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pianotuna's avatar
pianotuna
Nomad III
Jul 29, 2019

air conditioner without and with autoformer

Hi all,

Ambient temperature 73 F

Shore power 30 amp with no other person providing a load. No load voltage 117.2 volts.

Loads: Dometic Fridge, and Magnum inverter charger. No charging being done at the moment.

The Air Conditioner is equipped with a microaire unit.

No autoformer:

328 watts 117.2 v (fridge on 120 volt setting)

1367 watts 109 v recovering to 110.2

With Sola Basic autoformer

327 watts 117.2 volts

1426 watts 114 volts recovers to:

1501 watts 121.2 volts

After running for 20 minutes:

1750 watts 120.2 volts.

There is a difference in the sound of the air conditioner when I listen outside the RV.

I have tweaked the Sola Basic to do first boost at around 113 volts.

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