Carrier 50FF Series Control Manual
Also see for 50FC Series: Installation, operation and maintenance instructionsControls, Start-Up, Operation and TroubleshootingUser manualService and maintenance instructionsInstallation, operation and maintenance instructions
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Contents
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143.5. Connection of the SMALL board with address 4 to control the recovery circuit (optional)3 - CONNECTIONSConnector J1Unit power supplyConnector J2Sensors power supplyConnector J3 (Analog inputs)Temperature and pressure reading sensors:B5: suction temperature probe of the recovery circuitB6: low pressure transducer of the recovery circuitB7: high pressure transducer of the recovery circuitConnector J4 (Digital inputs)Safety devices and failure indication:DI3: high pressure pressostat of the recovery circuitHigh pressuretransducer ofrecovery circuit(0-5Vdc ratiom.)Low pressuretransducer ofrecovery circuit(0-5Vdc ratiom.)RX-/TX-RX+/TX+GNDVoutRX-/TX-RX+/TX+GNDC1NO1NO2NO3C2NO4NO5NO6NO7C3NC7GG0B1B2B3B4B5B6B7GND+Vdc+VdcGND+5 VrefGNDY1Y2Y3DI1DI2DI3DI4DI5DI6DI7DIC1J2 - probepower supplyJ3 - analogueinputsJ4 - digitalinputsJ5 - analogueoutputsJ6J7J8J9J10J11Suction temp. probeof recovery circuit(NTC / 4-20mA)J1 - power supplyJ12 - digitaloutputsJ13 - digitaloutputsJ14 - digitaloutputsLLNNMOUT+5V ref230 VacMOUT+5V ref HP pressostatrecov. circ.Compr. thermalprotectionRemote OffRecovery compressorReversing valveSignal of alarmMOUT+VshieldSMALLboard Connection withthe control boardThe management of the cooling circuit for the recovery of theextracted air energy (optional) is done with a SMALL boardconnected in series on the Field-Bus. Address 4.DI4: compressor thermal protection of the recovery circuitDI7: remote offConnector J10RS485 Fieldbus connection with “50FC” control board.Board address = 4Connector J11Cycle reversing valve of the recovery circuitConnector J12 (Digital outputs)On/off control of the unit components:NO1: recovery compressorNO2: cycle reversing valve of the recovery circuitConnector J14 (Digital outputs)On/off control of the unit components:NO7: signal of alarm |
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