OM 752-4 6 www.DaikinApplied.comIntroduCtIonAcronyms/AbbreviationsThe following table list acronyms and abbreviations that may or may not be used withinthis manual. Other abbreviations for keypad displays and parameters can be found inTable 8 on page 15 and Table 25 on page 42.Table 5: Acronyms and abbreviationsDescription Acronym/Abr.Air Fan AFAuxiliary Heat End Differential AHEDAuxiliary Heat Start Differential AHSDAmerican Standard Code for Information Interchange ASCIIAmerican Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc ASHRAECompressorized Cooling Lockout CCLOSpace CO2 Setpoint CO2SChilled Water CWChilled Water Valve Position CWVPDischarge Air DADischarge Air High Limit DAHLDischarge Air Temperature DATDischarge Air Temperature Setpoint DATSDemand Controlled Ventilation DCVDX Cooling Discharge Air Low Limit DXLLDefrost Start Set Point DSSPDefrost Reset Set Point DRSPDefrost Time Limit DTLDefrost Time-Temperature Curve Value DTTCEconomizer Compare Differential ECDEconomizer IA/OA Enthalpy Differential EEDEconomizer OA Enthalpy Setpoint EESEmergency Heat Setpoint EHSExhaust Interlock OAD Min Position Setpoint EOADOutdoor Air Temperature Setpoint EOATEnd-of-Cycle EOCEOC OAT Low Setpoint EOCSOutdoor Air Humidity Output EORHSpace Humidity Output ERHEconomizer IA/OA Temp Differential ETDEconomizer OA Temp Setpoint ETSSource (water in) Temperature EWITFace and Bypass Damper Position FBDPFederal Communications Commission FCCFace and Bypass F & BPHeating, Ventilating, Air Conditioning Refrigeration HVACRHeating EOC Valve Setpoint HEOCHot Water HWIndoor Air IAIndoor Air Enthalpy IAEIndoor Air Fan IAFIndoor Air Temperature IATLight Emitting Diode LEDLocal User Interface LUIMixed Air Low Limit MALLMechanical Cooling Low Limit Setpoint MCLL