Quote:
Originally Posted by Xringer
What if you had a few spare compressors laying around??
Compressors that were going to be tossed in the trash next summer..
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Maybe another thing to consider, would be compressor life.
If compressor #2 only ran 50% of the time, wouldn't the system last twice as long?
(Assuming that running up the compressor hours puts wear on it's motor etc).
A little off-topic:
I'm basing that 'life' idea on my Sanyo Theory.
Which is: Running both Sanyos at 450 watts(each) to keep the house warm,
is better then leaving one unit off, and running the other at 900 watts..
Since they don't come on as much (run time), with both of them running, it's easier on both.
If one unit was going to last for 5 years, maybe both will last for 10 years..?.
Plus, when it gets really cold, and each unit is running at .8 to 1.2 kW,
one Sanyo alone would need to crank up to 1.6 to 2.4 kW.
(Above 2.4 kW, the 10A breaker would kick in).
It seems like it would be better not to run them at high power levels..
My pin-hole R410A loss experience tends to make me think that high power/high pressures are hard on copper tubes..
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No compressor likes a high number of start/stops per hour and they are most efficient and last longer when run close to continuously so I would try to keep one in an optimal (lower dP) for as long as possible.
I think I have some sanyo curves somewhere. Most fridges here are 134a, I believe.