Carrier 19XL specifications Example 10 Ð Maintenance MAINT01 Display Screen, Condenser Pressure

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Table 2 Ð LID Screens (cont)

EXAMPLE 10 Ð MAINTENANCE (MAINT01) DISPLAY SCREEN

To access this display from the LID default screen:

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight ALGORITHM STATUS.

4.Press SELECT .

5.Scroll down to highlight MAINT01.

DESCRIPTION

RANGE/STATUS

UNITS

REFERENCE POINT NAME

CAPACITY CONTROL

 

 

 

 

 

 

 

 

Control Point

10-120 (±12.2-48.9)

DEG F (DEG C)

ctrlpt

Leaving Chilled Water

±40-245 (±40-118)

DEG F (DEG C)

LCW

Entering Chilled Water

±40-245 (±40-118)

DEG F (DEG C)

ECW

Control Point Error

±99-99 (±55-55)

DEG F (DEG C)

cperr

ECW Delta T

±99-99 (±55-55)

DEG F (DEG C)

ecwdt

ECW Reset

±99-99 (±55-55)

DEG F (DEG C)

ecwres

LCW Reset

±99-99 (±55-55)

DEG F (DEG C)

lcwres

Total Error + Resets

±99-99 (±55-55)

DEG F (DEG C)

error

 

 

Guide Vane Delta

±2-2

%

gvd

 

 

Target Guide Vane Pos

0-100

%

GV

 

 

 

TRG

Actual Guide Vane Pos

0-100

%

GV

 

 

 

ACT

Proportional Inc Band

2-10

 

gv

 

 

inc

Proportional Dec Band

2-10

 

gv

 

 

dec

Proportional ECW Gain

1-3

 

gv

 

 

ecw

Water/Brine Deadband

0.5-2 (0.3-1.1)

DEG F (DEG C)

cwdb

NOTE: Overriding is not supported on this maintenance screen. Active overrides show the associated point in alert (*). Only values with capital letter reference point names are variables available for read operation.

EXAMPLE 11 Ð MAINTENANCE (MAINT02) DISPLAY SCREEN

To access this display from the LID default screen:

1.Press

2.Press

MENU

SERVICE

.

.

3. Scroll down to highlight CONTROL ALGORITHM STATUS.

4. Press

SELECT

.

5. Scroll down to highlight MAINT02.

6. Press

SELECT

.

DESCRIPTION

RANGE/STATUS

UNITS

REFERENCE POINT NAME

OVERRIDE/ALERT STATUS

 

 

 

 

 

 

 

 

 

 

MOTOR WINDING TEMP

±40-245 (±40-118)

DEG F (DEG C)

MTRW

Override Threshold

150-200 (66-93)

DEG F (DEG C)

mt

 

 

 

over

 

 

 

CONDENSER PRESSURE

±6.7-420 (±42-2896)

PSI (kPa)

CRP

Override Threshold

90-245 (621-1689)

PSI (kPa)

cp

 

 

 

 

over

 

 

 

 

EVAPORATOR REFRIG TEMP

±40-245 (±40-118)

DEG F (DEG C)

ERT

Override Threshold

2-45 (1-7.2)

DEG F (DEG C)

rt

 

 

 

over

 

 

 

DISCHARGE TEMPERATURE

±40-245 (±40-118)

DEG F (DEG C)

CMPD

Alert Threshold

125-200 (52-93)

DEG F (DEG C)

cd

 

 

 

 

alert

 

 

 

 

BEARING TEMPERATURE

±40-245 (±40-118)

DEG F (DEG C)

MTRB

Alert Threshold

175-185 (79-85)

DEG F (DEG C)

tb

 

 

 

alert

 

 

 

NOTE: Overriding is not supported on this maintenance screen. Active overrides show the associated point in alert (*). Only values with capital letter reference point names are variables available for read operation.

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Contents Introduction Abbreviations and ExplanationsMOTOR/OIL Refrigeration Cooling Cycle Chiller FamiliarizationRefrigeration 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 S1Select LID Operation and Menus FigGeneral − 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 TemperatureDescription RANGE/STATUS Units Reference Point Name Example 12 Ð Maintenance MAINT03 Display ScreenExample 13 Ð Maintenance MAINT04 Display Screen 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 CTemperature Pressure Ð HFC-134a Pressure Ð Temperature FÐ HFC-134a Pressure Ð Temperature C 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 SizeCheck Rotation Initial START-UPDry Run to Test Start-Up Sequence 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 TankReturn Refrigerant to Normal Operating Conditions General MaintenanceTest After Service, Repair, or Major Leak Ð If Weekly Maintenance Guide Vane Actuator LinkageTo Change the OIL Scheduled MaintenanceCheck Safety and Operating Controls Monthly 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 OUTAutorestart in Progress Recycle ShutdownNormal or AUTO.-RESTART LOW Chilled Water Normal RUN with RESET, TEMPERATURE, or Demand Compressor Jumpstart and Refrigerant ProtectionLimited Normal RUN Overrides Active AlertsOUT-OF-RANGE Sensor Failures 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 Input Options Module Control ModulesModule Address Options Module Starter Management Module SMM FigProcessor Module Psio Fig 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 kPaOptional Pumpout System Electrical Data Compressor/Motor WeightsCompressor Weights 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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