50 amp TT with generator

[Pammuela]

We just purchased a TT (2021 Jayfeather 27BHB). It is a 50 amp trailer and we have a Westinghouse I4500 generator. Based on the output of the generator it should run our AC, (13500 BTU) but the generator only has a 30amp plug and we have an adapter. I have 2 questions - 1) should we be using an EMS with the generator and 2) is our generator big enough to run our AC?

Thanks in advance for your help!

[Bobbo]

DrewE wrote:

valhalla360 wrote:
Usually, 2 air/con units are on separate legs of the 240v, so you need to get power to both legs without creating a conflict between the 2 hots.

The standard 30A to 50A plug adapters will do just that.

I'm not sure what you mean by "creating a conflict between the two hots"; on most RVs, they are pretty practically independent of each other, only sharing the same neutral return (and, of course, safety ground). If you have any 240V circuits--which are not too commonly found in RVs--then they just won't have power when connected to the 120V supply since both legs are at the same potential all the time.

What he means is that the 2 air conditioners are on separate legs of the 50 amp system. Or should be. A 30 to 50 dog bone adapter puts them on the same (30 amp) leg. That is "creating a conflict between the two hots" since both A/C units may try to start up at the same time.

[DrewE]

valhalla360 wrote:
Usually, 2 air/con units are on separate legs of the 240v, so you need to get power to both legs without creating a conflict between the 2 hots.

The standard 30A to 50A plug adapters will do just that.

I'm not sure what you mean by "creating a conflict between the two hots"; on most RVs, they are pretty practically independent of each other, only sharing the same neutral return (and, of course, safety ground). If you have any 240V circuits--which are not too commonly found in RVs--then they just won't have power when connected to the 120V supply since both legs are at the same potential all the time.

[wa8yxm]

Depending on yoru generator it may be possible to run TWO Air conditioners but since I do not know the genny... I can not be sure.

[valhalla360]

theoldwizard1 wrote:

valhalla360 wrote:
If it's a single air/con unit, yes. If it's multiple air/con units...maybe, maybe not.

Probably with a MicroAir Easy Start on both !

With soft start and also check how things are wired up, it's possible. Usually, 2 air/con units are on separate legs of the 240v, so you need to get power to both legs without creating a conflict between the 2 hots.

[theoldwizard1]

valhalla360 wrote:
If it's a single air/con unit, yes. If it's multiple air/con units...maybe, maybe not.

Probably with a MicroAir Easy Start on both !

[valhalla360]

If it's a single air/con unit, yes. If it's multiple air/con units...maybe, maybe not.

[time2roll]

1) NO
2) YES

[bob213]

stickdog wrote:
Quite possible your EMS would not allow your genny to power your trailer.

If your EMS shows an open ground just use a neutral bonding plug which you can make yourself.

[stickdog]

Quite possible your EMS would not allow your genny to power your trailer.

[Lwiddis]

I have a Westinghouse generator. Well made, lasts if you regularly service it. Enjoy your new TT. Consider reading the basics on RV electricity.

[pianotuna]

no need for ems

yes it should run the air.