DeltaTherm® FK Solid fuel boiler controller

The DeltaTherm® FK Solid fuel boiler controller has been especially developed for systems with solid fuel boilers, water heating stoves or pellet stove heating systems. With the integrated PWM outputs, the DeltaTherm® FK can manage the speed control of 2 high-efficiency pumps. With its easily configurable optional functions, the versatile software allows e. g. for the control of an electronic mixer for the return mixing function, a thermostatic backup heating, a target temperature control function and many more.

  • 2 relay outputs, 4 temperature sensor inputs
  • 2 PWM outputs for the speed control of high-efficiency pumps
  • Control of an electronic mixer for the return mixing function
  • Heating backup
  • Heat exchange function
  • Thermostatic backup heating

Inputs: 4 Pt1000 temperature sensors
Outputs: 2 semiconductor relays, 2 PWM outputs
PWM frequency: 1000 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: 0.46 W
Mode of operation: type 1.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®
VBus® current supply: 35 mA
Functions: minimum and maximum temperature limitation, mixer control for the return mixing function, target temperature control, speed control, heating circuit backup, thermostatic backup heating, heat exchange, PWM pump control, operating hours counter
Housing: plastic, Pc-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication/Display: full graphic display
Operation: 3 push buttons at the front of the housing
Ingress protection: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 172 x 110 x 46 mm

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