Carrier 50EK, 50EJ, 50EW, 50EY installation instructions Ð Motormaster III Sensor Location

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Fig. 33C Ð Motormaster III Sensor Location

Fig. 33B Ð Motormaster III Sensor Location(Size 048) (Sizes 038 and 044)

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Contents Installation, Start-Up Service Instructions Roof Curb Sizes Unit Leveling Tolerances DimensionsRoof Curb Sizes Unit Size Operating Corner Weight 50EJ/EK Base Unit Dimensions, 50EJ/EK024-034Unit Size Operating Corner Weight Base Unit Dimensions, 50EJ038-048 and 50EK044Unit Size Operating Corner Weight 50EW/EY Base Unit Dimensions, 50EW/EY024-034Weight Base Unit Dimensions, 50EW038-048 and 50EY044Rigging Label Model Weight 50EJ/EK/EW/EYUnit 50EJ,EK,EW,EY Physical Data4282 4508 4795 Evaporator Fan Motor Data Make Unit Duct ConnectionsSAT Field Control Remote Start/Stop COM CCNSIO Make Electrical Connections Field Power Wiring ConnectionsPage FLA LRA MCA MOCP² Electrical Data Ð 50EJ,EK,EW,EY024-04824.2 187 254 57.1 266 39.1 228 46.2 225/200 82.4 100 12.6 23.6 95.0 110 43.3 86.6 104.1 187 254 69.2 345 59.4 187 254 82.1 446 69.2 345 74.8 Control Box Diagram Sizes CCN Connection Approved Shielded Cables Make Outdoor-Air Inlet AdjustmentsColor Code Recommendations Adding Seal Strip to Top of Hood Sides Adding Seal Strip to Hood Top Mounting Flange Attaching Seal Strip To Filter Cover Barometric Relief Damper and Power Exhaust Mounting Details Pressure Transducer Locations Ð Motormaster III Sensor Location Pressure Voltage VFD VFD Set PointSET Point Potentiometer Signal Levels Direct Digital Controls DIP Switch ConguraPower Exhaust Default Set Points POS Setting OpenSetting ClosedSequence of Operation Airflow Fan Performance, 50EJ/EK024-034 Ð Vertical Discharge Units16,000 Air Quantity Limits Fan Performance, 50EJ048 Ð Vertical Discharge UnitsCFM CV User Dened Set Points Motor LimitationsPage Heat Interlock Relay Wiring Stages Economizer Cooling Capacity Staging Table CV Units with 2 CompressorsStages Lubrication Evaporator Fan Service and ReplacementManufacturer Lubricant Condenser-Fan Adjustment Belt Tension Adjustment Ð To adjust belt tensionEvaporator-Fan Motor Replacement Cooling Charging Chart Sizes Troubleshooting Typical Refrigerant Circuiting 50EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 50EJ,EW048 LED Error Description Troubleshooting Blinks Code Comments Control Board LED AlarmsDIP Base Module Ð CV I/O Channel DesignationsBase Module Ð VAV IAQ I/O Channel Designations Expansion Module Ð CV and VAVPage Page Packaged Service Training START-UP Checklist General START-UP Checklist
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