I have 3 wires,This thermostat has only connections for 2 wires.Can I still use it?
302219
i dont think so !this thermostat creats its own currant milovolt through the pilot thermocoupler !. and it only uses 2 wires, it sounds like you need a outside power source for the third wire
302220
I purchased this for my gas fireplace, which is millivolt operated. Simple on and off switch. I don't know how the third wire can be attached.
1212411
What they didn't say was that there is a 4 wire and 3 wire thermostat. That said, just turn the thermostat down to shut off the heat.
2169414
Most thermostats only require 2 lugs for wires most have other lugs for air conditioners. There is some that paint a color on the screws. If you have an ohm meter you can test the lugs that work when you turn the tempature up and down. That is where you connect the wires.
2035907
I just used the wires supplied from the unit itself. Simple 3 wire connection. There are no additional connections or additional wire needed. Simple instructions will show you where to connect them. Should you have any issues, please let me know. You will be very happy with this unit. I am. Ron, Mesa, AZPS remember to shut off A/C unit breaker before attempting to install.
1832283
It can be connected with anywhere from 2 to six wires depending on your system. I used only two because I don't have air conditioning and I use a battery instead of AC to power the thermostat. It's a good, versatile thermostat that's easy to install with your installation manual, and easy to program. Took me about 5 minutes to install, and I've never installed one before.
1290664
No, this thermostat requires constant power - you will need a 24V "common" wire connected to the thermostat's "C" terminal. You would either need to run additional wires from your furnace to this thermostat, or there is an adapter you may be able to install into your current setup, but I'm not sure if you can make it work with only two wires. Either way you will need to modify your current configuration to include the common wire. See Venstar ACC0410 Add-A-Wire for all 24VAC Thermostats
1572519
I do not believe the TL8230A1003 will work. The thermostat is for 208 or 240 volts which needs four wires to work. Since you have only 2 wires you have 120 volts or you are in Europe with a 2 wire 220 volt system. With only 2 wires the thermostat will not work.
679439
Only 2 wires are conected inside One wire is sniped short that wire you won't use the other 2 you can hook up anyway you want as it is ac I hope this helped good luck
1789633
I think that it only requires 2 conductors, so thermostat wire would definitely be fine.
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.
1264511
Yes, it is a two wire or more. I used it with two wires and it works fine. However I needed to purchase a coverplate to cover the whole. I bought the Honeywell 50002883-001 which allows for a couple of cover options. I have a vertical box behind the wall and the thermostat needed a horisontal box.
1916110
I don't know a specific answer to your question, however when I was installing mine, I had a wire that I didn't know what to do with. I contacted RCS (check their web site) and received prompt and courteous support. My thermostat works great!
433467
It needs two wires for 24volts. Just installed one at my home. It's a great thermostat and the install is not difficult, just give yourself an afternoon to make it look nice. Make sure that the control unit can be mounted at least two feet from the thermostat.
1290663
No, this thermostat requires constant power - you will need a 24V "common" wire connected to the thermostat's "C" terminal. You would either need to run additional wires from your furnace to this thermostat, or there is an adapter you may be able to install into your current setup, but I'm not sure if you can make it work with only two wires. Either way you will need to modify your current configuration to include the common wire. See http://www.amazon.com/Venstar-Add-A-Wire-Wire-Adapter/dp/B0013LVDQA
1074806
No. A sensor can only be linked to one thermostat. On the other hand, multiple sensors can be linked to one thermostat.
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.
1611154
I believe so, check with your installer because this unit comes with two components,1: is the thermostat itself, 2: is a unit that connects at the furnace or AC unit.