Curtis OL 512, OL 524, OL 812

Instruction Manual Oil-Less Compressors

TABLE OF CONTENTS

Safety................................................................................................................................................... i

Safety Precautions............................................................................................................................... i,ii

Receiving Delivery............................................................................................................................... iii

Freight Damage.................................................................................................................................... iii

Installation............................................................................................................................................ iii

Electrical Supply Requirements............................................................................................................ iv

Start-up Procedures.............................................................................................................................. iv

Air Inlet Systems.................................................................................................................................. iv,v

Compressed Air Discharge System....................................................................................................... v

System Components............................................................................................................................ vi, vii

Stopping for Maintenance..................................................................................................................... vii

Pulley Alignment and Belt Tensioning................................................................................................... viii

1. GENERAL................................................................................................................................................. 1

1.1. PURPOSE AND SHORT DESCRIPTION.................................................................................................. 1

1.2. DESIGN AND MODE OF OPERATION..................................................................................................... 8

1.2.1 DESIGN.................................................................................................................................................... 8

1.2.2. MODE OF OPERATION (1ST STAGE)…....................................................................................................... 8

MODE OF OPERATION (2ND STAGE)……………………………………………………………………………. 9

1.3. TECHNICAL DATA................................................................................................................................... 10,11

1.4. ELECTRICAL DATA.................................................................................................................................. 12

2. INTAKE FILTER........................................................................................................................................ 13

2.1. DESCRIPTION.......................................................................................................................................... 13

2.2. INTAKE FILTER MAINTENANCE............................................................................................................. 13

3. INTERMEDIATE AND FINAL SEPARATOR.............................................................................................. 14

3.1. FUNCTIONAL DESCRIPTION OF INTERMEDIATE SEPARATOR (2-STAGE COMPRESSSOR ONLY). 14

3.1.1. CONDENSATE DRAIN............................................................................................................................. 14

3.1.2. INTERMEDIATE SEPARATOR MAINTENANCE...................................................................................... 14

3.2. FUNCTIONAL DESCRIPTION OF FINAL SEPARATOR........................................................................... 15

3.2.1. CONDENSATE DRAIN............................................................................................................................. 15

3.2.2. FINAL SEPARATOR MAINTENANCE....................................................................................................... 15

4. VALVES.................................................................................................................................................... 16

4.1. FUNCTIONAL DESCRIPTION OF 1st STAGE......................................................................................... 16

4.2. FUNCTIONAL DESCRIPTION OF 2nd STAGE......................................................................................... 16

4.3. INITIAL OPERATIONAL CHECK OF VALVES............................................................................................ 17

4.4. GENERAL INSTRUCTIONS FOR CHANGING THE VALVES................................................................... 17

4.5. CHANGING THE VALVES OF THE 1st STAGE........................................................................................ 18

4.6. CHANGING 2nd STAGE VALVES AND VALVES OF 1st STAGE PRESSURE VALVE............................. 18

5. AUTOMATIC CONDENSATE DRAIN........................................................................................................ 19

5.1. DESCRIPTION.......................................................................................................................................... 19

5.2. FUNCTION............................................................................................................................................... 19

6. COOLING SYSTEM.................................................................................................................................. 20

6.1. GENERAL................................................................................................................................................. 21

7. SAFETY REGULATIONS.......................................................................................................................... 21

7.1. GENERAL................................................................................................................................................. 21