Related Manuals for Kobelco KNWA00
Summarization of Contents
GENERAL DESCRIPTION
1.1 Compressor
Detailed explanation of the two-stage rotary screw design and its features.
1.2 Compressed Air Flow
Explains the two-stage filtration and compression process.
1.3 Cooling Air Flow
Describes how ambient air is drawn into the cabinet for cooling.
1.4 Lubrication Oil Flow
Details the lubrication system, oil pump, cooler, and filters.
Capacity Control System
1.5.1 Unloaded, Off
Explains the system when the compressor is off or unloaded.
1.5.2 Loaded, Running
Describes the system operation when the compressor is loaded and running.
1.5.3 Unloaded, Running
Details the operation when the compressor is unloaded but running.
Monitoring and Alerts
1.6 Monitoring and Limiting Devices
Lists sensors, indicators, and parameters monitored by the PLC and operator panel.
1.7 Alerts
Explains the blue ALERT light and messages on the GT Terminal.
INSTALLATION - Initial Setup
2.1 Inspection
Instructions for inspecting the unit for damage upon receipt.
2.2 Handling
Guidance on safely handling the compressor unit using forklift or crane.
2.3 Foundation
Specifies mounting requirements on a level, horizontal floor.
2.4 Location
Environmental requirements for installation location, avoiding hazardous gases.
2.5 Cooling Air
Ventilation requirements to ensure proper cooling and avoid recirculation.
INSTALLATION - Piping and Receiver
2.6 Air Discharge Piping
Guidelines for connecting discharge piping, avoiding downsizing.
2.7 Air Receiver
Recommendations for sizing, locating, and connecting an air receiver.
INSTALLATION - Wiring
2.8 Wiring
Owner's responsibility for safe installation complying with electrical codes.
START-UP Procedures
3.1 Pre Start-Up Check
Essential checks before initial startup, including power, items, oil, and wiring.
3.2 Initial Start-Up
Step-by-step procedure for the first startup, including pump rotation and leak checks.
OPERATING INSTRUCTIONS
4.1 Starting the Compressor
Detailed steps for starting the compressor, monitoring indicators and pressures.
4.2.1 Manual Stop
Procedure for manually stopping the compressor and its associated sequence.
OPERATING INSTRUCTIONS - Continued
4.2.2 Automatic Stop
Explains automatic shutdown conditions and standby restart.
4.3 Normal Operating Conditions
Guidance on expected operating conditions and stabilization times.
ELECTRICAL CONTROLS
5.1 Compressor Operator Panel with GT Terminal
Overview of pilot lights, pushbuttons, and the GT Terminal touchscreen interface.
5.1.1 GT Terminal Page Selection
Describes how to navigate through different display pages on the GT Terminal.
5.1.2 Display Maintenance
Care and cleaning instructions for the GT Terminal LCD and touchscreen.
5.1.3 GT Terminal Option
Information on the Ethernet communication card option for remote monitoring.
5.2 Programmable Logic Controller (PLC)
Introduction to the PLC used for monitoring and controlling compressor operations.
5.2.1 CPU
Details about the CPU, memory module, and battery within the PLC.
5.2.2 PLC Status LED's
Explains the function of LED indicators on the PLC for status monitoring.
5.2.3 PLC Inputs
How PLC input LEDs indicate signals and troubleshooting tips.
5.2.4 PLC Outputs
How PLC output LEDs indicate energization and troubleshooting tips.
5.2.5 PLC Analog Inputs
Status indication for analog input modules and troubleshooting.
5.2.6 Expansion Module Replacement
Procedure for replacing an expansion module on the PLC.
5.3 Motor Starters
Types of motor starters available and their associated accessories.
MAINTENANCE
6.1 Daily
Daily checks and recordings of operating parameters and system conditions.
6.2 Weekly
Weekly inspection of the compressor cabinet interior and draining condensate.
6.3 Monthly
Monthly checks including event logs, air filters, and breather elements.
6.4 Yearly
Annual maintenance tasks like oil changes, filter replacements, and valve inspection.
6.5 Two Year
Maintenance tasks to be performed every two years, like valve assembly inspection.
6.6 Lubrication
Information on the correct lubricating oil and warnings about mixing lubricants.
6.7 Filters
Maintenance procedures for cabinet dust, inlet air, and lube oil filters.
6.7.1 Cabinet Dust Filters
Instructions for cleaning or replacing dust filters in the cabinet.
6.7.2 Inlet Air Filter
Procedure for inspecting and replacing the inlet air filter element.
6.7.3 Lube Oil Filter
Instructions for removing and replacing the lube oil filter element.
6.7.4 Sump Breather
Inspection and replacement guidelines for the sump breather element.
STAND-BY AND STORED UNITS
7.1 Stand-By Compressors
Requirements for running stand-by units weekly to prevent condensation.
7.2 Short Term Storage
Procedure for short-term storage (one month or less).
7.3 Long Term Storage
Detailed steps for preparing the unit for long-term storage.
Appendix B - Unit Dimensions and Clearances
Appendix B - Unit Dimensions, Minimum Working Clearances
Provides diagrams and dimensions for unit placement and clearances.
Appendix B (cont.) - Unit Dimensions and Field Connections
Details unit dimensions and field connection points for wiring and piping.
Appendix B (cont.) - Unit Dimensions, Field Connections and Mounting
Shows connection details for drains, air outlet, and bolt-down mounting.
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