNX-certified and can be used as a product in a KNX system → EU declaration of conformity.

The device is powered via the bus (ABB i-bus® KNX) and requires no additional auxiliary voltage supply. The connection to the bus is made via a bus connection terminal on the front of the housing. The loads are connected to the outputs using screw terminals → terminal designation on the housing.

The software application Engineering Tool Software (ETS) is used for physical address assignment and parameterization.

Device functions

The following device functions are available for controlling a fan coil unit:

• Controller
• Actuator device

Controller

The internal controller is activated in the function as a controller unit. The controller is used to process the data received at the inputs (actual values) or via the bus (ABB i-bus® KNX) (actual values, setpoints and operating mode changes). The control values are calculated from the data received and transmitted to the outputs.

Actuator device

The internal controller is deactivated in the function as an actuator. The control values for activating the outputs are calculated by an external controller and received via the bus (ABB i-bus® KNX).

Connections

The devices possess the following connections, depending on the product variant:

• 4 inputs for sensors or an analog room control unit (SAF/A or SAR/A)
• 2 valve outputs for activating valve drives (FCC/S 1.4.1.1: 1 valve output)
• 1 fan output
• 1 relay output (FCC/S 1.4.1.1 : no relay output)
• 1 bus connection

The tables below provide an overview of the maximum number of devices that can be connected to the individual product variants.