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-   -   a/c (https://ecorenovator.org/forum/showthread.php?t=2689)

Mike 12-20-12 07:10 PM

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.:)

Daox 12-20-12 07:43 PM

Any idea how much energy the A/C system pulls while not in use?

Mike 12-21-12 07:51 PM

Quote:

Originally Posted by Daox (Post 26663)
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.

launboy 12-22-12 05:54 AM

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.

Adam

Xringer 12-22-12 07:24 PM

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.:D

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.

Servicetech 11-09-13 09:34 AM

Most residential central AC units do not have crankcase heaters. Zero power used when turned off.


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