13Step 6 — Wire Field Power SupplyConnectionsELECTRICAL–LINE VOLTAGE — All field-installed wir-ing, including electrical ground, must comply with the NationalElectrical Code (NEC) as well as all applicable local codes. Re-fer to Tables 4 and 5 for fuse sizes. Refer to Table 6 for blowerspeed wiring. See Fig. 10 for field connections or the electricaldiagram located on the back of the electrical compartment frontpanel. All electrical connections must be made by the installing(or electrical) contractor. All final electrical connections mustbe made with a length of flexible conduit to minimize vibrationand sound transmission to the building.General Line Voltage Wiring — Be sure the availablepower is the same voltage and phase shown on the unitserial plate. Line and low voltage wiring must be done inaccordance with local codes or the NEC, whichever is appli-cable.POWER CONNECTIONUnits Equipped with Disconnect — Connect incoming linevoltage to the disconnect switch and ground wire to the groundlug provided inside the electrical compartment.Units without Disconnect — Line voltage connection is madeby connecting the incoming line voltage wires to the lineside(s) of the contactor.208/230-VAC OPERATION — All commercial 208/230-vunits are factory wired for 208-v single-phase operation. For230-v single-phase operation the primary voltage to the trans-former must be changed. Remove the red lead from the com-pressor contactor capping it with a wire nut and connecting theorange 230-vac lead wire from the transformer to the compres-sor contactor.NOTE: Failure to change the primary voltage lead when using240-vac line voltage may result in electrical component dam-age and intermittent system failure.Table 4 — Cabinet Electrical Data — 50VS UnitLEGENDTable 5 — Chassis Electrical Data — 50VS UnitLEGENDTable 6 — 50VS Unit Blower Performance and Speed WiringNOTE: Operation not recommended in shaded area.WARNINGElectrical shock can cause personal injury or death. Wheninstalling or servicing system, always turn off main powerto system. There may be more than one disconnect switch.UNIT SUPPLYVOLTAGEV-Hz-PhMOTORVOLTAGEV-Hz-PhFAN MOTORFLA (A) MOTOR POWER (W) MIN CIRCUITAMP MAX FUSE SIZE (A)50VSA,B 208/230-1-60 208/230-1-60 0.30 130 6.2 1550VSC,D 208/230-1-60 208/230-1-60 0.40 142 8.3 1550VSE,F 208/230-1-60 208/230-1-60 0.88 180 13.3 2550VSG,H 208/230-1-60 208/230-1-60 1.18 240 13.6 2550VSI,J 208/230-1-60 208/230-1-60 1.60 304 15.1 2550VSK,L 208/230-1-60 208/230-1-60 1.80 368 22.4 3550VSM,N 208/230-1-60 208/230-1-60 2.06 442 25.3 40FLA — Full Load AmpsUNITSUPPLYVOLTAGEV-Hz-PhMINCIRCUITAMPMAX FUSESIZE(A)COMPRESSOR(LRA) COMPRESSOR(RLA)COOLINGCURRENT(A)MAX COOLINGCURRENT(A)HEATINGCURRENT(A)MAX HEATINGCURRENT(A)50VSA,B 208/230-1-60 6.2 15 20 4.7 3.27 4.0 3.75 4.6050VSC,D 208/230-1-60 8.3 15 27 6.3 4.40 4.0 5.25 6.2550VSE,F 208/230-1-60 13.3 25 42 9.9 6.30 5.4 7.07 8.8050VSG,H 208/230-1-60 13.6 25 42 9.9 6.70 7.6 7.50 9.0050VSI,J 208/230-1-60 15.1 25 46 10.8 8.20 8.0 9.20 11.7050VSK,L 208/230-1-60 22.4 35 70 16.5 11.00 10.4 12.20 14.1050VSM,N 208/230-1-60 25.3 40 79 18.6 12.70 16.0 13.65 16.50LRA — Locked Rotor AmpsRLA — Rated Load AmpsUNIT FAN SPEEDAND WIRINGRATEDCFMMINCFMEXTERNAL STATIC PRESSURE (in. wg)0 0.01 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.550VSA,B LOW (Black) 360 260 361 358 341 321 294 268 235 177HI (Blue) 316 310 294 278 262 233 20650VSC,D LOW (Blue) 420 300 424 421 398 376 350 315 280 240HI (Red) 361 358 341 321 30550VSE,F LOW (Black) 540 390 551 549 535 521 509 490 476 460 441 420 400HI (Blue) 470 465 455 439 428 412 39750VSG,H LOW (Blue) 630 455 626 622 604 592 577 561 548 530 513 495 476HI (Red) 551 549 535 521 509 490 476 46050VSI,J LOW (Orange) 820 600 821 817 814 812 802 790 775 747 684 654 621HI (Brown) 768 765 762 759 751 742 722 683 653 62550VSK,L LOW (Black) 1080 780 1081 1075 1070 1049 1024 931 880 843 801HI (Blue) 956 951 942 928 911 835 80950VSM,N LOW (Blue) 1220 850 1222 1219 1194 1160 1129 1088 1057 1017 961HI (Red) 1102 1096 1091 1070 1044 949 897 860311