Question about Fahrenheat FFH1615 Heater

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Install and hot wire heater

I need to install a used fan forced room heater. I don't know the correct wiring sequence to my power source. It is a 240/208 volt. It has two loose black wires, one from the temp control and one from the fan motor. also, a green wire that connects to the fan motor. No loose white wires visable.

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  • dewsaw Sep 06, 2007

    Does the taped white wire in the heater also connect to one of the black wires in the heater and, if so, which one or does it not matter?

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Go to www.Qmarkmeh.com. Look under their wall heater section. Download the instruction manual for your model (or one closest to your model).

Posted on Sep 06, 2007

  • Chandler Ede
    Chandler Ede Sep 06, 2007

    Does not matter.

  • kadrmas1 Mar 21, 2011

    DOES ANYONE KNOW WHERE I CAN GET A 36TX11 13940 THERMODISC SWITCH /

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You can be assured that the element is 240 volt. The fan motor is also rated at 240 volt. the wires you have black - black are the connections you make to the line. Use a 12/2 with ground. Use a double pole 20 breaker in your panelbox. The green wire is the equipment ground - connect this to the bare wire from the 12/2. On the 12/2 cable - there will be two colors, one black and one white. Wrap a couple of turns of black tape on the white wire both at the heater location and on the white in the panelbox. connect the 12/2 to your 2 pole breaker, the black wire and the taped white to the breaker.

Posted on Sep 06, 2007

  • Anonymous Sep 06, 2007

    when you run 240 volts to a heater, it is more practical to use a 2 wire romex rather than a three wire which has red, black and white in the assembly. you just don't use the white in the three wire - so - by applying a piece of tape to both ends of the white wire in the 12/2 romex, you are signifying to someone other than yourself that that cable assembly is carrying 240 volt - NOT - 120 volt. If there was no tape on the white then as an electrician I would assume that the cable is connected for 120 volt. Do you understand this? Use the tape on both ends of the romex [white] connect both wires in the 12/2 to the breaker screws. connect the other end in the heater to the two black wires and the bare to the green. Believe me, if you measure the voltage at the heater end, with the breaker on, you'll read 240 volts.

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