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Hello, I have a Timex Heavy Duty appliance timer. I just bought it. It is model # 12-881. It has a 1875 Watt capacity for 15 amps and 120 VAC and 60HZ. I have an Amana air conditioner around 3 years old in my living room. It is 10,200 BTUs. There is a note on it saying, "Use on a single outlet circuit only. Connect unit to a circuit protected by a 15 amp delay fuse or circuit breaker." From this air conditioner I want to connect a 9 ft. extension cord which handles 125 V and 15 amps and 1875 Watts. I want to plug the extension cord in to the new Timex timer mentioned above and turn the Amana air condtioner on around 6:30 p.m. this Wednesday night and turn it off around 9:00 p.m. on Saturday night. I want to set the timer to have the air conditioner on for a maximum of 10 hours each day. Is this safe? Should I do this? Would it be better to have the air conditioner on for less hours each day? It's not supposed to be that hot so we certainly have more flexibility. If so, how many? During those hours the air conditioner is running should I feel the timer and the extension cord and where the two meet to see if it's gotten warm or hot? What would I have to feel there to indicate there could be a problem and I should turn it off? I thank you very much for any assistance you can give me. Take care. Alan Magill

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Alan there is a few problems with what you want to do. First off you should never run an A/C on an extension cord. Secondly the A/C will draw more at startup than after it gets going. You may be fine with this 15 amp timer but make sure that the A/C does not require more than 1875 watts at startup. If you must use an extension cord then buy one that is just long enough to reach and purchase at least a 12 gauge one. 10 gauge would even be better. I would recommend you leave the A/C on all the time and just set the thermostat to a temperature of say 78 degrees. By turning it off entirely it will work very hard at startup to cool not only the air but the furniture walls and everything else in the area it is located in down to a comfortable temperature. I personally would forget the timer and just use the A/C thermostat. Of course if you want the home comfortable when you arrive and do not want it running at all when you are not there then a timer is the answer. I just do not think you will save much money in that manner as the A/C will have to work so hard to cool everything down and will run continuously for hours. You could check it both ways and see which was the most cost effective.

Posted on Sep 07, 2010


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I purchased a 1875 watts Timex Heavy Duty timer Model # 12-881 to connect to my 1200 watt water distiller. The timer is burned and has melted where the distiller was plugged in. We were furtunate...

Timex 12-881 timer has 3-prong outlet and is rated 15amp 1875 watts.

The timer melted because too much amperage was drawn across the connection and timer got hot.
Different things can cause this.
Phony rating, and/or mis-manufactured timer.
Defective timer.
If distiller has a motor, then it will draw more amps at start-up.
Timer is rated for incandescent light bulbs only.
Many timers say 1875 watts resistive, but instruction sheet will show 1000Watts incandescent and 1/4 HP horsepower.
Timer is plugged into extension cord.
Cheaply built product, not meant for constant use.
Timer outlet and distiller plug did not meet firmly, so connection heated up.
Turn off distiller before plugging into outlet so no spark is at the connection point.

I recommend appliance timer for operating appliances.
For example Intermatic HB 113 timer.
Also heavy duty portable timer like Intermatic P1121

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1250 watt tungsten: Tungsten is the tungsten filament in light bulb.
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I'm assuming you mean the power cord. Most of these units use standard power cords. Take it to an appliance parts store to match it. If you can't find the cord you want, extension cords called heavy duty are available. Be sure that the power draw on the label on the cord equals or exceeds that of the unit. Some cords use 'amps'...some appliances use watts. To get amps from watts: take the wattage, divide by volts (typically 120) to get amps. A 1200 watt appliance uses 10 amps. Use the next highest rating.

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