Carrier 17EX specifications Start-Up/Shutdown, Recycle Sequence Fig

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7.Press SELECT to access the holiday table. The LID

screen now shows the holiday start month and day, and how many days the holiday period will last. See Fig. 24.

8.Press NEXT or PREVIOUS to highlight HOLIDAY START MONTH, START DAY, or DURATION.

9.Press SELECT to modify the month, day, or duration.

10.Press INCREASE or DECREASE to change the se- lected value.

11.Press ENTER to save the changes.

12.Press EXIT to return to the previous menu.

START-UP/SHUTDOWN/

RECYCLE SEQUENCE (Fig. 22)

Local Start-Up Ð Local start-up (or a manual start-up)

is initiated by pressing the LOCAL menu softkey which is

on the default LID screen. Local start-up can proceed if the OCCUPIED ? parameter on the STATUS01 table is set to YES and after the internal 15-minute start-to-start timer and the stop-to-start inhibit timer have expired.

The CHILLER START/STOP parameter on the STA- TUS01 screen may be overridden to start, regardless of the time schedule, in order to start the chiller locally. Also, the remote contacts may be enabled through the LID and closed to initiate a start-up.

Whenever the chiller is in LOCAL control mode, the PIC waits for the current time to coincide with an occupied time period as con®gured in the local time schedule (OCCPC01S) and for the remote contacts to close, if enabled. The PIC then performs a series of pre-start checks to verify that all pre-start alerts and safeties are within the limits shown in Table 3. The RUN STATUS line on the STATUS01 screen now reads STARTUP.

If the checks are successful, the chilled water/brine pump relay is energized. Five seconds later, the condenser pump relay is energized. One minute later the PIC monitors the chilled water and condenser water ¯ow switches, and waits until the WATER FLOW VERIFY TIME (operator con®g- ured, default 5 minutes) to con®rm ¯ow. See the SERVICE1 screen or Table 2, Example 8. After ¯ow is veri®ed, the chilled water/brine temperature is compared to WATER/BRINE CON- TROL POINT plus DEADBAND. If the temperature is less than or equal to this value, the PIC turns off the condenser pump relay and goes into a RECYCLE mode.

If the water/brine temperature is high enough, the start-up sequence continues and checks the guide vane position. If the guide vanes are more than 6% open, the start-up waits until the PIC closes the vanes. If the vanes are closed, and the oil pump pressure is less than 3 psid (21 kPad), the oil pump relay is then energized. The PIC then waits a mini- mum of 15 seconds (maximum 5 minutes) to verify that the compressor oil pressure (OIL PRESSURE on the STA- TUS01 screen) has reached 15 psid (103 kPad). At the same time, the PIC waits up to 30 seconds to verify that the gear oil pressure (GEAR OIL PRESSURE on the STATUS04 screen) has reached 24 psi (166 kPa). After the oil pressures are veri®ed, the PIC waits 10 seconds, and then the compressor start relay (1CR) is energized to start the compressor.

LEGEND

AÐ START INITIATED Ð Prestart checks made; chilled water pump started.

BÐ Condenser water pump started (5 seconds after A).

CÐ Water ¯ows veri®ed (one minute to 5 minutes maximum after A). Chilled water temperature checked against control point. Guide vanes checked for closure. Oil pumps started; tower fan control enabled.

DÐ Oil pressure veri®ed (for compressor, 15 seconds minimum, 300 seconds maximum, after C; for gear, within 30 seconds after C).

EÐ Compressor motor starts, compressor ontime and service ontime starts, 15-minute inhibit timer starts (10 seconds after D). Start-in-12 hours counter advances by one.

FÐ SHUTDOWN INITIATED Ð Compressor motor stops, guide vanes close, compressor ontime and service ontime stops, stop- to-start inhibit timer starts.

GÐ After the post-lube period, oil and evaporator pumps deener- gized. Post-lube con®gurable to between one and 5 minutes after Step F.

O/A Ð Restart permitted (both inhibit timers expired) (minimum of 15 minutes after E; minimum of 1 minute after F).

Fig. 22 Ð Control Sequence

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents Inspect Water Piping Piping Check Relief Devices Inspect WiringOCCPC01S Input Service Congurations Coupling Maintenance Motor MaintenanceContents Abbreviations Introduction17EX Chiller Familiarization Certified PerformanceTypical 17EX Chiller Components Lubrication Cycle OIL Cooling CycleRefrigeration, Cycle Starters17EX Compressor Lubrication Cycle Denitions ControlsProcessor Sensor Input/Output Module Control Center Temperature Sensors See Fig Pressure TransducersMajor PIC Components Panel Locations PIC Component Panel Location17EX 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 ScreenControl Test Service TableAlarm History Equipment ConfigurationLID CCNCarrier Comfort Network Hgbp Ð Hot Gas BypassHgbp SetpointChwr ChwsMenu Status Select Description Range Units Reference Point Name Alarm HistoryLID Display Data Example 1 Ð STATUS01 Display ScreenExample 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 Menu Service Example 9 Ð SERVICE2 Display ScreenSpare Alert Enable Example 10 Ð SERVICE3 Display ScreenBearing Temperature Example 11 Ð Maintenance MAINT01 Display ScreenExample 12 Ð Maintenance MAINT02 Display Screen Discharge 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 Motor Before Initial START-UPJob Data Required Equipment RequiredPage 17EX Leak Test Procedures Temperature C Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C Temperature FDehydration 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% Tests to be Devices Tested Performed Charge Refrigerant into ChillerInitial START-UP Control Test Menu FunctionsCheck Motor Rotation Dry Run to Test Start-Up SequenceInitial Motor START-UP Page Flange Nut Tightening Torques Low Speed Couplings Only General Recommendations Calibrate Motor Current Demand SettingCheck Oil Pressure and Compressor Stop To Prevent Accidental Start-Up Ð The PIC can beStopping the Chiller Operating InstructionsOperator Duties Starting 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 MisalignmentChanging the Oil Filters Weekly MaintenanceScheduled Maintenance Check Safety and Operating Controls Monthly17EX 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 MAINT04 MAINT01MAINT02 MAINT03PIC 1CR AUXOilpd OiltAutorestart in Progress Starts Limit ExceededFailure to Stop FaultOperation Potential FREEZE-UPRunning Ð Demand Limited Running Ð Temp ControlChiller Protect Limit Faults Autorestart Pending Sensor Fault AlertLOW OIL Pressure AlertDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Possible Cause Action External Gear Troubleshooting GuideProblem Possible Cause Ð Item NO.sTemperature Voltage Resistance Drop Ð Thermistor Temperature F vs Resistance/Voltage DropTemperature Voltage Resistance Drop Ð Thermistor Temperature C vs Resistance/Voltage DropInput Options Module Module SwitchControl Modules Module AddressStarter Management Module SMM Fig Processor/Sensor Input/Output Module Psio FigGRD Options Module Installation of NEW Psio ModuleSwitch Setting Options Module Four-In/Two-Out Module Fig4-In/2-Out Module Physical Data and Wiring Schematics100 Additional Cooler WeightsWeight Vessel SIZE² Condenser Total Weight Condenser Charge101 Additional Condenser WeightsCompressor Weight and Elbow Weight Drive Component WeightsÐ Total Motor Weight, SI kg Ð Total Motor Weight, English lb102 103 Marine Waterbox Cover WeightsNIH Waterbox Cover Weights Approximate Refrigerant HCFC-134a ChargeRelief 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 Tewac 109Temp Press110 111 112 General 113Terminal Strip 114GND Ð Ground T1-T4Index 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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