Will this WIFI thermostat work with batteries only? I don't have power source.Are they lithium batteries? Thanks
253810
per the installation manual, you have to have a wire from the furnace that supplies the power.
253811
My best guess? No! I was surprised when I replaced my non-WIFI version of this thermostat with the WIFI version. The three double or triple A alkaline batteries in the non-WIFI were replaced by a single, flat, sort of mercury-looking cell in the WIFI. So this single cell is not going to power anything very long - maybe just preserve settings in a power failure. A final comment is that Honeywell has a surprisingly good email technical assistance system. I would suggest asking the experts.
253812
Hi, I recommend you contact Honeywell for the "official" answer. I believe it clearly states in the manual that it needs a power source. The batteries are just to keep from losing the programing and to keep the clock running.
253813
No you need 24 volt to run device especially. When it uses wi fi. And require power all the time to cummnicate
253814
Your power source is integrated into your thermostat wire. Its not a separate power source. Most HVAC systems have a 24v power integrated. The battery is just a back up and to keep your settings.
253815
The battery in the thermostat is for the internal clock and settings memory. To use the WiFi you must power it externally. You can download the users manual from Honeywell to see the specifics.
138274
t requires 2 aa batteries to store info, and it gets wired up to the back panel. The front of the thermostat can be detached from the back panel. I had my a/c guy install the unit, but it's not very hard to do it. It comes with instructions.
1116220
You probably got mine...Mine works when it's not hooked up. Sounds like you got a model without a battery. That is what I wanted because it is supposed to do better in the heat......Delivered the wrong one to me. I contacted them about it and no response.
1662311
The batteries are meant as a backup in case power fails as I believe it often does in case of fire. In my house I've rarely had a power outage so I'm not sure how long these units would work on battery power alone. I replace my batteries every year.
1188926
sorry i dont have that thermostat but it should keep you programing as long as the batteries are good 30 years in the hvac business says thats what its for
519947
No they cannot, I perfeer that they dont, wireless means batteries and if your application for this system is home security rather than a business you will have to climb up a latter and change the batteries at least every 6 months. I dont know where you live but for me changing batteries in the middle of January would really suck
2056048
This is a wired thermostat. While the unit does have internal batteries, I believe that they are designed for backup since the primary power should come from your system.
1264980
I suggest you download the manual and wire it per the instructions in the manual. Important! The Wi-Fi thermostat requires a C wire to operate. The C, or common, wire brings 24 VAC power to the thermostat. Many older mechanical or battery operated thermostats do not require a C wire. If you don't have a C wire, try: * Looking for an unused wire that is pushed into the wall. Connect that wire to C and check that it is connected to the 24 VAC common at your heating/cooling system. Note: Not all heating/cooling systems label the 24 VAC common C. Check your system manual or contact the manufacturer to find out which terminal is the 24 VAC common. Or, call a qualify service company and have them solve the problem.
113628
Yes, this one does, it uses the batteries to run the clock, and programing. It is a great thermostat, mine is fantastic........Mark
1358021
This itme only works with electricty. There is no place for batteries for this fan.
1713660
OK, first this is a thermostat, it closes relays when the temperature is right and also the fan relay. The battery only powers the display and relay when you hit temperature. Don't worry about the voltage 12, 24. the thermostat connects the + from either the air or heater to the heater wire or the ac wire or the fan. If you go to modmyrv.com they have instructions there are only a few AC and heaters they use. Sorry for the long answer but I'm an HVAC guy, and this is not rocket science.
2121935
There are no batteries used... the lights and sensor are powered from the wired house power...
298238
It comes with a power supply for the wall outlet and yes it requires batteries only if you want to use it wirelessly.
1453482
Totally disagree with other poster. I've had these installed for months and I've never gotten more than a week out of a set of 18 AA batteries. Has nothing to do with usage. The issue is the Wi-Fi receivers are powered at all times waiting for a command from the controller. This kills batteries far too quickly. With new batteries, the system is wonderful, but that lasts only several days to a week or so. I no longer use them and will replace with wall-powered units as part of kitchen renovation. By the way, if you have to try these, get them from a warehouse club for about half the price asked here, and use them in time to return them for a refund when you see how short a time the batteries last.
433465
this thermostat requires 2 wires from the control unit for power- no batteries. The "thermostat" unit is really a touchscreen control unit- all the real brains are in the control module, which is best located close to the furnace- but can technically be anywhere you get good reception for the wireless units (be aware though that add-ons like sensors need to be wired into the control module- so plan ahead).
1349043
Mine uses only D Batteries, no electricity. It came in very handy during last nights high temperature electric outage.
2056046
If you don't mind that the back light will not be constantly on, you can run this thermostat off of batteries.If you have the wire providing power to the thermostat, you can set the back light to stay on which is very nice at night. The batteries at this point provide backup, but then if there is no power, the fan in the house for the HVAC system wouldn't be working either. It's just there in that case to hold settings including the time and date.