Carrier XRV, 19XR specifications Scheduled Maintenance, Check Safety and Operating Controls Monthly

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SCHEDULED MAINTENANCE

Establish a regular maintenance schedule based on your ac- tual chiller requirements such as chiller load, run hours, and water quality. The time intervals listed in this section are offered as guides to service only.

Service Ontime — The CVC/ICVC will display a SER- VICE ONTIME value on the MAINSTAT screen. This value should be reset to zero by the service person or the operator each time major service work is completed so that the time between service can be viewed and tracked.

Inspect the Control Panel — Maintenance consists of general cleaning and tightening of connections. Vacuum the cabinet to eliminate dust build-up. If the chiller control mal- functions, refer to the Troubleshooting Guide section for con- trol checks and adjustments.

Ensure power to the control center is off when cleaning and tightening connections inside the control panel.

Check Safety and Operating Controls Monthly —

To ensure chiller protection, the automated Control Test should be performed at least once per month. See Table 3 for safety control settings. See Table 9 for Control Test functions.

Changing Oil Filter — Change the oil filter on a yearly basis or when the chiller is opened for repairs. The 19XR has an isolatable oil filter so that the filter may be changed with the refrigerant remaining in the chiller. Use the following procedure:

1.Ensure the compressor is off and the disconnect for the compressor is open.

2.Disconnect the power to the oil pump.

3.Close the oil filter isolation valves located behind power panel on top of oil pump assembly.

4.Connect an oil charging hose from the oil charging valve (Fig. 2) and place the other end in a clean container suit- able for used oil. The oil drained from the filter housing should be used as an oil sample and sent to a laboratory for proper analysis. Do not contaminate this sample.

5.Slowly open the charging valve to drain the oil from the housing.

The oil filter housing is at a high pressure. Relieve this pressure slowly.

6.Once all oil has been drained, place some rags or absor- bent material under the oil filter housing to catch any drips once the filter is opened. Remove the 4 bolts from the end of the filter housing and remove the filter cover.

7.Remove the filter retainer by unscrewing the retainer nut. The filter may now be removed and disposed of properly.

8.Replace the old filter with a new filter. Install the filter re- tainer and tighten down the retainer nut. Install the filter cover and tighten the 4 bolts.

9.Evacuate the filter housing by placing a vacuum pump on the charging valve. Follow the normal evacuation proce- dures. Shut the charging valve when done and reconnect the valve so that new oil can be pumped into the filter housing. Fill with the same amount that was removed; then close the charging valve.

10.Remove the hose from the charging valve, open the isola- tion valves to the filter housing, and turn on the power to the pump and the motor.

Oil Specification — If oil is added, it must meet the fol- lowing Carrier specifications:

Oil Type for units using R-134a . . . . . . . . . . . . . . . . . . Inhibited polyolester-based synthetic compressor oil formatted for use with HFC, gear-driven, hermetic compressors.

ISO Viscosity Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

The polyolester-based oil (P/N: PP23BZ103) may be ordered from your local Carrier representative.

Oil Changes — Carrier recommends changing the oil af- ter the first year of operation and every five years thereafter as a minimum in addition to a yearly oil analysis. However, if a continuous oil monitoring system is functioning and a yearly oil analysis is performed, the time between oil changes can be extended.

TO CHANGE THE OIL

1.Transfer the refrigerant into the chiller condenser vessel (for isolatable vessels) or to a pumpout storage tank.

2.Mark the existing oil level.

3.Open the control and oil heater circuit breaker.

4.When the chiller pressure is 5 psig (34 kPa) or less, drain the oil reservoir by opening the oil charging valve (Fig. 2). Slowly open the valve against refrigerant pressure.

5.Change the oil filter at this time. See Changing Oil Filter section.

6.Change the refrigerant filter at this time, see the next sec- tion, Refrigerant Filter.

7.Charge the chiller with oil. Charge until the oil level is equal to the oil level marked in Step 2. Turn on the power to the oil heater and let the PIC II warm it up to at least 140 F (60 C). Operate the oil pump manually, using the Control Test function, for 2 minutes. For shutdown condi- tions, the oil level should be full in the lower sight glass.

If the oil level is above 1/2 full in the upper sight glass, re- move the excess oil. The oil level should now be equal to the amount shown in Step 2.

Refrigerant Filter — A refrigerant filter/drier, located on the refrigerant cooling line to the motor, should be changed once a year or more often if filter condition indicates a need for more frequent replacement. Change the filter by closing the fil- ter isolation valves (Fig. 4) and slowly opening the flare fittings with a wrench and back-up wrench to relieve the pressure. A moisture indicator sight glass is located beyond this filter to in- dicate the volume and moisture in the refrigerant. If the mois- ture indicator indicates moisture, locate the source of water im- mediately by performing a thorough leak check.

Oil Reclaim Filter — The oil reclaim system has a strainer on the eductor suction line, a strainer on the discharge pressure line, and a filter on the cooler scavenging line. Replace the filter once per year or more often if filter condition indicates a need for more frequent replacement. Change the fil- ter by closing the filter isolation valves and slowly opening the flare fitting with a wrench and back-up wrench to relieve the pressure. Change the strainers once every 5 years or whenever refrigerant is evacuated from the cooler.

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents Contents Abbreviations and Explanations Introduction19XR Identification Chiller FamiliarizationTypical 19XR Components Motor and Lubricating OIL Cooling Cycle Refrigeration CycleLubrication Cycle VFD Cooling CycleUnit-Mounted Solid-State Starter Optional Starting EquipmentControls Unit-Mounted Wye-Delta Starter OptionalDefinitions Variable Frequency Drive VFD 19XR Controls and Sensor Locations PIC II Component Panel Location Major PIC II Components Panel LocationsControl Panel CVC/ICVC Operation and Menus Fig Example of Status Screen 19XR Chiller Display Menu Structure CVC/ICVC 19XR Service Menu Structure Time and Date Example of Time Schedule Operation Screen Example of Set Point Screen CVC/ICVC Display Data Example 1 Chiller Display Default ScreenDescription Status Units Point Example 2 Maintstat Display ScreenExample 3 Startup Display Screen Startup Description Status Units PointExample 5 Heatex Display Screen Example 4 Compress Display ScreenExample 7 Ismstat Display Screen Example 6 Power Display ScreenExample 8 CVC/ICVCPSWD Display Screen Menu Setpoint Select Description Status Units Point DefaultCVC Icvc Description Status Units Point Example 9 Setpoint Display ScreenControl Algorithm Status Override Description Units Point Example 11 Override Display ScreenExample 12 Llmaint Display Screen Example 14 Wsmdefme Display Screen Example 13 Ismhist Display ScreenControl Algorithm Status Wsmdefme Description Units Point Ismconf Description Status Units Point Default ISM Starter Config DataExample 15 Netopt Display Screen Example 16 Ismconf Display ScreenSpare ALERT/ALARM Enable Example 18 SETUP1 Display ScreenExample 17 Options Display Screen Example 20 Leadlag Display Screen Example 19 SETUP2 Display ScreenLAG=2, STANDBY=3 Reset Type Description Status Units Point DefaultExample 21 Rampdem Display Screen Example 22 Tempctl Display ScreenSurge Prevention Mode occurs when Active Delta T Normal Control mode occurs when Active Delta TMode IGV VFD PIC II System FunctionsPage Protective Safety Limits and Control Settings Page Capacity Overrides Evaporator Freeze Protection Icvc only a Page Head Pressure Reference Output Surge Protection Fixed Speed ChillerPage Page Point Example of Attach to Network Device Screen Example of Holiday Period Screen START-UP/SHUTDOWN Default CVC/ICVC screen, press the MenuRecycle Sequence Fig Local Start-Up Local start-up or a manual start-up isEntering Condenser Water temperature plus 3 F -1.6C Job Data Required Before Initial START-UPEquipment Required 19XR Leak Test Procedures Page Page HFC-134a Pressure Temperature C HFC-134a Pressure Temperature FTemperature Pressure Perform dehydration as follows Inspect WiringManufacturer Cable no Check StarterWhite G Software Configuration Parameter Benshaw RediStart Micro Menu Items Verify VFD Configuration and Change Parameters if Necessary Description Setting VFD Title Setting ParameterDescription Settings Press Menu Press Status Press Compress Press Select Press Status Press Compress Press SelectLoad Surge Prevention Occurs TOO Soon Occurs TOO Late Estimated Minimum Load ConditionsCCM Temperature Thermistors Control Test Menu Functions Charge Refrigerant into ChillerTests to be Devices Tested Performed Refrigerant HFC-134a Charge Initial START-UPCheck Motor Rotation Dry Run to Test Start-Up SequenceCheck Oil Pressure and Compressor Stop Operator Duties Operating InstructionsTo Start the Chiller To Stop the ChillerOperating the Optional Pumpout Unit Pumpout and Refrigerant Transfer ProceduresTime Date Cooler Condenser CompressorBearing FLAValve Condition Turn off pumpout condenser waterChillers with Isolation Valves Test After Service, Repair, or Major Leak If General MaintenanceGuide Vane Actuator Linkage Weekly MaintenanceCheck Safety and Operating Controls Monthly Scheduled MaintenanceInspect the Heat Exchanger Tubes and Flow Devices Compressor Bearing and Gear MaintenanceOptional Pumpout System Controls Ordering Replacement Chiller Parts WhenChecking Pressure Transducers Troubleshooting GuideLlmaint HeatexOccdefcm Shutdown in Progress Terminate Pumpdown ModeICE Build Ready to StartAlert PrestartAutorestart in Progress Running Temp ControlRUN Capacity FaultLimited SensorFailure to ProtectiveStart StopCommunication LossPotential FREEZE-UPLOW OIL Pressure Sensor AlertAutorestart PendingRecycle Pressure AlertOption Sensor DiffuserDrop Thermistor Temperature F vs. Resistance/Voltage DropTemperature PIC Resistance Thermistor Temperature C vs. Resistance/Voltage DropControl Modules Power is connected to Plug J1 on each moduleIntegrated Starter Module Fig Chiller Control Module CCM FigReplacing Defective Processor Modules Integratedstartermodule Checked Measure SCR Pairs Recorded Being BetweenNumber of Tubes English Code Heat Exchanger Data EnglishNumber of Tubes Code Heat Exchanger Data SI19XR Additional Data for Marine Waterboxes Compressor WeightsEnglish Motor 19XR Motor Weights Standard and High Efficiency Motors19XR Waterbox Cover Weights English lb 19XR Waterbox Cover Weights SI kg Optional Pumpout System Electrical Data Additional Miscellaneous WeightsMotor Voltage Code Description Torque Compressor Assembly TorquesCompressor Code View B High Speed Shaft 19XR Compressor ClearancesAllen-Bradley Wye-Delta Unit-Mounted Starter 100101 ISM 102Temp 103104 105 106 107 Power Panel Wiring Schematic108 Cutler-Hammer Wye Delta Unit Mounted Starter Sizes 3-5DP109 Cutler-Hammer Wye Delta Unit Mounted Starter Size 6DPSeparate Metering Option Ground Fault Phase Current Option111 AUX 112FU Fuse 113114 VFD 115116 Typical Variable Frequency Drive VFD Wiring Schematic117 118 119 120 121 122 Index Index JOB Data Required Remove and use for job fileCL-2 Inspect Wiring and Record Electrical Data Ratings10 to 40 to 10060.0 15 toCL-4 460 200 to105 to 115 85 to50 to 30 to20 to Psi CL-690 to 150 to125 125 to90 to 100 65 toAmp 250 CL-8 CL-9 25 toCL-10 50 to 1450200 0000 to0000 to 0200 CL-11004 To H.022 Job Sheet 60 for 60 Hz and 50 for 50 Hz 002 Power Module Dependent Selected motor 100% amps028 10 to Job Sheet 60 for 60 Hz and 50 for 50 Hz 000 100 to Selected line voltageCL-13 CL-14 CCN Local ResetPage Incurring obligations
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19XR, XRV specifications

The Carrier 19XR and 19XRV chillers are sophisticated cooling solutions that represent the forefront of HVAC technology. Designed for large commercial and industrial applications, these chillers provide exceptional performance, energy efficiency, and reliability, making them ideal for a variety of environments ranging from hospitals to manufacturing facilities.

One of the most significant features of the Carrier 19XR and 19XRV chillers is their advanced scroll compressor technology. These units employ a tandem scroll design that enhances efficiency while minimizing operational noise. This makes them ideal for urban environments where noise restrictions may be in place. Moreover, the compressors are equipped with variable speed drive options in the 19XRV model, which allows for greater energy savings by adjusting cooling output based on real-time demand.

In addition to their advanced compressors, the 19XR and 19XRV units incorporate the Carrier GreenChoice refrigerant, which has a lower global warming potential compared to traditional refrigerants. This innovative choice not only meets regulatory requirements but also contributes to sustainability goals, making these chillers a responsible choice for environmentally conscious organizations.

The units are engineered with a robust heat exchanger design, which enhances heat transfer efficiency and overall system performance. This ensures optimal operation even in extreme conditions. They feature a microprocessor-based control system that allows for precise monitoring and control of the chiller’s performance, enabling operators to make real-time adjustments to maximize energy efficiency.

The Carrier 19XR and 19XRV chillers also prioritize serviceability. The design incorporates easy access to key components, simplifying maintenance procedures and reducing downtime. This focus on maintainability extends the lifespan of the equipment, leading to lower lifecycle costs.

In terms of connectivity, these chillers are equipped with advanced Building Management System (BMS) integration capabilities. This allows for seamless monitoring and control of the chillers using a centralized platform, facilitating energy management and operational optimization.

Overall, the Carrier 19XR and 19XRV chillers stand out in the market for their blend of cutting-edge technology, energy efficiency, and user-friendly features. They are engineered to meet the demanding needs of modern commercial and industrial applications, making them a preferred choice for facility managers seeking reliable cooling solutions.
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