Power for second ac unit

[Shoe1963]

I am seeking advice on how to run power for a second ac unit on a 2023 Heartland Trail Runner 27RKS. The trailer has 50amp hookup, it doesn't seem to have been pre wired for another ac. I also do not know what the labeling means in the breaker panel. Any advice would be greatly appreciated.

 

[cookie]

If you have 50 Amp service then there is a good chance that you are wired for a second AC. Your breaker panel appears to have a breaker for a second AC.
If you have a 14x14 vent in the ceiling of the bedroom you will need to remove the inside shroud and look for a piece of romex cable, probably terminated in a plastic box.
If you find that you should be good to go on installing a forward AC.

Peace
Dave

 

[hoefler]

AC-2 is for a second A/C. Pull down the trim ring for the bedroom ceiling vent, you will find a supply wire for it.
By the way, turn that breaker off, it is a open hot wire in your attic!

 

[wdk450]

I noted that the breaker labelled "AC1" is a 20 amp breaker, where the breaker labelled "AC2" is a 15 amp breaker. Both AC units are usually identical, so would need the same size breakers. Also, air conditioning breakers are a special HACR type, with a longer delay before tripping.

HACR (Heating/Air Conditioning/Refrigeration) rating — It can handle a brief surge in amperage that's required for a compressor or other devices to start.

Both air conditioners should NOT be both connected to the same feed phase to balance the electrical loading. On my breaker box, the 2 phases feed every other breaker. That is, looking at the breakers left to right you have phase A, B, A, B, A, B and so forth .

 

[Shoe1963]

Yes, that is why I was confused, and the breaker that turns off the current ac is one that is not even labeled.

 

[jerryjay11]

I noted that the breaker labelled "AC1" is a 20 amp breaker, where the breaker labelled "AC2" is a 15 amp breaker. Both AC units are usually identical, so would need the same size breakers. Also, air conditioning breakers are a special HACR type, with a longer delay before tripping.

HACR (Heating/Air Conditioning/Refrigeration) rating — It can handle a brief surge in amperage that's required for a compressor or other devices to start.

Both air conditioners should NOT be both connected to the same feed phase to balance the electrical loading. On my breaker box, the 2 phases feed every other breaker. That is, looking at the breakers left to right you have phase A, B, A, B, A, B and so forth .

If so, then the 20-amp breaker appears to have the microwave on it. Got the feeling that at least the first 4 breakers are mislabeled. And aren't RV AC units typically 115 volts? I do realize some may be 240 volts, but most are 115V from my experience.

 

[Shoe1963]

The breaker box is definitely labeled wrong, but thanks to the help here I found the wiring for the bedroom ac. Thanks everyone.

 

[hoefler]

Normaly the second A/C is a 13500 btu, it runs on a 15 amp breaker.

 

[Shoe1963]

Thank you