hi guys, how to install door bell? i bought a doorbell from lighting shop and need to install myself to the wall. in front of entrance door. got wiring provided at the wall already, i just have to connect the wiring to the door bell transformer kind of stuff. any idea how? the picture showing that the wire come out from wall got 4 colour (which is red, black, blue and green, refer to picture for self-explanatory), and got 4 location can fix at the doorbell transformer. which wire to which hole? kindly enlighten me.

and also will i get shock if touch the wire?

Thank you.


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LOL

get a wireman to help you for goodnes sake

last time online purchase a wired doorbell (not wireless) 1. turn out that it's DC hence cannot use. so now buy AC type. so must be work.

previous thread here: https://forum.lowyat.net/index.php?showtopic=3204283&hl=

why didnt u just get a wireless door bell instead and save from the wiring hassle?


anyway, it'ss 1 neutral, 1 earth, and 2 live - 1 of them is common

whatever you do.. Use test-pen to test all wiring (all green/red/black wiring). Make sure no current before do anything.. Your wiring maybe messed up by previous wiring man..

ohh, because the condo i'm staying already have a doorbell point. existing wiring come out from wall. so just fully utilize it. outside also already have a press button. just that without the chime.

no mess up, it is a new condo.

https://forum.lowyat.net/topic/3055171/all

If you know nothing about electricity, it is strongly adviced that you do not DIY. There is a chance of injury and death, while you're fiddling. And if you install it wrong, to the people who use your door bell.

you just need to find out which 1 is L and N ....

normally Red and Black .... and do check the polarity at the door bell ... for suis no need ... check with multimeter if you have 1 ....

Try. If no fireworks then u are good to go.

4 wire door bells not connected like that.

That's for 2 wire door bells.

any model number? wiring diagram?

this is the diagram


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ic, there is 4 connectors at the chime. will study through the link u given and see if i understand. no idea which colour to which connector?

I think i get it. Those 3 cable bundled together are Blue = Live, Black = Neutral and Green = Earth. Take a test pen and check if there is any voltage coming from the RED wire. If the test pen light up, dont do anything. If the test pen light doesnt light up, screw it on the E1 and E2 terminal. Blue and Black wire goes to the terminal down there marked with <AC 230V>. Green cable, screw it on the metal part of your doorbell. About the red cable, the best is to check for voltage first, if there is no voltage, separate them and do continuity test on them by using multimeter. Put the multimeter tester pin on each of the red cable, and press the door bell switch. If the meter goes up when you press it, then its confirmed the RED cable is the switch wire. If you wanna do them, turn of the main breaker before doing the work, thats because of the "loop" at the 3 cables bundled together with the connecter. If you somehow cut the Neutral that is from some other source, if might electrocute you. So be careful of the broken neutral . Its more dangerous then the Live wire because you cant see it coming

deejay_krish

each colour of wire come in 1 pair. mean total got 8 wire. need to utilize 8 wires?

Red wire to E1 and E2. 2 Blue goes into 1 terminal marked AC 230V. 2 Black goes into ANOTHER terminal marked AC 230V. Green goes to metal parts of your doorbell unit, or screw it into the designated earth terminal screw if there is any.

Aisey, every doorbell comes with installation diagram leh. Just follow the diagram.

The usual will be :

2 cables for incoming 240v supply.
2 cables running to the switch and from the bell to connect and activate the bell. So u push the switch, shorting both cables activates the bell and ting tong loh

Kaotim.

This post has been edited by deejay_krish: Oct 5 2014, 06:40 PM

U dont really have to bother bout the green as its a bell device, not electronic device that requires earthing. So he can cut off the green and roll it aside.

ya, but how when come to colour of cable? 1 red to E1, 1 red to E2, 2 blue to terminal marked AC 230V, 2 black to another terminal marked 230V? do i have to switch of main switch in db b4 do this?

ok, will try. have to turn off main switch at db b4 do that? (mean entire home no electricity)

E1 and E2 is the red cables which is the switch of the bell. Power supply 240v is the blue and black. If thats how they wired your house lah. Neither way, best to get a multimeter to check which is the voltage. Dont assume, u might blow up the unit and black out. U dont have to turn off ur entire house supply but if u have no meter to test, then thats the only option. Buy a multimeter and keep, it will be useful in many ways for u in future

Real case...my house got a wiremen to install my doorbell...it blew up because of wrong connection.... apprently the boss ask a newbie wiremen.

The boss replaced the doorbell and install himself.

ohh. use test pen check whether got light mean got voltage right? still if know got voltage u still need to switch off main switch? since we can't contact v copper wire?

by the way, blue and black can be in either terminal?

Yes blue and black can be in either terminal. Same goes to red. Test pen can only test for live wire, neutral u cant test. Thats why u need a meter.

ohh, noted. I use test pen just now. red wire the test pen will light up. the rest no light up. so I should switch off main switch in db, then 1 red to E1 and the other red go to E2, then 2 blue go AC terminal, 2 black go another AC terminal.

then switch on main switch and press bell. kaboom?

go open up the switch for the doorbell outside your house and see what color of the wire it's connected to..

ohh, good idea mang.

ok, so it was blue!!! so it is not red wire the switch wire that suppose to fix into E1 and E2. almost kaboom my house



This post has been edited by iwubpreve: Oct 7 2014, 06:59 PM


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so what is next course of action?
infrasonic Erza Scarlet deejay_krish

Exactly why i wondered why your live and neutral diff color. Usually live and neutral is red and black. So hook the blue to the switch, red and black to the incoming power. Boom. Done.

If ure too worried, test the black and red to a light bulb. See if it works. If it works, then thats the correct power cables loh

connect as below




at the doorbell thr see if got write which one neutral which one live or not, live connect red, neutral connect black



This post has been edited by infrasonic: Oct 7 2014, 07:45 PM

infrasonic Erza Scarlet deejay_krish infrasonic

the work very simple. done already. please refer to video below
however the wire very messy, need trim the wire so the cover can fit in.

Thanks bros

Yea nice. I was about to help answer but its all done. Welldone kopitiam electricians.

haha

just about to reply.

how much you bought ?

RM39 from cima lighting

yeah, there were helpful

okay.

mine bout at rm38 jalan klang lama electric shop.

the whole package about 1kg, very heavy doorbell

yeah, it's heavy coz it's a transformer inside

Does anyone know if i want to remove the door bell,
how should I handle the wires coming out from the wall? How should I connect them? This is for condo unit.
Thanks in advance.

unscrew it, then the cable also unscrew and put it back to connector ok already.