Solar & system controllers Solar & system controllers

Solar controller DeltaSol® CS Plus

Manuals available:
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  • For the speed control of high-efficiency pumps
  • Status display possible with a bidirectional HE pump (DeltaSol® CS Plus bidirectional)
  • Especially suited for solar pump stations (DeltaSol® CS Plus bidirectional)
  • 2 PWM feedback inputs (DeltaSol® CS Plus bidirectional)
  • 1 input for a VFD Grundfos Direct Sensor™
  • Heat quantity measurement
  • Commissioning menu
  • 10 basic system layouts to choose from
  • Function control
  • Optional thermal disinfection function
  • Drainback option
Heat quantity measurement with VFD Grundfos Direct Sensor™
rosenthal design

Solar controller DeltaSol® CS Plus
Incl. PWM adapter cable
Article-no: 115 003 13 | Price bracket A 289,00 €   Add to wish list

Solar controller DeltaSol® CS Plus - Full kit
Incl. 4 Pt1000 sensors (2 x FKP6, 2 x FRP6) and PWM adapter cable
Article-no: 115 003 03 | Price bracket A 331,90 €   Add to wish list

The DeltaSol® CS Plus has been especially developed for the speed control of high-efficiency pumps in standard solar and heating systems. It is equipped with two PWM outputs and an additional input for a VFD Grundfos Direct Sensor™ that enables a precise heat quantity measurement. The commissioning menu will lead you through the most important adjustments for the initial configuration in only eight steps.

Max. number of collector fields:
Max. number of stores:
Weather-compensated heating circuits:
External heat exchanger:
Speed control of standard pumps:
Speed control of HE pumps:
■ via integrated PWM output:
■ via PSW adapter:

Temperature sensor inputs:
Sensor type:
Inputs for Grundfos Direct Sensors™:
Input for CS10 irradiation sensor:
Impulse inputs for V40 flowmeter:
Relay outputs in total:
■ semiconductor relays (speed control):
2 (2)
■ electromechanical relay:
■ potential-free relay with changeover contact:
■ potential-free relay with normally open contact:
■ potential-free high-current relay:
PWM outputs:
■ convertible to 0-10 V:
Real-time clock:
Data interface:
Energy-efficient SMPS:
Power supply:
100 ... 240 V~

Heat quantity measurement
■ with flowmeter:
■ with V40 flowmeter:
■ with Grundfos Direct Sensors™:

Software functions
Antifreeze function for solar circuit:
Collector minimum limitation:
Collector emergency shutdown:
Store maximum limitation:
Store set temperature:
Store emergency shutdown:
Drainback option:
Tube collector function:
■ with adjustable time frame, interval:
Additional ΔT control:
Thermostat function:
Target temperature:
Heat dump function:
Heat exchange:
Store loading in layers:
Priority loading:
■ Parallel loading:
■ Store sequence control:
■ Progressive loading:
■ Successive loading:
■ Spreaded loading:
Solar circuit bypass:
Irradiation-dependent bypass:
Irradiation switch:
Afterheating suppression:
Parallel relay:
Twin pump for solar circuit:
Cooling functions and cooling mode:
Flow rate monitoring:
Pressure monitoring:
Function control:
Error relay:
DHW hygiene functions:
■ DVGW legionella protection:
■ Thermal disinfection:
DHW heating:
Heating circuit return preheating:
Boiler loading/Zone loading:
Solid fuel boiler:
Mixer control weather-compensated:
Mixer control with target temperature:
Function block:
Heating circuit antifreeze function:
Chimney sweeper function for the heating circuit:
Room thermostats:
Inputs: 4 Pt1000 temperature sensors, 1 VFD Grundfos Direct Sensor™, 2 PWM feedback inputs (DeltaSol® CS Plus bidirectional)
Outputs: 2 semiconductor relays, 2 PWM outputs
PWM frequency: 512 Hz
PWM voltage: 10.5 V
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
Total switching capacity: 2 A 240 V~
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Standby: 0,59 W (DeltaSol® CS Plus)
0,61 W (DeltaSol® CS Plus bidirectional)
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: type 1.c.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: function control, operating hours counter, tube collector function, thermostat function, speed control and heat quantity measurement
Housing: plastic, Pc-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display for visualisation of systems, 16-segment and 7-segment display, 8 symbols for indication of system status
Operation: 3 push buttons at the front of the housing
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C
Pollution degree: 2
Dimensions: 172 x 110 x 46 mm
  1 system-dependent

SP10 Overvoltage protection
Sensor-overvoltage protection
Article-no: 180 110 70 | A         17,50€  Add to wish list
Moisture-proof housing
(without controller)
Article-no: 290 028 70 | B         88,00€  Add to wish list
VBus®/USB interface adapter
PC-connection set for RESOL controller with VBus®, with software RSC
Article-no: 180 008 50 | B         58,90€  Add to wish list
AM1 Alarm module
Alarm module for signalling system failures
Article-no: 180 008 70 | B         67,00€  Add to wish list
The Internet portal for easy and secure access to your system data
Article-no: 000 000 00         Add to wish list

Product photos

DeltaSol® CS Plus (5970 kB)

Please note that RESOL – Elektronische Regelungen GmbH owns the sole copyright on objects, documents, graphics, pictures, audio and video documents, texts, etc. published and created by RESOL – Elektronische Regelungen GmbH. Copying, distribution to third parties, changing the contents or using these contents in electronic or printed publications is not permitted without the explicit approval of RESOL.

Customised and OEM versions are available on request. Please contact our sales team. A PWM adapter cable is included with the controller
The cTuVUS certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-2-9 and CSA - E60730-2-9-01 standards.
The cLCus certification confirms that the controller meets the demands of the UL 60730-1A and CSA E60730.1 standards.