Carrier 17EX specifications

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Water/Brine Reset Ð Three types of chilled water/ brine reset are available, Reset Type 1, Reset Type 2, and Reset Type 3. They can be viewed or modi®ed on the CON- FIG screen (accessed from the EQUIPMENT CONFIGU- RATION table). See Table 2, Example 6.

The LID default screen status message indicates when a reset is active. The WATER/BRINE CONTROL POINT tem- perature on the STATUS01 table indicates the chiller's cur- rent reset temperature.

To con®gure a reset type, input all con®guration informa- tion for that reset type on the CONFIG screen. Then activate the reset type by entering the reset type number in the SELECT/ ENABLE RESET TYPE input line.

RESET TYPE 1 (Requires an optional 8-input module) Ð Reset Type 1 is an automatic chilled water temperature reset based on a 4 to 20 mA input signal. The value for Rest Type 1 is user con®gurable (DEGREES RESET AT 20 mA). It is a temperature that corresponds to a 20 mA signal. (4 mA corresponds to 0° F [0° C]; 20 mA corresponds to the tem- perature entered by the operator.)

This reset type permits up to ±30° F (±16° C) of auto- matic reset to the chilled water/brine temperature set point, based on the input from a 4 to 20 mA signal. The signal is hardwired into the No. 1 eight-input module.

If the 4 to 20 mA signal is externally powered from the 8-input module, the signal is wired to terminals J1-5(+) and J1-6(±). If the signal is powered internally by the 8-input module (for example, when using variable resistance), the signal is wired to J1-7(+) and J1-6(±). The PIC must be con®gured on the SERVICE2 screen to ensure that the appropriate power source is identi®ed. See Table 2, Example 9, 20 mA POWER CONFIGURATION.

RESET TYPE 2 (Requires an optional 8-input module) Ð Reset Type 2 is an automatic chilled water temperature reset based on a remote temperature sensor input.

This reset type permits ±30° F (±16° C) of automatic re- set to the set point based on a temperature sensor wired to the No. 1 eight-input module (see wiring diagrams or cer- ti®ed drawings). The temperature sensor must be wired to terminal J1-19 and J1-20.

Con®gure Reset Type 2 on the CONFIG screen (Table 2, Example 6). Enter the temperature of the remote sensor at the point where no temperature reset will occur (REMOTE TEMP [NO RESET]). Next, enter the temperature at which the full amount of reset will occur (REMOTE TEMP [FULL RESET]). Then, enter the maximum amount of reset re- quired to operate the chiller (DEGREES RESET). Reset Type 2 can now be activated.

RESET TYPE 3 Ð Reset Type 3 is an automatic chilled wa- ter temperature reset based on cooler temperature differ- ence. This reset adds ±30° F (±16° C) based on the tempera- ture difference between entering and leaving chilled water. Reset Type 3 is the only reset available without the need for a No. 1 eight-input module. No wiring is required for Reset Type 3, because it already uses the cooler water sensors.

Con®gure Reset Type 3 on the CONFIG screen (Table 2, Example 6). Enter the chilled water temperature difference (the difference between entering and leaving chilled water) at which no temperature reset occurs (CHW DELTA T [NO RESET]). This chilled water temperature difference is usu- ally the full design load temperature difference. Enter the difference in chilled water temperature at which the full amount of reset occurs (CHW DELTA T [FULL RESET]). Next, enter the amount of reset (DEGREES RESET). Reset Type 3 can now be activated.

Demand Limit Control Option (Requires Optional 8-Input Module) Ð The demand limit may be externally controlled with a 4 to 20 mA signal from an Energy Management System (EMS). The option (20 mA DE- MAND LIMIT OPTION) is enabled or disabled on the CON- FIG screen (Table 2, Example 6). When enabled, the control is set for 100% demand with 4 mA and an operator con®g- ured minimum demand set point at 20 mA (DEMAND LIMIT AT 20 mA) .

The EMS demand reset input is hardwired into the No. 1 8-input module. The signal may be internally powered by the module or externally powered. If the signal is externally powered, the signal is wired to terminals J1-1(+) and J1-2(±). If the signal is internally powered, the signal is wired to terminals J1-3(+) and J1-2(±). When enabled, the control is set for 100% demand with 4 mA and an operator con®g- ured minimum demand set point at 20 mA (DEMAND LIMIT AT 20 mA).

Surge Prevention Algorithm Ð Surge occurs when lift conditions become so high that the gas ¯ow across the impeller reverses. This condition can eventually cause chiller damage. Lift is de®ned as the difference between the pres- sure at the impeller eye and the impeller discharge. The maxi- mum lift that a particular impeller wheel can produce varies with the gas ¯ow across the impeller and the size of the wheel.

The surge prevention algorithm is operator con®gurable and can determine if lift conditions are too high for the com- pressor. If they are, the PIC takes corrective action. The al- gorithm also noti®es the operator, via the LID, that chiller operating conditions are marginal.

The surge prevention algorithm ®rst determines if correc- tive action is necessary. This is done by checking 2 sets of operator con®gured data points: the minimum load points (MIN. LOAD POINTS [T1/P1]) and the maximum load points (FULL LOAD POINTS [T2/P2]). See the SERVICE1 screen or Table 2, Example 8. These points have default set- tings. Information on how to modi®y the default minimum and maximum load points can be found in the Input Service Con®gurations section on page 54.

Figures 18 and 19 graphically display these settings and the algorithm function. The 2 sets of load points (default set- tings) describe a line that the algorithm uses to determine the maximum lift of the compressor. Whenever the actual differential pressure between the cooler and condenser and the temperature difference between the entering and leaving chilled water are above the line on the graph (as de®ned by the minimum and maximum load points) the algorithm goes into a corrective action mode. If the actual values are below the line, the algorithm takes no action.

Corrective action can be taken by making one of 2 choices. If the optional hot gas bypass line is present, and the op- erator selects the hot gas bypass option on the SERVICE1 screen (selects 1 for the SURGE LIMIT/HGBP OPTION), then the hot gas bypass valve can be energized. If the hot gas bypass option is not present, then the SURGE LIMIT/HGBP OPTION is on the default setting (0), and the guide vanes are held. (Also see Table 4, Capacity Overrides.) Both cor- rective actions reduce the lift experienced by the compressor and help to prevent a surge condition.

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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 Abbreviations Introduction17EX 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 PIC LIDPsio GRD Equip GND ÐTewac PROCESSOR/SENSOR INPUT/OUTPUT Module Psio LID Operation and Menus FigGeneral 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 3 Ð STATUS03 Display Screen Example 2 Ð STATUS02 Display ScreenMenu Status Example 5 Ð Setpoint Display Screen Example 4 Ð STATUS04 Display ScreenMenu ECW Control Option Example 6 Ð Configuration Config Display ScreenICE 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 14 Ð Maintenance MAINT04 Display Screen Example 13 Ð Maintenance MAINT03 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 Check Optional Pumpout Compressor Water Pip Inspect Wiring900 500 901 7000 1000 7001-14500 2500 Recommended Motor Fastener Tightening Torques External Gear Pre-Start ChecksExternal Gear Lubrication System Mechanical Starters Check StarterSOLID-STATE Starters Input the Design Set Points Ð To modify the set Set Up Chiller Control CongurationInput the Local Occupied Schedule OCCPC01S Surge Limiting or Change the LID Configuration if NecessaryT1/P1 Full Load Points T2/P2 Increase P1 by Decrease P1 by Load Surge Prevention Occurs TOO Soon Occurs TOO Late50% Initial START-UP Charge Refrigerant into ChillerControl Test Menu Functions Tests to be Devices Tested PerformedCheck Motor Rotation Dry Run to Test Start-Up SequenceInitial 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 Filters17EX Chiller Oil Specications Compressor OILPumpout 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 ModuleStarter Management Module SMM Fig Processor/Sensor Input/Output Module Psio 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, SI kg Ð Total Motor Weight, English lb102 NIH Waterbox Cover Weights Marine Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103Relief Valve Locations and Data Auxiliary Systems, Electrical Data104 105 Compressor Fits and ClearancesClearance Type Description 106Measure 107 Tabulation Ð Impeller Clearances Open-Drive Compressors17FX 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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