does this thermostat need C wire connection?
1776767
"C" wire ? you mean common, or ground wire ? No. 2 wires in from furnace/boiler is all I connected.
1294739
For a WiFi thermostat, the 24v pair of wires connect to C and RH (or R) according to this video.http://www.youtube.com/watch?v=8a_f2_iAW1U
493455
Yes it does need the C wire as that is the common for the 24v it needs it to power it up. It has no other power source like a battery like some have. Hope this answers your question.
367978
No, you cannot connect directly to the thermostat. You have to create an account and connect via the third party server. However, the advantage here is the server will send you alerts if it loses connectivity with the thermostat (if you want it to).
161537
It depends on your existing thermostat. This unit requires 5 wires, with the 5th blue wire requiring 24V. If you have a modern 5 wire thermostat, it should work by hooking it up as you say. If you are currently hooked up to only 4 wires, I suggest getting an HVAC person to help out.
1956328
First of all you don't have to activate this sensors. Wires from thermostat should have connection to this sensors. You connect the sensors first and then thermostat.Hope this helps. Let me know if you have question.
1789633
I think that it only requires 2 conductors, so thermostat wire would definitely be fine.
1717605
Mine did, but you'll never need it once you set the digital thermostat. Oh, and it works just as well as the 1200 unit I bought for my house a few years ago
398608
I know this is an old question, but two people answered Yes and that is not correct. I bought two of these units (for a multi-unit property) and my thermostat wire bundle only had 2 wires- red and white. This thermostat requires a C (Common) wire for continuous power, else it will run off the batteries and they will die every two weeks. I had an electrician run a new line of 5 wire cable and pulled out the 2 wire run. If you buy this thermostat, you need 3 wires for heat only, or 5 wires if you have heat and a/c.. either way, you need a C wire for continuous power.
2068748
It says it does not but I don't know why it wouldn't - I have a gas boiler with baseboard heaters and used this to replace my old thermostat. Just connected the wires and away we went.
2221042
Yes you should be able to connect the same wires to the same post on the thermostat. mine also came with directions. You should be fine.Good luck
422676
There should be 5 terminals on the control module, which connect to the thermostat. They are marked like "Y, W, R, G, C" stand for Yellow, White, Red, Green, and Common. I disconnected the "R" wire and connected the switch in between. The two wires you talked about might be the one went to the out door unit (24 V). Double check it by following it where it goes to. You can also check your thermostat two see how many wires are used.
344149
If your air and heating runs off your old thermostat then this should have the same wiring. I did go with this to replace a Coleman, so can't be much help.
1540894
Not sure about your heating system, but mine has two wires only. I connected them to R and W with no issues.
1336121
It does not come with a C-wire transformer. If you are sure you don't have power coming from you AC (mine did), then you will need a transformer. The wifi module slides into the back of the unit, and is why they say it "includes 1 ..."
1872659
No Eric - you need to but a plug in thermostat be careful of your electrical system - I burned out the circuit using this heater and had to re wire that room and put it on it's own breaker - my house is 100 yrs old and still had some hidden nob & tube wiring which I feel contributed to the problem - ever since the new wire is in no problems
1280696
Hopefully this will help you it did to me, http://smartthermostatguide.com/thermostat-c-wire-explained/