We've checked with Advent in the past and to run the Advent Air AC unit part # ACM150 you'd need a generator with at least 3,000 watts. If you installed this on your trailer where there wasn't a unit there prior and it's working fine I would not worry about what you mentioned as far as it not being good for an install where a unit wasn't.
The amperage draw for this is 20 amps at startup. view full answer...
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