Carrier 19XL specifications Contents

Page 3

CONTENTS (cont)

Page

Check Optional Pumpout Compressor

Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Check Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . 47

Inspect Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Carrier Comfort Network Interface . . . . . . . . . . . 48

Check Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

·MECHANICAL-TYPE STARTERS

·BENSHAW, INC. SOLID-STATE STARTER

Oil Charge

50

Power Up the Controls and

 

Check the Oil Heater

50

· SOFTWARE VERSION

 

Set Up Chiller Control Con®guration

50

Input the Design Set Points

50

Input the Local Occupied Schedule

 

(OCCPC01S)

50

Selecting Refrigerant Type

50

· TO CONFIRM REFRIGERANT TYPE

 

· TO CHANGE REFRIGERANT TYPE

 

Input Service Con®gurations . . . . . . . . . . . . . . . . 50

·PASSWORD

·INPUT TIME AND DATE

·CHANGE LID CONFIGURATION IF NECESSARY

·MODIFY CONTROLLER IDENTIFICATION IF NECESSARY

·INPUT EQUIPMENT SERVICE PARAMETERS IF NECESSARY

·MODIFY EQUIPMENT CONFIGURATION IF NECESSARY

·CHECK VOLTAGE SUPPLY

·PERFORM AN AUTOMATED CONTROL TEST

Check Optional Pumpout System

Controls and Compressor . . . . . . . . . . . . . . . . . . . 52

High Altitude Locations . . . . . . . . . . . . . . . . . . . . . 53

Charge Refrigerant Into Chiller . . . . . . . . . . . . . . . 53

·19XL CHILLER EQUALIZATION WITHOUT PUMPOUT UNIT

·19XL CHILLER EQUALIZATION WITH PUMPOUT UNIT

·TRIMMING REFRIGERANT CHARGE

INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . . . 55,56 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Manual Operation of the Guide Vanes . . . . . . . . 55 Dry Run to Test Start-Up Sequence . . . . . . . . . . 55 Check Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

·IF ROTATION IS PROPER

·IF THE MOTOR ROTATION IS NOT CLOCKWISE

·NOTES ON SOLID-STATE STARTERS

(Benshaw, Inc.)

Check Oil Pressure and Compressor Stop . . . . 56

Calibrate Motor Current . . . . . . . . . . . . . . . . . . . . . 56

To Prevent Accidental Start-Up . . . . . . . . . . . . . . 56

Check Chiller Operating Condition . . . . . . . . . . . 56

Instruct the Customer Operator . . . . . . . . . . . . . . 56

·COOLER-CONDENSER

·OPTIONAL STORAGE TANK AND PUMPOUT SYSTEM

·MOTOR COMPRESSOR ASSEMBLY

·MOTOR COMPRESSOR LUBRICATION SYSTEM

·CONTROL SYSTEM

·AUXILIARY EQUIPMENT

·DESCRIBE CHILLER CYCLES

·REVIEW MAINTENANCE

·SAFETY DEVICES AND PROCEDURES

·CHECK OPERATOR KNOWLEDGE

·REVIEW THE START-UP, OPERATION, AND MAINTENANCE MANUAL

Page

OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . 56-58 Operator Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Prepare the Chiller for Start-Up . . . . . . . . . . . . . . 56 To Start the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Check the Running System . . . . . . . . . . . . . . . . . . 56 To Stop the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . 57 After Limited Shutdown . . . . . . . . . . . . . . . . . . . . . 57 Extended Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 57 After Extended Shutdown . . . . . . . . . . . . . . . . . . . 57 Cold Weather Operation . . . . . . . . . . . . . . . . . . . . . 57 Manual Guide Vane Operation . . . . . . . . . . . . . . . 57 Refrigeration Log . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

PUMPOUT AND REFRIGERANT

TRANSFER PROCEDURES . . . . . . . . . . . . . . . . 59-61 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Operating the Optional Pumpout

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

· TO READ REFRIGERANT PRESSURES

Chillers with Pumpout Storage Tanks . . . . . . . . 59

·TRANSFER REFRIGERANT FROM STORAGE TANK TO CHILLER

·TRANSFER THE REFRIGERANT FROM CHILLER TO STORAGE TANK

Chillers with Isolation Valves . . . . . . . . . . . . . . . . 60

·TRANSFER ALL REFRIGERANT TO CHILLER CONDENSER VESSEL

·TRANSFER ALL REFRIGERANT TO CHILLER COOLER/COMPRESSOR VESSEL

·RETURN REFRIGERANT TO NORMAL OPERATING CONDITIONS

GENERAL MAINTENANCE . . . . . . . . . . . . . . . . . 61,62 Refrigerant Properties . . . . . . . . . . . . . . . . . . . . . . . 61 Adding Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Removing Refrigerant . . . . . . . . . . . . . . . . . . . . . . . 61 Adjusting the Refrigerant Charge . . . . . . . . . . . . 61 Refrigerant Leak Testing . . . . . . . . . . . . . . . . . . . . 61 Leak Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Test After Service, Repair, or Major Leak . . . . . 61

·REFRIGERANT TRACER

·TO PRESSURIZE WITH DRY NITROGEN

Repair the Leak, Retest, and Apply

Standing Vacuum Test . . . . . . . . . . . . . . . . . . . . 62

Checking Guide Vane Linkage . . . . . . . . . . . . . . . 62

·CHECKING THE AUXILIARY SWITCH ON GUIDE VANE ACTUATOR

Trim Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . 62

WEEKLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . 62

Check the Lubrication System . . . . . . . . . . . . . . . 62

SCHEDULED MAINTENANCE

63-65

Service Ontime

. . 63

Inspect the Control Center

. . 63

Check Safety and Operating Controls

 

Monthly

. . 63

Changing Oil Filter

. . 63

Oil Speci®cation

. . 63

Oil Changes

. . 63

· TO CHANGE THE OIL

 

Refrigerant Filter

. . 63

Oil Reclaim Filters

. . 63

Inspect Refrigerant Float System

. . 64

Inspect Relief Valves and Piping

. . 64

Compressor Bearing and Gear

 

Maintenance

. . 64

Inspect the Heat Exchanger Tubes

. . 64

· COOLER

 

· CONDENSER

 

3

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents Contents Abbreviations and Explanations IntroductionChiller Familiarization Refrigeration CycleMOTOR/OIL Refrigeration Cooling Cycle 19XL Rear View Cooler Pressure Schrader Fitting Take-Apart Rabbet Fit ConnectorCooler In/Out Temperature Sensors Condenser In/Out Temperature SensorsRefrigerant Motor Cooling and Oil Cooling Cycles Lubrication CycleLubrication System Unit-Mounted Solid-State Starter Optional Starting EquipmentPIC Component Panel DenitionsControls Major PIC Components Panel LocationsPressure Transducer, Typical 19XL Controls and Sensor LocationsControl and OIL Heater Voltage Selector S1 Power Panel with OptionsLID Operation and Menus Fig GeneralSelect Override Operations − Example of Point Status Screen Status01Example of Time Schedule Operation Screen 19XL Menu Structure 19XL Service Menu Structure 19XL Service Menu Structure Example of Set Point Screen SetpointMenu Status Select Description Range Units Reference Point Name Alarm HistoryLID Screens Example 1 Ð STATUS01 Display ScreenMenu Example 2 Ð STATUS02 Display ScreenExample 3 Ð STATUS03 Display Screen Example 4 Ð Setpoint Display ScreenICE Build Termination Example 5 Ð Configuration Config Display ScreenExample 6 Ð LEAD/LAG Configuration Display Screen ECW Control OptionExample 7 Ð SERVICE1 Display Screen Menu Service Example 8 Ð SERVICE2 Display ScreenSpare Alert Enable Example 9 Ð SERVICE3 Display ScreenBearing Temperature Example 10 Ð Maintenance MAINT01 Display ScreenExample 11 Ð Maintenance MAINT02 Display Screen Discharge TemperatureExample 12 Ð Maintenance MAINT03 Display Screen Example 13 Ð Maintenance MAINT04 Display ScreenDescription RANGE/STATUS Units Reference Point Name PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page Hot Gas Bypass Lead/Lag ControlECW HgbpPage Cent Capacity Ice Build ControlPage To LOG on Example of Attach to Network Device ScreenSequence Fig START-UP/SHUTDOWN/RECYCLERecycle Restart Delta T Equipment Required Using the Optional Storage Tank and PumpoutBefore Initial START-UP Job Data Required19XL Leak Test Procedures Page Ð HCFC-22 Pressure Ð Temperature C Ð HCFC-22 Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature F Ð HFC-134a Pressure Ð Temperature CTemperature Pressure Page Check Optional Pumpout Compressor Water Pip Inspect WiringMECHANICAL-TYPE Starters Check StarterBENSHAW, INC. SOLID-STATE Starter Benshaw, Inc. Solid-State Starter Power StackSet Up Chiller Control Conguration Power Up the Controls and Check the Oil HeaterLoad Surge Prevention Occurs TOO Soon Occurs TOO Late Volt Motor Code Amps Correction Factors For 19XL MotorsTests to be Devices Tested Performed Charge Refrigerant into Chiller19XL Chiller Equalization Without PUMP- OUT Unit Control Test Menu FunctionsSize Refrigerant Charges19XL Total Refrigerant Charge CoolerInitial START-UP Dry Run to Test Start-Up SequenceCheck Rotation Operator Duties Check Oil Pressure and Compressor StopCalibrate Motor Current Operating InstructionsTo Stop the Chiller Plant Tstat Pumpout and Refrigerant Transfer ProceduresOperating the Optional Pumpout Compressor Transfer Refrigerant from Storage Tank to ChillerTransfer the Refrigerant from Chiller to Storage Tank Chillers with Isolation ValvesGeneral Maintenance Test After Service, Repair, or Major Leak Ð IfReturn Refrigerant to Normal Operating Conditions Guide Vane Actuator Linkage Weekly MaintenanceScheduled Maintenance Check Safety and Operating Controls MonthlyTo Change the OIL Inspect the Heat Exchanger Tubes Compressor Bearing and Gear MaintenOptional Pumpout System Controls Troubleshooting Guide MAINT04 MAINT01MAINT02 MAINT03Timing OUT or Timed OUT Shutdown with ON/OFF/RESET-OFFRecycle Shutdown Normal or AUTO.-RESTARTAutorestart in Progress LOW Chilled Water Compressor Jumpstart and Refrigerant Protection Normal RUN with RESET, TEMPERATURE, or DemandNormal RUN Overrides Active Alerts OUT-OF-RANGE Sensor FailuresLimited Protective Limit Chiller Protect Limit FaultsSpare Sensor Alert Messages Chiller AlertsDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Other PROBLEMS/MALFUNCTIONSTemperature Voltage Resistance Drop Ð Thermistor Temperature F vs Resistance/Voltage DropÐ Thermistor Temperature C vs Resistance/Voltage Drop Control Modules Module AddressInput Options Module Starter Management Module SMM Fig Processor Module Psio FigOptions Module Switch Options Setting Module InstallationTypical Benshaw, Inc. Solid-State Starter internal View Page Page SCR Benshaw, Inc. Solid-State Starter Troubleshooting GuideProblem Probable Causes Area of Correction RV1Condenser Heat Exchanger DataAdditional Data for Marine Waterboxes Cooler1034 kPa Waterbox Cover WeightsCoolers CondensersCompressor/Motor Weights Compressor WeightsOptional Pumpout System Electrical Data Compressor Fits and Clearances ``Z Compressor Assembly TorquesDescription Torque Ft-lbEXT CLRCOM CommPage CLR Page Chiller Power Panel, Starter Assembly Motor Wiring Schematic Chiller Power Panel, Starter Assembly Motor Wiring Schematic HPS PMRPOT GFRTypical 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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