Self Help Forums

Go Back   Self Help Forums > Repair > Heating & Air Conditioning - Existing Home
Register FAQ Members List Calendar Today's Posts

Heating & Air Conditioning - Existing Home Heating & Cooling / Repair , Additions & Problems Solving Solutions

Reply
 
Thread Tools Display Modes
  #1   IP: 216.204.54.186
Old November 3rd, 2004, 07:59 AM
Unregistered
 
Posts: n/a
Default

Looking for help finding a programmable thermostat that will with my 3 wire zone valves. I can find several for a 2 wire valve, but can't locate one for a 3 wire.
Ideas? Brands?
Thanks.
Reply With Quote
  #2   IP: 66.59.120.156
Old November 3rd, 2004, 09:10 AM
mdshunk's Avatar
mdshunk mdshunk is offline
Senior Member 'Self Help Guru'
 
Join Date: Jan 2004
Posts: 4,199
Default

You can use any programmable thermostat that you like if you wire your thermostat and zone valves like the diagram below. Post the manufacturer and model of your zone valves, and I can be more specific for your application.
Attached Thumbnails
Click image for larger version

Name:	taco_wiring_dia.gif
Views:	1340
Size:	17.1 KB
ID:	211  
__________________
"Nothing is foolproof to a sufficiently talented fool"
Reply With Quote
  #3   IP: 4.156.105.159
Old November 4th, 2004, 05:19 PM
Unregistered
 
Posts: n/a
Default

Thanks for your help, I appreciate you getting involved with this. I was under the impression I couldn't use a 2 wire valve, but if I can, great.
Anyway, I've got two Taco brand valves, model #'s 571-2 and 572-2 (these are the only numbers I can see stamped on the valve). One is for downstairs and the other upstairs, and I'd like to add a programmable thermostat to both. Anything further you can provide about how to wire them up would be great. BTW, if it matters, the wires going to the valve are red, white and green.
Thanks again.
Reply With Quote
  #4   IP: 4.156.102.43
Old November 7th, 2004, 05:40 PM
s_hat s_hat is offline
Junior Member
 
Join Date: Mar 2004
Posts: 4
Default How do you do this?

Quote:
Originally Posted by mdshunk
You can use any programmable thermostat that you like if you wire your thermostat and zone valves like the diagram below. Post the manufacturer and model of your zone valves, and I can be more specific for your application.
I'd be very curious to see how to wire those valves to make them work with a programmable thermostat. Every one I've seen is marked "not for use with 3 wire zone valves."
Please, enlighten me mdshunk. Thanks
Reply With Quote
  #5   IP: 12.151.29.95
Old November 7th, 2004, 06:26 PM
mdshunk's Avatar
mdshunk mdshunk is offline
Senior Member 'Self Help Guru'
 
Join Date: Jan 2004
Posts: 4,199
Default

My wiring diagram disappeared from the last post. Here it is again. As you can see, the third terminal doesn't go to the thermostat.
Attached Thumbnails
Click image for larger version

Name:	taco_wiring_dia.gif
Views:	872
Size:	17.1 KB
ID:	232  
__________________
"Nothing is foolproof to a sufficiently talented fool"
Reply With Quote
  #6   IP: 68.83.71.40
Old January 9th, 2005, 05:37 PM
Unregistered
 
Posts: n/a
Default

Hello mdshunk,
I have the same issue. Bought a Honeywell CT3650 and found out in the manual that it's not supposed to work with 3-wire zone valves. I have 2 zones with Taco 555-102 valves. Can you maybe explain to the layman exactly which wire color I can disconnect and if I lose any kind of functionality?

Many thanks in advance!
Reply With Quote
  #7   IP: 12.3.112.8
Old October 22nd, 2008, 07:50 AM
davidsgray davidsgray is offline
Junior Member
 
Join Date: Oct 2008
Posts: 1
Default dgray

Do you have a wiring diagram for a White-Rogers?

Thanks You
Reply With Quote
  #8   IP: 136.1.1.101
Old October 29th, 2008, 04:34 AM
hutseh hutseh is offline
Junior Member
 
Join Date: Oct 2008
Posts: 1
Default White-Rodgers 3-wire zone valves to 2-wire thermostat

Quote:
Originally Posted by mdshunk View Post
You can use any programmable thermostat that you like if you wire your thermostat and zone valves like the diagram below. Post the manufacturer and model of your zone valves, and I can be more specific for your application.
Hello, do you have a wiring diagram for a White-Rodgers 3-wire zone valve (1311-102) to a 2-wire thermostat (Honeywell RTH230B)?

Thanks, Nick
Reply With Quote
Reply






Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wire Trouble Crosswire Telephone Wiring 1 December 6th, 2011 06:47 PM
Path of Electricity amp Electrical - Existing Home 36 July 8th, 2011 08:13 AM
How do I get a DSC 1832 to recognize the wireless zones? warlock0263 Home Security 15 December 12th, 2008 11:00 PM
Question about wiring a 50A welder *Schwack Electrical - Existing Home 0 December 12th, 2003 12:15 PM
Replacing an electric baseboard thermostat *Mike Heating & Air Conditioning - Existing Home 0 December 12th, 2003 09:21 AM


All times are GMT -4. The time now is 01:19 PM.


Powered by vBulletin® Version 3.6.7
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
© 2002 - QuinStreet, Inc.
http://www.selfhelpforums.com