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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103 - CONNECTIONSHigh pressure transducercirc. 1 (0-5Vdc ratiom.)C4NO8NO9NO10NO11NO12RX-/TX-RX+/TX+GNDVoutRX-/TX-RX+/TX+GNDC1NO1NO2NO3C2NO4NO5NO6NO7C3NC7J2 - probe power supplyJ3 - analogueinputsJ4 - digitalinputsJ5 - analogueoutputsJ18 - analogueinputsJ17J16 - digitalinputsJ6J7J8(pLAN)J9J10(RS485)J11J12 - digitaloutputsJ13 - digitaloutputsJ14 - digitaloutputsJ15 - digitaloutputsLLNNJ1 - power supply230 VacAir quality probeCO2 (4-20mA)GG0B1B2B3B4B5B6B7GND+Vdc+VdcGND+5 VrefGNDY1Y2Y3Y4DI1DI2DI3DI4DI5DI6DI7DIC1B8B9B10B11B12GNDDI8DI9DI10DIC2MOUT+5V réfMOUT+VMOUT+VIndoor fan safetyCompr.1 circ. 2Reversing valve circ. 22-speed outd. fan circ.2(low-speed)Compr.2 circ.1Compr.2 circ.2Graphic terminalUser terminalshieldElectronic outdoor fan circ.1or 2-speed fan (hig-speed)“50FC”MEDIUMboardLow pressure transducercirc. 1 (0-5Vdc ratiom.)MOUT+5V réfSuction temp.probe circ.1Suction temp.probe circ.2High pressure transducercirc. 2 (0-5Vdc ratiom.)MOUT+5V réfLow pressure transducercirc. 2 (0-5Vdc ratiom.)MOUT+5V réfCompr.1 circ. 1Reversing valve circ.12-speed outd. fan circ.1(low-speed)Indoor fanElec. heater 1st stageor gas burner / bolierElec. heater 2nd stageSignal of alarm /pump / humidifier /rotary heat exchangerMixing temp.probe (NTC)Supply temp.probe (NTC)Outdoor temp.probe (NTC)Return air temp.probe (NTC)Ambient temperatureprobe (NTC) or outdoorhumidity probe (4-20mA)Smoke detectorHP pressostat circ.1Comprs & outd. fanthermal safety circ.1Safety lineClogged filter controlRemote off / onOutdoor air damperWater coil 3-WV or propor.elect. heater or gas burnerElectronic outdoor fan circ.2or 2-speed fan (hig-speed)Antifreeze safety (HWC)Comprs & outd. fanthermal safety circ. 2HP pressostat circ. 2Connector J1Unit power supplyConnector J2Sensors power supplyConnector J3 (Analog inputs)Temperature, pressure and humidity reading sensors:B1: return air temperature probeB2: outdoor air temperature probeB3: supply air temperature probeB4: mixing air temperature probeB5: NTC ambient air temperature probe (by default) or outdoorair relative humidity probe (optional)B6: low pressure transducer circuit 1B7: high pressure transducer circuit 1Connector J4 (Digital inputs)Safety devices and failure indication:DI1: indoor fan protectionDI2: smoke detector (optional)DI3: high pressure pressostat circuit 1DI4: compressor and outdoor fan protection circuit 1DI5: safety thermistor for the electrical heater or gas burner/boileralarm signal (optionals)DI6: clogged filter control (optional)DI7: remote On / OffConnector J5 (Analog outputs)Proportional control of the unit components and optional elements:Y1: control of the opening of the outdoor air damper (optional)Y2: control of the 3-way valve of the hot water coil or the heatrecovery coil or proportional electrical heater or gas burner/boiler (optional)Y3: outdoor fan circuit 1: electronic fan (standard) or high-speed(optional 2-speed fan) (optional)Y4: outdoor fan circuit 1:electronic fan (standard) or high-speed(optional 2-speed fan) (optional)Connector J6Connection of the BMS communication card3.1. Main board |
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