Extension 2+3 HKMW2B

£526.80 inc VAT

Extension for 2nd and 3rd heating circuits.

PCB for installation in the Vitotronic 300-K, type MW2B for controlling two heating circuits with mixer:

  • With connections for mixer motors, flow temperature sensors (NTC 10 kOhm) and heating circuit pumps.
  • Plug for mixer motor and heating circuit pump for each heating circuit.
  • Complete with 7453971 2x Plgs 52 2x 20.
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