Carrier 17EX Four-In/Two-Out Module Fig, Installation of NEW Psio Module, Options Module

Page 98

Options Modules (8-Input) Ð The options modules are optional additions to the PIC, and are used to add tem- perature reset inputs, spare sensor inputs, and demand limit inputs. Each option module contains 8 inputs, each input meant for a speci®c duty. See the wiring diagram for exact module wire terminations. Inputs for each of the options modules available include the following:

OPTIONS MODULE 1

4 to 20 mA Auto. Demand Reset

4 to 20 mA Auto. Chilled Water Reset Common Chilled Water Supply Temperature Common Chilled Water Return Temperature Remote Temperature Reset Sensor

Spare Temperature 1

Spare Temperature 2

Spare Temperature 3

OPTIONS MODULE 2

4 to 20 mA Spare 1

4 to 20 mA Spare 2 Spare Temperature 4 Spare Temperature 5 Spare Temperature 6 Spare Temperature 7 Spare Temperature 8 Spare Temperature 9

Terminal block connections are provided on the options modules. All sensor inputs are ®eld wired and installed. Options module 1 can be factory or ®eld-installed. Options module 2 is shipped separately and must be ®eld installed. For installation, refer to the unit or ®eld wiring diagrams. Be sure to address the module for the proper module number (Fig. 54) and to con®gure the chiller for each feature being used.

SWITCH SETTING

OPTIONS MODULE 1

OPTIONS MODULE 2

S1

6

7

S2

4

2

Fig. 54 Ð Options Module

Four-In/Two-Out Module (Fig. 55)

INPUTS Ð The four analog inputs each have 3 terminals and are con®gurable by movable on-board jumpers as ther- mistor (T), 4 to 20 mA (C), or 0 to 10 vdc (V)

con®gurations. The inputs monitor the gear oil temperature and pressure. Input AI#2 should be factory-set with the jumper on (T). Inputs AI#3, and AI#4 should be factory set on (V).

OUTPUTS Ð The two analog outputs are each con®gurable by on-board jumpers as 0 to 10 vdc (maximum current: 10 mA) or 4 to 20 mA (maximum load: 600 ohms) outputs. The outputs control the relay that activates the gear oil pump starter. Outputs AO#1 and AO#2 should be factory set with the jumper on (V).

This module has a ®eld-con®gurable DIP (dual in-line pack- age) switch to designate its address. It should be factory set with the following switches open: 1, 2, 3, 4, 6, and 8. Switches 5 and 7 should be closed.

Note the SIO bus wiring for this module. Unlike the stand- ard PIC modules, Pin 2 is negative and Pin 3 is the ground (or common). See Fig. 51.

Replacing Defective Processor Modules Ð The replacement part number is printed on a small label on the front of the PSIO module. The model and serial numbers are printed on the unit nameplate located on an exterior corner post. The proper software is factory-installed by Carrier in the replacement module. When ordering a replacement pro- cessor module (PSIO), specify complete replacement part num- ber, full unit model number, and serial number. This new unit requires recon®guration to the original chiller data by the installer. Follow the procedures described in the Set Up Chiller Control Con®guration section on page 54. Electrical shock can cause personal injury. Disconnect all electrical power before servicing.

Electrical shock can cause personal injury. Disconnect all electrical power before servicing.

INSTALLATION OF NEW PSIO MODULE

1.Verify that the existing PSIO module is defective by us- ing the procedure described in the Notes on Module Op- eration section, page 96, and the Control Modules sec- tion, page 96. Do not access the ATTACH TO NETWORK DEVICE screen if the LID displays a communication failure.

2.Data regarding the PSIO con®guration should have been recorded and saved. This data must be recon®gured into the LID. If this data is not available, follow the proce- dures described in the Set Up Chiller Control Con®gu- ration section, page 54. Record the TOTAL COMPRES- SOR STARTS and the COMPRESSOR ONTIME from the STATUS01 table on the LID.

If a CCN Building Supervisor or Service Tool is present, the module con®guration should have already been up- loaded into memory; then, when the new module is in- stalled, the con®guration can be downloaded from the computer (if the software version is the same).

Any communication wires from other chillers or CCN modules must be disconnected.

3.Check that all power to the unit is off. Carefully dis- connect all wires from the defective module by unplug- ging the 6 connectors. It is not necessary to remove any of the individual wires from the connectors.

4.Remove the defective PSIO by removing its mounting screw with a long-shaft Phillips screwdriver and remov- ing the module from the control box. Save the screw for later use. The green ground wire is held in place with the module mounting screw.

5.Package the defective module in the carton of the new module for return to Carrier.

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Coupling Maintenance Motor Maintenance Piping Check Relief Devices Inspect WiringOCCPC01S Input Service Congurations Inspect Water PipingContents 17EX Chiller Familiarization IntroductionAbbreviations Performance CertifiedTypical 17EX Chiller Components OIL Cooling Cycle Lubrication CycleStarters Refrigeration, Cycle17EX Compressor Lubrication Cycle Controls DenitionsPIC Component Panel Location Temperature Sensors See Fig Pressure TransducersMajor PIC Components Panel Locations 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 YES or no , on or OFF , etc. to select the desired state Override OperationsDefault Screen 17EX LID Menu StructureEquipment Configuration Service TableAlarm History Control TestHgbp Ð Hot Gas Bypass CCNCarrier Comfort Network LIDChws SetpointChwr HgbpExample 1 Ð STATUS01 Display Screen Description Range Units Reference Point Name Alarm HistoryLID Display Data 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 Example 7 Ð LEAD/LAG Configuration Display Screen LAG =2, Standby =3Example 8 Ð SERVICE1 Display Screen Example 10 Ð SERVICE3 Display Screen Example 9 Ð SERVICE2 Display ScreenSpare Alert Enable Menu ServiceDischarge Temperature Example 11 Ð Maintenance MAINT01 Display ScreenExample 12 Ð Maintenance MAINT02 Display Screen 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 To Access the Service Screens Example of Holiday Period ScreenSTART-UP/SHUTDOWN Recycle Sequence FigPage Equipment Required Before Initial START-UPJob Data Required MotorPage 17EX Leak Test Procedures Temperature F Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C Temperature CDehydration Cold Trap 900 500 901 7000 1000 7001-14500 2500 Inspect WiringCheck Optional Pumpout Compressor Water Pip External Gear Pre-Start Checks Recommended Motor Fastener Tightening TorquesExternal 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 Control Test Menu Functions Charge Refrigerant into ChillerInitial START-UP 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 To Prevent Accidental Start-Up Ð The PIC can be Calibrate Motor Current Demand SettingCheck Oil Pressure and Compressor Stop General RecommendationsStarting the Chiller Operating InstructionsOperator Duties 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 DowelingCheck Safety and Operating Controls Monthly Weekly MaintenanceScheduled Maintenance Changing the Oil FiltersPumpout Compressor OIL17EX Chiller Oil Specications Typical Float Valve Arrangement Sleeve Bearings Page Motor Riggings Inspect the Heat Exchanger Tubes Troubleshooting Guide Controls for Optional Pumpout CompressorPage MAINT03 MAINT01MAINT02 MAINT04Oilt 1CR AUXOilpd PICStarts Limit Exceeded Autorestart in ProgressPotential FREEZE-UP FaultOperation Failure to StopRunning Ð Temp Control Running Ð Demand LimitedChiller Protect Limit Faults Alert Sensor Fault AlertLOW OIL Pressure Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Possible Cause Ð Item NO.s External Gear Troubleshooting GuideProblem 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 Address Module SwitchControl Modules Input Options ModuleGRD Processor/Sensor Input/Output Module Psio FigStarter Management Module SMM Fig Four-In/Two-Out Module Fig Installation of NEW Psio ModuleSwitch Setting Options Module Options ModulePhysical Data and Wiring Schematics 4-In/2-Out ModuleCondenser Total Weight Condenser Charge Additional Cooler WeightsWeight Vessel SIZE² 100Drive Component Weights Additional Condenser WeightsCompressor Weight and Elbow Weight 101102 Ð Total Motor Weight, English lbÐ Total Motor Weight, SI kg Approximate Refrigerant HCFC-134a Charge Marine Waterbox Cover WeightsNIH Waterbox Cover Weights 103104 Auxiliary Systems, Electrical DataRelief Valve Locations and Data Compressor Fits and Clearances 105Measure 106Clearance Type Description 17FX Tabulation Ð Impeller Clearances Open-Drive Compressors107 108 Press 109Temp Tewac110 111 112 113 GeneralT1-T4 114GND Ð Ground 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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