Question about Heating & Cooling
I have 3 wires in my junction box for the thermostat..wire A is from the panel,wire B goes to the heater and wire C goes from this junction box to another box in another room so i can put in another heater and thermostat..i need to know how the 3 wires are hooked up.
Mains wiring is dangerous and can kill you if you do not know what you are doing. For your safety I suggest you get a electrician to wire up your heaters.
Posted on Nov 29, 2012
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Posted on Jan 02, 2017
SOURCE: wireing three units together
yes, you did a good job. Sounds like you paralled them. Which is right buuuut what size are these heaters. Add the wattage of all of the heaters and divide by 120 and that is how much current you will be using. On a 20 amp breaker you can only pull 16 amps safely. I think you will be way over unless the heaters are 600 watts each. You are allowed 1800 watts on a 20 amp circuit.
Posted on Nov 06, 2008
DID YOU CONNECT TO TH SAME END YOU TOOK OUT WHEN PAINTING WE ARE DOWN TO THE CONNECTION @ THE HEATER MAKE SURE THE OTHER END OF TH ELEMENT IS CLOSED WITH WIRE NUTS AND TIGHT , LIKE I SAID WE ARE DOWN TO THE HEATER CONNECTIONS SO LOOK THERE
Posted on Dec 23, 2008
I am an electrician. You must measure the voltage across the black and red wires. Measuring each wire to the neutral will not cut it. If both your red and black wire are on the same phase the heater will not work.
To double check your wiring, measure the voltage across the two screws feeding your subpanel, they should be 240v or 208v depending on your power company. Then do the same at the breaker feeding your thermostat. Again it should read 240v.
If you have no potential across the screws it is possible that you installed an incorrect breaker. Not all breakers with two screws on them are 240v breakers. There is what is called a twin or split breaker that has two screws that are on the same phase. These are for wiring two 110v circuits, when you run out of spaces in the panel.
Double check everything. This is a relatively easy circuit to wire, even for homeowners. If the heater does not work them something is wrong so do not leave the circuit energized.
Posted on Mar 16, 2009
It sound alright but You should draw out a wiring diagram on paper first before you tackle the job that way you know you're doing it right.
Good luck Dickson
Posted on Nov 04, 2010
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