Question about Dryers
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Posted on Jan 02, 2017
You will not find any service manual. You can try www.engelaustralia.com but I doubt it will help you. By the sounds of it your 12vdc oscillator is gone, it is usually a K3320 or similar on the old boards. On the new boards you would have to replace the board. G luck
Posted on Apr 20, 2009
SOURCE: what is the cprimary load
Ohm's law tells us that: volts = amps x resistance and watts =volts x amps. Watts (300) = volts (240) x Amps (?); or 300 / 240 = 1.25 Amps That means the inverter can supply up to 1.25 Amps to a 240 volt load.
The primary is 12 volts, this is just 1/20th of the secondary 240 volt output. Since the best you can ever get is 100% efficiency -this means you'll need to supply 20 times the current. 1.25 Amps (at 240V) x 20 = 25 Amps (at 12V). As a check, from above Ohm's law that states Watts=Volts X Amps we get: 12VDC x 25Amps = 300Watts. Check!
Some side notes. The Ohms law used above is for DC circuits and purely resistive loads on AC circuits. I do not know what your 1.25 A @ 240VAC load is - but I suspect it won't be purely resistive. Also, since we're working with an electronic inverter as opposed to a transformer and DC rectifier there are some things that push losses higher. You might need to provide a 30 Amp 12 VDC source voltage in order to provide the 1.25A @ 240VAC output. Lastly, I wouldn't not run the output at maximum for long periods of time - or at all. 1 Amp @ 240VAC would be much better.
I hope this answered your question & good luck! Please rate my reply - thank you.
Posted on Mar 09, 2011
Depends on how often and long the unit is left open, rule of thumb, fridge 4 deg C, freezer - 18 deg C.
Posted on Mar 03, 2016
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