Carrier Comprehensive Guide to Alarm Codes: A140, A152, T114, T115, T116, T117, and T133
Page 68

Table 42 — Alarm and Alert Codes (cont)

ALARM/

ALARM

 

WHY WAS THIS

ACTION TAKEN

RESET

PROBABLE

ALERT

OR

DESCRIPTION

ALARM

BY CONTROL

METHOD

CAUSE

CODE

ALERT

 

GENERATED?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If the compressors are off

 

 

 

T110

Alert

Circuit A Loss of Charge

and discharge pressure

Circuit not allowed to

Manual

Refrigerant leak or

reading is < 26 psig for

start.

transducer failure

 

 

 

 

 

 

 

30 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

If the compressors are off

 

 

 

T111

Alert

Circuit B Loss of Charge

and discharge pressure

Circuit not allowed to

Manual

Refrigerant leak or

reading is < 26 psig for

start.

transducer failure

 

 

 

 

 

 

 

30 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

Circuit saturated suction

 

 

Faulty Expansion valve,

T112

Alert

Circuit A High Saturated

temperature pressure

Circuit shut down

Manual

faulty suction pressure

Suction Temperature

transducer > 70 F (21.1 C)

transducer or high entering

 

 

 

 

 

 

 

for 5 minutes

 

 

fluid temperature.

 

 

 

 

 

 

 

 

 

Circuit B High Saturated

Circuit saturated suction

 

 

Faulty Expansion valve,

T113

 

temperature pressure

 

 

faulty suction pressure

Alert

Suction Temperature

Circuit shut down

Manual

transducer > 70 F (21.1 C)

transducer or high entering

 

 

 

 

 

 

 

 

for 5 minutes

 

 

fluid temperature.

 

 

 

 

 

Automatic restart

Faulty expansion valve,

T114

 

Circuit A Low Suction

Suction superheat is

 

after first daily

faulty suction pressure

Alert

less than 5° F (2.8 C) for 5

Circuit A shut down.

occurrence.

transducer, faulty suction gas

Superheat

 

 

minutes.

 

Manual restart

thermistor, circuit

 

 

 

 

 

 

 

 

 

thereafter.

overcharged

 

 

 

 

 

 

 

 

 

 

 

 

Automatic restart

Faulty expansion valve,

T115

 

Circuit B Low Suction

Suction superheat is

 

after first daily

faulty suction pressure

Alert

less than 5° F (2.8 C) for 5

Circuit B shut down.

occurrence.

transducer, faulty suction

Superheat

 

 

minutes.

 

Manual restart

gas thermistor, circuit

 

 

 

 

 

 

 

 

 

thereafter.

overcharged

 

 

 

 

 

 

 

 

 

 

Mode 7 caused the com-

 

 

Faulty expansion valve, low

T116

 

Circuit A Low Cooler

pressor to unload 6 consecu-

 

 

refrigerant charge, plugged

Alert

tive times with less than a

Circuit shut down

Manual

filter drier, faulty suction

Suction Temperature

 

 

30-minute interval between

 

 

pressure transducer, low

 

 

 

 

 

 

 

 

each circuit shutdown.

 

 

cooler fluid flow

 

 

 

Mode 8 caused the com-

 

 

Faulty expansion valve, low

T117

 

Circuit B Low Cooler

pressor to unload 6 consecu-

 

 

refrigerant charge, plugged

Alert

tive times with less than a

Circuit shut down

Manual

filter drier, faulty suction

Suction Temperature

 

 

30-minute interval between

 

 

pressure transducer, low

 

 

 

 

 

 

 

 

each circuit shutdown.

 

 

cooler fluid flow

T118

 

High Discharge Gas

Discharge Thermistor (DTT)

Compressor A1 shut

 

Refrigerant charge, plugged

Alert

Automatic

filter drier, head pressure

Temperature Alert

reading is greater than 250 F

down

 

 

 

control.

 

 

 

 

 

 

 

 

 

 

 

 

 

A118

 

High Discharge Gas

3 Discharge Gas Tempera-

Compressor A1 shut

 

Refrigerant charge, plugged

Alarm

ture alarms occur within a

Manual

filter drier, head pressure

Temperature

down

 

 

day

 

control.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Automatic, only

 

 

 

 

 

 

after first 3 daily

 

 

 

 

 

 

occurrences.

Faulty transducer/high

 

 

 

 

 

Manual reset

T126

 

Circuit A High

Compressor operation out-

 

pressure switch, low/

Alert

Circuit shut down

thereafter. Read-

Discharge Pressure

side of operating envelope.

restricted condenser

 

 

 

ing from OAT sen-

 

 

 

 

 

airflow

 

 

 

 

 

sor must drop 5 F

 

 

 

 

 

 

 

 

 

 

 

(2.8 C) before

 

 

 

 

 

 

restart

 

 

 

 

 

 

Automatic, only

 

 

 

 

 

 

after first 3 daily

Faulty transducer/high

 

 

 

 

 

occurrences. Man-

T127

Alert

Circuit B High

Compressor operation out-

Circuit shut down

ual reset thereafter.

pressure switch, low/

Discharge Pressure

side of operating envelope.

Reading from OAT

restricted condenser

 

 

 

 

 

 

 

 

sensor must drop

airflow

 

 

 

 

 

5 F (2.8 C) before

 

 

 

 

 

 

restart

 

 

 

 

 

 

Automatic

 

T133

 

Circuit A Low Suction

Suction pressure below

 

restart after first

Faulty or sticking EXV, low

Alert

34 psig for 8 seconds or

Circuit shut down

daily occurrence.

refrigerant charge, plugged

Pressure

 

 

below 23 psig

 

Manual restart

filter drier.

 

 

 

 

 

 

 

 

 

thereafter.

 

 

 

 

 

 

Automatic

 

T134

 

Circuit B Low Suction

Suction pressure below

 

restart after first

Faulty or sticking EXV, low

Alert

34 psig for 8 seconds or

Circuit shut down

daily occurrence.

refrigerant charge, plugged

Pressure

 

 

below 23 psig

 

Manual restart

filter drier.

 

 

 

 

 

 

 

 

 

thereafter.

 

A140

 

Reverse Rotation

Incoming chiller power leads

Chiller not allowed to

 

Reverse any two incoming

Alert

Manual

power leads to correct. Check

Detected

not phased correctly

start.

 

 

 

for correct fan rotation first.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chiller shutdown

Automatic once

 

A150

 

 

CCN emergency stop

CCN command for

CCN Network

Alarm

Emergency Stop

without going through

command received

EMSTOP returns to

command.

 

 

 

pumpdown.

 

 

 

 

normal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A151

 

 

One or more illegal

Chiller is not allowed to

Manual once

Configuration error.

Alarm

Illegal Configuration

configuration errors

configurations exists.

start.

Check unit settings.

 

 

 

are corrected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Automatic once

 

A152

 

Unit Down Due to

Both circuits are down due

Chiller is unable

alarms/alerts are

Alarm notifies user

Alarm

cleared that pre-

that chiller is 100%

Failure

to alarms/alerts.

to run.

 

 

vent the chiller from

down.

 

 

 

 

 

 

 

 

 

 

starting.

 

 

 

 

 

 

 

 

68

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Contents Controls, Start-Up, Operation, Service, and Troubleshooting ContentsContents Safety ConsiderationsGeneral Basic Controls UsageUnit Sizes Unit Nominal Capacity TonsAccessory Navigator Display Module Mode RUN Service Temperatures SET Inputs Outputs Configuration Time Operating AlarmsScrolling Marquee Display Menu Structure TestRun Status Mode and Sub-Mode Directory StrtSUB-MODE Keypad Display SUB-ITEM Comment Entry Expansion VersService Test Mode and Sub-Mode Directory SUB-MODE Keypad Display Comment Entry Expansion TestOuts CmpaSet Points Mode and Sub-Mode Directory Temperature Mode and Sub-Mode DirectoryPressure Mode and Sub-Mode Directory Inputs Mode and Sub-Mode Directory Outputs Mode and Sub-Mode DirectoryConfiguration Mode and Sub-Mode Directory SUB-MODE Keypad Display Comment Entry Expansion EXVOPT1 SUB-MODE Keypad Display Comment Entry Expansion UnitSUB-MODE Keypad Display Comment OPT2XXX XXX.X ΔF DST Time Clock Mode and Sub-Mode DirectoryDate Operating Mode and Sub-Mode Directory Alarms Mode and Sub-Mode DirectoryMode Item Expansion Description Operating ModesCarrier Comfort Network CCN Interface ControlsControl Module Communication CCN Communication Bus Wiring Thermistor DesignationsStatus Inputs Output RelaysAlmr AUXCCB CHCA30-4962 A30-4963A30-4964 Typical Control Box for 30RAP035-060Typical Wiring Schematic, 30RAP018-030 Units Power Wiring Typical Wiring Schematic, 30RAP018-030 Units Control Wiring A30-4966Typical Wiring Schematic, 30RAP035-060 Units Power Wiring 5283Typical Wiring Schematic, 30RAP035-060 Units Control Wiring A30-5284A30-4967 A30-4968Page CEPL130351 Deadband Multiplier 30RAP Unit Size Control Capacity Steps Capacity %A30-4969 Operating Envelope for R-410A Compressor30RAP Unit Size FAN Stages Cooling Set Point SelectA30-4970 Optional Factory-Installed Hydronic Pack Control Methods and Cooling Set PointsControl Occupancy Cooling SET Point Select Clsp Type State CCN→PM1E = YES Configuring and Operating Dual Chiller Con Dual Chiller Configuration Master Chiller Example RsetSUB-MODE Keypad Entry Display Item Expansion Comments PartNumber Dual Chiller Configuration Slave Chiller Example Rset Slave CompleteTo 20 mA Reset Menu Configuration of 4 to 20 mA Cooling Set Point ControlConfiguring Outdoor Air and Space Temperature Reset Configuring Return Temperature ResetMode Keypad SUB Display RED LED Entry ModeOutdoor-Air Temperature Reset To 20-mA Demand Limiting Configuring Demand Limit Item Expansion Comment Entry ConfigurationPRE-START-UP System Check30RAP Minimum Cooler Flow Maximum Cooler Flow Size START-UP and OperationA30-4978 Temperature Limits for Standard 30RAP Units Operating LimitationsOperation Sequence Unit Size 30RAService Electronic ComponentsEXV Steps Unit Size 30RAP EXV StepsA30-4971 Electronic Expansion Valve DetailsCompressor Replacement Refer to Fig Unit Torque SpecificationCooler A30-4972Oil Charge Check Refrigerant Feed ComponentsLWT A30-4973A30-4974 Unit Cutout CUT-IN Factory Settings, High-Pressure Switch FixedCheck Unit Safeties Thermistor Well Temp Voltage Resistance Drop 100,260 143 86K Thermistor vs Resistance DTT DropA30-4975 A30-499A30-4976 AccsyP50 Fault History Last 8 faults P51 Software version Mode Nominal Voltage Control Input Start Jumper A30-4977TB1-TB2 TB13A-TB2Fault Codes PID Parameters Description ModeMotormaster V Program Parameters for Operating Modes Replacement Replacement Part Module MaintenanceReplacement Modules Troubleshooting Advanced Scroll Temperature Protection Label 30RAP Unit Cutout CUT-IN SizeTroubleshooting Symptoms Cause RemedyAlarm and Alert Codes T051T110 T153 T197 Alert GENERATED? CCNCSB EMMCompressor Stuck on Failure Alarms Page Appendix a Display Tables SUB-MODE Display Item Description CommentView RUNVers Appendix a Display TablesStrt Pressures Mode and Sub-Mode Directory SUB-MODE Display Item Description Range Comment CoolHead FRZGEN.O SUB-MODE Display Item Description Comment HP.A HP.BEXV.A EXV.BRset Bcst SUB-MODE Display Item Description Comment Time DateDST HOL.LHD.19 HD.30 SUB-MODE Display Item Description Comment SCH.N SCH.LPER.1 PER.2PER.8 PER.6PER.7 Hist CrntRcrn Appendix B CCN Tables CCN Display Tables Aunit General Unit ParametersCCN Display Tables Circaan Circuit a Analog Parameters Description Value Units Point Name ForcibleAppendix B CCN Tables CCN Display Tables Circban Circuit B Analog ParametersCCN Configuration Tables Unit Unit Configuration CCN Configuration Tables OPTIONS1 Options 1 ConfigurationDescription Value Default Units Point Name CCN Display Tables Options Unit ParametersCCN Configuration Tables OPTIONS2 Options 2 Configuration CCN Configuration Tables Schedovr Timed Override SetupCCN Configuration Tables Display Marquee Display Setup CCN Configuration Tables Mmconf Motormaster ConfigurationCCN Service Tables Service Description Value Units Point Name Description Value Point NameCCN Maintenance Tables Alarms Description Version ValueCCN Maintenance Tables PM-PUMP CCN Maintenance Tables Runtest CCN Maintenance Tables Dualchil Appendix C Factory Settings for Pump and Manual Starters SettingAppendix D Optional Bacnet Communications Wiring Optional BACnet Communications WiringAppendix D Optional Bacnet Communications Wiring Table a SW3 Protocol Switch Settings For MS/TPTable B Baud Selection Table DS8 DS7 DS6 DS5 DS4 DS3Table C MS/TP Wiring Recommendations Specification RecommmendationAWG CL2PCMP Wiring Specifications Recommended Vendors and Part NumbersRmcorp LED Status Table E LED Status IndicatorsRUN LED Error LED Status Control Mode Table G Network Points List108 109 Appendix E Maintenance Summary and LOG Sheets 30RAP Maintenance Interval RequirementsWeekly QuarterlyAppendix E Maintenance Summary and LOG Sheets 30RAP Weekly Maintenance LogPSI 30RAP Monthly Maintenance LogUnit Section Action Entry 30RAP Seasonal Shutdown Log 113Copyright 2010 Carrier Corporation START-UP Checklist for 30RAP Liquid Chiller Remove and use for Job File Project InformationII. Preliminary Equipment Check Design InformationIII. Unit Start-Up Start and Operate Machine. Complete the FollowingDual Chiller Control Only Mode RUN Status Record Software VersionsUnit Configuration Settings OPTIONS1 Options ConfigurationSubmode Item Expansion Display Entry OPT1OPTIONS2 Options Configuration CCN CCN Network ConfigurationHP.A Head Pressure Cmp. Delta Configuration HP.B Head Pressure Cmp. Delta ConfigurationEXV.A Circuit a EXV Configuration EXV.B Circuit B EXV ConfigurationMM Motormaster Configuration Settings EXV.BRset Reset Configuration Settings Slct Setpoint and Ramp Load ConfigurationSetpoint SUB-MODE Keypad Display Comment Entry Expansion
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