Solar & system controllers Solar & system controllers

Solar controller DeltaSol® SLL

Manuals available:
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  • Microbuttons for quick access to the manual mode and the holiday function
  • 3 relay outputs (incl. 1 potential-free extra-low voltage relay)
  • 4 inputs for Pt1000, Pt500 or KTY temperature sensors
  • 1 V40 impulse input
  • 2 PWM outputs for the speed control of high-efficiency pumps
  • 10 basic system layouts to choose from
  • Automatic function control according to VDI 2169
Versatile and easy to operate!
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Solar controller DeltaSol® SLL

Article-no: 115 431 53 | Price bracket A 277,40 €   Add to wish list

Solar controller DeltaSol® SLL – Full kit
Incl. 3 Pt1000 sensors (1 x FKP6, 2 x FRP6)
Article-no: 115 431 63 | Price bracket A 308,40 €   Add to wish list

VBus
The number of VBus® accessories that can be connected to one controller depends on the sum of their current consumption and on the current supply of the controller VBus®.
Device Maximum current consumption
VBus®/PWM interface adapter 6,5 mA
VBus®/USB interface adapter 6,5 mA
VBus®/LAN interface adapter 6,5 mA
Datalogger DL2 1,5 mA
Datalogger DL3 VBus® 1-5: 10 mA
VBus® 6: 0.5 mA
KM1 Communication module 1,5 mA
Smart Display SDFK 25 mA
Smart Display SD3 17,5 mA
GA3 Large Display 1 mA
AM1 alarm module 16,5 mA
HKM3 1 mA
EM/EM HP 1 mA
STA-W 12 mA
WMZ 35 mA
WMZ G1 35 mA


The VBus®-Repeater amplifies the VBus® signal of a controller and supplies a current of 200 mA in total to modules connected.






The DeltaSol® SLL is the smallest controller of the SL series. Its equipment is optimised for small and medium-sized solar thermal and heating systems, 10 pre-configured basic systems are available. The DeltaSol® SLL is also the first controller of its category to offer the automatic function control according to the VDI 2169 directive. Additionally, it is equipped with a potential-free extra-low voltage relay for backup heating demand and a V40 flowmeter input for heat quantity measurement.

Max. number of collector fields:
21
Max. number of stores:
21
Weather-compensated heating circuits:
-
External heat exchanger:
-
Speed control of standard pumps:
Speed control of HE pumps:
■ via integrated PWM output:
■ via PSW adapter:
-

Hardware
Temperature sensor inputs:
4
Sensor type:
Pt1000, Pt500, KTY
Inputs for Grundfos Direct Sensors™:
-
Input for CS10 irradiation sensor:
-
Impulse inputs for V40 flowmeter:
1
Relay outputs in total:
3
■ semiconductor relays (speed control):
2 (2)
■ electromechanical relay:
-
■ potential-free relay with changeover contact:
-
■ potential-free relay with normally open contact:
1
■ potential-free high-current relay:
-
PWM outputs:
2
■ convertible to 0-10 V:
-
Real-time clock:
Data interface:
VBus®
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:
1
Target temperature:
-
Heat dump function:
1
Heat exchange:
1
Store loading in layers:
1
Priority loading:
1
■ Parallel loading:
1
■ Store sequence control:
1
■ Progressive loading:
1
■ Successive loading:
1
■ Spreaded loading:
1
Solar circuit bypass:
-
Irradiation-dependent bypass:
-
Irradiation switch:
-
Afterheating suppression:
Parallel relay:
solar
Twin pump for solar circuit:
-
Cooling functions and cooling mode:
Flow rate monitoring:
-
Pressure monitoring:
-
Function control:
VDI 2169
Error relay:
-
DHW hygiene functions:
■ DVGW legionella protection:
-
■ Thermal disinfection:
1
DHW heating:
Heating circuit return preheating:
1
Boiler loading/Zone loading:
-
Solid fuel boiler:
Mixer control weather-compensated:
-
Mixer control with target temperature:
-
Circulation:
-
Function block:
-
Heating circuit antifreeze function:
-
Chimney sweeper function for the heating circuit:
-
Room thermostats:
-
Inputs: 4 inputs for Pt1000, Pt500 or KTY temperature sensors, 1 V40 impulse input
Outputs: 2 semiconductor relays, 1 potential-free extra-low voltage relay, 2 PWM outputs
PWM frequency: 1000 Hz
PWM voltage: 10.5 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
1 (1) A 30 V= (potential-free relay)
Total switching capacity: 2 A 240 V~
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: Y
Standby: 0.66 W
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: Typ 1.B.C.Y
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 60 mA
Functions: operating hours counter, tube collector function, thermostat function, pump speed control, heat quantity measurement, adjustable system parameters and optional functions (menu-driven), balance and diagnostics function, function control according to VDI 2169
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: System-Monitoring-Display for system visualisation, 16-segment-display, 8 symbols for indication of the system status, control lamp (Lightwheel®)
Operation: 4 push buttons and 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
  1 system-dependent

SP10 Overvoltage protection
Sensor-overvoltage protection
Article-no: 180 110 70 | A         17,50€  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
VBus.net
The Internet portal for easy and secure access to your system data
Article-no: 000 000 00         Add to wish list
V40 Flowmeter
V40-06
Article-no: 280 011 00 | A         166,00€  Add to wish list

Product photos

DeltaSol® SLL (6448 kB)
DeltaSol® SLL open (19651 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.
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.