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Byron doorbell

  • 02-05-2008 8:26pm
    #1
    Abi
    Closed Accounts Posts: 22,058 ✭✭✭✭


    Hi all - need some advice on getting the doorbell sorted.

    I recently bought a seperate Byron doorbell bits from B&Q.
    Their pre-packed versions can be a bit ugly tbh. So I went by the instructions of which types of push button I could choose and bell unit etc.

    My house was already rigged up wire-wise, so I thought it would be handy enough to do it, at least my Dad anyway ;)

    He seemed to think that electricity shouldnt always be running through to the bell unit, that it should only happen when the bell is pressed.

    I, on the other hand thought it always is, and a surge is sent to the bell unit when the button is pressed. After a bit of tricking around, he announced the bell unit was blown/fucked.

    I've gotten a replacement. Any tips or insights to avoid the same happening? :o


Comments

  • #2
    Stoner
    Registered Users, Registered Users 2 Posts: 10,952 ✭✭✭✭Stoner


    these are 12Volt units, the transformer is powered up 24/7 at the 230Vac end, there are no surges involved just a 12V circuit

    On the low voltage only two cables are needed.

    One goes directly from either connection on the 12Volt side of the traffo to the bell chime.
    The other cable goes from the other side of the 12Volt side of the traffo to the door bell button where it is connected to one of the two door bell button connections. the remaining door bell button connection is cabled back to the bell chime.

    When you press the button you complete the 12V circuit and energise an electromagnet

    regardless of what type of bell you have this will work, some work on the basis as shown below where current is required to energise the coil in the solenoid (striker) it will pop out and hit the chime, once you take your finger off the busser (remove current to the coil) the sping will shoot it back into the chime

    The older style of bell like you have uses the casing of the bell and the striker as part of a self interupting circuit.
    I can't explain it better then this.
    http://www.howstuffworks.com/doorbell2.htm

    This is one for a ding dong

    http://home.howstuffworks.com/doorbell3.htm

    either way the wiring method is the same. the 12V traffo being the most important thing of all
    and either way pressing the door bell sends current into the coil , energising it, when you take your finger off the bell, current to the coil will stop.

    I love that site :)

    BTW having a prewired house does not mean that you have a 12V transformer, you may still need one of these.

    I just read over your post and it occured to me that you may have actually have no traffo, I really hope that I am underestimating you here lol as a 12V bell with 230Vac flowing is very dangerous and will fry the bell and someone along with it.

    So if you are in anyway unsure about the whole transformer thing, please get an electrician and dont try this yourself.

    If I'm wrong then great, happy door bell ringing BTW your Dad was right


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