Carrier 30GX 082-358 - User Manual

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Summary

Introduction and Safety Considerations

Installation Safety Considerations

Safety precautions for unit installation, inspection for damage, and handling during placement.

Equipment and Components Under Pressure

Information on pressure components and requirements for consulting national associations or owners.

Maintenance Safety Considerations

Safety rules for engineers working on electrical/refrigeration components and general power supply.

Preliminary Checks

Check Equipment Received

Inspecting the unit for damage or missing parts and confirming the correct model and accessories.

Moving and Siting the Unit

Guidelines for safely moving and positioning the unit, considering space and support requirements.

Dimensions, Clearances, and Weight Distribution

3.1 - 30 HXC 080-190 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30HXC models 080-190.

3.2 - 30 HXC 200-375 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30HXC models 200-375.

3.3 - 30 GX 082-182 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30GX models 082-182.

3.4 - 30 GX 207-358 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30GX models 207-358.

Summary

Introduction and Safety Considerations

Installation Safety Considerations

Safety precautions for unit installation, inspection for damage, and handling during placement.

Equipment and Components Under Pressure

Information on pressure components and requirements for consulting national associations or owners.

Maintenance Safety Considerations

Safety rules for engineers working on electrical/refrigeration components and general power supply.

Preliminary Checks

Check Equipment Received

Inspecting the unit for damage or missing parts and confirming the correct model and accessories.

Moving and Siting the Unit

Guidelines for safely moving and positioning the unit, considering space and support requirements.

Dimensions, Clearances, and Weight Distribution

3.1 - 30 HXC 080-190 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30HXC models 080-190.

3.2 - 30 HXC 200-375 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30HXC models 200-375.

3.3 - 30 GX 082-182 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30GX models 082-182.

3.4 - 30 GX 207-358 Dimensions

Dimensional data, clearances for operation/maintenance, and weight for 30GX models 207-358.

The Carrier 30GX 082-358 and 30HXC 080-375 are screw compressor water-cooled and air-cooled liquid chillers, respectively, designed for global chiller applications. These units operate at 50 Hz and offer nominal cooling capacities ranging from 291-1308 kW for the 30HXC series and 284-1214 kW for the 30GX series. The manual provides comprehensive installation, operation, and maintenance instructions to ensure safe and reliable service within their application range.

Function Description:

These units function as liquid chillers, utilizing screw compressors to cool a liquid (typically water or a brine solution) which is then circulated to provide cooling for various applications. The 30HXC models are water-cooled, meaning they reject heat to a water loop, while the 30GX models are air-cooled, rejecting heat directly to the ambient air via fans. Both series are designed for high levels of safety during installation, start-up, operation, and maintenance.

Important Technical Specifications:

Cooling Capacity:
- 30HXC: 291-1308 kW (nominal)
- 30GX: 284-1214 kW (nominal)
Frequency: 50 Hz
Refrigerant: R134a (synthetic polyol-ester oil lubricated compressors)
Compressor Type: Geared twin screw compressor
Main Components: Evaporator, condenser (and oil separator for 30HXC), oil separator (30GX), electronic expansion device (EXD), economizer, oil pumps, motor cooling valves, sensors.
Electrical Data: Detailed electrical data is provided for both 30HXC and 30GX units, including compressor specifications and options for high condensing temperatures.
Operating Range: Specific unit operating ranges are detailed, along with minimum and maximum chilled water flow rates.
Water Flow Rates: Cooler flow rate (l/s) and condenser flow rate (l/s) specifications are provided.
Pressure Drop Curves: Evaporator and condenser pressure drop curves are included for system design.
Dimensions and Clearances: Detailed drawings and tables specify dimensions (A, B, C, D, E, F) and weights for various models within both series (e.g., 30HXC 080-190, 30HXC 200-375, 30GX 082-182, 30GX 207-358). Clearances for operation, maintenance, and heat exchanger tube removal are critical for proper installation.
Weight Distribution: Weight distribution points and total unit weights (including optional configurations) are provided.
Power Supply: Requirements for the unit's power supply are outlined, along with recommendations for wire sections and acceptable voltage phase imbalance.

Usage Features:

Installation Flexibility: The units can be installed in various configurations, including multiple chiller installations.
Water Connections: Detailed instructions for water connections, flow control, and evaporator/condenser water box bolt tightening are provided.
Frost Protection: Features and instructions for frost protection are included, especially for 30GX units (option 41A).
Year-Round Operation: Option 28 allows for year-round operation of 30GX units.
Noise Reduction Options: 30GX units can be equipped with compressor and evaporator noise insulation (option 14A) or low-noise acoustic panels (option 15).
Soft Start: Option 25 provides soft start functionality for 3- and 4-compressor 30HXC and 30GX units.
Control Box Protection: Options for electric protection level (IP44C, option 20) and tropicalized control boxes (option 22) are available for 30HXC and 30GX units.
Brine Units: Option 5 allows for brine units for low-temperature evaporator leaving applications.
Disassembled Units: Option 52 is available for disassembled 30HXC units, facilitating installation in challenging spaces.
Fan Pressure: Option 12 provides an available fan pressure of 150 Pa for 30GX units.
Master/Slave Mode: The units can operate in master/slave mode for enhanced system control.

Maintenance Features:

Safety First: Emphasizes strict adherence to safety precautions, including never working on an energized unit, locking out power during maintenance, and using appropriate personal protective equipment.
Regular Inspections: Recommends annual checks of high-pressure safety switches and protection devices (valves), with more frequent inspections in corrosive environments.
Leak Detection: Regular leak tests are mandatory, and any leaks must be repaired immediately.
Refrigerant Management: Detailed instructions for refrigerant charging (adding charge), identifying low charge conditions (for 30HXC), and proper handling of R134a refrigerant are provided. Prohibits the use of oxygen for purging or pressurizing lines and warns against mixing refrigerants.
Oil Management: Instructions for oil charging (low oil recharging) and integral oil filter change procedures, including a change-out schedule, are outlined.
Pressure Transducers: Information on pressure transducers is included.
Compressor Replacement: Guidance on compressor replacement is provided.
Water Circuit Maintenance: Instructions for closing shutoff valves, purging hydronic circuits, and draining water boxes before working on components.
Component Inspection: Periodical inspection of all valves, fittings, and pipes for corrosion or leaks is recommended.
Certified Technicians: All electric and refrigeration component repairs must be carried out by authorized and fully qualified personnel. Welding operations require qualified specialists.
Original Parts: Emphasizes the use of only original replacement parts for any repair or component replacement.
Start-Up Checklist: A comprehensive start-up checklist for 30HXC/GX liquid chillers is provided for job file use.
Quality Management System: The product is supported by a Quality Management System Approval (ISO9001).