TT plugged in at home?

myredracer wrote:
Anyone attempting to run an AC unit on a 15 amp circuit or are occasionally or frequently doing this are not meeting the min. requirements specified by the AC manufacturer. The fact that you CAN get your AC unit to run does not mean that all is well.

SoundGuy wrote:
To suggest that a standard 13,500 BTU roof mount A/C cannot be successfully started and run by a 15 amp breaker protected circuit is simplistic nonsense.

myredracer wrote:
This also is incorrect. I'm an EE and I will bet my degree on it.

Sorry for your loss. :W

As you said yourself -"A Dometic AC unit with a voltage rating of 115V should be able to operate satisfactorily at 103.5 to 126.5 volts and without incurring damage.

Of interest here is that the two common EMS units shut power off at 102 volts (Surge Guard) and 104 volts (Progressive Industries). IMO, 102 volts is too low. The figure of 104 volts could very well be based on the minimum allow voltage under ANSI & NEC (104.4)."

In my test today nominal unloaded source voltage was ~ 121.5 vac, lowest voltage when the compressor first ramped up to speed was ~ 108 vac and settled in at ~ 114 vac with no other loads on the circuit and as such was nowhere near causing my Progressive EMS-HW30C from shutting down power to the trailer. As I recall, LRA for my particular Dometic Brisk II is ~ 65 amps or just 4.3x the breaker's nominal 15 amp rating, a TM breaker that won't instantly trip until the surge load is 7x that rating, or 105 amps, explaining why it never trips running my 13.5K Dometic A/C.

MY bottom line, repeated - with a nominal unloaded source voltage of +/- 120 vac, reasonable cable length, and adequate cable gauge there's absolutely no reason one can't successfully start and run a 13,500 BTU A/C unit from a household 15 amp circuit provided there are no other loads running on that circuit at the same time.