Does this heater use a neutral wire, or two hots and a ground?
1471586
Its single phase 208/240/230 (depending on your location). Uses 2 hots and a ground (neutral). Hope this helps.
771293
Ground!Be sure that your unit doesn't have a low voltage circuit that's available. Perhaps you'll have to run additional wire to the thermostat from the unit, but the extra unit may not be necessary, I was happily using it as directed until discovering that voltage was already on my furnace.Pays to check.Dee
347404
I have been using the neutral wires in all of my installations. I'm not sure how it will operate if not connected.
1292284
The unit has 2 120 V.A.C. hot wires from the circuit breaber panel and a bare ground wire. The hot wires are each 120 V.A.C. making the timer box used on a 240 V.A.C. hot water heater, the bare wire is a ground wire.
1326831
A 2 prong has a neutral line (-)and a connection line (+). A 3 prong has both plus a ground line for a fault path in the event of a hot wire,or device connected should short out.
458714
I think it's just a 2 prong connection, should be a switched hot and a ground
1540894
Not sure about your heating system, but mine has two wires only. I connected them to R and W with no issues.
2121214
As I recall it just had two; a black and a white. No ground wire. It is for lamps rather than house wiring.
1913353
4 wires total, including the ground. Green ground, Black hot, White neutral and Red load.
1744524
I grounded my switch to the box and it works perfectly. I don't have ground wires either. You do need a neutral wire.
1292283
The unit has 2 120 V.A.C. hot wires from the circuit breaber panel and a bare ground wire.The hot wires are each 120 V.A.C. making the timer box used on a 240 V.A.C. hot water heater, the bare wire is a ground wire.
1991766
You need to run 12/2 wire with a ground. So, three wires. Black to one leg of 220, white to the other leg, and bare to ground. No neutral is required.
754846
Yes. I have two on one thermostat. Each heater has it's own breaker and two pole relay. In your case you would have three breakers and three relays. Then all you need to have control voltage through your wall thermostat (120 v) to energize the control relays.
897338
I am not sure, but if it is plugged in to a grounded outlet it should be fine. If you are experiencing issues with the heater return it if you can as comfort zone is not the greatest customer service company
2067116
it should only uses two wire. I have it on a gas fireplace, without blower. if you have more than two wires I don,t if it will work. BOB
1572514
White is neutral, Red is hot. Double check to make sure you have a 208/240 volt electric heater, as opposed to a 120v heater.If you do have 208/240v heat, then you are not wired up for a 2-pole thermostat, which this is. You'll need a single pole thermostat, which is a sucky configuration and I'd strongly advise having an electrician to come in and rewire so that you can use 2-pole. But it sounds like you have 120V, which means you just need a 120V thermostat.
1809283
In America we have 110 and 220. This is 110 volt heater with 2 prongs. No ground .