Carrier 17EX Dry Run to Test Start-Up Sequence, Check Motor Rotation, Initial Motor START-UP

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3.Chiller is charged with refrigerant and all refrigerant and all oil valves are in their proper operating position.

4.Gear oil, compressor oil, and motor bearing oil are at the proper levels in the reservoir sight glasses.

5.Compressor oil reservoir temperature is above 140 F (60 C) or refrigerant temperature plus 50° F (28° C).

6.Valves in the evaporator and condenser water circuits are open.

NOTE: If the water pumps are not automatic, make sure water is circulating properly.

7.Check the starter to be sure it is ready to start and that all safety circuits have been reset. Be sure to keep the starter door closed.

Do not permit water or brine that is warmer than 110 F (43 C) to ¯ow through the cooler or condenser. Refrig- erant overpressure may discharge through the relief de- vices and result in the loss of refrigerant charge.

8.To prevent accidental start-ups, the CHILLER START/ STOP parameter is set to STOP at the factory. Access the STATUS01 screen and scroll to the CHILLER START/

STOP parameter. Press the RELEASE softkey to enable the chiller to start.

Manual Operation of the Guide Vanes Ð Manual operation of the guide vanes helps to establish a steady mo- tor current when calibrating the motor amps value.

To manually operate the guide vanes, override the target guide vane position (TARGET GUIDE VANE POS param- eter on the STATUS01 screen). Manual control is also in- dicated on the default screen on the run status line.

1.Access the STATUS01 screen and look at the TARGET GUIDE VANE POS parameter. (Refer to Fig. 13). If the compressor is off, the value reads zero.

2.Move the highlight bar to the TARGET GUIDE VANE POS parameter and press the SELECT softkey.

3.Press ENTER to override the automatic target. The screen

reads a value of zero. The word SUPVSR! ¯ashes to in- dicate that manual control is in effect. The default screen also indicates that the guide vanes are in manual control.

4.To return the guide vanes to automatic mode, press the

SELECT softkey; then press the RELEASE softkey.

After a few seconds, the word SUPVSR! disappears.

Dry Run to Test Start-Up Sequence

1.Disengage the main motor disconnect on the starter front panel. This should only disconnect the motor power. Power to the controls, oil pumps, and starter control circuit should still be energized.

2.Look at the default screen on the LID. The status mes- sage in the upper left corner should read, MANUALLY

STOPPED. Press the CCN or LOCAL softkey to start.

If MANUALLY STOPPED is not on the default screen access the SCHEDULE screen and override the schedule or change the occupied time. Then, press the LOCAL softkey to begin the start-up sequence.

3.Check that the chilled water and condenser water pumps have energized.

4.Check that the oil pumps have started and have pressur- ized the lubrication system. After the oil pumps have run about 15 seconds, the starter energizes and goes through its start-up sequence.

5.Check the main contactor for proper operation.

6.The PIC will activate an alarm for motor amps not sensed. Reset this alarm and continue with the initial start-up.

Check Motor Rotation

INITIAL MOTOR START-UP

Initial Uncoupled Start-Up Ð The initial start-up of the mo- tor should be made with the motor uncoupled. Verify that oil has been added to each bearing housing to the correct level.

1.If the motor is equipped with unidirectional fans (refer to the certi®ed drawing) and veri®cation of rotation direc- tion is required, do the following:

a.Start the motor and observe the rotation direction. See Fig. 28.

b.Allow the motor to achieve full speed before discon- necting it from the power source.

c.If the rotation direction must be changed, refer to the Before Initial Start-Up, Motor Electrical Connection section, page 45. Otherwise, the motor can be re- started immediately after it has coasted to a stop.

Fig. 28 Ð Correct Motor Rotation

2.After the initial start-up, monitor the bearing tempera- tures closely. Verify the free rotation of the oil rings on the sleeve bearings by observing them through the view- ing port in the top of the housing. The rate of rise in bear- ing temperature is more indicative of impending trouble than the actual temperature. If the rate of rise in tempera- ture is excessive or if the motor exhibits excessive vi- bration or noise, shut it down immediately and conduct a thorough investigation to ®nd the cause before operating the motor again. If the bearing temperatures rise and mo- tor operation appears to be normal, continue operating the motor until the bearing temperatures stabilize.

The recommended limits on bearing temperature rise over ambient temperature are listed below:

Sleeve Bearing Temperature

Temperature Rise

Over Ambient

As Measured By

Temperature

 

A permanently installed

72° F (40° C)

detector

 

A temporary detector on top

 

of the bearing sleeve near the

63° F (35° C)

oil ring

 

NOTE: When operating ¯ood-lubricated sleeve bearings, the bearing temperature must not be allowed to exceed 185 F (85 C) total temperature.

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Coupling Maintenance Motor Maintenance Piping Check Relief Devices Inspect WiringOCCPC01S Input Service Congurations Inspect Water PipingContents Abbreviations Introduction17EX Chiller Familiarization Performance CertifiedTypical 17EX Chiller Components OIL Cooling Cycle Lubrication CycleStarters Refrigeration, Cycle17EX Compressor Lubrication Cycle Controls DenitionsPIC Component Panel Location Temperature Sensors See Fig Pressure TransducersMajor PIC Components Panel Locations 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 YES or no , on or OFF , etc. to select the desired state Override OperationsDefault Screen 17EX LID Menu StructureEquipment Configuration Service TableAlarm History Control TestHgbp Ð Hot Gas Bypass CCNCarrier Comfort Network LIDChws SetpointChwr HgbpExample 1 Ð STATUS01 Display Screen Description Range Units Reference Point Name Alarm HistoryLID Display Data 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 Example 7 Ð LEAD/LAG Configuration Display Screen LAG =2, Standby =3Example 8 Ð SERVICE1 Display Screen Example 10 Ð SERVICE3 Display Screen Example 9 Ð SERVICE2 Display ScreenSpare Alert Enable Menu ServiceDischarge Temperature Example 11 Ð Maintenance MAINT01 Display ScreenExample 12 Ð Maintenance MAINT02 Display Screen 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 To Access the Service Screens Example of Holiday Period ScreenSTART-UP/SHUTDOWN Recycle Sequence FigPage Equipment Required Before Initial START-UPJob Data Required MotorPage 17EX Leak Test Procedures Temperature F Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C Temperature CDehydration Cold Trap Check Optional Pumpout Compressor Water Pip Inspect Wiring900 500 901 7000 1000 7001-14500 2500 External Gear Pre-Start Checks Recommended Motor Fastener Tightening TorquesExternal 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% Control Test Menu Functions Charge Refrigerant into ChillerInitial START-UP 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 To Prevent Accidental Start-Up Ð The PIC can be Calibrate Motor Current Demand SettingCheck Oil Pressure and Compressor Stop General RecommendationsStarting the Chiller Operating InstructionsOperator Duties Stopping the ChillerPumpout and Refrigerant Transfer Procedures Operating the Optional Pumpout CompressorPlant Chiller Serial No Chiller Model No Refrigerant Type Rear View RLA Valve ConditionGeneral Maintenance Return Chiller to Normal Operating ConditionsContact Seal Maintenance Refer to Ð Checking Guide Vane Linkage Ð Refer to FigContact Seal Page Chiller Alignment Checking Preliminary AlignmentMeasuring Angular Misalignment Elevation Alignment Formula Adjusting Angular Misalignment in Plan HOT Alignment CheckCorrecting Parallel Misalignment DowelingCheck Safety and Operating Controls Monthly Weekly MaintenanceScheduled Maintenance Changing the Oil Filters17EX Chiller Oil Specications Compressor OILPumpout Typical Float Valve Arrangement Sleeve Bearings Page Motor Riggings Inspect the Heat Exchanger Tubes Troubleshooting Guide Controls for Optional Pumpout CompressorPage MAINT03 MAINT01MAINT02 MAINT04Oilt 1CR AUXOilpd PICStarts Limit Exceeded Autorestart in ProgressPotential FREEZE-UP FaultOperation Failure to StopRunning Ð Temp Control Running Ð Demand LimitedChiller Protect Limit Faults Alert Sensor Fault AlertLOW OIL Pressure Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Possible Cause Ð Item NO.s External Gear Troubleshooting GuideProblem Possible Cause ActionÐ Thermistor Temperature F vs Resistance/Voltage Drop Temperature Voltage Resistance DropÐ Thermistor Temperature C vs Resistance/Voltage Drop Temperature Voltage Resistance DropModule Address Module SwitchControl Modules Input Options ModuleStarter Management Module SMM Fig Processor/Sensor Input/Output Module Psio FigGRD Four-In/Two-Out Module Fig Installation of NEW Psio ModuleSwitch Setting Options Module Options ModulePhysical Data and Wiring Schematics 4-In/2-Out ModuleCondenser Total Weight Condenser Charge Additional Cooler WeightsWeight Vessel SIZE² 100Drive Component Weights Additional Condenser WeightsCompressor Weight and Elbow Weight 101Ð Total Motor Weight, SI kg Ð Total Motor Weight, English lb102 Approximate Refrigerant HCFC-134a Charge Marine Waterbox Cover WeightsNIH Waterbox Cover Weights 103Relief Valve Locations and Data Auxiliary Systems, Electrical Data104 Compressor Fits and Clearances 105Clearance Type Description 106Measure 107 Tabulation Ð Impeller Clearances Open-Drive Compressors17FX 108 Press 109Temp Tewac110 111 112 113 GeneralT1-T4 114GND Ð Ground 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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