Do you need a C wire for this thermostat? Or can I replace a normal thermostat with this unit without running a third wire? Also, can you set and lock temperature range? Thank you.
1191906
I didn't have a C wire when I installed my thermostat. From what I can figure, the C wire is used for power, and the batteries will kick in when the power goes out. My previous thermostat was programmable with batteries. The batteries lasted a long time in that thermostat.You can set the temperature range where you want and leave it. For some reason, my Vera 3 set up 3 thermostats. 2 are like ghost thermostats, and 1 is the real one. But, I can access and control that thermostat from anywhere. I also set the poling time lower so that it checks the temperature on the thermostat more often. I think I set it at 1/2 hour. I didn't have a C wire when I installed my thermostat. From what I can figure, the C wire is used for power, and the batteries will kick in when the power goes out. My previous thermostat was programmable with batteries. The batteries lasted a long time in that thermostat.You can set the temperature range where you want and leave it. For some reason, my Vera 3 set up 3 thermostats. 2 are like ghost thermostats, and 1 is the real one. But, I can access and control that thermostat from anywhere. I also set the poling time lower so that it checks the temperature on the thermostat more... » Read More I didn't have a C wire when I installed my thermostat. From what I can figure, the C wire is used for power, and the batteries will kick in when the power goes out. My previous thermostat was programmable with batteries. The batteries lasted a long time in that thermostat.You can set the temperature range where you want and leave it. For some reason, my Vera 3 set up 3 thermostats. 2 are like ghost thermostats, and 1 is the real one. But, I can access and control that thermostat from anywhere. I also set the poling time lower so that it checks the temperature on the thermostat more often. I think I set it at 1/2 hour. « Show Less
1191907
I didn't have a C wire when I installed my thermostat. From what I can figure, the C wire is used for power, and the batteries will kick in when the power goes out. My previous thermostat was programmable with batteries. The batteries lasted a long time in that thermostat. You can set the temperature range where you want and leave it. For some reason, my Vera 3 set up 3 thermostats. 2 are like ghost thermostats, and 1 is the real one. But, I can access and control that thermostat from anywhere. I also set the poling time lower so that it checks the temperature on the thermostat more often. I think I set it at 1/2 hour.
1191908
Yes, I have it installed without a C wire. The power comes from the batteries. You can set and lock a single temperature. Programming requires linking to a z-wave controller.
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
1813079
Not sure since I use a forced air furnace (no a/c). Check your existing thermostat - I only hooked up 3 wires and it works great!
335820
This model doesn't and I doubt any of them do. The digital thermostat can be set to the temperature you wish, but it is not programmable. It has a high setting to get a room warm fast, a middle setting to maintain temperature and a low setting that doesn't let the room drop below 68 degrees. Use the high setting to get up to temperature and then leave it on the low setting (which costs next to nothing to run) all day or all night. When you come into the room, if it's not warm enough, you get go up to the middle setting to whatever you like. Run this way, you can maintain a good temperature all the time without spending much for power. I don't live in a cold climate, but while it was dropping down into the low 40s at night, I would run the heater as I describe with no problem. I can't vouch for really cold areas, however.
1656846
I'm sorry but I decided to change my whole system to a ductless heat pump (best thing I've done to this house). I actually never used the thermostat, ended up in my good stuff junk pile. Wish I could help more.
1260209
If you have two thermostats you should buy two combo sets. You can set a code to control each thermostat and unit. I have more than one and it works fine.
99244
James, There is a built in thermostat on the unit, with a little work you could rewire that control to a line voltage thermostat like the Honeywell T451A2007. I am happy with the built in control, I just use a step stool if I need to change the temperature.
1264979
No. Learn how to run a C wire. Not hard. I've done it twice. Just need to buy thermostat wire and feed it don the wall behind the thermostat and run it to your furnace. Search UTube.
250020
In so far as I can tell, there isn't any kind of a thermostat to regulate the temperature. I would guess that it's self regulating according to the room where it's located. There is a switch that you set to use as a refridgerator or as a food warmer and the other switch is for either A/C or D/C indicating a house current (A/C) or an automobile's current (D/C). There are cables for both and that's the limit of choices we have. I hope this helps. I am not an engineer---neither electronic nor choo choo. So far, this unit has performed quite well, and if it keeps up I will certainly recommend it to others.
2081076
John: With a 3 wire theromstat you most likely have 1 stage heat, 1 stage cool and common. I am assuming you have 3 thermostats in the house as well as 3 HVAC units or only one HVAC unit with 3 zones attached to it. If the former, 3 separate HVAC units, then I believe you will need 3 wireless set-ups. If only one HVAC unit with 3 thermostats then I am reasonably sure you will need a Honeywell wirelessTrue Zone panel and 3 wireless thermostats. Based on my research, Honeywell makes the best wireless set up--but it can become pricey. Hope this helps. Steve
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.
1264981
Honeywell has a video showing you how to substitute G wire for C wire. https://www.youtube.com/watch?v=F05lIaNTMB4 Basically, G wire is for operating Fan only mode (no heat / cooling). You loose the ability to use FAN only to power this thing. You have to change wire on the back plate as well as in the A/C-Heater. I'm not very skilled, but I was able to do it, just following the video.
90467
Hi Sheldon, It was very easy to replace. The directions are clear and easy to follow. Just determine what type of system you, look at the directions and follow. The terminals an the new thermostat are labeled for wire color. There is one "jumper" on the new thermostat that you may or may not need depending on the system you have. I did not need the jumper, so I removed it ... easy peasy.
1538023
Norm, did you find a thermostat that can offer what you were looking for? I'm looking for the same thing, 77 in the summer and 68 in the winter. I haven't seen one yet that can allow 4 daily temperature changes while maintaining seperate profiles for summer and winter
1081265
It's a standard thermostat that has minimal remote control and monitoring capabilities. You can change the temperature remotely, but then anyone at the location can change it right back. There is no electronic lockout of the units controls. You would need to put a lock box around the thermostat to prevent tampering, just like a standard thermostat.
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
2200709
It doesn't use a regular thermostat wire use the actual wire that powers it I'm guessing u could change the thermostat