a/c

Mike · 12-20-12, 07:10 PM

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

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.

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.

12-20-12, 07:10 PM	#1
Mike Lurking Renovator Join Date: Dec 2012 Location: Ont Posts: 3 Thanks: 1 Thanked 1 Time in 1 Post	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.

12-20-12, 07:43 PM	#2
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Any idea how much energy the A/C system pulls while not in use? __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

12-22-12, 07:24 PM	#5
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	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. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

12-22-12, 05:54 AM	#4
launboy Apprentice EcoRenovator Join Date: Mar 2011 Location: SE Wisconin Posts: 107 Thanks: 3 Thanked 11 Times in 9 Posts	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

11-09-13, 09:34 AM	#6
Servicetech Apprentice EcoRenovator Join Date: Nov 2013 Location: Moore Oklahoma Posts: 267 Thanks: 108 Thanked 23 Times in 21 Posts	Most residential central AC units do not have crankcase heaters. Zero power used when turned off.