Solar and system controllers Solar and system controllers

System controller DeltaSol® SLT (incl. LAN interface)

Menu languages:
  • 4 relay outputs (incl. 1 extra-low voltage relay)
  • 4 inputs for Pt1000 or Pt500 temperature sensors
  • Inputs for 1 analogue Grundfos Direct Sensor™ and 1 FlowRotor
  • 1 V40 impulse input (also usable as a Pt1000, Pt500 or KTY temperature sensor input)
  • 2 PWM outputs for the speed control of high-efficiency pumps
  • MicroSD card slot, LAN interface (optional), mini-USB port
  • Automatic function control according to VDI 2169
Numerous pre-programmed optional functions!
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System controller DeltaSol® SLT (incl. LAN interface)
Configurable compact-class controller
Article-no: 115 004 07 | Price bracket A

Solar controller DeltaSol® SLT - Full kit (incl. LAN interface)
Configurable compact-class controller incl. 4 Pt1000 sensors (2 x FKP6, 2 x FRP6)
Article-no: 115 004 17 | Price bracket A



The DeltaSol® SLT effortlessly controls even complex systems. 27 pre-configured system layouts with numerous pre-programmed optional functions such as thermal disinfection or zone loading enable adaptation to the individual system requirements. The operation via 2 main buttons and 1 adjustment dial, the Lightwheel®, still follows the well-known operating concept. The multicoloured LED, integrated in the Lightwheel®, offers many possibilites to signal different system states. The microSD card slot, the mini USB connection and the 2 microbuttons for quick access to the manual mode and the holiday function are located underneath the slidable housing cover, the SLider.

Max. number of collector fields:
2
Max. number of stores:
2
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 (54)
Sensor type:
Pt1000, Pt500, KTY
Inputs for Grundfos Direct Sensors™:
analogue
Input for CS10 irradiation sensor:
-
Impulse inputs for V40 flowmeter:
1
Relay outputs in total:
4
■ semiconductor relays (speed control):
3 (3)
■ 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:
2
Real-time clock:
Data interface:
VBus®, MicroSD card
Energy-efficient SMPS:
Power supply:
100 ... 240 V~

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

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:
solar, free selectable
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:
DHW heating:
Heating circuit return preheating:
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 analog Grundfos Direct Sensor™, 1 FlowRotor, 1 V40 impulse input (also usable as a Pt1000, Pt500 or KTY temperature sensor input)
Outputs: 3 semiconductor relays, 1 dry-contact extra-low voltage relay, 2 PWM outputs (switchable to 0-10 V)
PWM frequency: 512 Hz
PWM voltage: 10,8 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
1 (1) A 30 V= (dry-contact relay)
Total switching capacity: 3 A 240 V~
Power supply: 100 ... 240 V~ (50 ... 60 Hz)
Supply connection: type Y attachment
Standby:
0,68 W
1,32 W (LAN)
Temperature controls class: I
Energy efficiency contribution: 1 %
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2,5 kV
Data interface: RESOL VBus®, MicroSD card slot, LAN and mini USB connections
VBus® current supply: 60 mA
Functions: operating hours counter, evacuated tube collector function, zone loading, heat exchange, speed control, energy metering, adjustable system parameters and optional functions (menu-driven), balance and diagnostics function, function control according to VDI 2169
Housing: plastic, PC-ABS and PMMA
Installation: wall mounting, mounting into patch panels is possible
Indication/Display: full graphic display, Lightwheel® (adjustment dial) and background illumination
Operation: 4 push buttons at the front and 1 Lightwheel®
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C / 32 ... 104 °F
Pollution degree: 2
Dimensions: 110 x 166 x 47 mm / 4.33" × 6.53" × 1.85"
  4 via convertible impulse inputs

Flowmeter V40
V40-06
Article-no: 280 011 00 | A

Product photos

DeltaSol® SLT open (7702 kB)
DeltaSol® SLT (6090 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.

Customized and OEM versions are available on request. Please contact our sales team.
The cTUVus certification confirms that the controller is certified to UL 60730-1A and CSA E60730.1.
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.