Well folks, this is the third freezer conversion I've made and am providing some info here for those who may be interested.
The first was a small upright that I found to be a pain in the butt when it came to reaching down into the bottom layers to retrieve the milk etc. And even though I had installed shelves, things still got lost and forgotten in the bottom until it was too late. Thus the next, upright five point something cu ft, which worked great! However, after a year of struggling with its small size, comes the latest and hopefully last!
This one is a Sears 8 cu ft, Model 461-99192. And yes, I've modified the starter circuit so it will start and run off the Morningstar 300 inverter, but that's another story for a later time. Right now I want to share what I consider to be it's amazing electrical efficiency as a "fridge".
I've had it plugged into my Kill-A-Watt checking consumption, and 12 hours ago, reset the meter. Now, 12 hours later, it has consumed, get this: 0.12 Kwh! Yes this was overnight, but the door was opened a couple of times after resetting the Kill-A-Watt. I'll be keeping an eye on this for a few days, but so far, this is roughly where it's consumption seems to be heading. When I first did the conversion, it only ran for about a minute at a time, the thermostat I had was too sensitive, and since the compressor's consumption is higher during that first minute, (up to 200 watts after start, settling to 125 after one minute) the average consumption was at least twice what it is now that I've decreased the sensitivity of the thermostat so it runs roughly 5 minutes each cycle. It remains off between cycles, roughly 45 to 50 minutes or longer unless the door is opened. Haven't timed it exactly yet. By the way, trial and error has shown that the best value of start capacitor, for those who might use one (requires electrical modifications that will void warranty) is 74 MFD. This value is hard to come by, but critical if further converting to run off the SureSine 300, but for higher output inverters, or on grid operation, a standard 88 - 108 MFD will work wonders. BTW, the compressor model for these start capacitor values is: ASF51U6. The manufacturer may not be using the same compressor in all of these freezers, and different compressors may require a different value capacitor if you decide to do any modifications. As I've mentioned in other posts, converting to run off the SureSine 300 requires additional modifications to the starter, including the use of an autotransformer, or a regular 120 to 12 volt transformer rated roughly 100 VA and wired as an autotransformer, and relays to engage it during the start sequence. But that's not something for anyone not really familiar with electronics etc to attempt.
My main thing here, is to show the amazingly low (to me at least) power consumption of what is now an 8 cu ft fridge. 120 watt hours for a 12 hour period. That's an average of just 10 watts continuous! My satellite receiver uses more than that!
I'm on the run, so that's it for now.