Carrier XRV, 19XR specifications Turn off pumpout condenser water, Valve Condition

Page 69

LEGEND

C— Contactor

FU — Fuse, 3 Amps

HP — High-Pressure Cutout

OL — Compressor Overload T’STAT — Internal Thermostat

Compressor Terminal

Contactor Terminal

Overload Terminal

Pumpout Unit Terminal

*Bimetal thermal protector imbedded in motor winding.

Fig. 35 — 19XR Pumpout Unit Wiring Schematic

OIL RETURN

LINE

CONNECTION

CONDENSER

REFRIGERANT

WATER

INLET VALVE

CONNECTIONS

 

Fig. 36 — Optional Pumpout Unit

Chillers with Storage Tanks — If the chiller has iso- lation valves, leave them open for the following procedures. The letter “C” describes a closed valve. See Fig. 17, 18, 29, and 30.

TRANSFER REFRIGERANT FROM PUMPOUT STOR- AGE TANK TO CHILLER

1.Equalize refrigerant pressure.

a.Use the PIC II terminate lockout function on the PUMPDOWN LOCKOUT screen, accessed from

the CONTROL TEST table to turn on the water pumps and monitor pressures.

If the chilled water and condenser water pumps are not controlled by the PIC II, these pumps must be started and stopped manually at the appropriate times during the refrig- erant transfer procedure.

b.Close pumpout unit valves 2, 4, 5, 8, and 10, and close chiller charging valve 7; open chiller isola- tion valves 11, 12, 13, and 14 (if present).

c.Open pumpout unit/storage tank valves 3 and 6, open chiller valves 1a and 1b.

 

VALVE

1a

1b

2

3

4

5

6

7

8

10

11

12

13

14

 

 

CONDITION

 

 

C

 

C

C

 

C

C

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Follow Steps d and e carefully to prevent damage from freeze-up.

d.

Slowly open valve 5 to increase chiller pressure to

 

68 psig 35 psig (141 kPa) for HFC-134a. Feed

 

refrigerant slowly to prevent freeze up.

e.

Open valve 5 fully after the pressure rises above

 

the freeze point of the refrigerant. Open liquid line

 

valves 7 and 10 until refrigerant pressure

 

equalizes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

1a

1b

2

3

4

5

 

6

 

7

8

10

11

12

13

14

 

CONDITION

 

 

C

 

C

 

 

 

 

 

C

 

 

 

 

 

2. Transfer the remaining refrigerant.

 

 

 

 

 

 

 

 

 

a.

Close valve 5 and open valve 4.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

1a

1b

2

3

4

5

 

6

 

7

8

10

11

12

13

14

 

CONDITION

 

 

C

 

 

C

 

 

 

 

C

 

 

 

 

 

b.

Turn off the chiller water pumps using the CVC/

 

ICVC (or manually, if necessary).

 

 

 

 

 

 

c.

Turn off the pumpout condenser water, and turn on

 

the pumpout compressor to push liquid out of the

 

storage tank.

 

 

 

 

 

 

 

 

 

 

 

 

 

d.

Close liquid line valve 7.

 

 

 

 

 

 

 

 

 

 

 

e.

Turn off the pumpout compressor.

 

 

 

 

 

 

f.

Close valves 3 and 4.

 

 

 

 

 

 

 

 

 

 

 

 

g.

Open valves 2 and 5.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

1a

1b

2

3

4

5

 

6

 

7

8

10

11

12

13

14

 

CONDITION

 

 

 

C

C

 

 

 

 

C

C

 

 

 

 

 

h.

Turn on the pumpout condenser water.

i.

Run the pumpout compressor until the pumpout

 

storage tank pressure reaches 5 psig (34 kPa)

 

(18 in. Hg [40 kPa absolute] if repairing the tank).

j.

Turn off the pumpout compressor.

 

 

 

 

 

 

k.

Close valves 1a, 1b, 2, 5, 6, and 10.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VALVE

1a

1b

2

3

4

5

 

6

 

7

8

10

11

12

13

14

 

CONDITION

C

C

C

C

C

C

C

C

C

C

 

 

 

 

l. Turn off pumpout condenser water.

69

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Page 68 Page 70
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 EquipmentUnit-Mounted Wye-Delta Starter Optional ControlsDefinitions 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 ScreenExample 11 Override Display Screen Control Algorithm Status Override Description Units PointExample 12 Llmaint Display Screen Example 13 Ismhist Display Screen Example 14 Wsmdefme 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 ScreenExample 18 SETUP1 Display Screen Spare ALERT/ALARM EnableExample 17 Options Display Screen Example 19 SETUP2 Display Screen Example 20 Leadlag 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 Before Initial START-UP Job Data RequiredEquipment Required 19XR Leak Test Procedures Page Page HFC-134a Pressure Temperature F HFC-134a Pressure Temperature CTemperature Pressure Perform dehydration as follows Inspect WiringCheck Starter Manufacturer Cable noWhite G Software Configuration Parameter Benshaw RediStart Micro Menu Items Verify VFD Configuration and Change Parameters if Necessary VFD Title Setting Parameter Description SettingDescription 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 Charge Refrigerant into Chiller Control Test Menu FunctionsTests to be Devices Tested Performed Refrigerant HFC-134a Charge Initial START-UPDry Run to Test Start-Up Sequence Check Motor RotationCheck 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 GuideHeatex LlmaintOccdefcm 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 moduleChiller Control Module CCM Fig Integrated Starter Module 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 Additional Miscellaneous Weights Optional Pumpout System Electrical DataMotor 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 to65 to 90 to 100Amp 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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