Carrier WeatherMaster 50HC14 Installation Instructions Manual

Also see for WeatherMaster 50HC14: Service and maintenance instructions Service and maintenance instructions Installation instructions

Contents

14Step 10 — Make Electrical ConnectionsNOTE: Field-supplied wiring shall conform with the limitationsof minimum 63°F (3°C) rise.FIELD POWER SUPPLYFor those units without thru-the-curb power, conduit mustbe used to route the main power from the condenser end, viathe power entry in the corner post of the unit (see Fig. 20-22)to either the factory option disconnect or the bottom of thecontrol box. A 1-in. conduit is provided wrapped aroundcompressor. A second conduit is provided with factory in-stalled powered convenience outlet. For those units that re-quire conduit larger than 1-in., the conduit must be field sup-plied. Figures 20-22 show the wire routings.If the field disconnect is larger than 100A, it must be at-tached to the unit using accessory CRDISBKT001A00 —disconnect switch bracket (see Fig. 23). Follow the instruc-tions provided with this accessory. For smaller field discon-nects, be sure to use 1/2 -in. screws to mount the disconnect di-rectly to the end panel (see Fig. 24). In either case, set the dis-connect vertical location on the unit so that a 90 degree fittingcan be used to connect the conduit to the disconnect.Fig. 20 — Conduit into Factory Option Non-FusedDisconnect or HACRFig. 21 — Conduit into Control BoxFig. 22 — Conduit into Single Point BoxFig. 23 — Mounting Position for Field Disconnects(over 100A)WARNINGELECTRIC SHOCK HAZARDFailure to follow this warning could result in personal injuryor death.Unit cabinet must have an uninterrupted, unbroken electricalground to minimize the possibility of personal injury if anelectrical fault should occur. This ground may consist ofelectrical wire connected to unit ground lug in controlcompartment, or conduit approved for electrical groundwhen installed in accordance with NEC; ANSI/NFPA 70,latest edition (in Canada, Canadian Electrical Code CSA[Canadian Standards Association] C22.1), and localelectrical codes.