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Optimisation variant 2b: Blind control for optimised climate control

Concerning the question of energy efficiency in buildings, blind control also plays an important role with regard to climate control. An intelligent blind control system has an optimising effect on building climate control and supports the user in a conservative and cost-optimised energy usage. The best results are achieved by networking the blind control with the systems for room climate control.

Closing the blinds on the facades of the building on which the sun is shining in summer, can prevent the rooms from heating up – saving energy that would be needed to cool the working areas. In winter the opposite is true. Here it is useful to capture as much solar heat as possible in the rooms – this saves energy when heating rooms. In both cases it is necessary to balance the “climate control” of the blinds with the presence of people in a room. As long as someone is working in a room, the light-dependent blind control should have priority, particularly with PC workstations, but also in schools or conference rooms. All ABB i-bus® KNX blind actuators feature a heating/cooling automatic as standard for climate control of the blinds. For optimisation of the usage of daylight, an additional Shutter Control Unit JSB/S can be used. As is evident in the study from the Biberach University of Applied Sciences (see page 8), a climate control involving the blinds reduces the electrical energy required by the air conditioning system by up to 30 %.

Optimisation variant 2b

KNX

Switch/Dim

Blind-

Shutter

Actuator SD/S

Actuator

Control Unit

JA/S

JSB/S

Presence Detector PM/A

Ballast

Ballast

Blind

Blind

1 –10 V

1 –10 V

motor

motor

Manual light and blind operation US/U

2CDC 500 060 M0201 17

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