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moriak 11-01-2012 11:53 PM

Baseboard Heater not turning on
 
Hi, I'm installing a couple of linear convector heaters (Dimplex 750W 240v). I have two 120v lines, one which is connected to a power outlet, and the other one from another convector heater (as far as I've been able to evaluate, this second line is not connected to a thermostat).

I'm extending these lines and plugging them to the heaters as the instructions specify (including the ground cables). I've tested all the lines with an amperemeter and each one of them lights up with 120v; however, the heaters do not light up, even when I am not breaking any of the lines with a thermostat.

If I replace one of the lines with an N, I get the heater on using only 120. But when having the two it doesnt. Any ideas on what might be happening?

frenchelectrican 11-01-2012 11:59 PM

Quote:

Originally Posted by moriak (Post 1042931)
Hi, I'm installing a couple of linear convector heaters (Dimplex 750W 240v). I have two 120v lines, one which is connected to a power outlet, and the other one from another convector heater (as far as I've been able to evaluate, this second line is not connected to a thermostat).

What colour the conductor you did see in there ?? that will make the differnce on it runs.


I'm extending these lines and plugging them to the heaters as the instructions specify (including the ground cables). I've tested all the lines with an amperemeter and each one of them lights up with 120v; however, the heaters do not light up, even when I am not breaking any of the lines with a thermostat.

If I replace one of the lines with an N, I get the heater on using only 120. But when having the two it doesnt. Any ideas on what might be happening?

If you are using one receptale for 120 volts and you will not able get full 240 volts if you do not have full 4 conductors in there that is the key issue and second thing normally all the 240 volts heaters I ran into in stateside normally are wired seperated from conventail 120 volt circuit so take a peek at your breaker panel to see if that is hooked up properly.

Merci,
Marc

Doc Holliday 11-02-2012 12:03 AM

Are you getting 240 across both legs where you're wiring them in?

Doc Holliday 11-02-2012 12:04 AM

What's up frenchy? Long time no talk to. How's the electrical world treating you?

Roadhouse.

frenchelectrican 11-02-2012 12:06 AM

Quote:

Originally Posted by Doc Holliday (Post 1042941)
What's up frenchy? Long time no talk to. How's the electrical world treating you?

Roadhouse.

Yeah have not see ya for a while but been very busy over here ( in France ) there were few days were nutty with working overtime.

Merci,
Marc

Doc Holliday 11-02-2012 12:07 AM

Works slow down here but getting by. I'll post up on the electrical site soon.

moriak 11-02-2012 12:13 AM

Quote:

Originally Posted by Doc Holliday (Post 1042939)
Are you getting 240 across both legs where you're wiring them in?

How do I check for this?


What colour the conductor you did see in there ?? that will make the differnce on it runs.

One line is red, the other one is black. Checking in the box, they come from separate lines.

Thanks for the quick reply !

frenchelectrican 11-02-2012 12:18 AM

Quote:

Originally Posted by moriak (Post 1042948)
How do I check for this?


What colour the conductor you did see in there ?? that will make the differnce on it runs.

One line is red, the other one is black. Checking in the box, they come from separate lines.

Thanks for the quick reply !

Ok did you look at the breaker box to see if you have double pole breaker in there ??

It should be in there.

What else is on that circuit beside the receptale you did work on?

I think it was used to be oringally 240 volt circuit and someone coverted to 120 volts but to get switched back to 240 volts will be little more tricky so you will have two choices either ditch that 120 volt receptale and reconferated the circuit to full 240 volts otherwise run the heater on new circuit so that is two way you can do it.

I will not use the receptale with the heater circuit it can get funky with it.

Merci,
Marc

Doc Holliday 11-02-2012 12:20 AM

From one wire to the other when both hot you should see 240 volts.

AllanJ 11-02-2012 05:53 AM

OT: You may not take the two hots needed for a 240 volt heater, appliance, etc. from two different places. (Both conductors must come from the same cable or conduit and be on the same 240 volt or 120/240 volt branch circuit.)

For a 120 volt light, appliance, etc. you may not use a neutral that did not accompany the hot (same cable or conduit, same branch circuit).

moriak 11-08-2012 11:04 PM

Quote:

Originally Posted by AllanJ (Post 1043038)
OT: You may not take the two hots needed for a 240 volt heater, appliance, etc. from two different places. (Both conductors must come from the same cable or conduit and be on the same 240 volt or 120/240 volt branch circuit.)

For a 120 volt light, appliance, etc. you may not use a neutral that did not accompany the hot (same cable or conduit, same branch circuit).

Thanks AllanJ, that was exactly what was wrong. I made some bad assumptions taking two different lines from a different circuit.

Cheers!


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