Carrier 50EJ, 50EW, 50EY, 50EK installation instructions START-UP Checklist, General

Page 56

START-UP CHECKLIST (cont)

GENERAL

ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS ENSURE DRIVES OPERATE WITHIN LIMITS OF FAN PERFORMANCE TABLES

HIGH-PRESSURE SWITCH SETTING

PSIG

LOW-PRESSURE SWITCH SETTING

PSIG

MOTOR PULLEY PART NUMBER

FAN PULLEY PART NUMBER

BELT PART NUMBER

BELT SIZE

in.

FILTER QUANTITY

FILTER SIZES

in.

ADDITIONAL NOTES:

Copyright 1996 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book	1		PC 111	Catalog No. 535-006	Printed in U.S.A.	Form 50E-3SI	Pg CL-2	8-96	Replaces: 50E-1SI
Tab	1b

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CUT ALONG DOTTED LINECUT ALONG DOTTED LINE

Image 56

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 SIO CCNCOM 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 Color Code Recommendations Make Outdoor-Air Inlet AdjustmentsCCN Connection Approved Shielded Cables 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 SET Point VFD Set PointPressure Voltage VFD Power Exhaust Default Set Points Direct Digital Controls DIP Switch ConguraPotentiometer Signal Levels Setting Open SettingClosed POSSequence of Operation Fan Performance, 50EJ/EK024-034 Ð Vertical Discharge Units Airflow16,000 CFM CV Fan Performance, 50EJ048 Ð Vertical Discharge UnitsAir Quantity Limits Motor Limitations User Dened Set PointsPage Heat Interlock Relay Wiring Stages Cooling Capacity Staging Table CV Units with 2 CompressorsStages Economizer Manufacturer Lubricant Evaporator Fan Service and ReplacementLubrication Evaporator-Fan Motor Replacement Belt Tension Adjustment Ð To adjust belt tensionCondenser-Fan Adjustment Cooling Charging Chart Sizes Troubleshooting Typical Refrigerant Circuiting 50EJ,EK,EW,EY038,044 Typical Refrigerant Circuiting 50EJ,EW048 DIP Control Board LED AlarmsLED Error Description Troubleshooting Blinks Code Comments Base Module Ð VAV I/O Channel DesignationsBase Module Ð CV I/O Channel Designations Expansion Module Ð CV and VAV IAQPage Page Packaged Service Training START-UP Checklist START-UP Checklist General