Which pin does the GND connect to on the thermostat?
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
1294740
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
1294741
The GND (ground) from this does not connect to the thermostat. The thermostat is grounded through the original wiring to your furnace. Look online for instructions on how to use this with I assume a wireless thermostat.
1958997
I had the same 2 wires on my old thermostat, and I found the answer in one of the responses to a review that was already on the site, by A. Pico: "I was in the same situation: two unmarked wires that when connected turn the furnace on. Simple. However, in my case, the trick was to connect them to positions R and W." Mine worked when I connected them to R and W also; does not matter which goes to which, and I did not take off any jumpers.
1847693
I don't know. It wouldn't work for me, I had to have a faulty board replaced in the control system as well as a new thermostat.
883779
No. It's linked to the wall thermostat. Very nice unit though. Warm and quiet! We are happy with it. Electrician said it was an easy installation.
847991
Connect the ground conductor to one of the screws that holds the fan assembly in the housing
905442
Sorry for the delay. I don't know anything about this. My husband is out of town on business and this is his thermostat. He'll be back this weekend and will check into your question.
1883855
This is a basic programmable thermostat that runs on 4 wires. I'm not sure what you mean by the "plate (top cover)", but if you're replacing a thermostat that wires to the mounting bracket (most do these days) it's best to just replace the whole thing, even if it's the same model. slight variations in production of the thermostat could create a bad or non-existent connection, or at worst damage the new thermostat. Also, ask your landlord why he/she isn't replacing the thermostat especially if he/she was the one who damaged the old one.
1317877
This unit has no place to connect a ground so you have to just leave it out. Unless it's an old metal box which you would connect the ground, but the thermostat itself has/needs no ground. I've used this in two different homes.
2218129
I would not do that unless you knew the location of the internal thermostat. Check with manufacturer or schematic.
1974260
The connection to your temperature reading device is 2 flat prongs (positive and negative) while the other end of the thermocouple wire is a small round sensing bulb.
982918
My thermostat has two wires and my solenoid value has two wires. I just connected one wire from the thermostat to one wire to the solenoid. Likewise, I connected the other wire from the thermostat to the other wire to the solenoid. The two transformer wires that provide power are connected directly to two terminals within the thermostat - under its cover.
779796
Just connect a wire from the positive side of the fan motor to one lead of your indicator light. Connect the second lead from the light to ground. I used a red LED lamp purchased from Radio Shack and mounted it to the fan's On/Off switch plate. Remember to connect the wire to the fan motor itself, not to the positive side of the thermostatic switch. Connecting to the thermo-switch will only tell you there is power in the circuit, not whether or not the fan itself is running. I think I used 18 or 20-gauge wire for my installation as the LED draws very little current. Good luck and Merry Christmas.
493572
Again look for the white square with a model number on the thermostat. The new one had the exact model number as mine.
430751
Most, if not all, of the thermostats you will encounter have been color coded for commonality. So yes, you should use the RWGY terminals. If it is at all possible, try to verify what those original wires are for. For example, the G wire might be for the fan. Is there anything in the manual that says the G terminal is for the fan? If so, this is the correct terminal.Good luck and enjoy saving $$ with the new timer system!(I apologize for taking so long for this response)
812108
You can connect the appropriate sensor to the central unity using the wired outputs in the back (look for sensors with standard normally open/closed outputs). You can connect these sensors to the Mace Door/Window Sensor as well, replacing the magnets for the temperature sensor and using it as a remote control to call the central. If the power goes out it will remain working as long as the 9v battery lasts.
1318957
It has a battery for memory back up, but it runs off the C wire. Be sure your thermostat setup has a C wire.
1347981
VCC (what you call UCC) is the steady voltage IN. (what powers the sensor). GND is the Ground or Negative terminal. the VCC and GND should be connected to a 5VDC source. I'm guessing that is what your Red and Black wires are for. The OUT is the pin that changes from 0V to 5V when the sensor senses motion. It should be connected to the input of whatever you are triggering.