The description says this unit requires batteries. Can this unit run off just the common wire?
1565066
The thermostat does not use batteries. It runs off the 24V power, so a common is required.
1565067
I returned this; I think it was because this unit cannot use batteries and must run off a common wire -- which I don't have it my current (pun intended) setup.
1565068
No. It does not require batteries. It uses the 24 volt power from the HVAC unit.
909555
It runs on batteries, but it also can be directly wired without using batteries, if there is a hot wire in the location that you want to put it up.
1727038
This unit is operated with an extension cord. You would need to supply the cord yourself.
1082924
Short answer is "no". There are two wires coming out of the unit that you can basically connect to the terminals of a 12V battery (I used a car battery). You'd need to get a 12V power supply that plugs into the wall and hook it up to that if you wanted non-battery power.
1662691
This runs off of a low voltage transformer that plugs into an outlet. AC power... this won't run off batteries.
178929
Yes, but do not mix batteries, only use this style if not it will ruin the unit
544170
No, it needs to be wired into fuse panel or battery. They give yo plenty of length, but the wires are very thin. Still worth it!
381342
correct. It just needs to be charged occasionally. I do it over night so no wires hanging while in use.
1523480
It is not a portable unit and does not use batteries. It must use the power chord to operate.
1963590
This unit is powered from the voltage of the wire. No battery. There was is another model number that bruns from battery. I install those models. Just search it.
1398768
This unit does not run on battery. This unit runs on the included AC-DC power cord.
566334
No, it will cause the unit to short out, you will need to use a voltage converter
1463148
This does not require a common wire. You can wire it that way if you like. I've noticed that the AA batteries have lasted as long as I've had the product. And that has been over 7 months. I've noticed the time is starting to fall behind a little so it may need new batteries soon. So I would say around 6 months for sure.
2175359
It needs both, you can run it for a short time on just batteries but some features will be missing. The batteries are needed to maintain operation when power fails. You should always have AC power and batteries.
614320
The unit can be plugged directly into the wall and run without batteries. That was a BIG deal for me and I could not find the answer to that myself. So glad to tell you... YES! And I highly recommend this unit. Also, you can charge both batteries at the same time.
1551503
just the in side unit . but it will also take batteries i think 4 c batteries and will last for years on a residential application
1780663
Yes. You would have to have an electrician wire in a capacitor!! Also single phase!! I have run mine from my car battery with a $30 converter!! Did this during a storm.