Solar & system controllers

System controller DeltaSol<sup>®</sup> SLT

System controller DeltaSol^® SLT

The DeltaSol^® SLT effortlessly controls even complex systems and enables adaptation to the individual system requirements. Numerous pre-programmed optional functions such as thermal disinfection or zone loading can be combined and parameterised. It is also possible to directly choose from 27 pre-programmed basic systems. The operation via 2 main buttons and 1 adjustment dial, the Lightwheel^®, follows the well-known operating concept. The manual mode and the holiday function can be activated by pressing a single button

Configurable compact-class controller

Article no.: 115 005 33 | Price bracket A | Price on request

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4 relay outputs (incl. 1 potential-free extra-low voltage relay)
4 inputs for Pt1000 or Pt500 temperature sensors
Input for 1 analogue Grundfos Direct Sensor™
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
Numerous pre-programmed optional functions
27 basic system layouts to choose from
Automatic function control according to VDI 2169
MicroSD card slot, LAN interface (optional), mini-USB port
Data logging, easy transfer of controller adjustments prepared and firmware updates via SD card

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:

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:

Relay outputs in total:

■ semiconductor relays (speed control):

3 (3)

■ 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:

VBus^®, MicroSD card, LAN (optional)

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:

Heating circuit antifreeze function:

Chimney sweeper function for the heating circuit:

Room thermostats:

⁴ via convertible impulse inputs

Inputs: 4 inputs for Pt1000 or Pt500 temperature sensors, 1 analogue 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 potential-free 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= (potential-free 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
1.43 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 interface (optional), mini- USB port
VBus^® current supply: 60 mA
Functions: operating hours counter, tube collector function, zone loading, heat exchange, 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: Full graphic display, control lamp (Lightwheel^®)
Operation: 4 push buttons and 1 adjustment dial (Lightwheel^®)
Ingress protection: IP 20 / EN 60529
Protection class: I
Ambient temperature: 0 ... 40 °C
Pollution degree: 2
Dimensions: 110 x 166 x 47 mm