Solid fuel boiler controller FK, with three sensors

• For solid fuel boiler
• For standard and high-efficiency recirculation pumps with PWM signal
• With 4 inputs and 2 outputs

The solid fuel boiler controller FK has been specially developed for systems with solid fuel boilers, water-fired stoves or pellet heaters. Thanks to the integrated PWM outputs, it can control two high-efficiency pumps in a speed-controlled manner.
With easily configurable options, the versatile software allows, for example, the control of an electronic mixer for backflow mixing, thermostatic post-heating, a target temperature control and much more.

Technical data:
• Inputs: 4 sensor inputs PT1000
• Outputs: 2 semi-conductor relays, 2 PWM outputs
• Data output: RESOL VBus®
• Power supply: 100–240 V, 50–60 Hz
• Standby-power consumption: <1 W
• switching capacity: 1 (1) A 240 V AC semiconductor relay
• Total switching capacity: 2 A 240 V
• Dimensions (L x W x H): 172 x 110 x 46 mm

Delivery contents:
• 1x controller FK
• 3 sensors PT1000 (2x storage / boiler sensor FRP6, 1x collector sensor FKP6)

Functions:
• Minimum and maximum temperature limitation
• Mixer control for return flow mixing
• Target temperature regulation
• Speed regulation
• Return flow boost (heating circuit backup)
• Thermostatic reheating
• Heat transfer
• PWM pump control