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Topic: Micro-air Easy Start Installation - Wiring Diagrams for Duo-Therm and Exmple A/C (Read 2187 times) previous topic - next topic

Re: Micro-air Easy Start Installation - Wiring Diagrams for Duo-Therm and Exmple A/C

Reply #25 –
Might try some adjustsable time delay relay on the evaporator fan and condenser fan circuits 5 & 10 seconds might help. Invertor compressor lock rotor (inrush) amps are approximately only 10% more than full load amps. This is the future for RV a/c units. Can you build a 12,000 btuh unit that starts on 10 amps inrush and 900 watt operation? Yes with widely available components today.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Micro-air Easy Start Installation - Wiring Diagrams for Duo-Therm and Exmple A/C

Reply #26 –
Quote from: Blinded04 –
I'm starting to think that, rather than try to modify the existing A/C unit to be within the specs of your system, it may be safer to buy a low energy A/C that is actually within the specs.  There is a solar company out there that sells a low-energy A/C unit to go along with the solar kits it sells - but my google-fu is lacking this morning and I'm having trouble locating it again.

I think you are talking about this unit from Kingtec Solar but it operates on 48v DC power which is going to be a problem for you. 

I find it kind of embarassing at how behind the times the US RV market is regarding this.  Check out Dometic Australia's inverter air conditioner that probably will never make it to the US market.  Dometic EU seems to have lots of different options that also aren't available in the US.  All the improvements to the US market have been small alterations of the same design as we had 50 years ago.
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Robert
Build # 5304
1998 34' U270 Cummins 6CTA8.3

Re: Micro-air Easy Start Installation - Wiring Diagrams for Duo-Therm and Exmple A/C

Reply #27 –
SEER numbers are bogus ratings that are manipulated by the manf, and ARI. They are established by one off prototypes. EER numbers are less manipulated. Friedreichs makes a 14 eer 115 vac unit
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake
 

Re: Micro-air Easy Start Installation - Wiring Diagrams for Duo-Therm and Exmple A/C

Reply #28 –
Quote from: turbojack –
Are you able to run the ac long enough to cool down the coach? How long do you leave it running?

We usually run it for about an hour.  Not really helpful in 95 degree weather, but perfect for getting coach from, say, 86, to a more more reasonable 78-80 right before bed when the exterior temperatures wouldn't allow for the kool matic and a few open windows to accomplish the same.
James
w/ DW Erin, sons Gideon and Tobias, cats Oscar & Oliver
Fulltime 1999 U270 34' #5508