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CZach · Nov 26, 2007, 03:25 PM

Hello,

I recently had some remodeling done in my home were the existing wiring was left in place, but the old thermostats were thrown away. My electrician is on Vacation for a week and it is getting cold in that part of the house. I have 120/240V Electric Baseboard Heaters and 14/3 Wire ran from Breaker Box to the Outlet location and than 14/3 ran from Outlet box to the Electric Baseboard heater. Existing Wiring and Baseboard heater from prior to Remodeling.

I need to install a Honeywell T4398B Thermostat that I purchased @ Lowe's to control my Elec Baseboard Heaters. I was instructed by my Electrician to pick up this Thermostat. The Thermostat has a Red & Black (I) and a Red & Black (T). I am pretty sure I match the Colors and wire nut the Whites. Is this correct, I have done electrical work in the past but no Thermostats.

Can you give me some guidance on this?

hvac1000 · Nov 28, 2007, 05:29 AM

It is only a two wire stat and you only have two wires to connect. Follow the wiring diagram as posted in this doc.

http://customer.honeywell.com/techli...0s/69-1604.pdf

labman · Nov 28, 2007, 08:00 AM

I tried that link and it asked for a password.

For connecting the reds and blacks to the thermostat, they will need to be connected to a 2 pole breaker. Most baseboard hearers don't use the white neutral. If yours doesn't, just cap off the white.

Usually you run XX-2 with ground for baseboard heaters that don't use a neutral, connecting the black and white to the terminals of the heaters. #14 wire shouldn't be used with heaters rated at more than 2880 watts at 240 volts.

hvac1000 · Nov 28, 2007, 11:05 AM

Originally Posted by labman

I tried that link and it asked for a password.

For connecting the reds and blacks to the thermostat, they will need to be connected to a 2 pole breaker. Most baseboard hearers don't use the white neutral. If yours doesn't, just cap off the white.

Usually you run XX-2 with ground for baseboard heaters that don't use a neutral, connecting the black and white to the terminals of the heaters. #14 wire shouldn't be used with heaters rated at more than 2880 watts at 240 volts.

The link provided is open to the public. It is a direct link to Honeywells web site. The link opens a Adobe file. If you do not have Adobe the file may not open. Adobe located here. Adobe is used for over 60% of all Corporate information Documents. Do not forget to uncheck the box for Google tool bar.

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labman · Nov 28, 2007, 11:59 AM

You think I just fell of the turnip wagon today?

hvac1000 · Nov 28, 2007, 01:41 PM

Originally Posted by labman

You think I just fell of the turnip wagon today?

Never said that or implied that. I just always provide quality links when used with appropriate software. LOL

BTW I always heard that it was a turnip truck not a wagon. Since we live in different parts of the country that could explain the difference.