Code Alarm SRT 1600 Installation Manual

48/50LC 04---06Single Package Rooftop Unitswith ComfortLink Controls Version 1.Xand PURONr (R---410A) RefrigerantCont ro ls , St art---Up, Operat io n

104. Configure the beginning of the occupied time period forPeriod 1 (OCC). Press ENTER to go into Edit mode, andthe first two digits of the 00.00 wil

11SERVICE TESTThe Service Test function can be used to verify proper operation ofcompressors, heating stages, indoor fan, power exhaust fans,economize

12Remote OccupancyThe remote occupancy input is provided on the field connectionterminal board (TB). The Remote Occupancy Switchconfiguration, Configu

13Remote Occupancy Switch (RM.SW)This configuration identifies if a remote occupancy switch isinstalled, and what status (normally open, normally clos

14Heat OAT Lockout (H.LOC)Displays if heating operation is prevented due to outdoortemperature limit lockout.Econo Cool OAT Lockout (E.LOC)Displays if

15(Level 3 PriorityThe following occupancy options are determined by the state ofOccupancy Schedule Number (Configuration→CCN→SCH.O→SCH.N) and the Glo

16override condition is cleared the speed will go to the nextcommanded speed.Supply Fan Speed 1, 2, and 3 (F.SP1,F.SP2,andF.SP3)These configurations d

17Space Sensor ControlSpace sensor staging control is an adaptive anticipation control thatweighs the actual space demand against the trend of that de

18value is below the Space RH Setpoint (RH.SP) minus the SpaceRH Deadband (Setpoints →RH.DB), then dehumidification is nolonger needed. If the unit is

19Thermostat ControlFor the unit to enter heating mode, three additional things must betrue: the indoor fan must be ok to use, the mode changeover tim

2Cooling Troubleshooting 32...Economizer Troubleshooting 33...Heating Troubleshooting 34...

20→HT.2), power is supplied to the second stage of the main gasvalve. If both stage 1 and stage 2 of the gas valve close, gas will beturned off to the

21The shape of the Economizer Minimum Position vs. Fan Speedcurve is determined by the configuration parameters: Econ Min at25% Fan speed (Configurati

22is greater than the value of Configuration→ECON→PE.2 and thefan is running High Speed. There are small time delays to ensurethat rapid cycling does

23fan is not operating, the economizer position will be zero. If theoverride is not active and the building is unoccupied, theeconomizer position will

24Setting Up the SystemThe settings for temperature compensated start can be found in thelocal display under Configuration→UNIT.ITEM EXPANSION RANGE U

25To limit stages through network writes, the points Run Status→COOL→MAX.C and Run Status→HEAT→MAX.H are forcedon the network through CCN points MAXCS

26result in the alarm output relay, ALRM, status of ON and 24 vacbetween C and X on the field connection terminal board when thatparticular condition

27error might not allow the compressor to start). The HPS and optionalCOFS are wired in series with compressor relays on the MBB. If oneof these opens

28suction only has to drop 5 PSIG. This alert causes a strike for thecircuit. The alert resets automatically. The cause of the alert isusually compres

29opened or closed, the switch might be open or closed. Theconfiguration for this switch input can be found atConfiguration→UNIT→FN.SW. Verify that th

3FIRE, EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death and/or property damage.Improper installation, adjustment,

30Table 6 – ComfortLink Alarm CodesALARMORALERTNUMBE RDE SCRIPTIONACTION TAKEN B YCONTROLRESETMETHODPROBABLE CAUSET051Compressor A1 Safety TripAdd S t

31Control Module CommunicationRed LEDProper operation of the MBB and ECB control boards can bevisually checked by looking at the red status LEDs. When

32Cooling TroubleshootingUse the Scrolling Marquee display or a CCN device to view thecooling status display and the cooling diagnostic display (seeAp

33Economizer TroubleshootingUse the unit Scrolling Marquee display or a CCN device to viewthe economizer status display and the economizer diagnosticd

34Heating TroubleshootingUse the unit Scrolling Marquee display or a CCN device to viewthe heating status display and the heating diagnostic display (

351 FLASH - INDOOR FAN DELAYMODIFIED (HEATING)2 FLASHES - OPENING OF LIMITSWITCH3 FLASHES - FLAME SENSORINDICATES FLAME WITHCLOSED GAS VALVE4 FLASHES

36Table 11 – IGC Board LED Alarm CodesLEDFLASHCODEDESCRIPTIONACTION T AKEN BYCONTROLRESET METHOD PROBABLE CAUSEOn Normal Operation— — —Off Hardware Fa

37Phase Loss ProtectionThe phase loss protection option will monitor the three-phase electricalsystem to provide phase reversal and phase loss protect

38SCT.ASCT.ASize 04 UnitsSize 05 & 06 UnitsC12219Fig. 10 -- Saturated Condensing Temperature Thermistor Location — 48/50LC04--06Transducer Trouble

39Table 13 – Temperature (_F) vs Resistance/Voltage Drop Values for OAT, SAT, and SPT Thermistors (10K at 25_C Type II Resistors)TEMP(F)RESISTANCE(Ohm

4Accessory Navigator DisplayThe accessory hand-held Navigator display can be used with the48/50LLC units. (See Fig. 2.) The Navigator display operates

40Table 14 – Temperature (_F) vs. Resistance/Voltage Drop Values for SCT Sensors (5K at 25_C Resistors)TEMP(F)RESISTANCE(Ohms)VOLTAGEDROP (V)TEMP(F)RE

41Table 15 – Pressure (psig) vs. Voltage Drop Values for Suction Pressure TransducersPRESSURE(psig)VOLTAGEDROP (V)PRESSURE(psig)VOLTAGEDROP (V)PRESSUR

42C12220Fig. 11 -- 48LC 04--06 ComfortLink Control Schematic48/50LC

43C12221Fig. 12 -- 50LC 04--06 ComfortLink Control Schematic48/50LC

44C12222Fig. 13 -- 48LC 04--06 ComfortLink Power Schematic -- 208/230V, 460V 3 Phase Units48/50LC

45C12223Fig. 14 -- 48LC 04--06 ComfortLink Power Schematic --575V 3 Phase Units48/50LC

46C12224Fig. 15 -- 50LC 04--06 ComfortLink Power Schematic -- 208/230V, 460V, 575V 3 Phase Units48/50LC

47Main Base Board (MBB)See Fig. 16 and Table 16. The MBB is the center of theComfortLink control system. It contains the major portion of theoperating

48Table 16 – Main Base Board (MBB) ConnectionsDISPLAYNAMEPOINT DESCRIPTION SENSOR L OCATION TYPE OF I/OCONNECTIONPIN NUMBERINPUTSInput power from TRAN

49Economizer Control Board (ECB)The ECB controls the economizer actuator. (See Fig. 17 and Table17.) The control signal from the ECB uses either the M

5Table 2 – Scrolling Marquee Mode and Menu Display StructureRUNSTATUSSERVICETESTTEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATIONTIMECLOCK

50Table 17 – Economizer Control Board (ECB) ConnectionsDISPLAY NAME POINT DESCRIPTIONSENSORLOCATIONTYPE OF I/OCONNECTIONPIN NUMBERINPUTSInput power fr

51Integrated Gas Control (IGC) BoardThe IGC is provided on gas heat units. (See Fig. 18 and Table 18.)The IGC controls the direct spark ignition syste

52Low Voltage Terminal Board (TB)The field connection terminal board has 30 terminals oriented in 3rows of 10 terminals. The front has screw terminals

53Table 20 – Central Terminal Board (CTB) ConnectionsCONNECTION LA-BELPIN NUMBER POINT DESCRIPTION 24Vac FROM 24V ac TODDCT’STA T7 Cool 1 Call MBB ECO

54Variable Frequency Drive (VFD)On units equipped with supply fan VFDs, the indoor fan motor iscontrolled by a 3-phase VFD. The supply fan VFD is loca

55Table 22 – VFD Parameters Configured by Factory or VFD KeypadParameter Group Parameter Title ABB Parameter HVAC Default CARRIEROptions COMM PROT SEL

56Table 26 – VFD Motor Default ConfigurationsUNITSIZE(Digits7&8)UNITVOLTAGE(Digit 12)UNITSTATICOPTION(Digit 10)*COMFORTLINK CCN POINT (DISPLAY MEN

57If diagnostics troubleshooting has determined that the drive isdefective during the warranty period, contact ABB AutomationInc., at 1--800--435--736

58Table 27 — FAULT CODES (cont)FAULTCODEFAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION101--- 105 SYSTEM ERROR Error internal to the

59Table 28 — ALARM CODES (cont)ALARMCODEALARM NAMEIN PANELDESCRIPTION AND RECOMMENDED CORRECTIVE ACTION2013* AUTORESETThis alarm warns that the drive

6Conventions Used in This ManualThe following conventions for discussing configuration points forthe local display (Scrolling Marquee or Navigator™ ac

60To connect the unit to the network:1. Turn off power to the control box.2. Cut the CCN wire and strip the ends of the red (+), white(ground), and bl

61Protective DevicesCompressor ProtectionOvercurrentEach compressor has internal line break motor protection.OvertemperatureEach compressor has an int

62TO MAINBASE BOARDREDBLKREDBLKREDBLKSENSOR 1SENSOR 2SENSOR 3REDBLKSENSOR 6SENSOR 5REDBLKSENSOR 4REDBLKREDBLKREDBLKSENSOR 8SENSOR 7 SENSOR 91REDBLKTB1

63Carrier Accessory KitsThere are specific accessory kits sold for various field installedaccessories. These kits vary based on model, size, voltage,m

64APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — RUN STATUSITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCN WRITESTATUSRUN ST A TUS

65APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — RUN STATUS (cont)ITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCN WRITESTATUSS.VFD

66APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — RUN STATUS (cont)ITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCN WRITESTATUS(GENER

67APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — SERVICE TESTITEM EXPANSION RANGE UNITS CCN TABLE/Sub --- TABLE CCN POINTSERVICE TESTTEST Field Service

68APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — INPUTSITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCN WRITESTATUSDISPLAY WRITESTAT

69APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — CONFIGURATIONSITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTPAGENO .CONFIGUR

7For belt drive units with a power exhaust option, the controlsrequire an accurate supply duct CFM at the unit design pointwhere the indoor fan will r

70APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTPAGENO .CO

71APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTPAGENO .EC

72APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTPAGENO .AL

73APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTPAGENO .SC

74APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — TIME CLOCKITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCN POINTTIME CLOCK CONFIGURA

75APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — OPERATING MODESITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCNWRITESTA TUSDISPLA Y

76APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — OPERATING MODES (cont)ITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCNWRITESTA TUSD

77APPENDIX — LOCAL DISPLAY AND CCN TABLESMODE — OPERATING MODES (cont)ITEM EXPANSION RANGE UNITSCCN TABLE/S u b --- T A B L ECCN POINTCCNWRITESTA TUSD

78CONTROL SET POINT AND CONFIGURATION LOGMODEL NO.:SERIAL NO.:DATE:TECHNICIAN:SOFTWARE VERSIONSMBB: CESR131505----_ _ECB: CESR131249----_ _MARQ: CESR1

79MODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCNPOINTENTR YI.FAN INDOOR FAN CONFIG AFAN_CFGFTYP Indoor

8Gas Heat (48LC)Inspect the gas heat section of the unit. Verify the number ofburners match the number of heat exchanger openings and theburner assemb

80MODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFA ULTCCN TABLE/S u b --- T A B L ECCNPOINTENTR YHEAT Heating Configuration HEAT_CFGHT.TY Ty

81MODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCNPOINTENTR YAIR.Q Air Quality Config. IAQ_CFGIA.CF IAQ A

82MODE — CONFIGURATION (cont)ITEM EXPANSION RANGE UNITS DEFAULTCCN TABLE/S u b --- T A B L ECCNPOINTENTR YTRIM Sensor Calibration (CCN TRIM --- seeMai

83UNIT START-UP CHECKLISTMODEL NO.:DATE:I. PRE-START-UP:SERIAL NO:TECHNICIAN:j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNITj VERIFY

84Copyright 2012 Carrier Corp. S 7310 W. Mo rris St. S India napolis, IN 46231 Edition Date: 04/12Manufacturer reser ves the right to change, at any t

9item. The thermostat control type configuration,Configuration→UNIT→T.CTL, selects the unit response to thethermostat inputs above. See below for Spac