Carrier 48GC04 Service And Maintenance Instructions

38Additional RTU Open Installation and Trouble-shootingAdditional installation, wiring and troubleshooting informationfor the RTU Open Controller can be found in the followingmanual: “48/50FC, 48/50GC Single Package Rooftop Unitswith RTU Open Controls, Start-up, Operation and Trouble-shooting Instructions.”ECONOMIZER SYSTEMSThe unit may be equipped with a factory-installed or accessory(field-installed) economizer system. Three types are available:two with logic control systems (EconoMi$er ®X andEconoMi$er IV) and one without a control system(EconoMi$er2). See Fig. 61 - 63 for component locations oneach type.NOTE: For GC rooftop units EconoMi$er IV is only available asa field-installed accessory.Economizers use direct-drive damper actuators.Fig. 61 — EconoMi$er X Component LocationsFig. 62 — EconoMi$er IV Component LocationsFig. 63 — EconoMi$er2 Component LocationsWARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal inju-ry, death and/or equipment damage.Disconnect and lockout/tagout electrical power before wir-ing the RTU Open controller.IMPORTANT: Any economizer that meets the economizerrequirements as laid out in California’s Title 24 mandatorysection 120.2 (fault detection and diagnostics) and/or pre-scriptive section 140.4 (life-cycle tests, damper leakage, 5year warranty, sensor accuracy, etc), will have a label onthe economizer. Any economizer without this label doesnot meet California’s Title 24. The five year limited partswarranty referred to in section 140.4 only applies to factoryinstalled economizers. Please refer to your economizer onyour unit.HoneywellH H 7 9 A H 0 0 1ECONOMI$ER XHARNESSOUTSIDE AIRTEMPERATURE SENSORECONOMI$ER IVCONTROLLER (W7212)OUTSIDE AIRTEMPERATURE SENSORLOW AMBIENTSENSORECONOMI$ER2 PLUGOUTSIDE AIRTEMPERATURE SENSOR