Question about Honeywell Programmable Thermostat Heater

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Thermostat installation I am installing a new thermostat for my baseboard electric heat. The electric box has 2 wires comming into it. So I have 2 black, 2 white and 2 ground. The old thermostat had a place for all 4 wires (one side line one side load) the new thermostat is a honeywell RLV430 High voltage (at least I got the high voltage part right). It only has 2 wires so I am at a loss as to what to hook up where.My inclination is to hook the load to one and the line to the other. But I don' know if this is right

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  • paul306 Nov 28, 2007

    I've purchased the RLV430 thermostat and it has two black wires. However, my old thermostat has a two separate wires that contains smaller wires (red, yellow, white, green and blue) which totals 7 small wires. Please provide your feedback.

  • Anonymous Dec 12, 2007

    YES I HAVE THE SAME PROBLEM PLEASE REPLY TO rtirrell@greenwaldindustries.com Thanks Bob

  • Anonymous Oct 10, 2008

    I to, have 4 wires. 2 black and 2 white. I tried tying the 2 blacks together and the two whites.

  • tapsman Dec 05, 2008

    I also have 2 white and two black wires that were attatched to the old thermostat, they both have power in them. When I attach them as per directions(2 whites together, 2 blacks going to the thermo) there is no power at all in the thermo. I have installed at least 3 others in the house the same way and they work fine. Can you help?

  • tucheturtle Dec 06, 2008

    I have an old Honeywell baseboard thermostat that is connected to two heaters. I am installing the RLV430. The old thermostat has 2 red wires on one side and 2 black wires on the other side. There is also a white wire. The new thermostat has only 2 black wires. The diagram in the manual is very confusing. I don't understand what those squiggly lines are on the diagram. Can someone give me a better diagram? Or explain it to me.



    Thank you

  • lisa_sch Mar 04, 2009

    I am installing a new thermostat for my baseboard electric heat.
    The electric box has 2 wires comming into it. So I have 2 black, 2 white and 2 ground.
    The old thermostat had a place for all 4 wires (one side line one side load) the new thermostat is a honeywell RLV430a High voltage. It only has 2 wires so I am at a loss as to what to hook up where.

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On paul 306, I don't have any info on you're system, but the old thermostat that has the smaller wires with the colors you described is a low voltage (24volt) controls. The new one you purchased sounds like it is for a system that is made for line voltage (120 volts or more) connecting this to the unit may have bad results. This also may apply to GUEST.
COACOOCHEE, the white and black coming into the box is the line, even though white should not be used for line, the connections for the other side of the thermostat is the load. The new thermostat you have be a single pole break as opposed to the old one may be a double pole. You should have a meter to check the voltage coming into the box, it may be 120 or 220 depending on what you have. Without any more info I cant be sure, but you may be able to connect the black wires to the switch and the white together. But it would be wise to test with a meter to be sure before doing this.

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hardrocko
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SOURCE: I am installing a new thermostat for my baseboard

Any thermostat for elecric heat breaks the line/load connection as you said. Your old thermostat broke both the hot and the neutral. I would recommend first that you consult the instructions with the new thermostat or go to their website at http://yourhome.honeywell.com/home/Products/Thermostats/SummaryList.htm
to use their online help. Without seeing the instructions or the thermostat I think you are probably right. I would hook one black to one, the other black to the other, and the whites (which are neutral) together. Let me know if you need more help but check the website.

hardrocko

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dorothyslaug
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SOURCE: The middle of the touchscreen of my Honeywell

it not a touch screen, its manual old style honeywell, square box, not round, not rectanglur.

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Testimonial: "It is a touchscreen. I have seen references to the battery being round and lithium CR2450; however, not sure if this is accurate. Does anyone know?"

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