Does this require a c wire?
493454
If you have a 4 wire system you simply install a jumper wire at the furnace. You will lose the ability to run " fan only " from the thermostat. FAQs on venstar website describe wire hookup.
493455
Yes it does need the C wire as that is the common for the 24v it needs it to power it up. It has no other power source like a battery like some have. Hope this answers your question.
872621
yes it does require wiring to a power source, block is just that a block with no wires.
1427560
I don't think so. The units I bought only has wires to AC. No other wires or terminals were on the unit.
2035909
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, AZ PS remember to shut off A/C unit breaker before attempting to install.
2105437
You won't need one. Worst case you can splice with the wiring it comes with.
870433
It requires 5 wires. One is the C wire which is 24 volt power which is necessary because it has no batteries.
1264983
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, wirebrings 24 VAC power to the thermostat. Many older mechanical or battery operatedthermostats 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 andcheck 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 systemmanual 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. 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, wirebrings 24 VAC power to the thermostat. Many older mechanical or battery operatedthermostats 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 andcheck 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... » Read More 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, wirebrings 24 VAC power to the thermostat. Many older mechanical or battery operatedthermostats 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 andcheck 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 systemmanual 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. « Show Less
1295134
Nope. But my experience with it is, its a hit or miss if you use it. I just wire mine directly.
1260016
Yes it has to be wired. It should be in the sales literature or specifications.
1463616
Yes, but if I remember correctly you'll need a short jumper wire. No biggie.
119948
It does not. This switch is for single pole circuits. It is also indoor use only.
572924
Yes, the quick start guide mentions an A/C adapter may be used but is not included.
417030
I think it does not need it. But instructions say ground wire is highly recommended. My take: since there is circuitry imbedded in the unit, the ground keeps it from getting fried. I wouldn't install without ground.
792504
oh yes it does require at least a 4 wire system. you would need to add them
1848499
It does require a C'wire power. There are other Z-wave thermostats out there, that are battery powered and should work in your case. I have one on my upstairs HVAC by a company called 2GIG.
861376
No, but you will need to turn that breaker off. Use a meter and double check that there is no power on that circuit. If in doubt, then pull the wires for that circuit.
1049558
Not at all. It was an easy install. I had the wire go from the battery to the switch. The switch had a ground, then went from the switch directly to the light. Then I had to ground the light. It was super easy. I put an inline fuse between the switch and the light but I don't see the need for it. All you need is some wire and wire connectors and you're set