Carrier 17EX specifications

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Oil Cooler Ð The oil for the external gear and the com- pressor must be cooled while the compressor is running. The compressor oil cooler is a water-cooled, helical, tube-in- shell type heat exchanger. A plug valve is manually set to maintain proper temperatures. Set the valve to maintain a 145 F (63 C) oil sump temperature while the compressor is running.

The gear oil cooler is a water-cooled, helical tube-in-shell type heat exchanger. A plug valve is manually set to main- tain proper temperatures. Set the valve to maintain the oil temperature leaving the cooler at 130 F (54 C) while the com- pressor is running.

Remote Start/Stop Controls Ð A remote device, such as a time clock with a set of contacts, may be used to start and stop the chiller. However, the device should not be pro- grammed to start and stop the chiller more than 2 or 3 times every 12 hours. If more than 8 starts in 12 hours occur, the Excessive Starts alarm is displayed, and the chiller is pre- vented from starting. The operator must reset the alarm at the LID in order to override the starts counter and start the chiller. If the automatic restart after a power failure (AUTO RESTART OPTION ) is not activated (disabled) when a power failure occurs and the remote contact is closed, the PIC con- trol activates an alarm because of the loss of voltage.

The contacts for remote starting are wired into the starter at terminal strip TB5, terminals 8A and 8B. See the certi®ed drawings for further details on contact ratings. The contacts must be dry (no power).

Spare Safety Inputs Ð Normally closed (NC) digital inputs for additional ®eld-supplied safeties may be wired to the spare protective limits input channel in place of the factory- installed jumper. (Wire multiple inputs in series.) Opening any contact results in a safety shutdown and LID display. Refer to the certi®ed drawings for safety contact ratings.

Analog temperature sensors may also be added to the op- tions modules, if installed. These may be programmed to ac- tivate an alert on the CCN network, but not shut down the chiller.

Spare Alarm Contacts Ð Two spare sets of alarm con- tacts are provided in the starter. The contact ratings are pro- vided in the certi®ed drawings. The contacts are located on terminal strip TB6, terminals 5A and 5B, and terminals 5C and 5D.

Condenser Pump Control Ð The chiller monitors the condenser pressure (CONDENSER PRESSURE param- eter on the STATUS01 screen) and may turn on the con- denser pump if the pressure becomes too high whenever the compressor is shut down. The condenser pressure override (COND PRESSURE OVERRIDE parameter on the SERVICE1 screen) is the value that determines this pressure point. Its default value is 125 psi (862 kPa). If the condenser pressure is greater than or equal to the condenser pressure override, and the entering condenser water temperature (EN- TERING CONDENSER WATER parameter on the STATUS01 screen) is less than 115 F (46 C), then the con- denser pump energizes to try to decrease the pressure. The pump turns off when the condenser pressure is 5psi (34 kPa) less than the pressure override, or when the condenser re- frigerant temperature (CONDENSER REFRIG TEMP on the STATUS01 screen) is within 3° F (2° C) of the entering con- denser water temperature.

Condenser Freeze Prevention Ð This control al- gorithm helps prevent condenser tube freeze-up by energiz- ing the condenser pump relay. If the pump is controlled by the PIC, starting the pump helps prevent the water in the condenser from freezing. Condenser freeze prevention can occur whenever the chiller is not running except when it is either actively in pumpdown or in pumpdown lockout with the freeze prevention disabled.

When the condenser refrigerant temperature is less than or equal to the condenser freeze point (CONDENSER FREEZE POINT on the SERVICE1 screen), or the entering condenser water temperature is less than or equal to the condenser freeze point, then the condenser water pump (CONDENSER WA- TER PUMP on the STATUS02 screen) is energized until the condenser refrigerant temperature is greater than the con- denser freeze point plus 5° F (2.7° C). If the chiller is in PUMPDOWN mode and the pump is energized, the PIC ac- tivates an alarm. If the chiller is not in PUMPDOWN mode and the pump is energized, the PIC activates an alert. If the chiller is in RECYCLE shutdown mode, the mode transi- tions to SHUTDOWN (non-recycle shutdown).

Tower-Fan Relay Ð This control can be used to assist the condenser water temperature control system (®eld sup- plied). Low condenser water temperature can cause the chiller to shut down on low refrigerant temperature. The tower fan relay, located in the starter, is controlled by the PIC to en- ergize and deenergize as the pressure differential between cooler and condenser vessels changes. This function pre- vents low condenser water temperature and maximizes chiller efficiency. The tower-fan relay can only accomplish this if the relay has been added to the cooling tower temperature controller. The tower-fan relay (TOWER FAN RELAY on the STATUS02 screen) is turned on whenever the condenser wa- ter pump is running, ¯ow is veri®ed, and the difference be- tween cooler and condenser pressure is more than 30 psid (207 kPad) or entering condenser water temperature is greater than 85 F (29 C). The tower-fan relay is deenergized when- ever the condenser pump is off, ¯ow is lost, the evaporator refrigerant temperature is less than the override temperature, or the differential pressure is less than 28 psid (193 kPad) and entering condensing water is less than 80 F (27 C).

IMPORTANT: A ®eld-supplied water temperature con- trol system for condenser water should be installed. The system should maintain the leaving condenser wa- ter temperature at 20° F (11° C) above the leaving chilled water temperature.

The tower-fan relay control is not a substitute for a con- denser water temperature control. When used with a wa- ter temperature control system, the tower-fan relay con- trol can be used to help prevent low condenser water temperatures and associated problems.

Auto. Restart After Power Failure Ð This option, which may be viewed or modi®ed on the CONFIG screen (the AUTO RESTART OPTION parameter), can be enabled or disabled. If this option is enabled, the chiller starts up au- tomatically after a single cycle dropout; low, high, or no volt- age; and the power is within ±10% of normal. The 15-minutestart-to-start timer and the stop-to-start timer are ignored during this type of start-up.

When power is restored after a power failure, and if the compressor had been running, the oil pump is energized for one minute before the evaporator pump is energized. The Auto. Restart function then continues like a normal start-up.

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Piping Check Relief Devices Inspect Wiring OCCPC01S Input Service CongurationsCoupling Maintenance Motor Maintenance Inspect Water PipingContents Introduction Abbreviations17EX Chiller Familiarization Performance CertifiedTypical 17EX Chiller Components OIL Cooling Cycle Lubrication CycleStarters Refrigeration, Cycle17EX Compressor Lubrication Cycle Controls DenitionsTemperature Sensors See Fig Pressure Transducers Major PIC Components Panel LocationsPIC 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 YES or no , on or OFF , etc. to select the desired state Override OperationsDefault Screen 17EX LID Menu StructureService Table Alarm HistoryEquipment Configuration Control TestCCN Carrier Comfort NetworkHgbp Ð Hot Gas Bypass LIDSetpoint ChwrChws HgbpDescription Range Units Reference Point Name Alarm History LID Display DataExample 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 Example 7 Ð LEAD/LAG Configuration Display Screen LAG =2, Standby =3Example 8 Ð SERVICE1 Display Screen Example 9 Ð SERVICE2 Display Screen Spare Alert EnableExample 10 Ð SERVICE3 Display Screen Menu ServiceExample 11 Ð Maintenance MAINT01 Display Screen Example 12 Ð Maintenance MAINT02 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 To Access the Service Screens Example of Holiday Period ScreenSTART-UP/SHUTDOWN Recycle Sequence FigPage Before Initial START-UP Job Data RequiredEquipment Required MotorPage 17EX Leak Test Procedures Ð HFC-134a Pressure Ð Temperature F Ð HFC-134a Pressure Ð Temperature CTemperature F 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% Charge Refrigerant into Chiller Initial START-UPControl 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 Calibrate Motor Current Demand Setting Check Oil Pressure and Compressor StopTo Prevent Accidental Start-Up Ð The PIC can be General RecommendationsOperating Instructions Operator DutiesStarting the Chiller 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 DowelingWeekly Maintenance Scheduled 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 Troubleshooting Guide Controls for Optional Pumpout CompressorPage MAINT01 MAINT02MAINT03 MAINT041CR AUX OilpdOilt PICStarts Limit Exceeded Autorestart in ProgressFault OperationPotential FREEZE-UP Failure to StopRunning Ð Temp Control Running Ð Demand LimitedChiller Protect Limit Faults Sensor Fault Alert LOW OIL PressureAlert Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY External Gear Troubleshooting Guide ProblemPossible Cause Ð Item NO.s 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 Switch Control ModulesModule Address Input Options ModuleProcessor/Sensor Input/Output Module Psio Fig Starter Management Module SMM FigGRD Installation of NEW Psio Module Switch Setting Options ModuleFour-In/Two-Out Module Fig Options ModulePhysical Data and Wiring Schematics 4-In/2-Out ModuleAdditional Cooler Weights Weight Vessel SIZE²Condenser Total Weight Condenser Charge 100Additional Condenser Weights Compressor Weight and Elbow WeightDrive Component Weights 101Ð Total Motor Weight, English lb Ð Total Motor Weight, SI kg102 Marine Waterbox Cover Weights NIH Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 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 108 109 TempPress Tewac110 111 112 113 General114 GND Ð GroundT1-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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