Rinker 330 : Size of Air Conditioner Unit / Need to calculate power draw

Hi.
Would anyone know what size (BTU / amps) of air conditioner unit was installed on this boat from the factory ? Its a marine-air unit. I need to calculate the size of generator needed to power it.
Thanks.
Would anyone know what size (BTU / amps) of air conditioner unit was installed on this boat from the factory ? Its a marine-air unit. I need to calculate the size of generator needed to power it.
Thanks.
Comments
110-125v
25-50 amps
2002 FV 342 on Lake St. Clair - Past Commodore SHC - Vessel Examiner USCGAUX