Carrier 19XL specifications Installation, Switch Options Setting Module

Page 80

Terminal block connections are provided on the options modules. All sensor inputs are ®eld wired and installed. Options module number 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 mod- ule number (Fig. 43) and to con®gure the chiller for each feature being used.

SWITCH

OPTIONS

OPTIONS

SETTING

MODULE 1

MODULE 2

S1

6

7

S2

4

2

Fig. 43 Ð Options Module

Replacing Defective Processor Modules Ð The replacement part number is printed in a small label on 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 proces- sor module (PSIO), specify complete replacement part number, 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 50.

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

INSTALLATION

1.Verify that the existing PSIO module is defective by us- ing the procedure described in the Troubleshooting Guide section, page 66, and Control Modules section, page 78. Do not select the Attach to Network Device table if the LID displays communication failure.

2.Data regarding the PSIO con®guration should have been recorded and saved. This data will have to be recon- ®gured into the LID. If this data is not available, follow the procedures described in the Set Up Chiller Control Con®guration section.

If a CCN Building Supervisor or Service Tool is present, the module con®guration should have already been uploaded into memory; then, when the new module is installed, the con®guration can be downloaded from the computer.

Any communication wires from other chillers or CCN modules should be disconnected to prevent the new PSIO module from uploading incorrect run hours into memory.

3.To install this module, ®rst record the TOTAL COM- PRESSOR STARTS and the COMPRESSOR ONTIME from the Status01 table screen on the LID.

4.Power off the controls.

5.Remove the old PSIO. DO NOT install the new PSIO at this time.

6.Turn on the control power. When the LID screen re- appears, press the MENU softkey, then press the SERVICE softkey. Enter the password, if applicable. Move the highlight bar down to the ATTACH TO NET- WORK DEVICE line. Press the SELECT softkey. Now, press the ATTACH softkey. The LID will dis-

play ``UPLOADING TABLES, PLEASE WAIT'' and then display ``COMMUNICATIONS FAILURE.'' Press

the EXIT softkey.

7.Turn the control power off.

8.Install the new PSIO module. Turn the control power back on.

9.The LID will now automatically upload the new PSIO module.

10.Access the Status01 table and move the highlight bar down to the TOTAL COMPRESSOR STARTS line. Press

the SELECT softkey. Increase the value to indicate the correct starts value recorded in Step 2. Press the ENTER softkey when you reach the correct value. Now, move the highlight bar to the COMPRESSOR ON- TIME line. Press the SELECT softkey. Increase the run hours value to the value recorded in Step 2. Press the ENTER softkey when the correct value is reached.

11.Complete the PSIO installation. Following the instruc- tions in the Start-up, Operation, and Maintenance manual, input all the proper con®gurations such as time, date, etc. Re-calibrate the motor amps and check the pres- sure transducer calibrations. PSIO installation is now complete.

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Contents Introduction Abbreviations and ExplanationsMOTOR/OIL Refrigeration Cooling Cycle Chiller FamiliarizationRefrigeration Cycle 19XL Rear View Take-Apart Rabbet Fit Connector Cooler In/Out Temperature SensorsCondenser In/Out Temperature Sensors Cooler Pressure Schrader FittingLubrication Cycle Refrigerant Motor Cooling and Oil Cooling CyclesLubrication System Starting Equipment Unit-Mounted Solid-State Starter OptionalDenitions ControlsMajor PIC Components Panel Locations PIC Component Panel19XL Controls and Sensor Locations Pressure Transducer, TypicalPower Panel with Options Control and OIL Heater Voltage Selector S1Select LID Operation and Menus FigGeneral − Example of Point Status Screen Status01 Override OperationsExample of Time Schedule Operation Screen 19XL Menu Structure 19XL Service Menu Structure 19XL Service Menu Structure Setpoint Example of Set Point ScreenDescription Range Units Reference Point Name Alarm History LID ScreensExample 1 Ð STATUS01 Display Screen Menu Status SelectExample 2 Ð STATUS02 Display Screen Example 3 Ð STATUS03 Display ScreenExample 4 Ð Setpoint Display Screen MenuExample 5 Ð Configuration Config Display Screen Example 6 Ð LEAD/LAG Configuration Display ScreenECW Control Option ICE Build TerminationExample 7 Ð SERVICE1 Display Screen Example 8 Ð SERVICE2 Display Screen Spare Alert EnableExample 9 Ð SERVICE3 Display Screen Menu ServiceExample 10 Ð Maintenance MAINT01 Display Screen Example 11 Ð Maintenance MAINT02 Display ScreenDischarge Temperature Bearing TemperatureDescription RANGE/STATUS Units Reference Point Name Example 12 Ð Maintenance MAINT03 Display ScreenExample 13 Ð Maintenance MAINT04 Display Screen PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page Lead/Lag Control ECWHgbp Hot Gas BypassPage Ice Build Control Cent CapacityPage Example of Attach to Network Device Screen To LOG onSTART-UP/SHUTDOWN/RECYCLE Sequence FigRecycle Restart Delta T Using the Optional Storage Tank and Pumpout Before Initial START-UPJob Data Required Equipment Required19XL Leak Test Procedures Page Ð HCFC-22 Pressure Ð Temperature F Ð HCFC-22 Pressure Ð Temperature CTemperature Pressure Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C Page Inspect Wiring Check Optional Pumpout Compressor Water PipCheck Starter MECHANICAL-TYPE StartersBenshaw, Inc. Solid-State Starter Power Stack BENSHAW, INC. SOLID-STATE StarterPower Up the Controls and Check the Oil Heater Set Up Chiller Control CongurationLoad Surge Prevention Occurs TOO Soon Occurs TOO Late Amps Correction Factors For 19XL Motors Volt Motor CodeCharge Refrigerant into Chiller 19XL Chiller Equalization Without PUMP- OUT UnitControl Test Menu Functions Tests to be Devices Tested PerformedRefrigerant Charges 19XL Total Refrigerant ChargeCooler SizeCheck Rotation Initial START-UPDry Run to Test Start-Up Sequence Check Oil Pressure and Compressor Stop Calibrate Motor CurrentOperating Instructions Operator DutiesTo Stop the Chiller Plant Pumpout and Refrigerant Transfer Procedures Operating the Optional Pumpout CompressorTransfer Refrigerant from Storage Tank to Chiller TstatChillers with Isolation Valves Transfer the Refrigerant from Chiller to Storage TankReturn Refrigerant to Normal Operating Conditions General MaintenanceTest After Service, Repair, or Major Leak Ð If Weekly Maintenance Guide Vane Actuator LinkageTo Change the OIL Scheduled MaintenanceCheck Safety and Operating Controls Monthly Compressor Bearing and Gear Mainten Inspect the Heat Exchanger TubesOptional Pumpout System Controls Troubleshooting Guide MAINT01 MAINT02MAINT03 MAINT04Shutdown with ON/OFF/RESET-OFF Timing OUT or Timed OUTAutorestart in Progress Recycle ShutdownNormal or AUTO.-RESTART LOW Chilled Water Normal RUN with RESET, TEMPERATURE, or Demand Compressor Jumpstart and Refrigerant ProtectionLimited Normal RUN Overrides Active AlertsOUT-OF-RANGE Sensor Failures Chiller Protect Limit Faults Protective LimitChiller Alerts Spare Sensor Alert MessagesOther PROBLEMS/MALFUNCTIONS DESCRIPTION/MALFUNCTION Probable CAUSE/REMEDYÐ Thermistor Temperature F vs Resistance/Voltage Drop Temperature Voltage Resistance DropÐ Thermistor Temperature C vs Resistance/Voltage Drop Input Options Module Control ModulesModule Address Options Module Starter Management Module SMM FigProcessor Module Psio Fig Installation Switch Options Setting ModuleTypical Benshaw, Inc. Solid-State Starter internal View Page Page Benshaw, Inc. Solid-State Starter Troubleshooting Guide Problem Probable Causes Area of CorrectionRV1 SCRHeat Exchanger Data Additional Data for Marine WaterboxesCooler CondenserWaterbox Cover Weights CoolersCondensers 1034 kPaOptional Pumpout System Electrical Data Compressor/Motor WeightsCompressor Weights Compressor Fits and Clearances Compressor Assembly Torques Description TorqueFt-lb ``ZCLR COMComm EXTPage CLR Page Chiller Power Panel, Starter Assembly Motor Wiring Schematic Chiller Power Panel, Starter Assembly Motor Wiring Schematic PMR POTGFR HPSTypical Wye-Delta Unit Mounted Starter Wiring Schematic Index Index Copyright 1996 Carrier Corporation

19XL specifications

The Carrier 19XL is a highly regarded commercial heating and cooling solution, designed to provide optimum performance and energy efficiency in various applications. This rooftop unit is engineered to meet the diverse needs of businesses, making it an ideal choice for those requiring reliable climate control in their facilities.

One of the standout features of the Carrier 19XL is its advanced cooling and heating capabilities. The unit utilizes a high-efficiency scroll compressor that ensures a quieter operation and improved reliability. The system can operate across a wide range of temperatures, making it versatile for various climates. Additionally, it offers both cooling and heating options, allowing for year-round comfort.

Energy efficiency is a focal point of the 19XL design. With an impressive Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF), this unit not only helps reduce energy costs but also supports environmental sustainability initiatives. The unit is equipped with environmentally friendly refrigerants, further contributing to lower greenhouse gas emissions.

The Carrier 19XL features a user-friendly control system, allowing for easy monitoring and management of the unit's performance. This control system is designed to maximize energy savings, offering features such as demand control ventilation and integrated economizers that facilitate the use of outdoor air for cooling, reducing reliance on mechanical systems when conditions allow.

Construction-wise, the Carrier 19XL is built to withstand tough environmental conditions. Its robust cabinet is made from galvanized steel, providing durability and protection against the elements. The design also includes insulation to minimize noise levels, creating a more comfortable indoor environment.

Maintenance is a key consideration in the design of the 19XL. The unit features accessible service ports and a simplified access panel, allowing technicians to perform routine maintenance with ease. This proactive design helps ensure the longevity of the system and minimizes downtime, keeping operations running smoothly.

In summary, the Carrier 19XL is an exceptional choice for commercial heating and cooling needs. With its energy-efficient features, advanced technology, and durable construction, it stands out as a reliable solution for businesses looking for sustainable climate control options.
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