Carrier 17EX specifications Motor Riggings

Page 81

14.Reinstall the bearing housing split bolts. Before torqu- ing bearing housing cap bolts, rotate the shaft by hand while bumping the bearing housing with a rubber or raw- hide mallet in the horizontal and axial planes to allow the bearings to align themselves to the shaft journals.

15.Torque the bearing housing cap bolts by following the torque values as provided in Table 6 on page 51.

Motor Handling/Rigging Ð Each motor is provided with lifting lugs, welded to the four corners of the motor frame, for lifting the assembled chiller. The motor should always be lifted by using the lifting lugs located on all four corners of the motor frame. (See Fig. 46.)

Spreader bars of adequate capacity and number must be used to avoid applying any pressure against the top air housing with the lifting plugs.

Fig. 46 Ð Motor Riggings

If the motor is lifted with the top air housing removed, the angle of the lifting slings with the horizontal should never be less than 45 degrees.

With the exclusion of the TEWAC cooler, the top air hous- ing is provided with 3¤4-10 tapped holes for lifting devices to be installed in order to remove the air housing from the mo- tor. The top air housing can be detached by removing the enclosure holddown bolts, located in the inside corners of the enclosure. These enclosure holddown bolts are accessed through the louver/screens located on the front and rear end of the chiller or through access panels bolted to the sides of the enclosure.

Uneven lifting must always be avoided. When single point lifting is to be used, slings of equal lengths must always be used to avoid uneven lifting.

Under no circumstances should the motor be lifted us- ing the shaft as an attachment point.

NOTE: Refer to weights speci®ed on certi®ed drawing to determine proper lifting equipment required for speci®c com- ponents or assemblies.

Motor Storage Ð If the chiller is to be placed in ex- tended shutdown, certain precautions must be taken to

provide proper protection while the motor is being stored. The motor should be stored under cover in a clean, dry lo- cation and should be protected from rapid temperature changes.

Since moisture can be very detrimental to electrical com- ponents, the motor temperature should be maintained at ap- proximately 5° F (3° C) above the dew point temperature by providing either external or internal heat. If the motor is equipped with space heaters, they should be energized at the voltage shown by the space heater nameplate attached to the motor. Incandescent light bulbs can be placed within the mo- tor to provide heat. However, if used, they must not be al- lowed to come in contact with any parts of the motor because of the concentrated hot spot that could result.

This motor has been provided with a shaft shipping brace or shipping bolt (normally painted yellow) to prevent shaft movement during transit, it must be removed to allow shaft rotation (refer to Before Initial Start-Up, Remove Shipping Packaging section, page 45). It is very important that this brace be reinstalled exactly as it was originally, before the motor is moved from storage or any time when the motor is being transported. This prevents axial rotor movement that might damage the bearings.

Motors equipped with sleeve bearings are shipped from the factory with the bearing oil reservoirs drained. In stor- age, the oil reservoirs should be properly ®lled to the center of the oil level gage with a good grade of rust inhibiting oil (refer to the certi®ed drawing for oil viscosity and any spe- cial requirements). To keep the bearing journals well oiled and to prevent rusting, the motor shaft should be rotated sev- eral revolutions every 2 weeks. While the shaft is rotating it should be pushed to both extremes of the endplay to allow for oil ¯ow over the entire length of the journals.

External Gear Storage Ð All internal and unpainted external surfaces of the gear drives have been treated with a rust preventative at the factory before shipment. The pro- tective life of the rust preventative varies with temperature ¯uctuations, atmospheric moisture content, degree of expo- sure to the elements during storage, and degree of contact with other objects.

Inspect all machined surfaces, and spray or add rust in- hibitor to exposed metal surfaces that may have had the pro- tective coating removed during shipping and handling.

To be sure that the gear drive operates satisfactorily at start- up, take certain precautions when you receive it. The ex- pected length of storage and the storage atmosphere dictate the maintenance schedule to be followed. The gear must al- ways be stored in its operating position, level on its mount- ing feet, and free of loads or weights on input and output shafts.

SHORT-TERM STORAGE (Indoors) Ð If the units are to be stored for 30 days or less, observe the following precau- tions.

·Store the unit in a clean, dry location with the factory pack- ing intact and with as nearly a constant temperature as possible.

·Elevate the unit a minimum of 6 in. above the ¯oor level.

·Avoid areas that are subject to extremes in temperature, vibration, and humidity.

LONG-TERM STORAGE (Indoors) Ð If the unit is to be stored for more than 30 days, observe the following precau- tions. Store in a clean, dry location. Elevate the unit at a minimum of 6 in. above the ground ¯oor level. Avoid areas that are subject to extremes in temperature, vibration, and humidity. In addition, do one of the following:

·Remove the breather and replace it with pipe plugs. Pack the entire seal area with grease to form a vapor barrier and seal with tape.

81

Page 80 Page 82
Image 81
Page 80 Page 82
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.
Top Page Image Contents