Honeywell RLV430A install wiring question...

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Old 11-18-08, 07:07 AM
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Honeywell RLV430A install wiring question...

I bought a Honeywell RLV430a electric baseboard heat thermo, it has TWO black wires coming out of it, inside the wall
are four wires, two black and two white...
The current non programmable Honeywell thermo that is hooked up has:
FROM thermostat red wire to black wire in wall...
FROM thermostat red wire to black wire in wall..
FROM thermostat black wire to white wire in wall..
FROM thermostat black wire to white wire in wall..

How do I wire the new thermostat up??

Thanks in advance, Rich
 
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Old 11-18-08, 08:00 AM
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You wire up the white wire up together (no contact with t-stat)

Then one black t-stat wire to one of the black wire from the wall.

Other black t-stat wire to other black wire in the wall.
 
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Old 11-18-08, 08:16 AM
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Thanks!

Thanks for the fast response Jay, so the two whites in the wall, wire together and cap off...
 
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Old 11-18-08, 08:30 AM
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Yep, tie the two white wires together and put a wire nut on it.
 
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Old 11-20-08, 03:36 PM
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Thanks again!!

Thanks again Jay, worked like a charm when I installed today!!!
 
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Old 11-20-08, 08:28 PM
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Glad to hear you are up and running.

Thanks for the update.
 
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Old 09-10-10, 10:30 PM
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reviving old thread

So I have this thermostat too (just got it along with 2 240v 4' baseboard heaters) and am in the process of finishing my basement.

I was looking at the diagram and it matches with what was said above
http://customer.honeywell.com/techli...0s/69-1855.pdf

However based off of what I've learned about how 240v works(i'm new to 240 circuits)...I don't understand how the diagram makes sense.

Assuming 12-2 wire: black(hot) white(hot, labeled with red tape) and ground


If the white(hot) wires are connected directly, wouldn't the heater be constantly getting 120v? Are all 240v heaters designed to be able just ignore 120v until it receives a full 240 load?


Please excuse my ignorance here.
 
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Old 09-11-10, 06:48 AM
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Originally Posted by sylentmode View Post

If the white(hot) wires are connected directly, wouldn't the heater be constantly getting 120v? Are all 240v heaters designed to be able just ignore 120v until it receives a full 240 load?
Correct, is needs full 220v to work, if half only there, it's not going to heat.
 
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Old 09-11-10, 09:04 AM
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Thanks Jay!
I was a but hesitant there. I wish the manufacturer directions were a little more thurough than just a picture. Would have been nice if they explained its the same deal for both 240v and 120v.

Also they explicitly say white wire, but from my understanding, its recommended to use a red/black for 240v though as long as properly marked you can get away with a white black xx-2.

So I assumed the directions just covered 120.
 

Last edited by sylentmode; 09-11-10 at 09:27 AM. Reason: typo
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Old 09-11-10, 05:03 PM
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Glad to help out.

When ever a person has a 220v appliance, and it don't heat but motor or display/light work, chances are it lost the other leg of power.
 
 

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