FScurtis SEG-5 Operator's Manual
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FScurtis SEG-5 Operator's Manual

Oil-injectedrotary screw compressors
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SEG
OIL-INJECTED
OPERATOR
MANUAL
SEG-5
SEG-7.5 SEG-15
Series
ROTARY SCREW COMPRESSORS
SEG-10
CAP881
OCTOBER, 2012
REV.A

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Summary of Contents for FScurtis SEG-5

  • Page 1 CAP881 OCTOBER, 2012 REV.A Series OIL-INJECTED ROTARY SCREW COMPRESSORS OPERATOR MANUAL SEG-5 SEG-10 SEG-7.5 SEG-15...

  • Page 2: Table Of Contents

    CAP881 Table of Contents 1.0 Introduction -Preface ………………………………………………………………………….. -Safety …………………………………………………………………………… 2.0 Receiving and Installation - Installation / Precaution …………………………...…………………………… -Electrical …………………………………..…………………………………… 3.0 Principle of Screw air compressor - General …...……………………………………………………………..…….. - Air/Oil Flow………………………………………………………………..4.0 System Flow Chart and Components Function - System Flow Chart …………………………………………………………….

  • Page 3: Introduction

    CAP881 1.0 Introduction Preface Warning Read this manual before assembly or operation of the compressor. Become familiar with this information, its safety instructions and its operation before starting unit. Serious personal injury may result if safety and/or operational information is not understood or comprehended. ◎...
  • Page 4 CAP881 Description of symbols – cont. Symbols Description of symbols Prohibited Extreme caution ◎ Warning Labels are placed on the machines. If the labels are not clear or missing, contact FS CURTIS directly. ◎ Explanations of safety symbols Operation manual Follow the instructions before using this compressor.
  • Page 5 CAP881 Danger: Electric circuits Danger: Rotating parts Danger: Hot or noxious gas outlet: Not Breathable Danger: Heat. Do not touch hot areas Rotation - 5 -...
  • Page 6 Turn off power supply before maintenance or service around electric equipment, such as starter, and motor. Remove the 2 RED Shipping Brackets that secure the motor/airend to the base frame before test run or startup. Contact FSCURTIS or distributor for assistance if necessary. - 6 -...

  • Page 7: Safety

    CAP881 Safety 1. Become familiar with this manual and follow the instructions before operating the compressor. 2. If any malfunctions or trouble has occurred, do not run compressor until problem is resolved. 3. Make sure the compressor has been disconnected before servicing or changing parts.
  • Page 8 CAP881 Additional Safety information for Air Compressors Like all power tools, there is danger associated with operating this equipment. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this machine with extreme caution. If normal safety precautions are overlooked or ignored, serious personal injury may occur.

  • Page 9: Receiving And Installation

    CAP881 2.0 Receiving and Installation A. Receiving 1. Check that your shipment matches your order. 2. Check for any damage that may have occurred during shipment. B. Installation. In order to ensure proper installation and trouble free operation with minimal maintenance: 1.
  • Page 10 CAP881 C. Precaution for piping foundation and cooling system 1. Air piping (1). Install required accessories. (2). Main piping should have 1˚- 2˚ slope away from compressor to drain the condensate. (3). Pressure drop of piping must not exceed 5% of discharge pressure. Select larger piping than required for better efficiency.
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  • Page 19: Electrical

    Electric Code, state code, and any local codes in accordance with the wiring diagram specific to your compressor model shown in the included wire diagram. Chart of Unit Max Amp Draw (Motor SFA) Model 230 V 460 V SEG-5 Amp Draw 16.1 SEG-7.5 Amp Draw 21.6 10.8...
  • Page 20 CAP881 - 20 -...

  • Page 21: General

    CAP881 General Description COMPRESSOR The compressor assembly is an oil flooded positive displacement, single stage, helical screw type unit consisting of two rotors or screws supported axially by roller bearings and enclosed in a housing or stator as depicted in the sectional view Figure 3-1. Figure 3-1 Compressor Assembly In operation, as depicted below in the compression cycle (Ref.

  • Page 22: Air/Oil Flow

    CAP881 AIR/OIL FLOW Air enters the compressor through the air filter and air inlet valve where it is mixed with oil. After compression, the air/oil mixture is discharged into the oil receiver tank. The oil is removed as the air passes through the Air/Oil Separator element.

  • Page 23: System Flow Chart And Components Function - System Flow Chart

    CAP881 4.0 System flow diagram and components function A. System flow diagram and components function SEG-5 & 7.5 System Flow Diagram...
  • Page 24 CAP881 SEG-10 &15 System Flow Diagram...

  • Page 25: Description

    (2). Air Inlet Valve On/Off Load Control：for SEG-5/SEG-7.5/SEG-10/SEG-15 models The solenoid valve is switched by different capacity controls such as: start, stop, off load. Each will move the piston of the intake valve. The minimum pressure valve (MPV) keeps minimum pressure to maintain oil circulation.
  • Page 26 CAP881 2. Oil flow path (refer to the flow chart of each type) (1). Description of oil injection flow chart Pressure in the separator pushes oil into the oil cooler and then passes through the oil filter for filtration after being cooled down. Oil flow then goes into compression chamber from the bottom of air end and also goes to the bearing on the discharge side for lubrication.

  • Page 27: Protection / Warning

    CAP881 Protection and warning 1. Motor overload protection When the Amp draw exceeds the upper limit of the overload relay setting, the unit will shutdown automatically. Re-setting the unit is required prior to the next start. The relay limit has been set by the factory.
  • Page 28 CAP881 （6）Auto stop over time period If there is no demand for compressed air, the compressor runs in “off load” mode until it stops after a set time period and remains in Stand-by Mode. The compressor starts automatically to meet air demand.

  • Page 29: Controller Operating Panel

    CAP881 A. Controller Operating Panel LCD DISPLAY START STOP DOWN RETURN SHIFT/ENTER START Turns the compressor ON STOP Turns the compressor OFF. Compressor stops after preset idle time. Password menu access. After the parameters are modified, pressing this key confirms the change of parameter. UP-key scrolls to the next display, switches to the next menu or increases parameter value.

  • Page 30: Inspection

    CAP881 Operating Procedure A. Test run: start and stop 1. Connect power, ground cable, and check power supply. 2. Maintain oil level by keeping it visible in the sight glass by the oil fill port on the side of the airend. 3.

  • Page 31: Storage

    CAP881 D. Storage In some cases it may be necessary to store the compressor for an extended period of time before placing the unit in operation. When this is required do the following: 1. Cover and seal all machine openings to prevent moisture and dirt from entering the unit. 2.

  • Page 32: Maintenance

    CAP881 6.0 Maintenance 6.1 Maintenance Intervals...

  • Page 33: Air Filter / Oil Filter

    CAP881 6.2 Air Filter The air filter is the primary protection of the compressor from harmful dirt being ingested into the oil system. It needs to be inspected weekly for clogging or holes. The period for these inspections is dependent on the environment the machine is in (at least 2000 hours). Element Inspection and Replacement 1.

  • Page 34: Air/Oil Separator

    6.5 Service Kit Part Numbers Service Service Service Service Model 2000hr Kit 4000hr Kit 6000hr Kit 8000hr Kit SEG-5 & 7.5 VGB707 VGB708 VGB707 VGB709 SEG-10 & 15 VGB710 VGB711 VGB710 VGB712 2000/6000 hr Kit = Air Filter + Oil Filter...

  • Page 35: Lubricant

    CAP881 6.6 Lubricant Your compressor has been filled and tested with a high quality synthetic compressor lubricant. It has the advantage of extended service life, high temperature operation, and easy start-up when cold, reduced sludge and lacquer buildup, and is completely compatible with all seals, gaskets, and other compressor materials.

  • Page 36: Thermostatic & Minimum Pressure Valves

    CAP881 Checking Oil Level and Adding Compressor Oil 1. Turn off the unit; disconnect the power, and lockout and tagout to prevent accidental restarting. 2. Allow one minute after stopping the compressor for settling and the pressure to relieve. 3. Remove any dirt from around the fill cap, and then remove the fill cap. 4.

  • Page 37: Sheave

    Check the tension. The deflection should be about 1/64” per inch of span between the sheaves with about 4 pounds of force perpendicular to the belt. To change the belts: (SEG-5 thru SEG-15) 1. Turn off the unit; disconnect the power, and lockout and tagout to prevent accidental restarting.

  • Page 38: Fan / Motor

    CAP881 8. Return the unit to operation. 6.11 Fan Check the fan mounted to the main motor shaft for cracking, bent or loose blades. Make sure that it is securely mounted and tighten the mounting screws if loose. Replace a damaged fan immediately. 6.12 Motor The motor in the air compressor requires routine maintenance.

  • Page 39: Bearings

    CAP881 Greasing the bearings: Turn off the unit; disconnect the power, and lockout and tagout to prevent accidental restarting. 1. Clean grease fittings. 2. Remove the relief plug and free the hole of hardened grease. 3. Add grease with hand operated grease gun until it appears at the shaft hole in the end plate or the relief plug outlet.

  • Page 40: Troubleshooting

    CAP881 7.0 Troubleshooting Compressor will not start a. No power b. Fuses blown in the control circuit. c. Loose or missing wires or components in the control circuit. d. Incorrect voltage e.g. using 230 volt in a 460 volt system. e.
  • Page 41 CAP881 a. Pressure set too low Compressor will not load b. Inlet valve will not open. c. Faulty solenoid valve. Capacity (delivery) is below stated amount a. Restricted inlet air filter. b. Inlet valve partially closed. c. Air pressure set too high. d.
  • Page 42 CAP881 a. Elevated ambient temperature. High Temperature Shutdown b. Low sump oil level. c. Plugged oil filter. d. Restricted cooling airflow. e. Clogged heat exchanger. f. Thermal bypass is leaking g. Faulty high air temperature sensor. h. Delivery pressure set too high. i.

  • Page 43: Maintenance Log

    CAP881 8.0 Maintenance Log Model: _____________________ Serial Number: _____________________ Greased Checked Motor Fitting Hourmeter Cleaned Changed Bearings Tightness Date Reading Cooler Filter Oil Separator Filter...
  • Page 44 CAP881 NOTES...

This manual is also suitable for:

Seg-7.5Seg-15Seg-10

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