JC refrigeration AC or DC upgrade?
Just wondering if any of you could tell me whether I should buy the AC or DC conversion for my dometic rm2652. We are on shore power almost always except for traveling. Would the truck charge batt...
Forum Discussion
rdhetrick wrote:
Because the conversion isn't an absorption refer - it's a compressor similar to a household refer.
NRALIFR wrote:
That’s probably what I would recommend. No DC-AC conversion loss.
Every 12/24VDC compressor refrigerator actually INCLUDES its own inverter ! The incoming DC voltage is converted to 3 phase AC and sent to the compressor motor. 3 phase is used because it is a much more efficient way of powering a motor.
Just to be clear, this "built in" inverter is specially designed just for this application. The AC output voltage does not have to "match" any "standard". It can be whatever voltage the inverter and motor designers choose ! Also, many (most ?) of these inverter are variable frequency meaning that the compressor motor itself runs at different speeds as the required.
If I lost you, a DC compressor refrigerator is likely more efficient than a straight up residential AC refrigerator powered by a separate inverter.
