INDEX

Abbreviations and Explanations, 4

Oil Changes, 63

Adding Refrigerant, 61

Oil Charge, 50

Adjusting the Refrigerant Charge, 61

Oil Cooler, 32

After Extended Shutdown, 57

Oil Pressure and Compressor Stop (Check), 56

After Limited Shutdown, 57

Oil Reclaim Filters, 63

Attach to Network Device Control, 37

Oil Reclaim System, 9

Automatic Soft-Stop Amps Threshold, 40

Oil Speci®cation, 63

Auto. Restart After Power Failure, 33

Oil Sump Temperature Control, 32

Before Initial Start-Up, 41

Open Oil Circuit Valves, 41

Calibrate Motor Current, 56

Operating Instructions, 56

Capacity Override, 31

Operating the Optional Pumpout Compressor, 59

Carrier Comfort Network Interface, 48

Operator Duties, 56

Changing Oil Filter, 63

Optional Pumpout System Maintenance, 65

Charge Refrigerant Into Chiller, 53

Options Modules, 79

Chilled Water Recycle Mode, 40

Ordering Replacement Chiller Parts, 65

Chiller Dehydration, 47

Overview (Troubleshooting Guide), 66

Chiller Familiarization, 5

Physical Data, 85

Chiller Information Plate, 5

PIC System Components, 11

Chiller Operating Condition (Check), 56

PIC System Functions, 28

Chiller Tightness (Check), 41

Power Up the Controls and Check the Oil Heater, 50

Chillers with Isolation Valves, 60

Pumpout Compressor Water Piping (Check), 47

Chillers with Pumpout Storage Tanks, 59

Pumpout System Controls and Compressor (Check), 52

Cold Weather Operation, 57

Preparation (Initial Start-Up), 55

Compressor Bearing and Gear Maintenance, 64

Preparation (Pumpout and Refrigerant Transfer

Condenser, 5

Procedures), 59

Condenser Freeze Prevention, 32

Prepare the Chiller for Start-Up, 56

Condenser Pump Control, 32

Pressure Transducers (Check), 65, 66

Control Algorithms Checkout Procedure, 67

Prevent Accidential Start-Up, 56

Control Center, 5, 63

Processor Module, 79

Control Modules, 78

Pumpout and Refrigerant Transfer Procedures, 59

Control Test, 67

Ramp Loading Control, 31

Controls, 11

Refrigerant Filter, 63

Cooler, 5

Refrigerant Float System (Inpsect), 64

Default Screen Freeze, 29

Refrigerant Leak Testing, 61

De®nitions (Controls), 11

Refrigerant Properties, 61

Demand Limit Control, Option, 33

Refrigerant (Removing), 61

Design Set Points, (Input), 50

Refrigerant Tracer, 41

Details (Lubrication Cycle), 8

Refrigeration Cycle, 5

Display Messages (Check), 66

Refrigeration Log, 57

Dry Run to Test Start-Up Sequence, 55

Relief Devices (Check), 47

Equipment Required, 41

Relief Valves and Piping (Inspect), 64

Extended Shutdown, 57

Remote Start/Stop Controls, 32

Factory-Mounted Starter, 5

Repair the Leak, Retest, and Apply Standing

General (Controls), 11

Vacuum Test, 62

General Maintenance, 61

Replacing Defective Processor Modules, 80

Guide Vane Linkage (Check), 62

Rotation (Check), 55

Heat Exchanger Tubes (Inspect), 64

Running System (Check), 56

High Altitude Locations, 53

Safety and Operating Controls (Check Monthly), 63

High Discharge Temperature Control, 32

Safety Considerations, 1

Ice Build Control, 36

Safety Controls, 29

Initial Start-Up, 55

Safety Shutdown, 41

Instruct the Customer Operator, 56

Scheduled Maintenance, 63

Introduction, 4

Selecting Refrigerant Type, 50

Job Data Required, 41

Service Con®guration (Input), 50

Lead/Lag Control, 34

Service Ontime, 63

Leak Rate, 61

Service Operation, 38

Leak Test Chiller, 41

Set Up Chiller Control Con®guration, 50

LID Operation and Menus, 14

Shipping Packaging (Remove), 41

Local Occupied Schedule (Input), 50

Shutdown Sequence, 40

Local Start-Up, 39

Solid-State Starters, 81

Lubrication Cycle, 8

Spare Safety Inputs, 32

Lubrication System (Check), 62

Standing Vacuum Test, 43

Manual Guide Vane Operation, 57

Starter (Check), 48

Manual Operation of the Guide Vanes, 55

Starter Management Module, 79

Motor-Compressor, 5

Starting Equipment, 10, 65

Motor Cooling Control, 29

Start-Up/Shutdown/Recycle Sequence, 39

Motor/Oil Refrigeration Cooling Cycle, 5

Start the Chiller, 56

Notes on Module Operation, 78

Stop the Chiller, 57

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Carrier 19XL specifications Index

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.