Carrier 48HE003---006 Installation Instructions Manual

Contents

63Table 46—EconoMi$er IV Input/Output LogicINPUTS OUTPUTSDemand ControlVentilation (DCV)Enthalpy*Y1 Y2Compressor N Terminal†Outdoor ReturnStage1Stage2Occupied UnoccupiedDamperBelow set(DCV LED Off) High(Free Cooling LED Off) Low On On On On Minimum position ClosedOn Off On OffOff Off Off OffLow(Free Cooling LED On) High On On On Off Modulating** (between min.position and full-open) Modulating** (betweenclosed and full-open)On Off Off OffOff Off Off Off Minimum position ClosedAbove set(DCV LED On) High(Free Cooling LED Off) Low On On On On Modulating†† (between min.position and DCV maximum) Modulating†† (betweenclosed and DCVmaximum)On Off On OffOff Off Off OffLow(Free Cooling LED On) High On On On Off Modulating*** Modulating†††On Off Off OffOff Off Off Off*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.†Power at N terminal determines Occupied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied).**Modulation is based on the supply-air sensor signal.††Modulation is based on the DCV signal.***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position (DCV) or fully open (sup-ply-air signal).†††Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air sig-nal).C06053Fig. 76 --- EconoMi$er IV Functional View48HE,HJ

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