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Old 12-20-12, 08:10 PM   #1
Mike
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Default a/c

turn off the breaker for the a/c unit in the off season for a hydro savings also electric stove breaker while on holidays etc.

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Old 12-20-12, 08:43 PM   #2
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Any idea how much energy the A/C system pulls while not in use?
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Old 12-21-12, 08:51 PM   #3
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Quote:
Originally Posted by Daox View Post
Any idea how much energy the A/C system pulls while not in use?
Well, I read it somewhere...wish i could remember where. Hate to quess, but i'm quessing $20-25 a season. Whatever the amount was, i jumped up and turned the breaker off!....so I thought it worthwhile at that time.
If I find the source i will repost.
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Old 12-22-12, 06:54 AM   #4
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Some A/C's run a Crankcase heater on the compressor that can draw from 40-100w to keep the oil warm(forgot where I read that). This matters if you plan on running the A/C, but if it's going to sit idle for the next 6 months, no point in keeping it warm.

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Old 12-22-12, 08:24 PM   #5
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Older Sanyo Mini-splits cool&heat units have the Crankcase heater on the compressor, if the unit is 24k BTUh and above.
Not sure about the AC (cool only) models. I don't think they even need it.
Especially since they are turned on when it's already pretty warm outside anyways.

I've noticed mine use about 40W each (I have two units), but they seem to be temperature controlled.
If it's cold night followed by a warm day, I'll check the TED and sometimes, I'll see Zero watts displayed.

But, even without the crankcase heater on, there is still the electronics loads
of the controller boards in the indoor and outdoor units.
My guess is a few watts at the most. Can't see that low on the TED.
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Old 11-09-13, 10:34 AM   #6
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Most residential central AC units do not have crankcase heaters. Zero power used when turned off.

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