i have no "C" wire, i have 2 zones heating and will be used for just heat,currenlty i have 2 wires and cannot run 3rd wire. is it batteries operated?
1961641
The C wire provides the power for the thermostat. The batteries in the unit are only for backup purpose when your power goes out. You need to get new wiring put in from your unit to the thermostat location with a C wire.
1961642
Need the C wire for wifi. I had an electrician run a new thermostat wire so that I could do it. If you are the owner, you may be able to rerun it yourself. Mine went through the heat flashing and was compressed by a support post and my electrician had the tools to fish a new line.
1961643
If you use wifi and want to control it from you iPhone or Andriod phone you need a power source.Just buy a transformer from the maker of this thermostat. It cost 14 USD. Just go to http://store.radiothermostat.com/ and here you find the transformer.
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.
972605
you don't notice the wires. there is an automatic safety shut off and there is a numbered temp setting system. there is no timer you can set on the model I have.
681365
mine is set on C and I keep meaning to contact the company to find out. It is warm on 37-38 over that it gets hot. If you get the answer before I do please let me know. No it is batteries
1156463
I haven't programmed the unit. I just set the switch to either heat or cool, then the temp. I want maintained.
999073
Answer is to be found in other answers. However, the electronic thermostat needs to be energized all of the time (not the case for a "manual" thermostat) and so two of the wires going to the electronic thermostat need to be connected to 240 VAC. The other two wires are to be connected to the heating element. Thus you must determine/separate from the wires available two wires that run to the circuit breaker (supplying 240 VAC) and two wires that go to the heating element. Sometimes, two heating elements are involved. In every case that I have seen, you will see the mentioned pairs of wires entering through separate holes in the back of the box. When wired as intended, one result of using the new electronic thermostat is that no voltage will be present at the heating element when it is off - not now the case. Invest in a very low cost multimeter to use to measure voltage and resistance.
1172424
yup but you need to power it from another source if you only got two wire , depending on the furnace you may have 4 . i had the battery powered stats that did fine on a two wire but wifi needs more power so i got a transformer to run the stat . Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse my furnace had no point to put a third wire for common power "c" terminal so i went and wired stat to the aux supply plugged it in a remote outlet and ran another set wires to stat on wall all set and running fine if you get this set up the tech line at h-well can give you the terminals to mount your 2 new wires the ins booklet had no diagram to run a aux power source c n rc for the new power and remove jumper r n y for the furnace wire pair call to make sure very helpfull Coleman Cable 09632 CL2 Bulk Thermostat Cable, 18-Gauge 2-Conductor 100-Feet used
1963591
It needs the C-wire. In my case the A/C unit had the connection and I could use the existing wire as a pull string to run the new one. I bought this unit specifically because of it's width. The battery powered units I could find would not fit between the two door jams where my old thermastat was.
2254201
It has to be hard-wired. I use mine to ventilate a hallway when it gets too warm, and I have a line-voltage thermostat turning it on and off...
872817
There was no heat anticipator. Just hook up the wires according to the directions. There are several different ways for the wiring depending on the type of heating system you have. Easy-peasy
34733
In my thermostat there are no batteries. It's hardwired in. When it started to malfunction I had to replace the whole unit.
2073491
Yes, but only if you don't connect the COM common wire to provide power to the unit if the batteries die. If at all possible, make sure to connect that wire so the furnace won't go dead when you need it most. It may mean running another wire from the furnace to the thermostat. But it's worth it in the long run.
439798
2 wire system direct to furnace. There is no battery to install and no off switch! I had to pull fuse when I ordered for RV. Sent back to Amazon...picture is wrong!
768046
I don't really have an answer because I bought this for a neighbor and put it in but I did notice that it does cover air conditioning or heating and its battery operated so therefore you don't need power wires to run it just simple contacts and probably runs for a year on battery might run longer I don't know for sure but she read you some product for the price so you could either burn up with heat to hi, you could chill out too cold either one of which would be outside of comfort range
433466
The thermostat requires a two-wire cable to run 24 volts to the thermostat location. It cannot run on batteries like the other accessories, which require no wiring. I didn't find the wiring difficult. I just opened up the furnace and made sure that the G terminal on the furnace was connected to the G terminal on the wiring interface, etc. One tip - hook the thermostat to the wiring interface with a short length of two-wire cable while setting everything up to prevent running up and down the stairs a couple dozen times. Once everything is working, then turn the power off and install the thermostat at its permanent location. The thermostat requires a two-wire cable to run 24 volts to the thermostat location. It cannot run on batteries like the other accessories, which require no wiring. I didn't find the wiring difficult. I just opened up the furnace and made sure that the G terminal on the furnace was connected to the G terminal on the wiring interface, etc. One tip - hook the thermostat to the wiring interface with a short length of two-wire cable while setting everything up to prevent running up and down the stairs a couple dozen times. Once everything is working, then turn the power off and install the... » Read More The thermostat requires a two-wire cable to run 24 volts to the thermostat location. It cannot run on batteries like the other accessories, which require no wiring. I didn't find the wiring difficult. I just opened up the furnace and made sure that the G terminal on the furnace was connected to the G terminal on the wiring interface, etc. One tip - hook the thermostat to the wiring interface with a short length of two-wire cable while setting everything up to prevent running up and down the stairs a couple dozen times. Once everything is working, then turn the power off and install the thermostat at its permanent location. « Show Less
2218939
The instructions for wiring are totally inadequate. Google the device and look for a wiring diagram. Once wired correctly, it will switch automatically between heating and cooling (two different outlets).
897569
The are no batteries in mine, not sure why the description says that it requires batteries. It would be better to buy the less expensive heat-only Honeywell CT87K, URL: http://www.amazon.com/Honeywell-CT87K-RoundHeat-Manual-Thermostat/dp/B000EANORW/ref=pd_sim_sbs_hi_1