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Towerstat RF wiring

Discussion in 'Plumbing and Central Heating' started by Nijinski001, 18 Jul 2006.

  1. Nijinski001

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    Guys

    I'm not a CH expert but I am part Pd.
    I need some help with the wiring on a Towerstat RF Thermostat.

    At the moment the boiler (Baxi Combi) has no roomstat, only a fused switch for on and off and an integral time clock.

    The wiring in the boiler has 5 terminals. 1. Live, 2. Neutral and 3. Earth 4. Live for the CH and 5. switched live for the CH. At the moment 4&5 are bridged to enable the manual CH switch on the front of the boiler.

    The Towerstat has two options. 230v and volt free.

    230v - Live, Neutral, SL (on) and SL (Off)

    Volt Free - Live, Neutral, NC (Normally Closed), COM (Volt free feed) and NO (Switched live.)

    Do I wire the common and neutral from the CH live in the boiler? Do I take the neutral from terminal 2 (above)?
    If this is yes I will need 3 core and earth, correct?

    Which is the best option for wiring this and any tips you can give me would be welcomed?
     
  2. doitall

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    I'm sure the guys and gals will want to know what model baxi boiler. :eek:
     
  3. Nijinski001

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    They all look the same to me.........!

    Only joking........ Baxi Combi 105HE
     

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