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

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Table 8 — Fan Board 3 (AUX1) Inputs and OutputsDESCRIPTION INPUT/OUTPUT I/O TYPE*<strong>Controls</strong> discharge and liquid line isolation soleniods for 30RB210-300 brine units.†Low ambient temperature head pressure control output is on AUX1 board only.NOTE: Fan Board 3 used on 30RB210-300.SCROLLING MARQUEEPOINT NAMEPower (24 vac supply) — — —Local Equipment Network — — —Circuit C DischargePressure TransducerCircuit C SuctionPressure TransducerMinimum LoadValue Circuit CCircuit C Low AmbientTemperature Head PressureControl Speed Signal(sizes 210-300)DPTCSPTCPressure Transducer(0-5 VDC)Pressure Transducer(0-5 VDC)Outdoor Fan Motor 9 OFM9 TRIACOutdoor Fan Motor 10 OFM10 TRIACOutdoor Fan Motor 11 OFM11 TRIACOutdoor Fan Motor 12 OFM12 TRIACOutdoor Fan Motor 13 OFM13 TRIACOutdoor Fan Motor 14 OFM14 TRIACOutdoor Fan Motor 15 OFM15 TRIACOutdoor Fan Motor 16 OFM16 TRIACOutdoor Fan Motor 17 OFM17 TRIACOutdoor Fan Motor 18 OFM18 TRIACPRESSURE→PRC.C→DP.CPRESSURE→PRC.C→SP.CMLV-C* TRIAC OUTPUTS→CIR.C→HGB.CMM-C† 0-10 VDC OUTPUTS→CIR.C→SPD.CCONNECTION POINT(Unit Size)Pin NotationFB3-J111 24 vac12 GroundFB3-J9+G-+G-FB3-J7-CH13FB3-J8-CH14FB3-J3-CH7(sizes 210-300)FB3-CH9+-FB3-J2-CH2(sizes 210, 225)FB3-J2-CH3(size 250)FB3-J2-CH3(sizes 210, 225)FB3-J2-CH4(size 250)FB3-J2-CH1(sizes 210, 225)FB3-J2-CH2(size 250)FB3-J2-CH3(sizes 210, 225)FB3-J2-CH4(size 250)FB3-J2-CH1(size 250)FB3-J2-CH2(size 275)FB3-J2-CH3(size 300)FB3-J3-CH6(size 250)FB3-J2-CH3(size 275)FB3-J2-CH4(size 300)FB3-J2-CH1(size 275)FB3-J2-CH2(size 300)FB3-J2-CH4(size 275)FB3-J3-CH5(size 300)FB3-J2-CH1(size 300)FB3-J3-CH6(size 300)12
Enable-Off-Remote Contact Switch — This switchis installed in all units and provides the owner and serviceperson with a local means of enabling or disabling themachine. It is a 3-position switch used to control the chiller.When switched to the Enable position the chiller is under itsown control. Move the switch to the Off position to shut thechiller down. Move the switch to the Remote Contact positionand a field-installed dry contact can be used to start the chiller.The contacts must be capable of handling a 24-vac, 20-mAload. In the Enable and Remote Contact (dry contacts closed)positions, the chiller is allowed to operate and respond to thescheduling configuration, CCN configuration and set pointcontrol.Emergency On/Off Switch — This switch is installedin all units. The Emergency On/Off switch should only be usedwhen it is required to shut the chiller off immediately. Powerto the MBB, energy management module, and scrollingmarquee display is interrupted when this switch is off and alloutputs from these modules will be turned off.Energy Management Module (EMM) — The EMMis available as a factory-installed option or as a field-installedaccessory. The EMM receives 4 to 20 mA inputs for thetemperature reset, cooling set point reset and demand limitfunctions. The EMM also receives the switch inputs for thefield-installed second stage 2-step demand limit and ice donefunctions. The EMM communicates the status of all inputswith the MBB, and the MBB adjusts the control point, capacitylimit, and other functions according to the inputs received. SeeTable 9 and Fig. 7.Care should be taken when interfacing with other manufacturer’scontrol systems due to possible power supply differences,full wave bridge versus half wave rectification,which could lead to equipment damage. The two differentpower supplies cannot be mixed. ComfortLink controlsuse half wave rectification. A signal isolation device shouldbe utilized if incorporating a full wave bridge rectifier signalgenerating device is used.Basic Control UsageSCROLLING MARQUEE DISPLAY — The scrolling marqueedisplay is the standard interface display to the ComfortLinkControl System for 30RB units. The display has up and downarrow keys, an ENTER key, and an ESCAPE key. Thesekeys are used to navigate through the different levels of thedisplay structure. Press the ESCAPE key until the highestoperating level is displayed to move through the top 11 modelevels indicated by LEDs on the left side of the display. SeeFig. 8.Once within a mode or sub-mode, pressing the ENTERand ESCAPE keys simultaneously will put the scrollingmarquee display into expanded text mode where the full meaningof all sub-modes, items and their values can be displayedfor the current selection. Press the ENTER and ESCAPEkeys to return the scrolling marquee display to its default menuof rotating display items (those items in Run Status→VIEW).In addition, the password will be disabled, requiring that it beentered again before changes can be made to password protecteditems. Press the ESCAPE key to exit out of the expandedtext mode.Fig. 5 — Reverse Rotation Board (RRB)Fig. 6 — Time Delay Relay13
Page 2 and 3: CONTENTS (cont)Page• COOLER LEAVI
Page 4 and 5: Table 2 — Main Base Board Inputs
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 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
Page 58 and 59: Table 37 — TroubleshootingSYMPTOM
Page 60 and 61: PREFIXCODECoCtFCMCSUFFIXCODE.F1.F2.
Page 62 and 63:
Table 38 — Alarm Codes (cont)PREF
Page 64 and 65:
Possible Causes — If this conditi
Page 66 and 67:
a control option that requires the
Page 68 and 69:
interlock (PMPI) contacts. The pump
Page 70 and 71:
Suction Transducer FailurePr.04 —
Page 72 and 73:
NOTE: The energy management module
Page 74 and 75:
Table 43B — 5K Thermistor Tempera
Page 76 and 77:
ALM RALT RCL-HTCWFSDLSVDPTEXVEMMFIO
Page 78 and 79:
COMPRESSOR AND FAN LOCATIONFig. 37
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COMPRESSOR AND FAN LOCATIONFig. 39
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APPENDIX A — LOCAL DISPLAY TABLES
Page 84 and 85:
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
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
NOTES:1. Compressor capacity will b
Page 102 and 103:
APPENDIX B — CCN TABLES (cont)SET
Page 104 and 105:
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
Page 120 and 121:
Component Test — Complete the fol
Page 122 and 123:
Operating Data:Record the following
Page 124:
Copyright 2007 Carrier CorporationM
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Controls, Start-Up, Operation, Service And Troubleshooting - Carrier

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