Carrier 19XL specifications Clr, Comm, Ext, Int, Rbpl Ð

Page 90

BRG Ð Bearing

CÐ Contact

CB

Ð Circuit Breaker

CLR

Ð Clear

COM

Ð Common

COMM

Ð Communication Connector

EXT

Ð External

G.V.

Ð Guide Vane

HGBP

Ð Hot Gas Bypass

INT

Ð Internal

JÐ Module Connector

KÐ Relay Designation

LID

Ð Local Interface Device

MA

Ð Milliampere

NC

Ð Normally Closed

LEGEND

NO

Ð Normally Open

PSIO

Ð

Processor Sensor Input/

RBPL Ð

Output Module

Relay Board Plug

SÐ Compressor Motor Start Contactor SMM Ð Starter Management Module SOL Ð Solenoid

TB

Ð Terminal Board

 

Carrier Factory Wiring

 

Optional (Factory or Field-Installed)

 

Wiring

 

Thermistor

 

t*

Fig. 48 Ð Electronic PIC Controls Wiring Schematic

(For 19XL with No Backlight or with Fluorescent Backlight)

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Contents Introduction Abbreviations and ExplanationsChiller Familiarization Refrigeration CycleMOTOR/OIL Refrigeration Cooling Cycle 19XL Rear View Condenser In/Out Temperature Sensors Take-Apart Rabbet Fit ConnectorCooler In/Out Temperature Sensors Cooler Pressure Schrader FittingLubrication Cycle Refrigerant Motor Cooling and Oil Cooling CyclesLubrication System Starting Equipment Unit-Mounted Solid-State Starter OptionalMajor PIC Components Panel Locations DenitionsControls PIC Component Panel19XL Controls and Sensor Locations Pressure Transducer, TypicalPower Panel with Options Control and OIL Heater Voltage Selector S1LID Operation and Menus Fig GeneralSelect − 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 ScreenExample 1 Ð STATUS01 Display Screen Description Range Units Reference Point Name Alarm HistoryLID Screens Menu Status SelectExample 4 Ð Setpoint Display Screen Example 2 Ð STATUS02 Display ScreenExample 3 Ð STATUS03 Display Screen MenuECW Control Option Example 5 Ð Configuration Config Display ScreenExample 6 Ð LEAD/LAG Configuration Display Screen ICE Build TerminationExample 7 Ð SERVICE1 Display Screen Example 9 Ð SERVICE3 Display Screen Example 8 Ð SERVICE2 Display ScreenSpare Alert Enable Menu ServiceDischarge Temperature Example 10 Ð Maintenance MAINT01 Display ScreenExample 11 Ð Maintenance MAINT02 Display Screen Bearing 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 Hgbp Lead/Lag ControlECW 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 Job Data Required Using the Optional Storage Tank and PumpoutBefore Initial START-UP Equipment Required19XL Leak Test Procedures Page Ð HCFC-22 Pressure Ð Temperature F Ð HCFC-22 Pressure Ð Temperature CÐ HFC-134a Pressure Ð Temperature F Ð HFC-134a Pressure Ð Temperature CTemperature Pressure 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 CodeControl Test Menu Functions Charge Refrigerant into Chiller19XL Chiller Equalization Without PUMP- OUT Unit Tests to be Devices Tested PerformedCooler Refrigerant Charges19XL Total Refrigerant Charge SizeInitial START-UP Dry Run to Test Start-Up SequenceCheck Rotation Operating Instructions Check Oil Pressure and Compressor StopCalibrate Motor Current Operator DutiesTo Stop the Chiller Plant Transfer Refrigerant from Storage Tank to Chiller Pumpout and Refrigerant Transfer ProceduresOperating the Optional Pumpout Compressor TstatChillers with Isolation Valves Transfer the Refrigerant from Chiller to Storage TankGeneral Maintenance Test After Service, Repair, or Major Leak Ð IfReturn Refrigerant to Normal Operating Conditions Weekly Maintenance Guide Vane Actuator LinkageScheduled Maintenance Check Safety and Operating Controls MonthlyTo Change the OIL Compressor Bearing and Gear Mainten Inspect the Heat Exchanger TubesOptional Pumpout System Controls Troubleshooting Guide MAINT03 MAINT01MAINT02 MAINT04Shutdown with ON/OFF/RESET-OFF Timing OUT or Timed OUTRecycle Shutdown Normal or AUTO.-RESTARTAutorestart in Progress LOW Chilled Water Normal RUN with RESET, TEMPERATURE, or Demand Compressor Jumpstart and Refrigerant ProtectionNormal RUN Overrides Active Alerts OUT-OF-RANGE Sensor FailuresLimited 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 Control Modules Module AddressInput Options Module Starter Management Module SMM Fig Processor Module Psio FigOptions Module Installation Switch Options Setting ModuleTypical Benshaw, Inc. Solid-State Starter internal View Page Page RV1 Benshaw, Inc. Solid-State Starter Troubleshooting GuideProblem Probable Causes Area of Correction SCRCooler Heat Exchanger DataAdditional Data for Marine Waterboxes CondenserCondensers Waterbox Cover WeightsCoolers 1034 kPaCompressor/Motor Weights Compressor WeightsOptional Pumpout System Electrical Data Compressor Fits and Clearances Ft-lb Compressor Assembly TorquesDescription Torque ``ZComm CLRCOM EXTPage CLR Page Chiller Power Panel, Starter Assembly Motor Wiring Schematic Chiller Power Panel, Starter Assembly Motor Wiring Schematic GFR PMRPOT 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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