sfpooh Posted December 30, 2008 Share Posted December 30, 2008 I had my HVAC guy wire 2 Tstats in the house today. I am not yet connected into the Control4 system, so they are operating as independent thermostats at this time. He ran common wires to each stat because I read on the forums how that is the preferred method over battery. A couple issues / questions: 1) he mentioned that there is no connector on the block for a common wire. Also, 2) after he wired them up, the furnace in both zones kicked on and ran, however there was nothing on the LCD's. As soon as I installed batteries, the LCD's lit up and worked fine. Is there a special method of wiring the Tstats so that they use common wire power for everything? Any referance docs? Tips, thoughts? Thanks in advance. Link to comment Share on other sites More sharing options...
Brad_The_Lucky Posted December 30, 2008 Share Posted December 30, 2008 I'm not really answering your question, but I can confirm that mine are wired and operational (LCD's too) with NO batteries installed. I think there was a post a while back w/ a PDF wiring diagram.... Link to comment Share on other sites More sharing options...
henniae Posted December 30, 2008 Share Posted December 30, 2008 I had my HVAC guy wire 2 Tstats ... 1) he mentioned that there is no connector on the block for a common wire.There is a connection for the common wire it is the terminal marked TS/C. The t-stat includes a wiring diagram so your HVAC guy should have 2 copies to read. Make sure he also sets the switches in the t-stat to the correct settings based on the type of heating system you have. These settings are also in the included install instructions. Link to comment Share on other sites More sharing options...
jesh Posted January 1, 2009 Share Posted January 1, 2009 Here is info on power stealingwww.jesh.com/powersteal.pdf Link to comment Share on other sites More sharing options...
poscash3757 Posted February 13, 2010 Share Posted February 13, 2010 I have just installed a gas fireplace. I ran cat 6 to the unit. Now what? Any suggestions? My plan was to hook up a c4 thermostat having it run on battery power. After reading a few prior posts even in best case scenario of a 2 month battery life is not to good. How else can I power the t-stat? I could run the cat 6 wire to my controller and have it turn on/ off as a relay but then no temp control. Advise Please?Matt Link to comment Share on other sites More sharing options...
henniae Posted February 13, 2010 Share Posted February 13, 2010 I have just installed a gas fireplace. I ran cat 6 to the unit. Now what? Any suggestions? My plan was to hook up a c4 thermostat having it run on battery power. After reading a few prior posts even in best case scenario of a 2 month battery life is not to good. How else can I power the t-stat? I could run the cat 6 wire to my controller and have it turn on/ off as a relay but then no temp control. Advise Please?MattGet a transformer for an HVAC system and run the t-stat off the transformer. Cat-5 is not the best wire to use for a t-stat. Link to comment Share on other sites More sharing options...
poscash3757 Posted February 14, 2010 Share Posted February 14, 2010 I have just installed a gas fireplace. I ran cat 6 to the unit. Now what? Any suggestions? My plan was to hook up a c4 thermostat having it run on battery power. After reading a few prior posts even in best case scenario of a 2 month battery life is not to good. How else can I power the t-stat? I could run the cat 6 wire to my controller and have it turn on/ off as a relay but then no temp control. Advise Please?MattGet a transformer for an HVAC system and run the t-stat off the transformer. Cat-5 is not the best wire to use for a t-stat.ThanksWell then if I purchase the transformer for the t-stat, Can I run the cat 5 to the controller and have the t-stat open and close the relay?Matt Link to comment Share on other sites More sharing options...
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