Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 11-25-2012, 09:12 AM   #1
Junior Member
 
Join Date: Nov 2011
Posts: 12
New Thermostat Wiring

I replaced my old Atwood Hydro Flame 8500-IV furnace with a new Atwood Excalibur XT. The new furnace came with a new digital thermostat. The old thermostat was a two-wire connection (Thermostat 1 & thermostat 2?) and the new thermostat requires 3 wires. I am guessing that adding a 12VDC+ and a 12VDC- wire will power-up the new controller bu which existing thermostat but which wire do I use? The connector to the new furnace had 2 thermostat wires but the new digital thermostat wiring diagram shows only one.
__________________

__________________
CalvinW3 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 11-25-2012, 12:10 PM   #2
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
Calvin, are you doing the wiring according to, Atwood literature # MPD 31493 effective 1/08 ??
I'm in the middle of helping a friend replace his t'stat, Model 2H2C , and Ive got the furnace function down but can't get the A/C on line.
Are you going to hook the A/c to the digital T/stat or run it off the original ?
__________________

__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 11-25-2012, 12:46 PM   #3
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,970
Calvin, I found another wiring diagram, that I had down loaded, it was page 4 of the furnace info.
It shows 4 wires at the furnace bulkhead connector,
Red, cavity 1 +12v to the Tstat;
Blue, cavity 2 +thermo
Yellow cavity 4 not connected to the thermo
Green cavity 5 - thermo
These wiring colors may change between the connector and the T/stat, because Atwood did not supply the wiring.
If you only have 2 wires from your old furnace to the old T/stat location you may have to fish an extra wire through.
The way I read the diagrams I have, Red at the furnace to terminal 3 at the T/stat, Blue at furnace to terminal 8 at t/stat, and green at furnace to terminal 1.
I'm still working to get the Duo Therm A/C working, someone else has been playing with the wiring at the A/C and I think that that's what fried the T/stat. I'm proceeding with caution. $$$$
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Reply

Tags
thermostat, wiring



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:16 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.