1999 Dunham-Bush Air-Cooled Liquid Chiller. Model: ACDX420B. Capacity: 420 Nominal tons. For outdoor use only. Refrigerant: R-22. Test pressure hi/lo: 400/250 psig. Power supply: 460 V, 60 Hz, 3 phase. Control supply: 115 V, 60 Hz, single phase. (2) Dunham-Bush Scroll Compressors, Model: 1215NHF6X6K0EMBJ0C, design pressure hi/lo: 410/250 psig, power supply: 460/400 V, 1330 LRA, 60/50 Hz, 3 phase. (1) Dunham-Bush scroll compressors, Model: 1218NHF6X6K0EMBJ0C, power supply: 460/400 V, 1485 LRA, 60/50 Hz, 3 phase. Dunham-Bush chiller barrel, Model: FXT24149J09CVR0, shell side MAWP: 200 psi @ 150 °F, shell side MDMT: -20 °F @ 200 psi, tube side MAWP: 250 psi @ 150 °F, shell side MDMT: -20 °F @ 60 psi. (22) condenser fan motors (ea.), 1.5 hp, 3.0 FLA, 460 V, 60 Hz, 3 phase. Inlets/outlets: (2) 10 in. dia. Victaulic ports. Compressor run times: no.1: 63179 hours, no. 2: 47652 hours, no. 3: 60105 hours. Overall dimensions: 44 ft. L x 7 ft. 6 in. W x 8 ft. 5 in. H.