Carrier 17EX specifications 113, General

Page 113

NOTES FOR FIG. 60

IGENERAL

1.0Starters shall be designed and manufactured in accordance with Carrier Engineering requirement Z-375.

1.1All ®eld-supplied conductors and devices, ®eld-installation wir- ing, and termination of conductors and devices must be in com- pliance with all applicable codes and job speci®cations.

1.2The routing of ®eld-installed conduit and conductors and the location of ®eld-installed devices must not interfere with equip- ment access of the reading, adjusting, or servicing of any component.

1.3Equipment installation and all starting and control devices must comply with details in equipment submittal drawings and literature.

1.4Contacts and switches are shown in the position they would assume with the circuit deenergized and the chiller shut down.

1.5WARNING: Do not use aluminum conductors.

1.6Installer is responsible for any damage caused by improper wiring between starter and chiller.

IIPOWER WIRING TO STARTER

2.0Provide a means of disconnecting power to the starter.

2.1Power conductor rating must meet minimum unit nameplate voltage and compressor motor RLA (rated load amps). When

3 conductors are used:

Minimum ampacity per conductor = 1.25 x compressor RLA.

When 6 conductors are used:

Minimum ampacity per conductor = 0.721 x compressor RLA.

2.2Lug adapters may be required if installation conditions dic- tate that conductors be sized beyond the minimum ampacity required. Contact starter supplier for lug information.

2.3Compressor motor and controls must be grounded by using equipment grounding lugs provided inside starter enclosure.

IIICONTROL WIRING

3.0Field supplied control conductors to be at least 18 AWG (American Wire Gage) or larger.

3.1Chilled water and condenser water ¯ow switch contacts, op- tional remote start device contacts, and optional spare safety device contacts must have 24 vdc rating. Maximum current is 60 mA; nominal current is 10 mA. Switches with gold plated bifurcated contacts are recommended.

3.2Remove jumper wire between 12A and 12B before connect- ing auxiliary safeties between these terminals.

3.3Pilot relays can control cooler and condenser pump and tower fan motor contactor coil loads rated up to 10 amps at 115 vac or up to 3 amps at 600 vac. Control wiring required for Carrier to start pumps and tower fan motors must be provided to as- sure chiller protection. If primary pump and tower motor con- trol is by other means, also provide a parallel means for con- trol by Carrier. Do not use starter control transformer as the power source for pilot relay loads.

3.4Do not route control wiring carrying 30 v or less within a conduit which has wires carrying 50 v or higher or alongside wires car- rying 50 v or higher.

3.5Voltage selector switch in chiller power panel is factory set for 115 v control and oil heater power source. The 230 v position is not used. If switch is set to 230 v position, oil heater will not operate.

3.6Control wiring cables between starter and power panel must be shielded with minimum rating of 600 v, 80 C. Ground shield at starter. Starter Management Module (SMM) communication cable must be separate.

3.7If optional oil pump circuit breaker is not supplied within the starter enclosure as shown, it must be located within sight of the chiller with wiring routed to suit.

3.8Voltage to terminals LL1 and LL2 comes from a control trans- former in a starter built to Carrier speci®cations. Do not connect an outside source of control power to the compressor motor starter (terminals LL1 and LL2). An outside power source will produce dangerous voltage at the line side of the starter, because sup- plying voltage at the transformer secondary terminals produces input level voltage at the transformer primary terminals.

4.0Medium voltage (over 600 volts) compressor motors have 3 ter- minal connections (lead hooks). Use suitable splice connectors and insulation for high voltage alternating current cable termi- nations (these items are not supplied by Carrier). Compressor motor starter must have nameplate stamped to conform with Carrier requirement Z-375.

4.1Power conductor rating must meet minimum unit nameplate volt- age and compressor motor RLA. (Conductor as de®ned below may be a single lead or multiple smaller ampacity leads in par- allel for the purpose of carrying the equivalent or higher current of a single larger lead.)

When (3) conductors are used:

Minimum ampacity per conductor = 1.25 × compressor RLA.

4.2When more than one conduit is used to run conductors form starter to compressor motor terminal box, an equal number of leads from each phase (conductor) must be in each conduit to prevent ex- cessive heating (e.g., conductors to motor terminals 1, 2 and 3 in one conduit, and those to 1, 2 and 3 in another.)

4.3Compressor motor power connections can be made through top, top rear, or sides of compressor motor terminal box using holes cut by contractor to suit conduit. Flexible conduit should be used for the last few feet to the terminal box for unit vibration isolation. Use of stress cones may require an oversize (special) motor ter- minal box (not supplied by Carrier).

4.4Compressor motor frame to be grounded in accordance with the National Electrical Code (NFPA-70) and applicable codes. Means for grounding compressor motor is 2 ground pads, 1 each lo- cated near each motor foot opposite the shaft end.

4.5Do not allow motor terminals to support weight of wire cables. Use cable supports and strain reliefs as required.

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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 17EX Chiller Familiarization IntroductionAbbreviations 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 Psio LIDPIC Tewac Equip GND ÐGRD General LID Operation and Menus FigPROCESSOR/SENSOR INPUT/OUTPUT Module Psio 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 SelectMenu Status Example 2 Ð STATUS02 Display ScreenExample 3 Ð STATUS03 Display Screen Menu Example 4 Ð STATUS04 Display ScreenExample 5 Ð Setpoint Display Screen ICE Build Termination Example 6 Ð Configuration Config Display ScreenECW Control Option 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 TemperatureDescription RANGE/STATUS Units Reference Point Name Example 13 Ð Maintenance MAINT03 Display ScreenExample 14 Ð Maintenance MAINT04 Display Screen 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 900 500 901 7000 1000 7001-14500 2500 Inspect WiringCheck Optional Pumpout Compressor Water Pip Recommended Motor Fastener Tightening Torques External Gear Pre-Start ChecksExternal Gear Lubrication System SOLID-STATE Starters Check StarterMechanical Starters Input the Local Occupied Schedule OCCPC01S Set Up Chiller Control CongurationInput the Design Set Points Ð To modify the set T1/P1 Full Load Points T2/P2 Change the LID Configuration if NecessarySurge Limiting or 50% Load Surge Prevention Occurs TOO Soon Occurs TOO LateIncrease P1 by Decrease P1 by Initial START-UP Charge Refrigerant into ChillerControl Test Menu Functions Tests to be Devices Tested PerformedInitial Motor START-UP Dry Run to Test Start-Up SequenceCheck Motor Rotation 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 FiltersPumpout Compressor OIL17EX Chiller Oil Specications 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 ModuleGRD Processor/Sensor Input/Output Module Psio FigStarter Management Module SMM Fig 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 101102 Ð Total Motor Weight, English lbÐ Total Motor Weight, SI kg NIH Waterbox Cover Weights Marine Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103104 Auxiliary Systems, Electrical DataRelief Valve Locations and Data 105 Compressor Fits and ClearancesMeasure 106Clearance Type Description 17FX Tabulation Ð Impeller Clearances Open-Drive Compressors107 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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