Recent content by bandit22

  1. B

    BDR91 wireless thermostat.

    Have just got this unit but my original unit (honeywell CM67) only has two wires coming from the combi boiler (Alpha CB50). By the diagram the BDR91 requires a 230V supply & my original wires should go to terminal A & B. I have two questions:1. can the 230V come from a seperate fused spur & 2...
  2. B

    Maximum PFC (domestic)

    Can anyone tell me if you are allowed PFC of 10kA on a domestic TNCS system with a Ze of 0.03 Cheers
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