Carrier XRV, 19XR Major PIC II Components Panel Locations, PIC II Component Panel Location

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The PIC II can interface with the Carrier Comfort Network (CCN) if desired. It can communicate with other PIC I or PIC II equipped chillers and other CCN devices.

The PIC II consists of 3 modules housed inside 3 major components. The component names and corresponding control voltages are listed below (also see Table 1):

•control panel

—all extra low-voltage wiring (24 v or less)

•power panel

—230 or 115 v control voltage (per job requirement)

—up to 600 v for oil pump power

•starter cabinet

—chiller power wiring (per job requirement)

Table 1 — Major PIC II Components and

Panel Locations*

PIC II COMPONENT

PANEL LOCATION

Chiller Visual Controller (CVC/ICVC) and

Control Panel

Display

 

Integrated Starter Module (ISM)

Starter Cabinet

Chiller Control Module (CCM)

Control Panel

Oil Heater Contactor (1C)

Power Panel

Oil Pump Contactor (2C)

Power Panel

Hot Gas Bypass Relay (3C) (Optional)

Power Panel

Control Transformers (T1, T2)

Power Panel

Temperature Sensors

See Fig. 9.

Pressure Transducers

See Fig. 9.

*See Fig. 8-13.

 

CHILLER VISUAL CONTROLLER (CVC) — The CVC is the “brain” of the PIC II. This module contains all the operating software needed to control the chiller. The CVC is mounted to the control panel (Fig. 12) and is the input center for all local chiller set points, schedules, configurable functions, and op- tions. The CVC has a stop button, an alarm light, four buttons for logic inputs, and a backlight display. The backlight will au- tomatically turn off after 15 minutes of non-use. The functions of the four buttons or “softkeys” are menu driven and are shown on the display directly above the softkeys.

The viewing angle of the CVC can be adjusted for optimum viewing. Remove the 2 bolts connecting the control panel to the brackets attached to the cooler. Place them in one of the holes to pivot the control panel forward to backward to change the viewing angle. See Fig. 12. To change the contrast of the display, access the adjustment on the back of the CVC. See Fig. 12.

INTERNATIONAL CHILLER VISUAL CONTROLLER (ICVC) — Incorporates all of the functions and operating soft- ware of the CVC with the added feature of 4 factory pro- grammed languages:

English (default) Chinese Japanese Korean

NOTE: Pressing any one of the four softkey buttons will acti- vate the backlight display without implementing a softkey function.

INTEGRATED STARTER MODULE (ISM) — This mod- ule is located in the starter cabinet. This module initiates com- mands from the CVC/ICVC for starter functions such as start- ing and stopping the compressor, condenser, chilled water pumps, tower fan, spare alarm contacts, and the shunt trip. The ISM monitors starter inputs such as line voltage, motor current,

ground fault, remote start contact, spare safety, condenser high pressure, oil pump interlock, starter 1M, and run contacts. The ISM contains logic capable of safety shutdown. It shuts down the chiller if communications with the CVC/ICVC are lost. The ISM can also act as the interface for PIC II to the VFD controller.

CHILLER CONTROL MODULE (CCM) — This module is located in the control panel. The CCM provides the input and outputs necessary to control the chiller. This module monitors refrigerant pressure, entering and leaving water temperatures, and outputs control for the guide vane actuator, oil heaters, and oil pump. The CCM is the connection point for optional de- mand limit, chilled water reset, remote temperature reset, re- frigerant leak sensor and motor kilowatt output.

OIL HEATER CONTACTOR (1C) — This contactor is lo- cated in the power panel (Fig. 13) and operates the heater at either 115 or 230 v. It is controlled by the PIC II to maintain oil temperature during chiller shutdown. The XR4 with split ring diffuser has a line voltage oil heater. Refer to the control panel wiring schematic.

OIL PUMP CONTACTOR (2C) — This contactor is located in the power panel. It operates all 200 to 575-v oil pumps. The PIC II energizes the contactor to turn on the oil pump as necessary.

HOT GAS BYPASS CONTACTOR RELAY (3C) (Optional) — This relay, located in the power panel, controls the opening of the hot gas bypass valve. The PIC II energizes the relay during low load, high lift conditions.

CONTROL TRANSFORMERS (T1, T2) — These transform- ers convert incoming control voltage to 24 vac power for the 3 power panel contactor relays, CCM, and CVC/ICVC.

OPTIONAL TRANSFORMER (T3) — This transformer pro- vides control power to Dataport™/DataLINK™ modules.

Fig. 10 — Control Sensors (Temperature)

Fig. 11 — Control Sensors

(Pressure Transducers, Typical)

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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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