"OPERATING VOLTAGE 208/230 VAC PHASE 3 FREQUENCY 60 HZ MAX OPERATING CURRENT 26.5 AMPS@ 230VAC CIRCUIT BREAKER 40 AMPS SUPPLY WIRE SIZE NUMBER 12 SUPPLY DUCTSIZE 12 INCHES RETURN DUCT SIZE 12 INCHES SOUND LEVEL,WITH DUCT 57 DB REFRIGERANT R-134A FAN TYPE EVAPORATOR AND CONDENSER DIRECT DRIVE"