lxi Transfer switch

[GregOConnor]

More on the transfer switch. One caution I have with fixing issues on my bus is with replacing things. Re-engineering and inattentive (shotty) repairs in the past leave no trace of the design engineered intent.
I replaced the transfer switch on the bus and used the wanderlodge documents to rewire it with little issue other than a different location of the ground bar and a red wire that was and is tied to ground. ( I need to learn the purpose of this wire)
After removing the old transfer switch box I notices the guts have been replaced and found the receipt (2008, Florida, $1,152.) on the receipt another electronic relay was installed. I now think it is the Eaton in the pic because you can see sheet metal screws holding it in where BB used rivets. Of concern is the orientation. The documents are not definitive or I am not electrical savoy to determine the true intended orientation. since all the other appliances are upside down, should this be upside down also? it can be physically wired either way but I am not sure it works either way.