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ANGI ENERGY SYSTEMS CNG - User Manual

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JUNE 2006
OPERATION AND
MAINTENANCE MANUAL
ELECTRIC MOTOR DRIVE ARIEL
CNG COMPRESSOR STATION

Questions and Answers

Summary

User Modifications

Introduction

Description

Compressor

Details the Ariel compressor frame, cylinders, pistons, and valve components.

Induction System

Covers gas delivery, inlet pressure regulation, and recovery tank recirculation.

Compressing System

Details multi-stage compression, inter-stage cooling, and after-cooling.

Re-circulation System

Explains how gas is recirculated for smooth starts and purging of filter bowls.

Driver

Describes the electric motor for the compressor and a secondary motor for the cooler fan.

Control System

Explains the PLC-based system for automatic operation and fault annunciation.

Modes of Operation

Describes STAND-BY, WARM-UP, COMPRESSION, COOL-DOWN, and FAULTED modes.

Fault Conditions

Lists high/low analog and digital fault conditions that initiate shutdown.

Compressor Safety

General Synopsis

Outlines responsibilities for safe operation and general safety precautions.

Before You Start the Compressor

Ensures safety checks are performed before compressor startup.

Use of Compressor Station

Advises on safe practices during compressor station operation.

Other Safety Precautions

Details precautions regarding hot surfaces, moving parts, and relief valves.

Zero Energy Condition

Steps to ensure the station is in a safe, de-energized state for servicing.

Lifting and Tie-Down

Guidelines for safely lifting and securing the compressor station.

Installation

Unpacking and Handling

Instructions for inspecting and handling the unit after shipping.

Foundation

Specifies requirements for the concrete pad foundation.

Gas Supply

Information on induction pressure and required gas volume.

High Pressure Gas Connections

Guidance on connecting discharge lines to storage or dispensers.

Electrical Connections

Details required electrical connections for the compressor station.

Storage

Procedures for storing the compressor for extended periods.

Operation

Initial Start Up

Step-by-step guide for safely starting the compressor for the first time.

Maintenance

Preventative Maintenance Schedule

Schedule of recommended maintenance tasks based on operating hours.

Compressor Crankcase Lube System

Specifications for compressor lubrication, including oil type and level.

Forced Feed Lubrication System

Details on the lubricator reservoir, level, and feed rate adjustment.

Cooling Fan

Inspection of fan blades for damage and proper pitch.

Gas Cooler Cores

Instructions for inspecting gas cooler cores for debris and leaks.

Receiver Tank

Procedure for draining the receiver tank and its high liquid level switch.

Monitoring and Reporting Gauge Pressures and Temperatures

Recommendations for recording and charting pressures and temperatures for trend analysis.

Inlet Filter

Information on the inlet filter, its function, and maintenance.

Coalescing Filters

Describes inter-stage and final discharge coalescing filters and their cleaning/replacement.

Troubleshooting

Low Compressor Oil Pressures

Lists potential causes and checks for low compressor oil pressure.

High Discharge Temperature

Identifies causes for high discharge temperature and troubleshooting steps.

High Inlet Pressure

Troubleshooting steps for high inlet pressure conditions.

High Discharge Pressure

Checks for high discharge pressure, including valves and piping blockages.

Low Discharge Pressure

Troubleshooting steps for low discharge pressure, including leaks and restrictions.

Low Flow Capacity

Identifies potential causes for reduced flow capacity.

Unit Shuts Down After Start Sequence

Troubleshooting steps when the unit shuts down after the start sequence.

High Oil Carry-over in Discharge Gas

Checks for causes of high oil carry-over in the discharge gas.

High Lube Temperature - Compressor

Troubleshooting steps for high compressor lube oil temperature.

High Receiver Tank Pressure

Checks for causes of high receiver tank pressure.

Hi;Low Analog Temperature Readings on Several Channels

Troubleshooting electrical issues with multiple temperature readings.

Hi;Low Analog Temperature Readings on a Single Channel

Troubleshooting electrical issues with a single temperature reading.

Appendix

Preventive Maintenance Schedule

Detailed schedule for preventative maintenance tasks by level and interval.

Summary

User Modifications

Introduction

Description

Compressor

Details the Ariel compressor frame, cylinders, pistons, and valve components.

Induction System

Covers gas delivery, inlet pressure regulation, and recovery tank recirculation.

Compressing System

Details multi-stage compression, inter-stage cooling, and after-cooling.

Re-circulation System

Explains how gas is recirculated for smooth starts and purging of filter bowls.

Driver

Describes the electric motor for the compressor and a secondary motor for the cooler fan.

Control System

Explains the PLC-based system for automatic operation and fault annunciation.

Modes of Operation

Describes STAND-BY, WARM-UP, COMPRESSION, COOL-DOWN, and FAULTED modes.

Fault Conditions

Lists high/low analog and digital fault conditions that initiate shutdown.

Compressor Safety

General Synopsis

Outlines responsibilities for safe operation and general safety precautions.

Before You Start the Compressor

Ensures safety checks are performed before compressor startup.

Use of Compressor Station

Advises on safe practices during compressor station operation.

Other Safety Precautions

Details precautions regarding hot surfaces, moving parts, and relief valves.

Zero Energy Condition

Steps to ensure the station is in a safe, de-energized state for servicing.

Lifting and Tie-Down

Guidelines for safely lifting and securing the compressor station.

Installation

Unpacking and Handling

Instructions for inspecting and handling the unit after shipping.

Foundation

Specifies requirements for the concrete pad foundation.

Gas Supply

Information on induction pressure and required gas volume.

High Pressure Gas Connections

Guidance on connecting discharge lines to storage or dispensers.

Electrical Connections

Details required electrical connections for the compressor station.

Storage

Procedures for storing the compressor for extended periods.

Operation

Initial Start Up

Step-by-step guide for safely starting the compressor for the first time.

Maintenance

Preventative Maintenance Schedule

Schedule of recommended maintenance tasks based on operating hours.

Compressor Crankcase Lube System

Specifications for compressor lubrication, including oil type and level.

Forced Feed Lubrication System

Details on the lubricator reservoir, level, and feed rate adjustment.

Cooling Fan

Inspection of fan blades for damage and proper pitch.

Gas Cooler Cores

Instructions for inspecting gas cooler cores for debris and leaks.

Receiver Tank

Procedure for draining the receiver tank and its high liquid level switch.

Monitoring and Reporting Gauge Pressures and Temperatures

Recommendations for recording and charting pressures and temperatures for trend analysis.

Inlet Filter

Information on the inlet filter, its function, and maintenance.

Coalescing Filters

Describes inter-stage and final discharge coalescing filters and their cleaning/replacement.

Troubleshooting

Low Compressor Oil Pressures

Lists potential causes and checks for low compressor oil pressure.

High Discharge Temperature

Identifies causes for high discharge temperature and troubleshooting steps.

High Inlet Pressure

Troubleshooting steps for high inlet pressure conditions.

High Discharge Pressure

Checks for high discharge pressure, including valves and piping blockages.

Low Discharge Pressure

Troubleshooting steps for low discharge pressure, including leaks and restrictions.

Low Flow Capacity

Identifies potential causes for reduced flow capacity.

Unit Shuts Down After Start Sequence

Troubleshooting steps when the unit shuts down after the start sequence.

High Oil Carry-over in Discharge Gas

Checks for causes of high oil carry-over in the discharge gas.

High Lube Temperature - Compressor

Troubleshooting steps for high compressor lube oil temperature.

High Receiver Tank Pressure

Checks for causes of high receiver tank pressure.

Hi;Low Analog Temperature Readings on Several Channels

Troubleshooting electrical issues with multiple temperature readings.

Hi;Low Analog Temperature Readings on a Single Channel

Troubleshooting electrical issues with a single temperature reading.

Appendix

Preventive Maintenance Schedule

Detailed schedule for preventative maintenance tasks by level and interval.

ANGI ENERGY SYSTEMS CNG Specifications

General IconGeneral
BrandANGI ENERGY SYSTEMS
ModelCNG
CategoryAir Compressor
LanguageEnglish