LBP - Low Back Pressure APPLICATION, R404/R507 Refrigerant, 208-230V 1 Phase 60Hz / 200-220V 1 Phase 50Hz 3 HP, High Start Torque (HST) 12605 BTU Capacity, 0.875" Sweat (7/8" ODF) SUCTION LINE SIZE, 0.5" Sweat (1/2" ODF) DISCHARGE LINE SIZE, Reciprocating Compressor (Model:AVA2512ZXN)