DENAIR DA Series - User Manual

DA Series Operation Manual
1
Contents
1. Safety Precautions.............................................................................................................. 1
1.1 Electrical Safety...................................................................................................................... 1
1.2 Driving Components..............................................................................................................1
1.3 High Temperature and High Pressure.............................................................................. 1
1.4 Unit Drainage........................................................................................................................... 2
2. Inspection and Handling...................................................................................................2
2.1 Product Warranty of Compressors....................................................................................2
2.2 Check of Specifications and Model................................................................................... 2
2.3 Inspection of Accessories and Appearance................................................................... 3
2.4 Handling Precautions............................................................................................................3
3. Installation..............................................................................................................................4
3.1 Environment Requirements.................................................................................................4
3.2 Installation Location Requirements.................................................................................. 5
3.3 Ventilation and Cooling Requirements.............................................................................5
3.4 Selection Requirements for Air Rate of Ventilating fans............................................. 6
3.5 Warning..................................................................................................................................... 7
3.6 Suggestions for Pipeline...................................................................................................... 8
3.7 Electric Appliances Installation Precautions and Control System......................... 11
4. Introduction to the System............................................................................................14
4.1 Overall System......................................................................................................................14
4.2 Composition of the Compressor Unit.............................................................................14
4.3 Lubricating Oil System....................................................................................................... 15
4.4 Oil-gas Separation System................................................................................................ 15
5 Operation of Controller.................................................................................................. 16
5.1 Key Description.................................................................................................................... 16
5.2 Contents of Controller........................................................................................................ 16
5.3 Contents of User Parameter..............................................................................................19
5.4 Schematic Wiring Diagram................................................................................................ 20
5.5 Control Operation................................................................................................................ 21
5.6 Warnings and Prompts....................................................................................................... 22
5.7 Safety Protection..................................................................................................................23
6. Function Description of System Components...................................................... 24
6.1 Air Filter.................................................................................................................................. 24
6.2 Inlet Valve............................................................................................................................... 24
6.3 Oil-gas Barrel........................................................................................................................ 24
6.4 Oil Separator..........................................................................................................................25
6.5 Safety Valve........................................................................................................................... 25
6.6 Pressure Maintenance Valve.............................................................................................25

Summary

Safety Precautions

Electrical Safety

Safety precautions related to electrical hazards during operation and maintenance.

Driving Components Safety

Guidelines for safe interaction with moving parts and enclosures.

High Temperature and High Pressure Precautions

Precautions for handling components operating at high temperatures and pressures.

Unit Drainage Procedures

Procedures for draining condensate to prevent emulsification and system issues.

Inspection and Handling

Product Warranty Details

Details on the warranty period and conditions for Denair screw air compressors.

Specifications and Model Verification

Instructions to verify the air compressor's nameplate specifications against the order.

Accessory and Appearance Inspection

Check for correct accessories and overall appearance upon receiving the compressor.

Safe Handling Guidelines

Guidelines for safe handling and lifting of the air compressor unit.

Installation Requirements

Environment Requirements

Specifies indoor installation requirements, ambient temperature, and humidity limits.

Installation Location Criteria

Criteria for selecting a suitable installation site, including foundation and stability.

Ventilation and Cooling Needs

Ensuring adequate ventilation and cooling to prevent heat short cycles and ensure performance.

Ventilating Fan Air Rate Selection

Table and guidance for selecting appropriate ventilating fan air rates based on unit power.

Installation Warnings and Pipeline Suggestions

General Safety Warnings

Critical warnings regarding compressed air, electricity, and operational hazards.

Pipeline Installation Recommendations

Recommendations for designing and installing air pipelines for efficient condensate drainage.

Air Pipeline Piping Suggestions

Guidance on selecting pipe diameter, using flanges, and ensuring pipeline flexibility.

Electric Appliances Installation and Control System

Electric Appliance Installation Regulations

Rules for preparing electric appliance installation, including voltage and connection checks.

Driving Motor Setup and Verification

Procedure for checking the correct rotation direction of the driving motor.

Fan Motor Setup and Verification

Procedure for verifying the correct rotation direction of the fan motor.

Control System Overview

Overview of the control system and its components.

Electrical Circuit Details

Details on the electrical control system, including internal and startup circuits.

System Introduction

Overall System Description

Overview of the air compressor system, driven by a motor and including internal/external components.

Compressor Unit Components

Lists the main internal components of the air compressor unit.

Lubricating Oil System

Explanation of how lubricating oil circulates for cooling and part lubrication.

Oil-gas Separation System

Description of the oil-gas separation system's components and basic operating principle.

Controller Operation

Controller Key Descriptions

Explanation of the function of each key on the controller panel.

Controller Contents and Display

Details on the controller's display interfaces and states.

State and Display Interface

Initial and subsequent display interfaces when the unit is powered on.

Operation Parameter Viewing

Procedure for navigating and viewing operation parameters via the controller menu.

User Parameter Access

Method for accessing and reviewing user-configurable parameters on the controller.

User Parameter Contents

Detailed breakdown of user parameters, including pressure, temperature, and delay settings.

Schematic Wiring Diagram

Visual representation of the electrical wiring diagram for the air compressor system.

Control Operation Procedures

Startup Operation (Y-△ Start)

Step-by-step procedure for starting the main motor using the Start key.

Automatic Operation Control

Description of how the compressor operates automatically based on air pressure.

Normal Stop Procedure

Procedure for stopping the main motor and fan motor normally.

Frequent Startup Resistance Control

Explanation of delays implemented to prevent frequent motor startups and potential issues.

Accidental and Emergency Shutdowns

Procedures for handling accidental shutdowns and emergency stop activations.

Warnings, Prompts, and Safety Protection

General Warnings and Prompts

Table of system failures, corresponding display states, indicator lights, and compressor status.

Motor Protection Features

Details on the controller's motor protection features like short-circuit and overload protection.

Temperature Protection Mechanisms

How the system protects against high exhaust temperatures by alarming and shutting down.

Anti-Reversal and Overpressure Protection

Mechanisms to prevent motor startup if phase sequence is incorrect or pressure is too high.

Sensor Failure Protection

Response to pressure or temperature sensor failures, leading to alarms and shutdown.

System Component Functions

Air Filter Function

Role of the air filter in filtrateing intake air and its impact on system components.

Inlet Valve Function

Function of the piston valve in controlling the air intake volume.

Oil-gas Barrel Function

Function of the oil-gas barrel in storing oil and separating air-fuel mixture.

Oil Separator Function

How the oil separator filters oil spill from compressed air using glass fibers.

Safety Valve Function

Function of the safety valve in automatically discharging pressure during abnormal operation.

Pressure Maintenance Valve Function

Role of the pressure maintenance valve in lubricating oil circulation and system pressure.

Rear Cooler Function

Function of the rear cooler in cooling compressed air and controlling exhaust temperature.

Oil Cooler Function

Purpose of the oil cooler in cooling lubricating oil and its maintenance.

Oil Filter Function

Function of the oil filter in removing oil impurities to improve lubrication and protect parts.

Exhaust Temperature Sensor Function

Role of the exhaust temperature sensor in monitoring and controlling compressor temperature.

Pressure Sensor Function

Function of the pressure sensor in monitoring system pressure for protection.

Maintenance Procedures

Belt and Pulley Inspection and Update

Procedures for adjusting belt tension and replacing worn or damaged belts.

Air Filter Replacement

Guidance on replacing the air filter when the maintenance indicator is lit.

Motor Bearing Lubrication

Table and instructions for supplementary filling and interval of lubricating grease for motor bearings.

Compressor Bearing Considerations

Information on compressor bearings as consumables and factors affecting their lifespan.

Lubricating Oil Change Guidelines

Guidelines for changing lubricating oil, including oil type and procedures.

Oil Separator Maintenance

Details on the oil separator, its service time, and replacement procedure.

Oil Return Pipeline Maintenance

Inspection and maintenance of the oil return pipeline for blockages and cleanliness.

Engine Oil Filter Maintenance

Information on the service time, replacement, and cleaning of the engine oil filter.

Pipe Joint Maintenance

Inspection and maintenance of pipe joints, gaskets, and hoses.

Inlet Valve Maintenance

Procedure for dismounting and cleaning the inlet valve piston.

Pressure Maintenance Valve Maintenance

Regular dismounting, cleaning, and testing of the pressure maintenance valve.

Safety Valve Maintenance

Information on safety valve adjustment and effectiveness testing.

Draining Solenoid Valve Maintenance

Setting appropriate load/unloading pressures and periodic inspection of the valve.

Cooler Cleaning and Maintenance

Cleaning the cooler for better heat dissipation and maintaining cooling capacity.

Electric Insulation Testing

Testing insulation values of motors to prevent burnout and identifying degradation reasons.

Periodic Inspection and Cleaning Schedule

Periodic testing and cleaning as per maintenance tables, provided by service staff.

Safety Protection and Warning Devices

Motor Overload Protection

Protection mechanisms for the main driving motor and fan motor against overload conditions.

Exhaust Over-temperature Protection

System shutdown triggered by exhaust temperature exceeding 105°C, common causes, and prevention.

Other Protection, Warnings, and Troubleshooting

Setting and Description of Other Protection

References to sections detailing other protection and warning device settings.

Startup Failure Causes and Troubleshooting

Troubleshooting steps for failures occurring during system startup.

System Under-pressure and Over-dampness Issues

Addressing system under-pressure and over-dampness problems and their causes.

Pressure Fluctuation and Oil Content Issues

Troubleshooting great pressure fluctuations and excess oil content in exhaust.

Vibration, Safety Valve, and Lubricating Oil Issues

Resolving vibration noise, safety valve actuation, and short lubricating oil life.

Annex I: Periodic Maintenance Cycles

Maintenance Item and Frequency Table

Table detailing periodic maintenance tasks and their recommended cycles (hours/time).

Lubricating Oil Replacement Precautions

Important precautions regarding the selection and replacement of lubricating oil based on conditions.

DENAIR DA Series Specifications

General

Brand	DENAIR
Model	DA Series
Category	Air Compressor
Language	English