Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-25-2011, 09:57 PM   #1
Member
 
Join Date: Nov 2011
Location: Billerica, MA
Posts: 140
Share |
Default

Replaced my thermostat - did I do it right?


I recently replaced my older thermostat with a new Honeywell one. The wiring seemed straightforward, and the furnace is working as expected, but I wanted to get a more experienced set of eyes to look at how I wired it.

Here is how the old one was wired:


Note that the red wire goes to the RC terminal, then continues to the RH terminal.

And here is the new one all wired:


In the new thermostat, the red wire goes into the R terminal. You can't really see from the photo, but there is a small jumper wire connecting R to RC. Is this how it should be?

And one other question about the wiring of the new thermostat - should I cut them a bit shorter so they aren't bending all over the place?

Thanks for your time!
thinksincode is offline   Reply With Quote
Old 11-25-2011, 10:19 PM   #2
Member
 
Join Date: Oct 2011
Location: pa
Posts: 3,986
Default

Replaced my thermostat - did I do it right?


yes it looks ok and yes you can shorten up the wires a bit....repair that red wire insulation stripped back to far could short.... try pulling wire out of wall to start with to make it longer,,,,,gentley though then recut shorter and cleaner
ben's plumbing is offline   Reply With Quote
The Following User Says Thank You to ben's plumbing For This Useful Post:
thinksincode (11-25-2011)
Old 11-25-2011, 11:27 PM   #3
Member
 
Join Date: Feb 2007
Location: NW Ohio
Posts: 804
Default

Replaced my thermostat - did I do it right?


You need to get rid of the bare wires......red and white.....then stuff something (like insulation) in the hole so the stat doesn't see or "feel" a draft out of that wall.
harleyrider is offline   Reply With Quote
Old 11-26-2011, 05:15 AM   #4
Member
 
biggles's Avatar
 
Join Date: Jan 2008
Location: Long Island
Posts: 3,574
Default

Replaced my thermostat - did I do it right?


nice 1/4 strip off of the insulation per wire will tighten that up we have certain standard here...
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
biggles is offline   Reply With Quote
Old 11-26-2011, 05:33 AM   #5
Member
 
raylo32's Avatar
 
Join Date: Nov 2006
Location: Maryland (DC 'burbs)
Posts: 1,020
Default

Replaced my thermostat - did I do it right?


If there isn't enough red wire to pull out so you can cut the bare wire off, get some shrink tube and slide it over the wire overlapping the good insulation on both sides and the bare area. Gently heat to shrink it down. This will give you a cleaner repair than just taping it up.
raylo32 is offline   Reply With Quote
Old 11-26-2011, 08:00 AM   #6
I'm Your Huckleberry
 
Join Date: Mar 2011
Posts: 5,446
Default

Replaced my thermostat - did I do it right?


ACK! My eyes, MY EYES!!

DoOd, you do not want any bare metal showing anywhere outside of the very tip that is stripped back to be screwed in the terminals.

Mark all the wires or use your pictures as a template, unscrew all terminals thus removing all wires and with some pliers pull that wire out through the wall. 9 out of 10 times there is at least a few inches if not a few feet worth of wire stuck in the walls or some slack somewhere along the way.

I'd cut off all of that old stuff, strip back the entire jacket which would reveal new small wire and use that.

Last edited by Doc Holliday; 11-26-2011 at 08:05 AM.
Doc Holliday is offline   Reply With Quote
Old 11-26-2011, 08:07 AM   #7
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 8,312
Default

Replaced my thermostat - did I do it right?


I HATE lath and plaster walls!!!!!.

Usually there is no give in the tstat wire in those old houses and you may short it out where it comes thru the wall. Then you have a HUGE problem as stringing a wire in those walls is very difficult. I would CAREFULLY straighten those wires and slip some heat shrink tubing from Radio Shack on them and heat with a cigarette lighter or one of those micro torches that use butane. Then reconnect them and put fibreglass insulation in the hole to prevent drafts and short cycling.
__________________
"Cut it twice and it is still too short".
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by yuri; 11-26-2011 at 08:12 AM.
yuri is offline   Reply With Quote
Old 11-26-2011, 09:19 AM   #8
Member
 
raylo32's Avatar
 
Join Date: Nov 2006
Location: Maryland (DC 'burbs)
Posts: 1,020
Default

Replaced my thermostat - did I do it right?


Those butane micro torches with the proper tip are the best way to apply shrink tube. One of my favoritest tools....

Quote:
Originally Posted by yuri View Post
heat with a cigarette lighter or one of those micro torches that use butane.
raylo32 is offline   Reply With Quote
Old 11-26-2011, 01:59 PM   #9
Member
 
Join Date: Nov 2008
Location: palm coast fl
Posts: 588
Default

Replaced my thermostat - did I do it right?


Quote:
Originally Posted by raylo32 View Post
Those butane micro torches with the proper tip are the best way to apply shrink tube. One of my favoritest tools....
great for the crack pipe too lol

well thats what i heard
kennzz05 is offline   Reply With Quote
Reply

Tags
hvac, thermostat, wiring


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Need help replacing an OLD General Controls Thermostat ohman HVAC 3 06-08-2011 05:35 PM
double pole thermostat for kickspace heater lee12 Electrical 3 12-09-2010 12:52 PM
connecting a 4 wire SP thermostat to a 2 wire system wiichkin Electrical 4 08-15-2010 01:35 PM
Honeywell Prestige HD thermostat wiring 1H/1C + Humidification System TekGamer HVAC 0 07-09-2010 11:58 PM
Hunter 44668 Thermostat - Heat won't turn off ToneyRes HVAC 9 10-18-2009 08:50 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.