Carrier 17EX Set Up Chiller Control Conguration, Input the Design Set Points Ð To modify the set

Page 54

1.Check that all wiring connections are properly termi- nated to the starter.

2.Verify that the ground wire to the starter is installed prop- erly and is of sufficient size.

3.Verify that the motors are properly grounded to the starter.

4.Check that all the relays are properly seated in their sockets.

5.Verify that the proper AC input voltage is brought into the starter per the certi®ed drawings.

6.Verify that the initial factory settings (i.e., starting torque, ramp potentiometers, etc.) are set per the manufacturer's instructions.

Compressor Oil Charge Ð If oil is added, it must meet Carrier's speci®cation for centrifugal compressor use as described in the Scheduled Maintenance, Oil Speci®ca- tions section (page 77).

Oil may be added through the compressor oil drain and charging valve (Fig. 2, Item 22) using a pump. The pump must be able to lift from 0 to 150 psig (0 to 1034 kPa), or above chiller pressure. However, an oil charging elbow on the seal-oil return chamber (Fig. 4, Item 3) allows oil to be added without pumping. The seal oil return pump automati- cally transfers the oil to the main oil reservoir.

Oil should only be charged or removed when the chiller is shut down. Maximum oil level is the middle of the upper sight glass.

Power Up the Controls and Check the Com- pressor Oil Heater Ð Be sure that an oil level is vis- ible in the compressor before energizing the controls. A separate disconnect energizes the oil heater and the control circuit. When ®rst powered, the LID should display the default screen within a short period of time.

The oil heater is energized by powering the control cir- cuit. This should be done several hours before start-up to minimize oil-refrigerant dilution. The oil heater is con- trolled by the PIC and is powered through a contactor in the power panel. Starters contain a separate circuit breaker to power the heater and the control circuit. This arrangement allows the heater to energize when the main motor circuit breaker is off for service work or extended shutdowns. The oil heater relay status can be viewed on the STATUS02 screen on the LID. Oil sump temperature can be viewed on the LID default screen.

SOFTWARE VERSION Ð The software version is always labeled on the PSIO module and on the back side of the LID module. The software number also appears on both the CONTROLLER IDENTIFICATION and LID CON- FIGURATION tables. See Fig. 15.

Set Up Chiller Control Con®guration

Do not operate the chiller before the control con®gu- rations have been checked and a Control Test has been satisfactorily completed. Protection by safety controls cannot be assumed until all control con®gurations have been con®rmed.

As you con®gure the 17EX chiller, write down all con- ®guration settings. A log, such as the one shown on pages CL-1 to CL-12, is a convenient way to list con®guration values.

Input the Design Set Points Ð To modify the set

points, access the SETPOINT menu. (Press the MENU and

SETPOINT softkeys.) From this menu, you can modify the base demand limit and the leaving chilled water, entering chilled water, and ice build set points. See Fig. 15 for the SETPOINT menu structure.

The PIC can control a set point according to ether the leav- ing or entering chilled water temperature. To change the type of control, access the CONFIG screen. Scroll down to high- light ECW CONTROL OPTION. To control the set point ac-

cording to the leaving chilled water, press the DISABLE

softkey; to control the set point according to the entering

chilled water, press the ENABLE softkey.

Input the Local Occupied Schedule (OCCPC01S)

ÐTo set up the occupied time schedule according to the site requirements, access the SCHEDULE screen on the LID.

(Press the MENU and SCHEDULE softkeys.) The de-

fault, factory-set schedule is 24 hours, occupied 7 days per week including holidays. For more information about how to set up a time schedule, see the Controls section, page 11.

If the ice build option is being used, con®gure the ice build schedule (OCCPC02S).

If a CCN system is being installed or if a secondary time schedule is required, con®gure the CCN occupancy sched- ule (OCCPC03S to OCCPC99S). This task is normally done using a CCN Building Supervisor terminal, but it can also be done at the LID. For more information on CCN func- tions, see 17EX CCN supplement. Also, in this manual, see the section on Occupancy Schedule, page 32.

Input Service Con®gurations Ð The following con- ®gurations are done from the SERVICE menu:

·password

·input time and date

·LID con®guration

·controller identi®cation

·service parameters

·equipment con®guration

·automated control test

PASSWORD Ð You must enter a password whenever you access the SERVICE screens. The default, factory-set pass- word is 1 - 1 - 1 - 1. The password may be changed from the LID CONFIGURATION screen. To change the password:

1.Press the MENU and SERVICE softkeys. Enter your password and highlight LID CONFIGURATION. Press the SELECT softkey. Only the last 5 entries on the LID

CONFIGURATION screen can be changed: BUS #, ADDRESS #, BAUD RATE, US IMP/METRIC, and

PASSWORD.

2.Use the ENTER softkey to scroll to PASSWORD. The ®rst digit of the password is highlighted on the LID screen.

3.To change the digit, press the INCREASE or DECREASE softkey. When you see the digit you want,

press the ENTER softkey.

4.The next digit is highlighted. Change it and the third and fourth digits in the same way you changed the ®rst.

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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 Introduction Abbreviations17EX 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 LID PICPsio Equip GND Ð GRDTewac LID Operation and Menus Fig PROCESSOR/SENSOR INPUT/OUTPUT Module PsioGeneral 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 2 Ð STATUS02 Display Screen Example 3 Ð STATUS03 Display ScreenMenu Status Example 4 Ð STATUS04 Display Screen Example 5 Ð Setpoint Display ScreenMenu Example 6 Ð Configuration Config Display Screen ECW Control OptionICE 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 13 Ð Maintenance MAINT03 Display Screen Example 14 Ð Maintenance MAINT04 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 Inspect Wiring Check Optional Pumpout Compressor Water Pip900 500 901 7000 1000 7001-14500 2500 External Gear Pre-Start Checks Recommended Motor Fastener Tightening TorquesExternal Gear Lubrication System Check Starter Mechanical StartersSOLID-STATE Starters Set Up Chiller Control Conguration Input the Design Set Points Ð To modify the setInput the Local Occupied Schedule OCCPC01S Change the LID Configuration if Necessary Surge Limiting orT1/P1 Full Load Points T2/P2 Load Surge Prevention Occurs TOO Soon Occurs TOO Late Increase P1 by Decrease P1 by50% Control Test Menu Functions Charge Refrigerant into ChillerInitial START-UP Tests to be Devices Tested PerformedDry Run to Test Start-Up Sequence Check Motor RotationInitial 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 FiltersCompressor OIL 17EX Chiller Oil SpecicationsPumpout 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 ModuleProcessor/Sensor Input/Output Module Psio Fig Starter Management Module SMM 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, English lb Ð Total Motor Weight, SI kg102 Approximate Refrigerant HCFC-134a Charge Marine Waterbox Cover WeightsNIH Waterbox Cover Weights 103Auxiliary Systems, Electrical Data Relief Valve Locations and Data104 Compressor Fits and Clearances 105106 Clearance Type DescriptionMeasure Tabulation Ð Impeller Clearances Open-Drive Compressors 10717FX 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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