Carrier specifications Amps Correction Factors For 19XL Motors, Volt Motor Code

Page 52

Table 6 Ð Amps Correction Factors

for 19XL Motors

VOLT/

 

 

 

MOTOR CODE

 

 

 

Hz

CB

CC

CD

CE

CL

CM

CN

CP

CQ

CR

200/60

4

5

3

6

3

2

3

2

2

2

208/60

5

5

5

8

4

2

4

2

2

2

220/60

3

4

2

2

2

3

1

1

1

1

230/60

5

6

4

4

3

5

2

2

2

2

240/60

5

6

4

4

3

8

2

2

2

2

360/60

4

2

4

2

2

2

1

1

1

1

380/60

7

4

6

4

4

5

3

2

2

2

400/60

7

5

8

4

4

5

3

2

3

4

440/60

3

3

2

2

1

1

1

1

3

4

460/60

5

4

3

2

2

2

2

2

5

6

480/60

7

5

4

3

3

3

3

3

7

8

550/60

4

2

3

2

1

2

3

2

2

2

575/60

4

4

4

2

2

3

4

3

3

3

600/60

8

5

6

4

3

4

6

5

4

4

3300/60

4

4

4

1

2

3

3

3

2

2

2400/60

4

4

3

3

2

3

2

2

3

3

4160/60

4

4

3

3

2

3

2

2

3

3

220/50

3

1

2

2

2

3

2

1

1

1

230/50

4

2

2

3

2

4

3

2

1

1

240/50

5

3

5

4

3

5

3

3

2

2

320/50

2

2

2

2

1

1

1

1

3

3

346/50

4

4

3

3

3

2

1

2

3

4

360/50

5

5

4

4

4

2

2

2

8

8

380/50

5

2

3

3

3

2

4

2

2

2

400/50

6

4

4

5

4

3

6

4

3

3

415/50

8

5

5

6

5

4

7

5

4

4

3000/50

3

2

2

3

2

3

1

2

1

2

3300/50

4

3

3

3

3

4

2

2

1

2

MODIFY EQUIPMENT CONFIGURATION IF NECES- SARY Ð The Equipment Con®guration table has tables to select and view or modify. Carrier's certi®ed drawings will have the con®guration values required for the jobsite. Modify these tables only if requested.

Con®g Table Modi®cations Ð Change the values in this table per job data. See certi®ed drawings for values. Modi®ca- tions include:

·chilled water reset

·entering chilled water control (Enable/Disable)

·4-20 mA demand limit

·auto. restart option (Enable/Disable)

·remote contact option (Enable/Disable)

Owner-Modi®ed CCN TablesÐ The following tables are de- scribed for reference only.

Occdef Table Modi®cations Ð The Occdef tables contain the Local and CCN time schedules, which can be modi®ed here, or in the Schedule screen as described previously.

Holidef Table Modi®cations Ð The Holidef tables con®gure the days of the year that holidays are in effect. See the holi- day paragraphs in the Controls section for more details.

Brodefs Table Modi®cations Ð The Brodefs table de®nes the outside-air temperature sensor and humidity sensor if one is to be installed. It will de®ne the start and end of day- light savings time. Enter the dates for the start and end of daylight savings if required for the location. Brodefs also will activate the Broadcast function which enables the holi- day periods that are de®ned on the LID.

Other Tables Ð The Alarmdef, Cons-def, and Runt-def con- tain tables for use with a CCN system. See the applicable CCN manual for more information on these tables. These tables can only be de®ned through a CCN Building Supervisor.

CHECK VOLTAGE SUPPLY Ð Access the Status 01 screen and read the actual line voltage. This reading should be equal

to the incoming power to the starter. Use a voltmeter to check incoming power at the starter power leads. If the readings are not equal, an adjustment can be made to the 24-v input to the SMM at the potentiometer located in the low-voltage section to equalize the two readings.

PERFORM AN AUTOMATED CONTROL TEST Ð Check the safety controls status by performing an automated con- trols test. Access the Control Test table and select the Automated Tests function (Table 8).

The Automated Control Test will check all outputs and inputs for function. It will also set the refrigerant type. The compressor must be in the OFF mode in order to operate the controls test and the 24-v input to the SMM must be in range (per line voltage percent on Status01 table). The OFF mode is caused by pressing the STOP pushbutton on the LID. Each test will ask the operator to con®rm that the operation is oc- curring, and whether or not to continue. If an error occurs, the operator has the choice to try to address the problem as the test is being done, or to note the problem and proceed to the next test.

NOTE: If during the Control Test the guide vanes do not open, check to see that the low pressure alarm is not active. (This will cause the guide vanes to close).

NOTE: The oil pump test will not energize the oil pump if cooler pressure is below ±5 psig (±35 kPa).

When the test is ®nished, or the EXIT softkey is pressed,

the test will be stopped and the Control Test menu will be displayed. If a speci®c automated test procedure is not completed, access the particular control test to test the func- tion when ready. The Control Test menu is described as follows:

Automated Tests

As described above, a complete

 

control test.

PSIO Thermistors

Check of all PSIO thermistors only.

Options Thermistors

Check of all options boards

 

thermistors.

Transducers

Check of all transducers.

Guide Vane Actuator

Check of the guide vane operation.

Pumps

Check operation of pump outputs,

 

either all pumps can be activated,

 

or individual pumps. The test will

 

also test the associated input such

 

as ¯ow or pressure.

Discrete Outputs

Activation of all on/off outputs or

 

individually.

Pumpdown/Lockout

Pumpdown prevents the low refrig-

 

erant alarm during evacuation so

 

refrigerant can be removed from

 

the unit, locks the compressor off,

 

and starts the water pumps.

Terminate Lockout

To charge refrigerant and enable

 

the chiller to run after pumpdown

 

lockout.

Refrigerant Type*

Sets type of refrigerant used:

 

HCFC-22 or HFC-134a.

*Make sure to Attach to Local Device after changing refrigerant type. Refer to Selecting Refrigerant Type section on page 50.

Check Optional Pumpout System Controls and Compressor Ð Controls include an on/off switch, a 3-amp fuse, the compressor overloads, an internal thermostat, a com- pressor contactor, and a refrigerant high pressure cutout. The high pressure cutout is factory set to open at 220 ± 5 psig (1250 ± 34 kPa), and automatically reset at 185 + 0, −7 psig (1280 +0,±48 kPa) with HCFC-22.HFC-134a units open at 161 psig (1110 kPa) and reset at 130 psig (896 kPa). Check that the water-cooled condenser has been connected.

52

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Contents Introduction Abbreviations and ExplanationsRefrigeration Cycle Chiller FamiliarizationMOTOR/OIL Refrigeration Cooling Cycle 19XL Rear View Take-Apart Rabbet Fit Connector Cooler In/Out Temperature SensorsCondenser In/Out Temperature Sensors Cooler Pressure Schrader FittingLubrication Cycle Refrigerant Motor Cooling and Oil Cooling CyclesLubrication System Starting Equipment Unit-Mounted Solid-State Starter OptionalDenitions ControlsMajor PIC Components Panel Locations PIC Component Panel19XL Controls and Sensor Locations Pressure Transducer, TypicalPower Panel with Options Control and OIL Heater Voltage Selector S1General LID Operation and Menus FigSelect − 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 ScreenDescription Range Units Reference Point Name Alarm History LID ScreensExample 1 Ð STATUS01 Display Screen Menu Status SelectExample 2 Ð STATUS02 Display Screen Example 3 Ð STATUS03 Display ScreenExample 4 Ð Setpoint Display Screen MenuExample 5 Ð Configuration Config Display Screen Example 6 Ð LEAD/LAG Configuration Display ScreenECW Control Option ICE Build TerminationExample 7 Ð SERVICE1 Display Screen Example 8 Ð SERVICE2 Display Screen Spare Alert EnableExample 9 Ð SERVICE3 Display Screen Menu ServiceExample 10 Ð Maintenance MAINT01 Display Screen Example 11 Ð Maintenance MAINT02 Display ScreenDischarge Temperature Bearing TemperatureExample 13 Ð Maintenance MAINT04 Display Screen Example 12 Ð Maintenance MAINT03 Display ScreenDescription RANGE/STATUS Units Reference Point Name PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page Lead/Lag Control ECWHgbp 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 Using the Optional Storage Tank and Pumpout Before Initial START-UPJob Data Required 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 C Ð HFC-134a Pressure Ð Temperature FTemperature 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 CodeCharge Refrigerant into Chiller 19XL Chiller Equalization Without PUMP- OUT UnitControl Test Menu Functions Tests to be Devices Tested PerformedRefrigerant Charges 19XL Total Refrigerant ChargeCooler SizeDry Run to Test Start-Up Sequence Initial START-UPCheck Rotation Check Oil Pressure and Compressor Stop Calibrate Motor CurrentOperating Instructions Operator DutiesTo Stop the Chiller Plant Pumpout and Refrigerant Transfer Procedures Operating the Optional Pumpout CompressorTransfer Refrigerant from Storage Tank to Chiller TstatChillers with Isolation Valves Transfer the Refrigerant from Chiller to Storage TankTest After Service, Repair, or Major Leak Ð If General MaintenanceReturn Refrigerant to Normal Operating Conditions Weekly Maintenance Guide Vane Actuator LinkageCheck Safety and Operating Controls Monthly Scheduled MaintenanceTo Change the OIL Compressor Bearing and Gear Mainten Inspect the Heat Exchanger TubesOptional Pumpout System Controls Troubleshooting Guide MAINT01 MAINT02MAINT03 MAINT04Shutdown with ON/OFF/RESET-OFF Timing OUT or Timed OUTNormal or AUTO.-RESTART Recycle ShutdownAutorestart in Progress LOW Chilled Water Normal RUN with RESET, TEMPERATURE, or Demand Compressor Jumpstart and Refrigerant ProtectionOUT-OF-RANGE Sensor Failures Normal RUN Overrides Active AlertsLimited 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 Module Address Control ModulesInput Options Module Processor Module Psio Fig Starter Management Module SMM FigOptions Module Installation Switch Options Setting ModuleTypical Benshaw, Inc. Solid-State Starter internal View Page Page Benshaw, Inc. Solid-State Starter Troubleshooting Guide Problem Probable Causes Area of CorrectionRV1 SCRHeat Exchanger Data Additional Data for Marine WaterboxesCooler CondenserWaterbox Cover Weights CoolersCondensers 1034 kPaCompressor Weights Compressor/Motor WeightsOptional Pumpout System Electrical Data Compressor Fits and Clearances Compressor Assembly Torques Description TorqueFt-lb ``ZCLR COMComm EXTPage CLR Page Chiller Power Panel, Starter Assembly Motor Wiring Schematic Chiller Power Panel, Starter Assembly Motor Wiring Schematic PMR POTGFR 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.

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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.