Carrier PTV, 50PTH specifications A50-8447, ECM Troubleshooting Flow Diagram

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Stopped or Malfunctioned ECM Motor — Refer to Fig. 40 to determine the possible cause of a stopped or mal- functioned ECM motor. Follow the instructions in the boxes.

a50-8447

Fig. 40 — ECM Troubleshooting Flow Diagram

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Contents Contents Safety ConsiderationsInstallation GeneralPhysical Data 50PTH, PTV, PTD026-072 Units 50PTH026-072 Dimensional Data Typical Installation 50PTH Unit Aux Electric Heat Disconnect50PTV Dimensional Data 50PTD Dimensional Data Side Discharge Back DischargeRotate Install Condensate DrainMount the Unit Move to SideHorizontal Unit Pitch Trap Condensate DrainTypical Ground-Water Piping Installation Drains field-installedMetal Hose Minimum Bend Radii Wire Field Power SupplyWater Quality Guidelines 50PTH,PTV,PTD Electrical Data Alarm Relay Contacts Sensor, Water Coil Freeze ProtectionRVS TransECM BM ECM Alarm Relay Contacts Discharge Temp Switch Relay/Contactor Coil A50-8363 A50 8364LWT SPTA50-8571 Wshp Open ControlSPT Sensors Rnet Wiring SpecificationsField-Supplied Sensors for Wshp Open Controller Wire Terminal Wire Field ControlsRnet Wiring A50-8443A50-8441 A50-8141A50-7764tf A50-8442Heating Settings Cooling SettingsDehumidificaton Mode Settings CFM Adjust SettingsBlower Performance Data Wshp Open High Fan Airflow PRE-START-UPWshp Open Fan Only / Low Fan and Med Fan Airflow Field Selectable Inputs Complete C Control Jumper SettingsDeluxe D Control Jumper Settings Humidistat/Dehumidistat Logic Deluxe D DIP Switch Settings DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options Units with Modulating Hot Water Reheat HWR OptionMode Input Output HWR Operating ModesA50-8145 Water Out START-UPOperating Limits Operating Limits 50PTH, PTV, PTD UnitsWater Temperature Change Through Heat Exchanger Unit Start-Up Cooling ModeUnit Start-Up Heating Mode Suction Discharge Super Sub Water Air Temp Unit Start-Up with Wshp Open Controls A50-8444PTD Unit 50PTH, PTV Water Temperature F GPMCoaxial Water Pressure Drop 026 038 049Operation Approximate Fluid Volume gal Per 100 Ft of PipeAntifreeze Percentages by Volume Units with Aquazone Complete C ControlUnits with Wshp Open Multiple Protocol Page Page LED Fault Description Code Complete C Control LED Code Fault DescriptionsLED Status Description of Operation Alarm Relay Complete C and Deluxe D Board System TestAlarm Relay Aquazone Deluxe D Control LED IndicaService Air Coil Fan Motor Removal TroubleshootingRefrigerant Charging Replacing the Wshp Open Controller’s Bat70.0 90.080.0 KOhm 60.0 50.0Page ECM Troubleshooting Fault Description SolutionECM Pin Connectors A50-8448ECM Troubleshooting Flow Diagram A50-8447Good Practices Wshp TroubleshootingFault Heating Cooling Possible Cause Solution Over/Under Voltage Code 7 Auto ResettingNo Fault Code Shown Performance MonitorLow Suction Pressure Temperature in HeatingHigh Head Pressure Low Discharge AirStatus Appendix a Wshp Open Screen ConfigurationAlarm Status SensorSystem Settings Appendix a Wshp Open Screen ConfigurationMaintenance ConfigurationSchedule Test Appendix a Wshp Screen Open ConfigurationService Screen Name Configuration ServicePoint Name Password Editable Range Default Level Alarm Page Page Copyright 2010 Carrier Corporation 50PTH,PTV,PTD START-UP Checklist II. START-UPA50-8449 Heating Cycle AnalysisCooling Cycle Analysis A50-8450