Thermostat Wiring Diagram Or Directions - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 08-22-2012, 11:15 AM   #1
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Question

Thermostat wiring diagram or directions


I have four Honeywell TL8230A1003 LineVoltPRO 8000 Programmable Thermostats. It turns out I have one room which will need the dpst completely. The other three rooms have existing spst thermostats (One red wire & one black wire).

What is the best way to wire my new thermostats (Two red & Two Black wires) into the old boxes which have the one red & one black wire?

I KNOW I should have bought SPST in the first place but I am married and SHE said they all had to match.....well, if you are married, you already understand!

Advertisement

Papa Smoke is offline   Reply With Quote
Old 08-22-2012, 01:08 PM   #2
Retired from the grind
 
gregzoll's Avatar
 
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 14,400
Rewards Points: 2,462
Default

Thermostat wiring diagram or directions


I am married, and no I do not understand. And no, it really does not matter if they match, since if they worked before, why fix it.

Advertisement

__________________
Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?
gregzoll is online now   Reply With Quote
Old 08-22-2012, 01:53 PM   #3
UAW SKILLED TRADES
 
Stubbie's Avatar
 
Join Date: Jan 2007
Location: Kansas
Posts: 5,214
Rewards Points: 2,398
Default

Thermostat wiring diagram or directions


Quote:
Originally Posted by Papa Smoke View Post
I have four Honeywell TL8230A1003 LineVoltPRO 8000 Programmable Thermostats. It turns out I have one room which will need the dpst completely. The other three rooms have existing spst thermostats (One red wire & one black wire).

What is the best way to wire my new thermostats (Two red & Two Black wires) into the old boxes which have the one red & one black wire?

I KNOW I should have bought SPST in the first place but I am married and SHE said they all had to match.....well, if you are married, you already understand!
Well ..... its a 240 volt douple pole line voltage thermostat so your going to have to bring another black and red (2 wires ) from the power source to that thermostat. As it is and assuming your baseboards are 240 volt and not 120 it is only breaking one leg of the 240 circuit. Are you sure what voltage your baseboards are ?

Why would you blame your wife for something that is obviously not HER fault ?

Last edited by Stubbie; 08-22-2012 at 01:57 PM.
Stubbie is online now   Reply With Quote
Old 08-22-2012, 09:42 PM   #4
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Default

Thermostat wiring diagram or directions


My wife insisted I buy MATCHING thermostats. (Besides, I try to blame her as often as I can....) (This is called sarcasm, friends...humor)

I am pretty sure I do NOT need to run two more wires. An electrician told me there IS a way to do it to code. Unfortunately, he died a short while back so I can't ask him again.
Papa Smoke is offline   Reply With Quote
Old 08-22-2012, 09:50 PM   #5
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,162
Rewards Points: 2,116
Default

Thermostat wiring diagram or directions


Quote:
Originally Posted by Papa Smoke View Post
My wife insisted I buy MATCHING thermostats. (Besides, I try to blame her as often as I can....) (This is called sarcasm, friends...humor)

I am pretty sure I do NOT need to run two more wires. An electrician told me there IS a way to do it to code. Unfortunately, he died a short while back so I can't ask him again.
Im not sure what the issue is?
stickboy1375 is offline   Reply With Quote
Old 08-22-2012, 10:08 PM   #6
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Default

Thermostat wiring diagram or directions


stickboy - I have TWO wires coming into the box(Red & Black). FOUR wires on thermostats (TWO reds & TWO blacks). I want to wire the 4 wire thermostats into the boxes which have two wires. I know that each SET of two wires is one leg. I am looking for the most proper way to do this.

Thanks for asking.
Papa Smoke is offline   Reply With Quote
Old 08-22-2012, 11:10 PM   #7
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,162
Rewards Points: 2,116
Default

Thermostat wiring diagram or directions


Quote:
Originally Posted by Papa Smoke View Post
stickboy - I have TWO wires coming into the box(Red & Black). FOUR wires on thermostats (TWO reds & TWO blacks). I want to wire the 4 wire thermostats into the boxes which have two wires. I know that each SET of two wires is one leg. I am looking for the most proper way to do this.

Thanks for asking.
So just break one leg, whats the issue?
stickboy1375 is offline   Reply With Quote
Old 08-23-2012, 08:44 AM   #8
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Default

Thermostat wiring diagram or directions


The issue is I am not an electrician but I do want to do it right. My plan is to wire the LINE to the incoming LINE and the LOAD to the LOAD. I am just trying to find out if I should pigtail both blacks and both reds (of the thermostat) together.

I do not think so but I want to be sure.
Papa Smoke is offline   Reply With Quote
Old 08-23-2012, 09:15 AM   #9
Member
 
Join Date: Nov 2011
Location: Md/Pa
Posts: 1,471
Rewards Points: 1,298
Default

Thermostat wiring diagram or directions


You have 2 sets of switched contacts inside of your thermos. You can wire them together to share the load for longer life or keep them seperate and have a fresh set if one fails in the future. I don't know, kind of a toss up??
zappa is offline   Reply With Quote
The Following User Says Thank You to zappa For This Useful Post:
Papa Smoke (08-23-2012)
Old 08-23-2012, 11:17 AM   #10
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Default

Thermostat wiring diagram or directions


That is what I thought, too. I am wiring them together for longer life. Why? If I wire them separately, I will have long forgotten that there is still a good side if/when the other goes bad.
Papa Smoke is offline   Reply With Quote
Old 08-23-2012, 09:59 PM   #11
Member
 
Join Date: Nov 2011
Location: Md/Pa
Posts: 1,471
Rewards Points: 1,298
Default

Thermostat wiring diagram or directions


Hey Smoke....disregard what I said in my post. I was thinking that you had a manual 240 volt thermo. Your model needs a constant 240 volts to operate the electronics and I don't think it will work with your 2-wire setups.
zappa is offline   Reply With Quote
Old 08-24-2012, 08:55 AM   #12
Newbie
 
Join Date: Aug 2012
Posts: 11
Rewards Points: 10
Question

Thermostat wiring diagram or directions


I decided to clarify this a bit....so....

Here is what is in the wall:

Thermostat wiring diagram or directions-spst-hookup.jpg

Note that there are 4 wires coming in and going out (red, black, white, and copper) and that the whites are pigtailed but never hit the thermostat (SPST)

and here is what the Honeywell (DPDT) wiring diagram says:

Name:  Wire diagram.jpg
Views: 471
Size:  18.0 KB

IF you know how I can properly wire these new DPDT thermostats into the existing boxes, please let me know - explicitly - since I am a bonehead!

Advertisement

Papa Smoke is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Normal -> IP Thermostat Wiring duren HVAC 2 07-24-2012 09:41 PM
Is it normal to have the furnace control panel wiring, not match the wiring diagram cjbeck71081 HVAC 6 07-18-2012 12:19 PM
thermostat wiring rejames HVAC 11 05-02-2012 09:07 PM
Thermostat wiring dimbulb HVAC 16 08-20-2010 12:49 PM
Honeywell Prestige HD thermostat wiring 1H/1C + Humidification System TekGamer HVAC 0 07-10-2010 12:58 AM




Top of Page | View New Posts