Carrier 17EX specifications Ecw, Entering Chilled Water

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LEGEND

DP = (Condenser psi) − (Cooler psi)

DT = (ECW) − (LCW)

ECW

Ð Entering Chilled Water

HGBP

Ð Hot Gas Bypass

LCW

Ð Leaving Chilled Water

Fig. 18 Ð 17EX Hot Gas Bypass/Surge Prevention With Default Settings (English)

LEGEND

DP = (Condenser kPa) − (Cooler kPa)

DT = (ECW) − (LCW)

ECW

Ð Entering Chilled Water

HGBP

Ð Hot Gas Bypass

LCW

Ð Leaving Chilled Water

Fig. 19 Ð 17EX Hot Gas Bypass/Surge Prevention

With Default Settings (SI)

Surge Protection Ð Compressor surge can be de- tected by the PIC based on operator con®gured settings. Surge causes amperage ¯uctuations of the compressor motor. The PIC monitors these amperage swings, and if the swing is greater than the con®gured setting (SURGE DELTA PERCENT AMPS) in one second, then one surge event has occurred. The setting is displayed and con®gured on the SERVICE1 screen. Its default setting is 25% amps.

A surge protection chiller shutdown occurs when the surge protection counter reaches 12 within an operator speci®ed time period, known as the surge time period. The surge protection count (SURGE PROTECTION COUNTS

parameter, Table 2, Example 13) can be monitored on the MAINT03 screen. The SURGE TIME PERIOD parameter is displayed and con®gured on the SERVICE1 screen. See Table 2, Example 8. It has a default of 2 minutes.

Lead/Lag Control Ð Lead/lag is a control system pro- cess that automatically starts and stops a lag or second chiller in a 2-chiller system. Refer to Fig. 15 and 16 for menu, table, and screen selection information. On chillers that have PSIO software with lead/lag capability, it is possible to use the PIC controls to perform the lead/lag function on 2 chillers. A third chiller can be added to the lead/lag system as a standby chiller to start up if the lead or lag chiller in the system has shut down during an alarm condition and additional cooling is required.

NOTE: Lead/lag parameters can be viewed and modi®ed on the LEAD/LAG CONFIGURATION screen, accessed from the EQUIPMENT CONFIGURATION table. See Table 2, Example 7. Lead/lag status during chiller operation is viewed on the MAINT04 screen, accessed from the CONTROL ALGORITHM STATUS table. See Table 2, Example 14.

Lead/Lag System Requirements:

·all chillers must have PSIO software capable of perform- ing the lead/lag function

·water pumps MUST be energized from the PIC controls

·water ¯ows should be constant

·CCN Time Schedules for all chillers must be identical

Operation Features:

·2 chiller lead/lag

·addition of a third chiller for backup

·manual rotation of lead chiller

·load balancing if con®gured

·staggered restart of the chillers after a power failure

·chillers may be piped in parallel or in series chilled water ¯ow

COMMON POINT SENSOR INSTALLATION Ð Lead/ lag operation does not require a common chilled water point sensor. Common point sensors can be added to the 8-input option module, if desired. Refer to the certi®ed drawings for termination of sensor leads.

NOTE: If the common point sensor option is chosen on a chilled water system, each chiller should have its own 8-input option module and common point sensor installed. A chiller uses its own common point sensor for control when that chiller is designated as the lead chiller. The PIC cannot read the value of common point sensors installed on other chillers in the chilled water system.

When installing chillers in series, use a common point sen- sor. If a common point sensor is not used, the leaving chilled water sensor of the upstream chiller must be moved into the leaving chilled water pipe of the downstream chiller.

If return chilled water control is required on chillers piped in series, the common point return chilled water sensor should be installed. If this sensor is not installed, the return chilled water sensor of the downstream chiller must be relocated to the return chilled water pipe of the upstream chiller.

To properly control the common supply point temperature sensor when chillers are piped in parallel, the water ¯ow through the shutdown chiller(s) must be isolated so there is no water bypass around the operating chiller. The common point sen- sor option must not be used if water bypass around the op- erating chiller is occurring.

CHILLER COMMUNICATION WIRING Ð Refer to the chiller Installation Instructions and the Carrier Comfort Net- work Interface section on page 53 of this manual for infor- mation on chiller communication wiring.

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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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