Carrier 17EX Sensor Fault Alert, LOW OIL Pressure, Autorestart Pending, Sensor Alert

Page 91

Table 12 Ð LID Primary and Secondary Messages and Custom Alarm/Alert Messages

with Troubleshooting Guides (cont)

L. CHILLER PROTECT LIMIT FAULTS (cont)

Excessive numbers of the same fault can lead to severe chiller damage. Seek service expertise.

PRIMARY MESSAGE

SECONDARY MESSAGE

ALARM MESSAGE/PRIMARY CAUSE

ADDITIONAL CAUSE/REMEDY

PROTECTIVE LIMIT

TRANSDUCER VOLTAGE FAULT

V

 

REF [VALUE] exceeded limit of [LIMIT]*.

Check transformer power (5 vdc) supply to

 

 

Check transducer power supply.

transducers. Power must be 4.5 to 5.5 vdc.

PROTECTIVE LIMIT

LOW GEAR OIL PRESSURE

GEAROILP [VALUE] exceeded imit of

Check for closed oil supply valves. Check oil ®l-

 

 

[LIMIT]*. Check gear oil pump ®lter.

ter. Check transducer accuracy.

PROTECTIVE LIMIT

HIGH GEAR OIL TEMP

GEAOILT [VALUE] exceeded limit of

Check for cooler water ¯ow. Check sensor for

 

 

[LIMIT]*. Check gear oil cooler ®lter.

accuracy.

PROTECTIVE LIMIT

CCN OVERRIDE STOP

CHIL

 

S

 

S CCN. Override stop while in

Machine received a command from the net-

 

 

local run mode.

work to stop overriding local operating mode.

 

 

 

 

 

 

 

 

 

 

*[LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point prede®ned or selected by

 

the operator as an override, alert, or alarm condition. [VALUE] is the actual temperature, pressure, voltage,

 

etc., at which the control tripped. [OPEN] indicates that an input circuit is open.

 

M. CHILLER ALERTS

PRIMARY MESSAGE

SECONDARY MESSAGE

ALARM MESSAGE/PRIMARY CAUSE

ADDITIONAL CAUSE/REMEDY

RECYCLE ALERT

HIGH AMPS AT SHUTDOWN

High Amps at Recycle: Check guide vane

Check that guide vanes are closing. Check

 

 

drive.

motor amps correction calibration is cor-

 

 

 

 

 

 

rect. Check actuator for proper operation.

SENSOR FAULT ALERT

LEAVING COND WATER TEMP

Sensor Fault: Check leaving condenser

Check sensor. See sensor test procedure.

 

 

water sensor.

 

SENSOR FAULT ALERT

ENTERING COND WATER TEMP

Sensor Fault: Check entering condenser

 

 

 

water sensor.

 

LOW OIL PRESSURE

CHECK OIL FILTER

Low Oil Pressure Alert: Check oil

Check oil ®lter. Check for improper oil level

ALERT

 

 

 

 

 

or temperature.

AUTORESTART PENDING

POWER LOSS

V

 

 

P Power Loss: Check voltage

Check power supply if there are excessive

 

 

supply.

compressor starts occurring.

AUTORESTART PENDING

LOW LINE VOLTAGE

V

 

P [VALUE] exceeded limit of [LIMIT]*.

 

 

 

Check voltage supply.

 

AUTORESTART PENDING

HIGH LINE VOLTAGE

V

 

P [VALUE] exceeded limit of [LIMIT]*.

 

 

 

Check voltage supply.

 

SENSOR ALERT

HIGH DISCHARGE TEMP

CMPD [VALUE] exceeded limit of

Discharge temperature exceeded the alert

 

 

[LIMIT]*. Check discharge

threshold. Check entering condenser water

 

 

temperature.

temperature.

SENSOR ALERT

HIGH BEARING TEMP

MTRB [VALUE] exceeded limit of

Thrust bearing temperature exceeded the

 

 

[LIMIT]*. Check thrust bearing

alert threshold. Check for closed valves, im-

 

 

temperature.

proper oil level or temperatures.

CONDENSER PRESSURE

PUMP RELAY ENERGIZED

CRP High Condenser Pressure [LIMIT]*.

Check ambient conditions. Check con-

ALERT

 

Pump energized to reduce pressure.

denser pressure for accuracy.

RECYCLE ALERT

EXCESSIVE RECYCLE STARTS

Excessive recycle starts.

The chiller load is too small to keep the chiller

 

 

 

 

 

 

on line and there have been more than 5

 

 

 

 

 

 

restarts in 4 hours. Increase chiller load, ad-

 

 

 

 

 

 

just hot gas bypass, increase RECYCLE RE-

 

 

 

 

 

 

START DELTA T from SERVICE1 screen.

SENSOR ALERT

LOW GEAR OIL PRESSURE

GEAROILP [VALUE] exceeded imit of

Check for closed oil supply valves. Check

 

 

[LIMIT]*. Check gear oil pump ®lter.

oil ®lter. Check transducer accuracy.

SENSOR ALERT

HIGH GEAR OIL TEMP

GEAOILT [VALUE] exceeded limit of

Check for cooler water ¯ow. Check sensor

 

 

[LIMIT]*. Check gear oil cooler ®lter.

for accuracy.

*[LIMIT] is shown on the LID as the temperature, pressure, voltage, etc., set point prede®ned or selected by the operator as an override, alert, or alarm condition. [VALUE] is the actual temperature, pressure, voltage, etc., at which the control tripped.

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents Inspect Water Piping Piping Check Relief Devices Inspect WiringOCCPC01S Input Service Congurations Coupling Maintenance Motor MaintenanceContents Abbreviations Introduction17EX Chiller Familiarization Certified PerformanceTypical 17EX Chiller Components Lubrication Cycle OIL Cooling CycleRefrigeration, Cycle Starters17EX Compressor Lubrication Cycle Denitions ControlsProcessor Sensor Input/Output Module Control Center Temperature Sensors See Fig Pressure TransducersMajor PIC Components Panel Locations PIC Component Panel Location17EX Controls and Sensor Locations PIC LIDPsio GRD Equip GND ÐTewac PROCESSOR/SENSOR INPUT/OUTPUT Module Psio LID Operation and Menus FigGeneral LID Service Screen Override Operations YES or no , on or OFF , etc. to select the desired state17EX LID Menu Structure Default ScreenControl Test Service TableAlarm History Equipment ConfigurationLID CCNCarrier Comfort Network Hgbp Ð Hot Gas BypassHgbp SetpointChwr ChwsMenu Status Select Description Range Units Reference Point Name Alarm HistoryLID Display Data Example 1 Ð STATUS01 Display ScreenExample 3 Ð STATUS03 Display Screen Example 2 Ð STATUS02 Display ScreenMenu Status Example 5 Ð Setpoint Display Screen Example 4 Ð STATUS04 Display ScreenMenu ECW Control Option Example 6 Ð Configuration Config Display ScreenICE Build Termination LAG =2, Standby =3 Example 7 Ð LEAD/LAG Configuration Display ScreenExample 8 Ð SERVICE1 Display Screen Menu Service Example 9 Ð SERVICE2 Display ScreenSpare Alert Enable Example 10 Ð SERVICE3 Display ScreenBearing Temperature Example 11 Ð Maintenance MAINT01 Display ScreenExample 12 Ð Maintenance MAINT02 Display Screen Discharge TemperatureExample 14 Ð Maintenance MAINT04 Display Screen Example 13 Ð Maintenance MAINT03 Display ScreenDescription RANGE/STATUS Units Reference Point Name PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page ECW Cent Capacity ICE Build Setpoint Example of Attach to Network Device Screen Example of Holiday Period Screen To Access the Service ScreensRecycle Sequence Fig START-UP/SHUTDOWNPage Motor Before Initial START-UPJob Data Required Equipment RequiredPage 17EX Leak Test Procedures Temperature C Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C Temperature FDehydration Cold Trap Check Optional Pumpout Compressor Water Pip Inspect Wiring900 500 901 7000 1000 7001-14500 2500 Recommended Motor Fastener Tightening Torques External Gear Pre-Start ChecksExternal Gear Lubrication System Mechanical Starters Check StarterSOLID-STATE Starters Input the Design Set Points Ð To modify the set Set Up Chiller Control CongurationInput the Local Occupied Schedule OCCPC01S Surge Limiting or Change the LID Configuration if NecessaryT1/P1 Full Load Points T2/P2 Increase P1 by Decrease P1 by Load Surge Prevention Occurs TOO Soon Occurs TOO Late50% Tests to be Devices Tested Performed Charge Refrigerant into ChillerInitial START-UP Control Test Menu FunctionsCheck Motor Rotation Dry Run to Test Start-Up SequenceInitial Motor START-UP Page Flange Nut Tightening Torques Low Speed Couplings Only General Recommendations Calibrate Motor Current Demand SettingCheck Oil Pressure and Compressor Stop To Prevent Accidental Start-Up Ð The PIC can beStopping the Chiller Operating InstructionsOperator Duties Starting the ChillerOperating the Optional Pumpout Compressor Pumpout and Refrigerant Transfer ProceduresPlant Chiller Serial No Chiller Model No Refrigerant Type Rear View Valve Condition RLAReturn Chiller to Normal Operating Conditions General MaintenanceChecking Guide Vane Linkage Ð Refer to Fig Contact Seal Maintenance Refer to ÐContact Seal Page Checking Preliminary Alignment Chiller AlignmentMeasuring Angular Misalignment Elevation Alignment Formula HOT Alignment Check Adjusting Angular Misalignment in PlanDoweling Correcting Parallel MisalignmentChanging the Oil Filters Weekly MaintenanceScheduled Maintenance Check Safety and Operating Controls Monthly17EX Chiller Oil Specications Compressor OILPumpout Typical Float Valve Arrangement Sleeve Bearings Page Motor Riggings Inspect the Heat Exchanger Tubes Controls for Optional Pumpout Compressor Troubleshooting GuidePage MAINT04 MAINT01MAINT02 MAINT03PIC 1CR AUXOilpd OiltAutorestart in Progress Starts Limit ExceededFailure to Stop FaultOperation Potential FREEZE-UPRunning Ð Demand Limited Running Ð Temp ControlChiller Protect Limit Faults Autorestart Pending Sensor Fault AlertLOW OIL Pressure AlertDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Possible Cause Action External Gear Troubleshooting GuideProblem Possible Cause Ð Item NO.sTemperature Voltage Resistance Drop Ð Thermistor Temperature F vs Resistance/Voltage DropTemperature Voltage Resistance Drop Ð Thermistor Temperature C vs Resistance/Voltage DropInput Options Module Module SwitchControl Modules Module AddressStarter Management Module SMM Fig Processor/Sensor Input/Output Module Psio FigGRD Options Module Installation of NEW Psio ModuleSwitch Setting Options Module Four-In/Two-Out Module Fig4-In/2-Out Module Physical Data and Wiring Schematics100 Additional Cooler WeightsWeight Vessel SIZE² Condenser Total Weight Condenser Charge101 Additional Condenser WeightsCompressor Weight and Elbow Weight Drive Component WeightsÐ Total Motor Weight, SI kg Ð Total Motor Weight, English lb102 103 Marine Waterbox Cover WeightsNIH Waterbox Cover Weights Approximate Refrigerant HCFC-134a ChargeRelief Valve Locations and Data Auxiliary Systems, Electrical Data104 105 Compressor Fits and ClearancesClearance Type Description 106Measure 107 Tabulation Ð Impeller Clearances Open-Drive Compressors17FX 108 Tewac 109Temp Press110 111 112 General 113Terminal Strip 114GND Ð Ground T1-T4Index Index Index Index Index Copyright 1997 Carrier Corporation

17EX specifications

The Carrier 17EX is recognized as an innovative air conditioning solution that combines efficiency with advanced technology. This model is designed to meet the increasing demands of residential and commercial cooling needs while maintaining environmental consciousness.

One of the standout features of the Carrier 17EX is its impressive Seasonal Energy Efficiency Ratio (SEER) rating. With a SEER rating that often exceeds 17, this unit ensures optimized energy consumption, significantly lowering operational costs for users. The incorporation of advanced compressor technology allows the system to adjust its cooling output based on the specific needs of the environment, thus providing both comfort and energy savings.

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For users concerned about indoor air quality, the Carrier 17EX includes advanced filtration systems designed to capture allergens and airborne particles. This feature is particularly beneficial for individuals with respiratory issues, ensuring that the air circulated within the space is clean and healthy.

Moreover, the Carrier 17EX is equipped with smart technology capabilities, allowing users to control their systems remotely through smartphones or other smart devices. This connectivity not only provides convenience but also empowers homeowners to optimize their energy use by adjusting settings on the fly, ensuring efficient operation even when they are away from home.

Overall, the Carrier 17EX stands out in the marketplace for its exceptional energy efficiency, advanced technology, and commitment to providing reliable and effective cooling solutions. Its combination of modern features makes it a preferred choice for those looking to enhance comfort while being mindful of energy consumption and environmental impact.
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