User-friendly controls for solar systems

SCU 124 control

For basic single-load solar systems.

DeltaSol BX control

For multi-load, east-west and commercial arrays.

Accessories

A number of VBus system accessories are compatible with the DeltaSol BX.

Solar Controls

Get the best performance from your solar system with the right control solution. Now choose from a full range of controls for every level of application!

Viessmann solar controls are capable of managing a wide variety of applications – from basic to very complex and give you the versatility and the power to meet the various system design requirements.

SCU 124 solar system control

The SCU 124 solar control is ideal for basic systems with two semiconductor relay outputs and four sensor inputs. The single-load SCU 124 control features three basic, preprogrammed system configurations for easy planning and installation.

DeltaSol BX solar system control

The DeltaSol BX is an advanced solar control for multi-load systems, east-west collector arrays and commercial solar systems. This advanced solar system control features four relay outputs and adjustable delta-T and time controlled thermostat functions for limitless configuration possibilities. The DeltaSol BX control is compatible with a number of system accessories designed for system monitoring, analytics and additional control.

Sample system layout

Vitosol solar collector
Solar-Divicon
V40 Flowmeter Kit
Temperature sensor
Vitocell solar tank
Motorized diverting valve
DeltaSol BX control

Product details

Number of relay outputs: 2 for SCU 124
4 for DeltaSol BX
Number of sensor inputs: 4 for SCU 124
5 for DeltaSol BX
Number of system configurations: 3 for SCU 124
26 for DeltaSol BX
Number of heat loads (tanks): 1 for SCU 124
2 for DeltaSol BX
Number of differentials: 1 for SCU 124
2 for DeltaSol BX
Internal SD card slot: Not available for SCU 124
Standard for DeltaSol BX (SD card is included)
Flowmeter option: Not available for SCU 124
Compatible with DeltaSol BX

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A perfect match – system technology

"The whole is greater than the sum of its parts." According to this philosophy, Viessmann does not just make individual heating equipment components that meet the high Viessmann standards for quality, reliability and effectiveness. Rather, all products are part of a matching concept, where all components complement one another.

Viessmann system technology includes everything you need for a reliable and economical heating system. The Vitotronic control unit with remote control, the powerful Vitocell DHW tanks for best DHW convenience, to high-quality solar thermal systems for cost-saving heating.

Smart home solutions

Solar Controls