A50-8447, ECM Troubleshooting Flow Diagram | Carrier PSD006-070

Stopped or Malfunctioned ECM Motor — Refer to Fig. 41 to determine the possible cause of a stopped or mal- functioned ECM motor. Follow the instructions in the boxes.

a50-8447

Fig. 41 — ECM Troubleshooting Flow Diagram

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Image 54

Carrier PSD006-070, PSV, 50PSH instruction manual A50-8447, ECM Troubleshooting Flow Diagram

Contents

Installation, Start-Up, Service Instructions Contents Safety Considerations InstallationGeneral Physical Data 50PSH, PSV, PSD018-070 Units Typical Installation 50PSH Unit CAP ASPBSP Code Return Discharge CSP 50PSV Dimensional Data A50-7846ef HWR Hot Water Reheat Left Hand Right Hand Side Discharge Back Discharge Install Condensate Drain Mount the Unit Trap Condensate Drain Connection Water Quality Guidelines Open Loop and Recirculating WellMaterial Typical Ground-Water Piping Installation Metal Hose Minimum Bend Radii Wire Field Power Supply Supply/Return Hose Kit Trans Complete C Controller Fault CodesDescription of Operation LED Alarm Relay Astat Compr Wire NumberBMC Yellow RED ECM LWT A50-8363 Units with ECM, Complete C and LON Controller 460 A50-8364 Units with ECM, Deluxe D and LON Controller 460 SAT HpwsMves WHSP-OPEN A50 8354 8356 LWT A50-8380 Wshp Open Control 50PSH, PSV, PSD Electrical Data PSC Motor 50PSH, PSV, PSD Electrical Data PSC High-Static Motor 50PSH, PSV, PSD Electrical Data, ECM Motor Wire Field Controls Low Voltage Field Wiring A50-8442 Rnet Wiring SpecificationsA50-8441 Field-Supplied Sensors for Wshp Open Controller Operate ECM Interface Board Rnet WiringWire Terminal A50-8443 Setting Size ECM Blower Motor Performance Data Coil Units with Reheat ESP Loss Face Velocity Rated MIN FANUnit Airflow CFM Speed Size FPM PRE-START-UP Complete C Control Jumper SettingsDeluxe D Control Jumper Settings Field Selectable Inputs Humidistat/Dehumidistat Logic Deluxe D DIP Switch Settings DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options VAC HWR Operating Modes A50-8145 Operating Limits Unit Start-Up Cooling ModeSTART-UP Operating Limits 50PSH, PSV, PSD Units Cooling Heating Water Flow Rate GPM Rise F Drop F Unit Start-Up Heating ModeWater Temperature Change Through Heat Exchanger Water Flow Temp GPM/ton Pressure Heat Cooling Rise Drop Psig Flow Flow Unit Start-Up with Wshp Open Controls BACview6 Display Interface Unit Size 50PSH, PSV, PSD Water Water Temperature F Flow50PSH, PSV, PSD Coaxial Water Pressure Drop GPM Operation Approximate Fluid Volume gal Per 100 Ft of PipeAntifreeze Percentages by Volume Units with Aquazone Complete C Control Units with HWR Option Units with Wshp Open Multiple ProtocolPage Page LED Status Description of Operation Alarm Relay Complete C and Deluxe D Board System TestOff Aquazone Deluxe D Control LED Indica Complete C Control LED Code Fault DescriptionsLED Code Fault Description Description Status LED Test LED Service Air Coil Fan Motor Removal TroubleshootingRefrigerant Charging Replacing the Wshp Open Controller’s Bat FP1 and FP2 Thermistor Location Page ECM Troubleshooting Fault Description Solution ECM Pin Connectors A50-8448 ECM Troubleshooting Flow Diagram A50-8447 Good Practices Wshp TroubleshootingFault Heating Cooling Possible Cause Solution TXV No Fault Code Shown Condensate FaultCode 7 Auto Resetting Code Low Suction Pressure Temperature in HeatingHigh Head Pressure Low Discharge Air Appendix a Wshp Open Screen Configuration Appendix a Wshp Open Screen Configuration Exception Set PointsWeekly Schedule Schedules 1 Appendix a Wshp Screen Open Configuration ServiceTest Configuration Service Point Name Password Editable Range Default LevelScreen Name Alarm LinkagePage Page Copyright 2009 Carrier Corporation 50PSH,PSV,PSD START-UP Checklist II. START-UP A50-8494 Heating Cycle AnalysisCooling Cycle Analysis A50-8495