Controls, Start-Up, Operation, Service And Troubleshooting - Carrier

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Table 2 — Main Base Board Inputs and OutputsDESCRIPTION INPUT/OUTPUT I/O TYPE* Controls discharge and liquid line isolation soleniods for 30RB120-190 brine units only.SCROLLING MARQUEEPOINT NAMEPower (24 vac supply) — — —Local Equipment Network — — —Carrier Comfort Network ®(CCN)— — —CONNECTION POINTPin NotationMBB-J1, MBB-J1A,MBB-J1B11 24 vac12 GroundMBB-J9A, MBB-J9B,MBB-J9C, MBB-J9D+G-MBB-J12+G-External ChilledWater Pump InterlockPMPI Switch INPUTS→GEN.I→LOCK MBB-J4-CH15AChilled Water Flow Switch CWFS Switch INPUTS→GEN.I→LOCKMBB-J5A-CH15B15BDemand Limit Switch #1 Demand Limit SW1 Switch INPUTS→GEN.I→DLS1 MBB-J4-CH13Circuit A DischargePressure TransducerCircuit B DischargePressure TransducerDPTADPTBPressure Transducer(0-5 VDC)Pressure Transducer(0-5 VDC)PRESSURE→PRC.A→DP.APRESSURE→PRC.B→DP.BMBB-J7A-CH65V 5 vdc Ref.S SignalR ReturnMBB-J7C-CH85V 5 vdc Ref.S SignalR ReturnDual ChillerLWT ThermistorDUAL 5k Thermistor TEMPERATURE→UNIT→CHWS MBB-J6-CH3Dual Set Point Input Dual Set Point Switch INPUTS→GEN.I→DUAL MBB-J4-CH12Entering Water Thermistor EWT 5k Thermistor TEMPERATURE→UNIT→EWT MBB-J6-CH2Leaving Water Thermistor LWT 5k Thermistor TEMPERATURE→UNIT→LWT MBB-J6-CH1Outdoor Air Thermistor OAT 5k Thermistor TEMPERATURE→UNIT→OAT MBB-J6-CH4MBB-J5C-CH18Pump #1 InterlockPMP1Pump #2 InterlockPMP2SwitchINPUTS→GEN.I→PUMP 18CReverse Rotation Board Reverse Rotation Board Switch INPUTS→GEN.I→ELECMBB-J5A-CH16B16BCircuit A SuctionPressure TransducerCircuit B SuctionPressure TransducerSPTASPTBPressure Transducer(0-5 VDC)Pressure Transducer(0-5 VDC)PRESSURE→PRC.A→SP.APRESSURE→PR.B→SP.BMBB-J7B-CH75V 5 vdc Ref.S SignalR ReturnMBB-J7D-CH95V 5 vdc Ref.S SignalR ReturnUnit Status Remote Contact-Off-Enable Switch INPUTS→GEN.I→ONOF MBB-J4-CH11Alarm Relay ALM R Relay OUTPUTS→GEN.O→ALRM MBB-J3-CH24Alert Relay ALT R Relay OUTPUTS→GEN.O→ALRT MBB-J3-CH25Cooler Heater CL-HT TRIAC OUTPUTS→GEN.O→CO.HT MBB-J2B-CH21Circuit A MinimumLoad Control*MLV-A TRIAC OUTPUTS→CIR.A→HGB.A MBB-J2C-CH22Circuit B MinimumLoad Control*MLV-B TRIAC OUTPUTS→CIR.B→HGB.B MBB-J2C-CH23Pump #1 Starter PMP1 TRIAC OUTPUTS→GEN.O→PMP.1 MBB-J2A-CH19Pump #2 Starter PMP2 TRIAC OUTPUTS→GEN.O→PMP.2 MBB-J2A-CH20Ready Relay RDY R Relay OUTPUTS→GEN.O→REDY MBB-J3-CH264
Scroll Protection Module (SPM) — There is oneSPM per compressor and it is responsible for controlling thatcompressor. See Fig. 2. The device controls the compressorcontactor and the compressor crankcase heater. The SPM modulealso monitors the compressor motor temperature, and circuithigh pressure switch. The SPM responds to commandsfrom the MBB (main base board) and sends the MBB theresults of the channels it monitors via the LEN (LocalEquipment Network). See below for SPM board address information.See Table 3 for SPM inputs and outputs.SPM-A1 DIPSwitch1 2 3 4 5 6 7 8Address: ON OFF OFF OFF ON OFF OFF OFFSPM-A2 DIPSwitch1 2 3 4 5 6 7 8Address: OFF ON OFF OFF ON OFF OFF OFFSPM-A3 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF ON OFF ON OFF OFF OFFSPM-A4 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF OFF ON ON OFF OFF OFFSPM-B1 DIPSwitch1 2 3 4 5 6 7 8Address: ON OFF OFF OFF OFF ON OFF OFFSPM-B2 DIPSwitch1 2 3 4 5 6 7 8Address: OFF ON OFF OFF OFF ON OFF OFFSPM-B3 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF ON OFF OFF ON OFF OFFSPM-B4 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF OFF ON OFF ON OFF OFFSPM-C1 DIPSwitch1 2 3 4 5 6 7 8Address: ON OFF OFF OFF OFF OFF ON OFFSPM-C2 DIPSwitch1 2 3 4 5 6 7 8Address: OFF ON OFF OFF OFF OFF ON OFFSPM-C3 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF ON OFF OFF OFF ON OFFSPM-C4 DIPSwitch1 2 3 4 5 6 7 8Address: OFF OFF OFF ON OFF OFF ON OFFONLED1LED21031031 2 3 4 5 6 7 8JP3JP4 JP1JP2JP5JP6C19D4D6 D5Q4D7F1D9Q5U3QC1QC2Q6 D8 Q3C46D13 D14SMDFig. 2 — Scroll Protection Module5LOCATION OFSERIAL NUMBER
Page 2 and 3: CONTENTS (cont)Page• COOLER LEAVI
Page 6 and 7: Table 3 — Scroll Protection Modul
Page 8 and 9: Table 4 — EXV1 Board Inputs and O
Page 10 and 11: Table 6 — Fan Board 1 (AUX1, AUX2
Page 12 and 13: Table 8 — Fan Board 3 (AUX1) Inpu
Page 14 and 15: SIO LENSIO LEN+ G - + G -2212212212
Page 16 and 17: Table 10 — ComfortLink Display Me
Page 18 and 19: Table 12 — Configuring the Master
Page 20 and 21: Capacity Control — The control sy
Page 22 and 23: STAGETOTALCAP.LEGENDMLC — Minimum
Page 24 and 25: If any of these conditions are met,
Page 26 and 27: Table 19 — Head Pressure Control
Page 28 and 29: Table 20 — Low Ambient Temperatur
Page 30 and 31: LEGENDI 2 t — Current Squared Tim
Page 32 and 33: Control Method(OPER)0(Switch Ctrl)1
Page 34 and 35: Temperature Reset — Temperature r
Page 36 and 37: 5654FLUID TEMPERATURE (deg F)525048
Page 38 and 39: To use 4-20 mA Temperature Reset in
Page 40 and 41: Table 28 — 4 to 20 mA Temperature
Page 42 and 43: Table 29 — 2-Step Demand Limit Co
Page 44 and 45: PRE-START-UPIMPORTANT: Complete the
Page 46 and 47: Operation below minimum flow rate c
Page 48 and 49: MODE 12 (MD12) — Auto Changeover
Page 50 and 51: 1. Cable2. Glass Seal3. Motor Housi
Page 52 and 53: DISASSEMBLYClosedOpenNOTE: Open val
Page 54 and 55:
1130 26 2218 137 16 9 20243 5 28343
Page 56 and 57:
Charging with Unit Off and Evacuate
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Table 37 — TroubleshootingSYMPTOM
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PREFIXCODECoCtFCMCSUFFIXCODE.F1.F2.
Page 62 and 63:
Table 38 — Alarm Codes (cont)PREF
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Possible Causes — If this conditi
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a control option that requires the
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interlock (PMPI) contacts. The pump
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Suction Transducer FailurePr.04 —
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NOTE: The energy management module
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Table 43B — 5K Thermistor Tempera
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ALM RALT RCL-HTCWFSDLSVDPTEXVEMMFIO
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COMPRESSOR AND FAN LOCATIONFig. 37
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COMPRESSOR AND FAN LOCATIONFig. 39
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APPENDIX A — LOCAL DISPLAY TABLES
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Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
NOTE: See operating modes starting
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APPENDIX B — CCN TABLES (cont)STA
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Page 98 and 99:
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NOTES:1. Compressor capacity will b
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APPENDIX B — CCN TABLES (cont)SET
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APPENDIX B — CCN TABLES (cont)MAI
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APPENDIX B — CCN TABLES (cont)SER
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APPENDIX C — CCN ALARM DESCRIPTIO
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APPENDIX C — CCN ALARM DESCRIPTIO
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Actual start-up 44Alarms and alerts
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Copyright 2007 Carrier CorporationM
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7. Electrical circuit protection ha
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Record Configuration InformationMOD
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Component Test — Complete the fol
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Operating Data:Record the following
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Copyright 2007 Carrier CorporationM
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Controls, Start-Up, Operation, Service And Troubleshooting - Carrier

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