What is Start Up and Running Amps of Advent Air AC Unit
Updated 01/19/2026 | Published 08/10/2024
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Question:
What is the total start up amps on the Advent ACM135 and then the running amps ? What size generator will I need?
asked by: Albert T
Expert Reply:
Hey Albert, the Advent Air AC Unit part # ACM135 has a start up amperage draw of 45 amps and a run amp rating of 15 amps. When using a start capacitor like the part # ACMSCKIT though the start up amps drop to 15 amps.
For a generator that would work great with this we have the Firman 3,300 watt generator part # FIR54FR.
Albert T.
1/19/2026
I bought me a Champion 4650w and it worked fine with the Advent 13500 Rv a/c and the acmsckit.
Jameson C.
1/19/2026
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Jameson C.
1/19/2026
Hey Albert, how did things work out with the Advent AC and the Firman 3,300-watt generator? Did the start capacitor help lower the startup amps as expected? Your update could make it easier for the next person setting up a similar system.