Carrier 50EY, 50EJ, 50EW, 50EK installation instructions Pressure Transducer Locations

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VAV Ð Variable Air Volume

Fig. 32 Ð Pressure Transducer Locations

Step 10 Ð Install Accessories Ð After all the factory- installed options have been adjusted, install all ®eld- installed accessories. Refer to the accessory installation in- structions included with each accessory.

MOTORMASTER III SENSOR LOCATION Ð Motor- master III sensor locations are shown in Fig. 33A-33C. Re- fer to the Motormaster III installation instructions for wiring and installation information.

Fig. 33A Ð Motormaster III Sensor Location

(Sizes 024-034)

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Contents Installation, Start-Up Service Instructions Unit Leveling Tolerances Dimensions Roof Curb SizesRoof Curb Sizes Base Unit Dimensions, 50EJ/EK024-034 Unit Size Operating Corner Weight 50EJ/EKBase Unit Dimensions, 50EJ038-048 and 50EK044 Unit Size Operating Corner WeightBase Unit Dimensions, 50EW/EY024-034 Unit Size Operating Corner Weight 50EW/EYBase Unit Dimensions, 50EW038-048 and 50EY044 WeightModel Weight 50EJ/EK/EW/EY Rigging LabelPhysical Data Unit 50EJ,EK,EW,EY4282 4508 4795 Make Unit Duct Connections Evaporator Fan Motor DataSAT Field Control Remote Start/Stop CCN COMSIO Field Power Wiring Connections Make Electrical ConnectionsPage Electrical Data Ð 50EJ,EK,EW,EY024-048 FLA LRA MCA MOCP²24.2 187 254 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 Make Outdoor-Air Inlet Adjustments CCN Connection Approved Shielded CablesColor 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 VFD Set Point Pressure Voltage VFDSET Point Direct Digital Controls DIP Switch Congura Potentiometer Signal LevelsPower Exhaust Default Set Points Closed Setting OpenSetting POSSequence of Operation Fan Performance, 50EJ/EK024-034 Ð Vertical Discharge Units Airflow16,000 Fan Performance, 50EJ048 Ð Vertical Discharge Units Air Quantity LimitsCFM CV Motor Limitations User Dened Set PointsPage Heat Interlock Relay Wiring Cooling Capacity Staging Table CV Units with 2 Compressors Stages EconomizerStages Evaporator Fan Service and Replacement LubricationManufacturer Lubricant Belt Tension Adjustment Ð To adjust belt tension Condenser-Fan AdjustmentEvaporator-Fan Motor Replacement Cooling Charging Chart Sizes Troubleshooting Typical Refrigerant Circuiting 50EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 50EJ,EW048 Control Board LED Alarms LED Error Description Troubleshooting Blinks Code CommentsDIP I/O Channel Designations Base Module Ð CVBase Module Ð VAV I/O Channel Designations Expansion Module Ð CV and VAV IAQPage Page Packaged Service Training START-UP Checklist START-UP Checklist General