Carrier 17EX Charge Refrigerant into Chiller, Initial START-UP, Control Test Menu Functions

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Table 8 Ð Control Test Menu Functions

TESTS TO BE

DEVICES TESTED

PERFORMED

 

1.Automated Tests* Operates the second through seventh tests

2. PSIO Thermistors

Entering chilled water

 

Leaving chilled water

 

Entering condenser water

 

Leaving condenser water

 

Discharge temperature

 

Bearing temperature

 

Motor winding temperature

 

Oil sump temperature

3.Options Thermistors Common chilled water supply sensor Common chilled water return sensor Remote reset sensor Temperature sensor Ð Spare 1

Spare 2

Spare 3

Spare 4

Spare 5

Spare 6

Spare 7

Spare 8

Spare 9

4. Transducers

Evaporator pressure

 

Condenser pressure

 

Oil pressure differential²

5.Guide Vane Actuator Open Close

6. Pumps

All pumps or individual pumps may be

 

activated:

 

Oil pump Ð Con®rm pressure

 

Chilled water pump Ð Con®rm ¯ow

 

Condenser water pump Ð Con®rm flow

 

Auxiliary oil pump Ð con®rm

 

pressure²

7.Discrete Outputs All outputs or individual outputs may

be energized:

Hot gas bypass relay Oil heater relay Motor cooling relay Tower fan relay Alarm relay

Shunt trip relay

8.Pumpdown/Lockout When using pumpdown/lockout, observe freeze up precautions when removing charge.

Instructs operator as to which valves to close and when.

Starts chilled water and condenser wa- ter pumps and con®rms ¯ows. Monitors Ð Evaporator pressure

Condenser pressure Evaporator temperature during pumpout procedures

Turns pumps off after pumpdown. Locks out compressor.

9.Terminate Lockout Starts pumps and monitors ¯ows. Instructs operator as to which valves to open and when.

Monitors Ð Evaporator pressure Condenser pressure Evaporator temperature during charging process

Terminates compressor lockout.

10. FX Gear Oil

Activates gear main oil pump; con-

Pump I/O

®rms pressure.

 

Activates optional gear auxiliary pump;

 

con®rms pressure.

*During any of the tests that are not automated, an out-of-range read- ing will have an asterisk (*) next to the reading and a message will be displayed.

²On open-drive chillers, differential pressure is the only oil pressure displayed.

See the Pumpout and Refrigerant Transfer Procedures (page 63) and Pumpout System Maintenance sections (page 83) for details on transferring refrigerant, oil speci®- cations, etc.

High Altitude Locations Ð Because the chiller is ini- tially calibrated at sea level, it is necessary to recalibrate the pressure transducers if the chiller is to be operated at a high altitude location. Please see the calibration procedure in the Troubleshooting Guide section.

Charge Refrigerant into Chiller

The transfer, addition, or removal of refrigerant in spring isolated chillers may place severe stress on external pip- ing if springs have not been blocked in both up and down directions.

The 17EX chiller may have the refrigerant already charged in the economizer/storage vessels. If chiller is not shipped fully charged, refrigerant is shipped separately to conform with transportation regulations. The 17EX may be ordered with a nitrogen holding charge of 15 psig (103 kPa). Evacu- ate the entire chiller, and charge chiller from refrigerant cylinders.

The full refrigerant charge on the 17EX will vary with chiller components and design conditions as indicated on the job data speci®cations. An approximate charge may be found in Physical Data and Wiring Schematics section, page 99. The full chiller charge is printed on the chiller identi®cation label.

Always operate the condenser and chilled water pumps during charging operations to prevent water in heat ex- changer tubes from freezing.

Use the CONTROLS TEST terminate lockout function to monitor conditions and start the pumps.

If the chiller has been shipped with a holding charge, add refrigerant through the refrigerant charging valve (Fig. 6) or to the pumpout charging connection. First evacuate the ni- trogen holding charge from the vessels. Charge the refrig- erant as a gas until the system pressure exceeds 35 psig (141 kPa). After the chiller is beyond this pressure, the re- frigerant should be charged as a liquid until all the recom- mended refrigerant charge has been added.

TRIMMING REFRIGERANT CHARGE Ð The 17EX is shipped with the correct charge for the design duty of the chiller. Trimming the charge can best be accomplished when the chiller is operating at design load. To trim, check the temperature difference between the leaving chilled water tem- perature and the cooler refrigerant temperature at full load design conditions. If necessary, add or remove refrigerant to bring the temperature difference to design conditions or a minimum differential.

INITIAL START-UP

Preparation Ð Before starting the chiller, check that the:

1.Power is on to the main starter, oil pump relay (which energizes both the compressor and gear oil pumps), tower fan starter, oil heater relay, and the chiller control center.

2.Cooling tower water is at proper level and at or below design entering temperature.

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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 Introduction Abbreviations17EX 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 LID PICPsio Equip GND Ð GRDTewac LID Operation and Menus Fig PROCESSOR/SENSOR INPUT/OUTPUT Module PsioGeneral 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 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 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 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 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 Inspect Wiring Check Optional Pumpout Compressor Water Pip900 500 901 7000 1000 7001-14500 2500 Recommended Motor Fastener Tightening Torques External Gear Pre-Start ChecksExternal 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% Initial START-UP Charge Refrigerant into ChillerControl Test Menu Functions 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 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 FiltersCompressor OIL 17EX Chiller Oil SpecicationsPumpout 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 ModuleProcessor/Sensor Input/Output Module Psio Fig Starter Management Module SMM 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, English lb Ð Total Motor Weight, SI kg102 NIH Waterbox Cover Weights Marine Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103Auxiliary Systems, Electrical Data Relief Valve Locations and Data104 105 Compressor Fits and Clearances106 Clearance Type DescriptionMeasure Tabulation Ð Impeller Clearances Open-Drive Compressors 10717FX 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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