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Old 09-20-2010, 05:50 PM   #1
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Wall Heater grounding wire


My old baseboard is 240 Volts. It was hooked up to 240 volt with only a black and a white wire. My new heater has one black , white and a green grounding wire. Where should I hook up the ground to?
Thank you.
Michael

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Old 09-20-2010, 06:28 PM   #2
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Wall Heater grounding wire


should be a green ground screw some where near where cable goes in.

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Old 09-20-2010, 06:42 PM   #3
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Wall Heater grounding wire


What is the wiring method used?
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Old 09-20-2010, 08:23 PM   #4
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Wall Heater grounding wire


There is probably a bare wire accompanying the white and black wires to which the heater is now connected. Connect the green wire to that bare wire.
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Old 09-20-2010, 08:26 PM   #5
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Wall Heater grounding wire


Just give you a head up some baseboard electric heaters some of them will have one ground conductor at one locations and some models will have moveable ground conductor.

So if you open up one end and not see the grounding conductor open up the other end and you will see it I know I have ran into like that quite few time.

Merci.
Marc
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Old 09-20-2010, 08:46 PM   #6
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Wall Heater grounding wire


Quote:
Originally Posted by Speedy Petey View Post
What is the wiring method used?
"Wiring Method used"
I copied the same wiring method as in the old the unit; Black to Black White to White and the Green which is ground I connected to a screw on the bracket for heater. This screw is long enough to be grounded on the cement wall.
As of now, I have hooked up the heater unit "Garrisson" form Canadian Tire. It works well so far.
As for the grounding wire, am I correct to assume that as long as it is grounded means connected to the ground?
I have two more old baseboard heaters to be replaced
Thank you again.

There is a green grounding wore from the heater but there is no grounding wire from the power supply end. It is just two pieces of wire one black and one white.

There is no bare wire from the power supply end.
So I just srew the ground wire from the heater to the ground.

This one comes with a grounding wire excep that my old house wiring has only two wires which is one black and one white.
Thanks
Michael
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Old 09-20-2010, 09:07 PM   #7
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Wall Heater grounding wire


Hi,

When you install a new electric appliance make sure the wire size is correct. Your'e installation instructions will advise on current/wattage ratings.Connected to a under sized wire would cause heating on the wires
and fire risk.

It is important to size the ovecurrent device properly.
Having a 20amp fuse /breaker protection on a #14awg wire cable puts you at risk again for fire .

Bonding for the appliance is also very serious.
In the case of a fault in the heater element and electricity is shorted
to the heater an incorrect path back to the electrical panel would leave
the heater live and once touched could give a life threating shock.

When working on equipment make sure it is de-energized and cannot be turned on by someone else.

Test the power once off by a certified test meter using the 3- point test method. test live circuit ,circuit being worked on,live circuit to prove meter still works.

My best advice ,Do the work safely and right the first time.

Always obtain an electrical permit if doing wiring on your home.
The inspection departments are in place to help you and your'e family
stay alive.

This message is intended to keep you safe.
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Old 09-20-2010, 09:20 PM   #8
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Wall Heater grounding wire


Quote:
Originally Posted by Michael Hui View Post
"Wiring Method used"
I copied the same wiring method as in the old the unit; Black to Black White to White and the Green which is ground I connected to a screw on the bracket for heater.
No, by wiring method I mean is it NM cable (romex), armored cable, pipe, etc.

If it is true AC cable or conduit and wire then the sheath or conduit may very well be your ground.
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Old 09-20-2010, 09:21 PM   #9
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Wall Heater grounding wire


Quote:
Originally Posted by Michael Hui View Post
So I just srew the ground wire from the heater to the ground.
I am not sure I follow. Where did you terminate the wire from the heater?
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Old 09-20-2010, 09:21 PM   #10
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Wall Heater grounding wire


OOPs,

Make sure the voltage of the heater is correct .Check the name plate,normally black wire L1 (120)and white -N ,red L2(120)
You should see a red and black wire for 240 volt,white and black for 120volt.
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Old 09-20-2010, 09:26 PM   #11
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Wall Heater grounding wire


Quote:
Originally Posted by waynesp View Post
OOPs,

Make sure the voltage of the heater is correct .Check the name plate,normally black wire L1 (120)and white -N ,red L2(120)
You should see a red and black wire for 240 volt,white and black for 120volt.
Wayne, in the US most electric heat, and most other straight 240v circuits, are not wired with 3-wire. We typically use 2-wire using the white and black as the two hots since these circuits do not require a neutral.

I am not sure where the OP is located though, but I assume the US.
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Old 09-20-2010, 09:27 PM   #12
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Wall Heater grounding wire


That is a very consierate advice. Thank you.
I am using the existing wire from a 30 amp breaker disconnected from my old baseboard heater. What I am doing is just replace the old unit with a new heater unit with the existing wire. The difference is that there is a green grounding wire from the new heater and there are just two wires on the existing wiring.
Michael
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Old 09-20-2010, 09:40 PM   #13
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Wall Heater grounding wire


Quote:
Originally Posted by Michael Hui View Post
What I am doing is just replace the old unit with a new heater unit with the existing wire. The difference is that there is a green grounding wire from the new heater and there are just two wires on the existing wiring.
We know this now from several different posts. What we don't know is what type of cable is feeding this heater.
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Old 09-20-2010, 09:48 PM   #14
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Wall Heater grounding wire


Hi,

Is the voltage,and wattage rating of the heater the same as the old heater?
what is the voltage of the heater? check name plate
What is the wattage of the heater?check name plate
What is the wire size rating on the cable?check cable sheath

What is the breaker or fuse size feeding the heater?check at panel

Does the cable feeding the heater have a ground conductor?check cable

Do you have installation instructions?

Check electrical drawing in instructions and post.
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Old 09-20-2010, 09:53 PM   #15
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Wall Heater grounding wire


Is the wiring copper or aluminum?

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