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Window ac can it be used on a timer?
- Thread starter sixty4
- Start date
pattenp
Well-known member
If the units are old enough that they don't have electronic controls a timer should work if timer is rated for the loads. Newer electronic controlled when power is cut will not restart when power returns.
If the units are old enough that they don't have electronic controls a timer should work if timer is rated for the loads. Newer electronic controlled when power is cut will not restart when power returns.
sure about that? many electronics remember where their settings were,
I use a window unit in my garage. It's an old mechanical "on/off" unit. It could be controlled with a timer (I use a network thermostat and a relay to turn it on and off remotely).
That being said, I have a digital AC unit in the house with a remote. When you unplug it and plug it back in, it beeps, lights up all the LEDs, says "88" then shuts down (initialization sequence). It would NOT work on a timer.
That being said, I have a digital AC unit in the house with a remote. When you unplug it and plug it back in, it beeps, lights up all the LEDs, says "88" then shuts down (initialization sequence). It would NOT work on a timer.
nadogail
Well-known member
Can you leave the unit on with the call for cool on a timer? The unit would be in Standby until the "Call for Cool" closes.
wyliesdiesels
Well-known member
sure about that? many electronics remember where their settings were,
yes some air conditioners will not restart after a power outage despite remembering the settings...
pattenp
Well-known member
sure about that? many electronics remember where their settings were,
Well you got me thinking so I had to go try my 2 window units. My cheapy 5000 btu doesn't return to operating but my 25000 btu does. I guess the better ones do resume operating. So my comment maybe the exception.
TuxThePenguin
Well-known member
I have Friedrich Chill and Chill Plus ACs which do remember their power status; if power is cycled, they will resume their previous state.
If I were to automate them, I would sooner do it via the remote controls; I would use some device to learn their signals and then set up something to replicate them. I bet some air conditioner brands have probably partnered with some "smart home" companies and there are probably products out there that can be set up easily to do this so you probably wouldn't need to break out the Arduino kit.
But I could technically use a heavy duty relay or contactor. If using a device that uses this sort of technology, make sure it's rated to run a motor and/or it is rated to a much higher current than the nominal current of your AC, so that it can handle the higher startup current.
If I were to automate them, I would sooner do it via the remote controls; I would use some device to learn their signals and then set up something to replicate them. I bet some air conditioner brands have probably partnered with some "smart home" companies and there are probably products out there that can be set up easily to do this so you probably wouldn't need to break out the Arduino kit.
But I could technically use a heavy duty relay or contactor. If using a device that uses this sort of technology, make sure it's rated to run a motor and/or it is rated to a much higher current than the nominal current of your AC, so that it can handle the higher startup current.
Last edited:
dlwilson
Well-known member
A friend has a garage set up as a gym at one of his rental properties. We use an electronic timer to have the AC come on twice a week so it is cool when we meet there. It is a large window unit with electronic display and remote control, but the AC remember that it was turned on, even when it is unplugged. I was surprised that it works that way, but it does. The AC is plugged into the timer, and it's able to turn on the AC. I don't recall the brand of AC.