Carrier 17EX Check Oil Pressure and Compressor Stop, Calibrate Motor Current Demand Setting

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4.General Recommendations

a.Both disc couplings are designed to operate for ex- tended periods without the need for lubrication or main- tenance. Visual inspection of the disc packs is enough to assess the operational condition of the coupling.

b.All machinery should be monitored to detect unusual or changing vibration levels. Both couplings, under nor- mal operating conditions, have no wearing parts and retain their original balance quality. Any change in vi- bration levels should be investigated, and remedial ac- tion should be taken immediately.

5.Removal

a.Disassemble the coupling in the reverse order of the applicable assembly procedure.

b.Keyed couplings Ð Install a puller on the hub using the tapped holes provided in the hub face. Pull the hub off the shaft.

IMPORTANT INFORMATION:

Coupling guards protect personnel. ALL COUPLINGS MUST BE COVERED WITH A GUARD ACCORD- ING TO OSHA (Occupational Safety and Health Administration) REQUIREMENTS. Safety guards are included with this product and must be installed at all times.

1.Recheck alignment after all foundation bolts and me- chanical connections are tightened.

2.Make sure all fasteners are properly installed and tightened.

3.Take the time to double check your work.

4.Only authorized disc coupling manufacturer replacement parts are to be used.

5.Call the disc coupling manufacturer for any clari®cations or questions.

The self-locking nuts on the disc pack bolts should be replaced after they have been assembled and re- moved from the bolts 5 times.

Check Oil Pressure and Compressor Stop

1.When the motor is up to full speed, note the differential compressor oil pressure reading on the LID default screen. It should be between 18 and 30 psid (124 to 206 kPad).

2.Press the Stop button and listen for any unusual sounds from the compressor as it coasts to a stop.

Calibrate Motor Current Demand Setting

1.Make sure that the MOTOR RATED LOAD AMPS pa- rameter on the SERVICE1 screen has been con®gured. Place an ammeter on the line that passes through the mo- tor load current transfer on the motor side of the power factor correction capacitors (if provided).

2.Start the compressor and establish a steady motor current value between 70% and 100% RLA by manually over- riding the guide vane target value (TARGET GUIDE VANE POS parameter on the STATUS01 screen) and setting the chilled water set point (WATER/BRINE SETPOINT on the STATUS01 screen) to a low value. Do not exceed 105% of the nameplate RLA (rated load amps).

3.When a steady motor current value in the desired range is reached, compare the MOTOR RATED LOAD AMPS value on the STATUS01 screen to the actual amps shown on the ammeter on the starter. Adjust the amps value on the STATUS01 screen to match the actual value on the

starter ammeter, if there is a difference. Highlight the amps

value; then, press the SELECT softkey. Press the INCREASE or DECREASE softkey to bring the value

to that indicated on the ammeter. Press ENTER when the values are equal.

4.Release the target guide vane position to automatic mode. See the section on Manual Operation of the Guide Vanes, page 58, for instructions on how to do this.

To Prevent Accidental Start-Up Ð The PIC can be

con®gured so that starting the unit is more difficult than just

pressing the LOCAL or CCN softkeys during chiller serv- ice or whenever necessary. Access the STATUS01 screen, and highlight the CHILLER START/STOP param-

eter. Override the value by pressing SELECT and then the

STOP and ENTER softkeys. The word SUPVSR ap-

pears. When attempting to restart the chiller, remember to release the override. Access the STATUS01 screen and high- light CHILLER START/STOP. The 3 softkeys represent 3 choices:

·START - forces the chiller ON.

·STOP - forces the chiller OFF

·RELEASE - puts the chiller under remote or schedule control.

To return the chiller to normal control, press the RELEASE softkey; then, press the ENTER softkey. For

additional information, see Local Start-Up, page 43.

The default LID screen message indicates which com- mand is in effect.

Hot Alignment Check Ð The operating temperatures of various chiller components can affect the alignment of the compressor with the heat exchangers, gear, and driver. When all the chiller components have reached operating tempera- ture (after running at nearly full load for 4 to 8 hours), make a hot alignment check.

Using proper equipment and procedures, make the hot align- ment check with either assembled or disassembled cou- plings. The procedures are detailed in the General Mainte- nance section, page 67.

A clamping tool, Part No. TS-170, is available for check- ing alignment without disassembling the couplings. Check with your local Carrier representative.

Never operate the compressor or drive with the cou- pling guards removed. Serious injury can result from contact with rotating equipment.

Doweling Ð The size, quantity, and location of dowels vary considerably with type and arrangement of gear and drive. Check your job data for speci®c doweling instruc- tions. Typical doweling practices are described in the Gen- eral Maintenance section.

Check Chiller Operating Condition Ð Check to be sure that chiller temperatures, pressures, water ¯ows, and oil and refrigerant levels indicate that the system is func- tioning properly.

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents OCCPC01S Input Service Congurations Piping Check Relief Devices Inspect WiringCoupling Maintenance Motor Maintenance Inspect Water PipingContents Abbreviations Introduction17EX Chiller Familiarization Certified PerformanceTypical 17EX Chiller Components Lubrication Cycle OIL Cooling CycleRefrigeration, Cycle Starters17EX Compressor Lubrication Cycle Denitions ControlsMajor PIC Components Panel Locations Temperature Sensors See Fig Pressure TransducersPIC Component Panel Location Processor Sensor Input/Output Module Control Center17EX 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 ScreenAlarm History Service TableEquipment Configuration Control TestCarrier Comfort Network CCNHgbp Ð Hot Gas Bypass LIDChwr SetpointChws HgbpLID Display Data Description Range Units Reference Point Name Alarm HistoryExample 1 Ð STATUS01 Display Screen Menu Status SelectExample 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 Spare Alert Enable Example 9 Ð SERVICE2 Display ScreenExample 10 Ð SERVICE3 Display Screen Menu ServiceExample 12 Ð Maintenance MAINT02 Display Screen Example 11 Ð Maintenance MAINT01 Display ScreenDischarge Temperature Bearing 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 Job Data Required Before Initial START-UPEquipment Required MotorPage 17EX Leak Test Procedures Ð HFC-134a Pressure Ð Temperature C Ð HFC-134a Pressure Ð Temperature FTemperature F Temperature CDehydration 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% Initial START-UP Charge Refrigerant into ChillerControl Test Menu Functions Tests to be Devices Tested PerformedCheck Motor Rotation Dry Run to Test Start-Up SequenceInitial Motor START-UP Page Flange Nut Tightening Torques Low Speed Couplings Only Check Oil Pressure and Compressor Stop Calibrate Motor Current Demand SettingTo Prevent Accidental Start-Up Ð The PIC can be General RecommendationsOperator Duties Operating InstructionsStarting the Chiller Stopping 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 MisalignmentScheduled Maintenance Weekly MaintenanceCheck Safety and Operating Controls Monthly Changing the Oil Filters17EX 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 MAINT02 MAINT01MAINT03 MAINT04Oilpd 1CR AUXOilt PICAutorestart in Progress Starts Limit ExceededOperation FaultPotential FREEZE-UP Failure to StopRunning Ð Demand Limited Running Ð Temp ControlChiller Protect Limit Faults LOW OIL Pressure Sensor Fault AlertAlert Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Problem External Gear Troubleshooting GuidePossible Cause Ð Item NO.s Possible Cause ActionTemperature Voltage Resistance Drop Ð Thermistor Temperature F vs Resistance/Voltage DropTemperature Voltage Resistance Drop Ð Thermistor Temperature C vs Resistance/Voltage DropControl Modules Module SwitchModule Address Input Options ModuleStarter Management Module SMM Fig Processor/Sensor Input/Output Module Psio FigGRD Switch Setting Options Module Installation of NEW Psio ModuleFour-In/Two-Out Module Fig Options Module4-In/2-Out Module Physical Data and Wiring SchematicsWeight Vessel SIZE² Additional Cooler WeightsCondenser Total Weight Condenser Charge 100Compressor Weight and Elbow Weight Additional Condenser WeightsDrive Component Weights 101Ð Total Motor Weight, SI kg Ð Total Motor Weight, English lb102 NIH Waterbox Cover Weights Marine Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103Relief 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 Temp 109Press Tewac110 111 112 General 113GND Ð Ground 114T1-T4 Terminal StripIndex 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.

The Carrier 17EX utilizes a variable-speed inverter-driven compressor that enhances its performance and adaptability. This technology allows the air conditioning unit to operate at different speeds, intelligently adjusting to changing load conditions. As a result, the system runs more efficiently and quietly, providing a more consistent comfort level without the abrupt temperature swings associated with traditional units.

In addition to efficiency, the Carrier 17EX also prioritizes reliability and durability. The unit comes with a robust cabinet that protects the components from weather elements, ensuring longevity and consistent performance. The innovative design integrates a corrosion-resistant finish and robust insulation, which further enhances the unit's resilience in various environmental conditions.

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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