ktmrfs wrote:
Two typical Max draw for many AC units is 13.5A or more so running two violates that.
It's important to remember that an air/con unit will try to draw roughly the same wattage regardless of voltage.
So if you have a 1600w continuous draw per unit:
- At 120v, you would need 13.3amps (26.6amp for 2)
- If the voltage drops to 110v, you now need 14.5amps (29amps for 2)
And as it happens, on the hot summer weekends when you really need 2 units, everyone is running their air/con so voltage tends to sag, meaning your amp draw goes up. So what works in a practice run on a cool weekday may fail when you really need it.
Also don't forget you need to kill off everything else running.
- Fridge that's another 2-3amps
- 40amp (12v) battery charger that's another 4-5amps
- Cell phone/laptop bricks that could be 1-2 amp.
- TV/Microwave in standby but off could be another 1/2 amp.
TurnThePage's idea of running a second line to a separate 20amp outlet on the pedestal and running a smaller air/con unit directly off that is a better idea if you don't want to upgrade to 50amp.
