Carrier 17EX specifications

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NOTE: This schedule is for illustration only, and is not in- tended to be a recommended schedule for chiller operation.

Depending on its operating mode, the chiller uses the fol- lowing occupancy schedules:

·LOCAL mode Ð Occupancy Schedule 01(OCCPC01 on the SCHEDULE screen).

·ICE BUILD mode Ð Occupancy Schedule 02 (OC- CPC02 on the SCHEDULE screen).

·CCN mode Ð Occupancy Schedule 03-99 (OCCPC02- OCCPC99 on the SCHEDULE screen).

The CCN schedule number is speci®ed on the CONFIG screen, which is accessed from the EQUIPMENT CON- FIGURATION table. The schedule number can be any value from 03 to 99. If this schedule number is changed on the CONFIG screen, the operator must use the ATTACH TO NET- WORK DEVICE screen to upload the new number into the schedule screen. See Fig. 12.

Safety Controls Ð The PIC monitors all safety control inputs, and if required, shuts down the chiller or limits the guide vanes to protect the chiller from possible damage from several conditions, including:

·high bearing temperature

·high motor winding temperature

·high discharge temperature

·low compressor oil pressure

·low gear oil pressure

·high gear oil temperature

·low cooler refrigerant temperature/pressure

·condenser high pressure or low pressure

·inadequate water/brine cooler and condenser ¯ow

·high, low, or loss of voltage

·excessive motor acceleration time

·excessive starter transition time

·lack of motor current signal

·excessive motor amps

·excessive compressor surge

·temperature and transducer faults

Starter faults or optional protective devices within the starter can shut down the chiller. These devices depend on what options have been purchased.

If a compressor motor overload or ground fault occurs, check the motor for grounded or open phases before at- tempting a restart.

If the PIC control initiates a safety shutdown, the control displays a primary and secondary alarm message on the LID, energizes an alarm relay in the starter, and blinks the alarm light on the control panel. The alarm information is stored in memory and can be viewed on the LID by accessing the ALARM HISTORY table along with a troubleshooting message.

To give a more speci®c operating condition warning, the operator can also de®ne alert limits on various monitored inputs. Safety contact and alert limits are de®ned in Table 3. Alarm and alert messages are listed in the Troubleshooting Guide section, page 83.

SHUNT TRIP Ð The PIC can include an optional shunt trip function that acts as a safety trip. The shunt trip is wired from an output on the SMM to the motor circuit breaker. If the PIC tries to shut down the compressor using normal shut- down procedures but is unsuccessful for 30 seconds, the shunt trip output is energized and trips off the circuit breaker. If ground fault protection has been applied to the starter, the ground fault trip also energizes the shunt trip to trip the cir- cuit breaker.

Default Screen Freeze Ð When the chiller is in an alarm state, the default LID display freezes; that is, it stops updating. The ®rst line of the LID default screen displays a primary alarm message; the second line displays a second- ary alarm message. The LID default screen freezes to allow the operator to see the condition of the chiller at the time of the alarm. Knowledge of the operating state of the chiller at the time an alarm occurs is useful when troubleshooting. Cur- rent chiller information can be viewed on the STATUS screens (see Table 2, Examples 1-4). Once all existing alarms are

cleared by pressing the RESET softkey, the default LID screen returns to normal operation.

Auxiliary Compressor Oil Pump Control Ð The compressor oil pump (optional) is controlled by the PIC. If, during start-up, the main oil pump cannot raise pressure to 18 psi (124 kPa), the auxiliary oil pump (optional) is ener- gized. During compressor operation, the auxiliary oil pump is energized if the oil pressure falls below the alert threshold (18 psi [124 kPa]). Once the auxiliary compressor oil pump is running, it stays on until the compressor is turned off and is deenergized along with the main oil pump after the post- lubrication period.

Auxiliary Gear Oil Pump Control Ð The optional auxiliary gear oil pump is controlled by the PIC. During start- up, if the main gear oil pump cannot raise the oil pressure at least 20 psi (139 kPa), the auxiliary gear oil pump is ener- gized. If, after 30 seconds, the required oil pressure has not been established, the PIC initiates an alarm and does not al- low the chiller to start. During operation, the auxiliary gear oil pump is energized if the oil pressure falls below the alert threshold (15 to 20 psi [103 to 139 kPa]). Once the auxiliary gear oil pump is running, it stays on until the compressor is turned off and is deenergized with the main gear oil pump after the post-lubrication period.

Shaft Seal Oil Control Ð For all open-drive chillers, the shaft seal must be bathed in oil at all times, especially when the chiller is not running. This ensures that refrigerant will not leak past the seal. The PIC energizes the compressor oil pump for one minute if the oil pump has not operated during the past 12 hours.

IMPORTANT: If control power is turned off for more than 12 hours, the refrigerant charge must be pumped into the economizer/storage vessel. Because the oil heater is also turned off during this time, storing the refrig- erant prevents refrigerant from migrating into the oil.

Ramp Loading Control Ð Ramp loading control slows down the rate at which the compressor loads up. It prevents the compressor from loading up during the short time be- tween chiller start-up and the time the chilled water loop has to be brought down to normal design conditions. Ramp load- ing helps to reduce electrical demand by slowly bringing the chilled water temperature to the control point temperature. The total power draw during this period stays almost unchanged.

The PIC bases ramp loading on either the chilled water temperature or on motor load. See the Table 2, Example 6 (CONFIG screen).

1.The temperature ramp loading rate is an operator- con®gured value that limits the rate at which either the leaving chilled water or entering chilled water tempera- ture decreases (TEMP PULLDOWN DEG/MIN param- eter on the CONFIG screen). The lowest temperature ramp rate is used the ®rst time the chiller is started (at com- missioning). The lowest temperature ramp rate is also used if chiller power has been off for 3 hours or more (even if the motor ramp load control method has been selected).

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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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