minimum voltage to run A/C

In the US its 120v and 240V.Always has been and always will be.

Anyone that says 110v or 220v is wrong.

You should not have 112 volts from the home... Call the poco...

By the way have you checked the Hz?? being 60 hz is more important then the voltage.

I would not run anything in the camper. As well as some things in the home...Motors and such will fail sooner being subject to low voltage.

Range of typical 120V appliances is + or (-) 10% from 120V.

So bottom would 108V up to 132V.

However for BEST results and least wear and tear on your appliances you SHOULD only operate your appliances as close to the 120V or a bit ABOVE as possible.

With that said, you NEED to STOP using your A/C until you locate and fix your low voltage condition. 102 is too low and will cause the compressor to overheat.

You may want to call in an electrician to check your incoming voltages from the power company..

Chances are you may have bad wiring (corroded connections or outlet) or to light of wiring (14ga) along with to much length between the outlet and breaker panel for the load.. But you could have sagging voltage coming from the power company.

I ran into similar problem years ago when I upgraded my satellite system.. When my whole house A/C turned on the sat receiver would turn off..

After reading the sat manual I discovered that it required a min of 108V.. Plugged a meter into a outlet on the sat circuit and when the A/C turned on the voltage dropped to 105V..

I went to the breaker box and put the meter on the incoming power company service entrance wires and found the voltage was sagging from the power company..

Had the power company come in, and they noted the same problem..

They went to the transformer servicing my house and found the LINE Voltage feeding the transformer was sagging also..

They ended up installing booster transformers two miles away from my house to fix the sagging voltage.. The power company told me that the lines needed upgraded due to the increased demand from all the new homes that had been built over the years.. So far I have never seen the power company change the lines and the boosters are still in place.

Thanks for the quick replies. I see household current referred to as 110, and sometimes as 120.
I am used to seeing it @ 115.
Does this sound like I should contact my power Co. ? Or will they just tell me " don't be stupid, it's a 110" system?
Thanks for the link by the way. I printed it out for future reference.

The Brisk air units are rated 115 volts. You should not run them lower then 90%(103volts). Even at that other loads could drop the unit below the safe margin. I would not run it less then 108 volts.
Brisk air
The shore power should be close to 120 volts. That would put the operating voltage of the AC with 10% at around 110 volts.

Motor is rated 115 +- 10% so 103.5v at the motor. 102 in the RV is too low IMO.
You need a powermaster voltage booster. Although 112 at the house seems low, mine runs 120/122.

Are the batteries charged and the fridge off? Try all breakers off except main & air conditioner.

Moved from technology corner