DeltaSol Fresh®

DeltaSol Fresh®
– For manufacturers of DWH exchange modules –
RESOL offers a range of solutions for the control of DHW exchange modules. The new controller platform is equipped with an enhanced and faster control algorithm and enables the precise and energy-effi cient control of the draw-off temperature. In order to achieve the best possible control quality, our laboratories run a number of dimensioning tests and check measurements. Classification of control quality is conducted on the basis of research results of the Rapperswil Institute for Solar Technology and the Institute for Solar Energy Research in Hamelin (ISFH).


Constantly high control quality by adaptation to the end user system by means of self-learning neural networks
Customised control for systems with or without circulation
Flexible circulation function for different user profi les, also available with thermal disinfection
Reliable DHW heating even in the case of a fault condition
Control of PWM and LIN bus pumps
Adaptable to many commonly used flow rate sensors
Commissioning menu for easy confi guration
Clear system graphic in the status menu
Cascades of up to 6 DHW exchange controllers or stations

Inputs: 7 inputs for Pt1000 temperature sensors, 1 flow rate sensor: VBus®3 (e.g. digital Grundfos Direct Sensor ™) or 0-5 V interface or 0-500 Hz interface or impulse input
Outputs: 3 semiconductor relays and 3 PWM outputs (with LIN bus 1 PWM output), 1 potential-free extra-low voltage relay
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
1 (1) A 30 V = (potential-free relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: type Y attachment
Mode of operation: type 1.B.C.Y
Rated impulse voltage: 2,5 kV
Data interface: RESOL VBus®, cascade bus, LIN bus interface, MicroSD card slot
VBus® current supply: 60 mA
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: full graphic display, operating control LED (Lightwheel®)
Operation: 4 buttons, 1 adjustment dial (Lightwheel®)
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 110 x 166 x 47 mm

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