Carrier 50TCQA Installation Instructions Manual

Also see for 48TC*D: Service and maintenance instructions Installation instructions

Contents

12Units with Factory--Installed Disconnect —The factory--installed option disconnect switch is locatedin a weatherproof enclosure located under the maincontrol box. The manual switch handle is accessiblethrough an opening in the access panel. Discard thefactory test leads (see Fig. 16).Units Without Disconnect OptionUnits With Disconnect Option246135L1L2L3OptionalDisconnectSwitchDisconnect factory test leads; discard.FactoryWiring11 13 13L1 L2 L3TBCIFC(3 PhaseIndoor Motor)(1 Phase Indoor Motorand 1 Phase Unit)208/230-1-60208/230-3-60460-3-60575-3-60DisconnectperNECC09011Fig. 16 -- Power Wiring ConnectionsAll units --All field wiring must comply with NEC and all localcodes. Size wire based on MCA (Minimum Circuit Amps)on the unit informative plate. See Fig. 16 and the unitlabel diagram for power wiring connections to the unitpower terminal blocks and equipment ground. Maximumwire size is #2 ga AWG per pole.Provide a ground--fault and short--circuit over--currentprotection device (fuse or breaker) per NEC Article 440(or local codes). Refer to unit informative data plate forMOCP (Maximum Over--current Protection) device size.All field wiring must comply with the NEC and localrequirements.Convenience Outlets —ELECTRICAL OPERATION HAZARDFailure to follow this warning could result in personalinjury or death.Units with convenience outlet circuits may usemultiple disconnects. Check convenience outlet forpower status before opening unit for service. Locateits disconnect switch, if appropriate, and open it.Tag--out this switch, if necessary.! WARNINGTwo types of convenience outlets are offered on 50TCQAmodels: Non--powered and unit--powered. Both typesprovide a 125--volt GFCI (ground--faultcircuit--interrupter) duplex receptacle rated at 15--Abehind a hinged waterproof access cover, located on theend panel of the unit. See Fig. 17.ConvenienceOutletGFCIPwd-COFuseSwitchPwd-COTransformerControl BoxAccess PanelC08128Fig. 17 -- Convenience Outlet LocationInstalling Weatherproof Cover –A weatherproof while-in-use cover for thefactory-installed convenience outlets is now required byUL standards. This cover cannot be factory-mounted dueits depth; it must be installed at unit installation. Forshipment, the convenience outlet is covered with a blankcover plate.The weatherproof cover kit is shipped in the unit’s controlbox. The kit includes the hinged cover, a backing plateand gasket.DISCONNECT ALL POWER TO UNIT ANDCONVENIENCE OUTLET.Remove the blank cover plate at the convenience outlet;discard the blank cover.Loosen the two screws at the GFCI duplex outlet, untilapproximately 1 / 2 -in (13 mm) under screw heads areexposed. Press the gasket over the screw heads. Slip thebacking plate over the screw heads at the keyhole slotsand align with the gasket; tighten the two screws untilsnug (do not over-tighten).50TCQA