DeltaTherm® HC Heating controller

The heating controller can control a weather-compensated heating circuit, the DHW loading and the backup heating demand for both. With up to five extension modules, further heating circuits, additional DHW functions such as circulation or thermal disinfection, and the efficient implementation of further heat sources can be controlled. Due to the flexible application and extension possibilities, the heating controller is also ideal for larger objects such as apartment houses, residential homes, and industrial buildings.


9 pre-configured basic systems and pre-programmed optional functions
30 pre-programmed schemes for the temperature controls classes II, III, V, VI, VII and VIII
Up to 5 EM extension modules can be connected via the RESOL VBus® (39 sensors and 30 relays in total), up to 6 mixed heating circuits
2 inputs for digital Grundfos Direct Sensors™
Screed drying function
Data logging, storing, easy transfer of controller adjustments prepared and firmware updates via SD card
Modulating heating control with 0-10 V boiler control
Weather-compensated control with room influence or demand-based room control with up to 5 room temperature sensors
Remote access with a room control unit or the VBus®Touch HC App

Inputs: 8 (9) inputs for Pt1000 or KTY temperature sensors, 1 V40 impulse input, inputs for 2 digital Grundfos Direct Sensors™, 1 input for a CS10 irradiation sensor
Outputs: 4 semiconductor relays, 1 potential-free relay, 2 PWM outputs
PWM frequency: 512 Hz
PWM voltage: 10.5 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
4 (1) A 240 V~ (potential-free relay)
4 (1) A 24 V DC (potential-free relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: type Y attachment
Standby: 0.94 W
Temperature controls class: VIII
Energy efficiency contribution: 5 %
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®, SD card slot
VBus® current supply: 60 mA
Functions: controller for DHW and heating systems. Functions such as: Weather-compensated heating circuit control, backup heating, DHW heating with priority logic, circulation, thermal disinfection, heat quantity measurement, optional functions such as solid fuel boiler, return preheating, etc.
Housing: Plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: full graphic display, control lamp (directional pad) and background illumination
Operation: 7 push buttons at the front
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 50 °C
Pollution degree: 2
Dimensions: 198 x 170 x 43 mm

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