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Description

The ABB VC/S4.2.1 is used to control room heating and cooling applications with four independent channels, each containing an electronic valve output for controlling a thermoelectric valve drive. There are three inputs for detecting and monitoring the status of the room, with a feasible link of one analog room control unit (SAR/A or SAF/A) to each channel's inputs. Each channel includes its inbuilt room temperature controller for temperature management, which can be utilized to regulate the outputs directly.

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ABBVC/S4.2.1

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KNX Association KNX

The ABB VC/S4.2.1 is a 4-fold KNX control actuator for heating and cooling room applications.

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