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Compressor Compact
Service Manual
E382 EH81E 061 01 03 02

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   Summary of Contents for Siemens E382 EH81E 061 01 03 02

  • Page 1

    Compressor Compact Service Manual E382 EH81E 061 01 03 02...

  • Page 2: Important

    Compressor Compact, and that only Siemens- supply connected and with the compressor cover Elema genuine spare parts should be used.

  • Page 3: Table Of Contents

    Compressor ........29 Thermoelectric cooler ......32 Water separator 2 ....... 33 Filter solenoid valves ......34 Pressure regulator ......35 Fan ............. 36 Compressed air reservoir ....37 Control section ........38 E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 4: Introduction

    The Compressor Compact can be equipped with a standby function. In the standby mode, the compressor will start to deliver compressed air if the hospital central gas supply fails. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 5: Main Units

    The Compressor Compact comprises five main units: • Compressor section • Cooling section • Dryer section • Air outlet section • Control section. Compressor section Control section Cooling section Dryer section Air outlet section E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 6: Basic Principles

    The temperature sensor detects the ambient air temperature inside the compressor section and activates the temperature alarm if the compressor section is overheated. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 7

    The cooling coil is cooled by the air stream forced through the cooling section by the fan in the dryer section. This air stream is then routed to the compressor section. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 8

    400 kPa (4.0 bar), will switch cause a flow which is fed back to the inlet of the compressor via the air inlet silencer. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 9

    Two dust switch switch filters remove dust particles from the ambient air before the air is drawn into the fan. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 10

    (medical grade air) is connected. The cooling air stream that has been forced through the cooling section and compressor section exits via the silenced cooling air outlet. Cooling air outlet Compressed Compressed air outlet air inlet Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 11

    The test button is used to check that the indicator lamps for temperature alarm and pressure alarm light up. The audible alarm (buzzer) is activated together with the indicator lamp during temperature alarm and pressure alarm. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 12: Description Of Functions

    June 1993 temperature at the sensor drops below are not equipped with this thermal switch. 55°C ±6°C (131°F ±11°F). The temperature alarm function is further described in section 5.6 TEMPERATURE ALARM LAMP. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 13

    60 Hz motor and 1 : 2.3 for the 50 Hz motor. The tension of the drive belt is automatically adjusted by the belt tightener. The drive belt must be replaced at the 8000 hour overhaul. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 14: Cooling Section

    3.2 WATER SEPARATOR 2 which is connected to the outlet of the thermoelectric cooler. The warm side of the Peltier element is cooled by the air stream provided by the 3.14 FAN. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 15

    Compressor Compact with Serial No.: 20498 – 20530. The PC board RCD must not be installed in these units as long as the spark arrestor with components mounted onto the cables is installed. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 16

    The standby solenoid valve is controlled by the 3.8 STANDBY PRESSURE SWITCH via the 5.3 ELECTRICAL CONTROL FUNCTIONS. The standby function is further described in section 5.7 STANDBY LAMP. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 17

    The main parts in the ELECTRIC POWER mentioned in the description of 3.12 FUSES SUPPLY block are the: are located in this terminal block. • Transformer • Rectifier with capacitor • Start relay (compressors with standby function). E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 18

    (Type No. and Manufacturer). If the compressor is connected to mains power, there is live voltage at the mains power fuses even when the on/off switch is in OFF (0) position. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 19: Air Outlet Section

    Compressor Compact. It provides a simulated load that permits rapid, easy checks of the output pressure. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 20: Control Section

    The temperature alarm is deactivated at a • Standby functions including RL1 and RL3. temperature below 55°C ±6°C (131°F ±11°F). The test button, the indicator lamps and the buzzer are mounted on this PC board. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 21

    – The 3.6 STANDBY SOLENOID VALVE is automatically set to supply compressed air from the compressor to the 4.1 COM- PRESSED AIR RESERVOIR – The STANDBY LAMP goes off. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 22: Disassembling And Assembling

    Detailed information can be found in the Spare Parts List. Old locking and sealing compound must be removed and the threads must be cleaned before any new compound is applied. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 23: Compressor Covers

    • The front cover (1) is secured with two screws (2). Rear cover • The rear cover (3) is secured with four screws (4). Casing • The casing (5) is secured with four screws (6). E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 24: Transport Safety Locks

    Compressor Compact. To refit the transport safety locks • The procedure for refitting the transport safety locks is the reverse of the disassembling procedure previously described. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 25: Internal Tubing

    • Pull the tube to make sure that it is secured to the coupling. Mains power cable If the mains power cable is replaced, the three conductors must be strapped together close to their connecting points at the terminal block. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 26: Compressor/motor Unit

    • Remove the four nuts (6) and lift off the compressor/motor unit. To refit the compressor/motor unit • The procedure for refitting the compressor/ motor unit is the reverse of the removal procedure previously described. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 27: Drive Belt

    The belt tightener must be pre-tensioned manually while the screw (1) is fitted. Use a 23 mm open-end wrench to position the belt tightener’s square socket (4) while fitting the screw. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 28: Belt Pulleys

    (1) loosely. Use a straight edge ruler (3) to check that the two belt pulleys align. • Tighten the screws (1) gradually and alternately. • Refit the drive belt and the compressor/ motor unit. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 29: Compressor

    (14) • From the piston, remove the: – Piston rings (15 and 17)* – Piston seals (16 and 18)* – Rider ring (19)*. *) Included in the 8000 hour maintenance kit. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 30

    – Check that the face of the piston is exactly aligned with the outer edge of the cylinder. – Tighten the cylinder screws (13) to a torque of approx. 18 Nm ±0.5 Nm (165 lbf in ±5 lbf in). Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 31

    10.5 Nm ±0.5 Nm (95 lbf in ±5 lbf in). Retighten the screws to the above setting after the compressor has been in operation for about ten minutes. COMP024X E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 32: Thermoelectric Cooler

    The cables to the temperature switch (4) must be connected via the RCD circuit board (7) with correct polarity. Refer to the Connection diagrams. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 33: Water Separator 2

    • Use a 14 mm open-end wrench to unscrew the water separator housing (7). To refit water separator 2 • The procedure for refitting water separator 2 is the reverse of the removal procedure previously described. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 34: Filter Solenoid Valves

    (5) and the plastic rings (6) must be replaced at the 8000 hour overhaul. To refit the filter/solenoid valves • The procedure for refitting the filter/ solenoid valves is the reverse of the removal procedure previously described. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 35: Pressure Regulator

    To refit the pressure regulator • The procedure for refitting the pressure regulator is the reverse of the removal procedure previously described. • Adjust the pressure regulator as described in the chapter Adjustments, section Pressure regulator. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 36: Fan

    • On older versions of Compressor Compact: – If rivets are used insted of the screws (2), insert new rivets with a hand riveter. – Do not insert the screw (5) when refitting the fan. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 37: Compressed Air Reservoir

    • Remove the three clamps (4). • Lift off the complete air reservoir (5). To refit the air reservoir • The procedure for refitting the air reservoir is the reverse of the removal procedure previously described. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 38: Control Section

    • The procedure for assembling the control section is the reverse of the disassembling procedure previously described. COMP034X COMP035X After any service intervention in the Compressor Compact, perform a Functional check according to instructions in the Operating Manual. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 39: Adjustments

    • Close and secure the compressor’s front cover. After any service intervention in the Compressor Compact, perform a Functional check according to instructions in the Operating Manual. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 40: Maintenance

    Compressor Compact is disassembled. Before any compressor cover or the front panel is opened or removed, make sure that the mains power supply is disconnected and that the compressed air reservoir is depressurized. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 41: Performing The 2000 Hour Overhaul

    3. Replace the filter located in the compressor inlet filter housing. 4. Close and secure the compressor's front cover. 5. Perform a functional check. See instructions in the Operating Manual, chapter Functional check. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 42: Performing The 8000 Hour Overhaul

    8. Adjust the pressure regulator as described in the chapter Adjustments. 9. Perform a functional check. See instructions in the Operating Manual, chapter Functional check. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 43: Troubleshooting

    • Inspect the internal compressed air tubing. Clear obstructions, tighten loose connec- tors and/or replace faulty components. • Check the operation of the compressor. Overhaul or replace it if necessary. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 44

    – Make sure that the voltage to the cooler switches between approx. 0 V and 12 V. Normal switch cycle is approx. 1 min when no compressed air is consumed. Replace the cooler if necessary. Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 45

    Adjustments. If the operating pressure cannot be adjusted, replace the pressure regulator. • Check the manometer and replace it if necessary. • Check the operation of the compressor. Overhaul or exchange it if necessary. E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 46

    Check the function of the cooler temp. switch as previously described. Replace the thermoelectric cooler if necessary. The operating time meter does not run when • Replace the operating time meter. the Compressor Compact is in operation: Siemens-Elema AB E382 EH81E 061 01 03 02...

  • Page 47: Index

    Temperature sensor Electrical interconnection Test button 11 20 Thermoelectric cooler 14 32 Transport safety locks 18 36 Filter/solenoid valves 15 34 Fuses Water separator 1 Water separator 2 15 33 Heat convector E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 48: Circuit And Connection Diagrams

    ELECTRICAL CONTROL FUNCTIONS ON / OFF SWITCH 1 2 3 COOLER TEMP. SWITCH (THERMOSTAT) MAINS 12 V POWER TEMP. INLET SENSOR PRESSURE SWITCH THERMO- OPERATING COMPRESSOR FILTER / ELECTRIC TIME METER MOTOR SOLENOID VALVES COOLER...

  • Page 49

    ON / OFF SWITCH CONTROL ELECTRICAL CONTROL FUNCTIONS SECTION 8 10 2 In this manual, the DIN IEC 757-standard is used when describing lead colours; BK = Black BN = Brown RD = Red OG = Orange YE = Yellow GN = Green BU = Blue VT = Violet...

  • Page 50: With Standby Function

    ELECTRICAL CONTROL FUNCTIONS 2 3 5 1 ON / OFF SWITCH COOLER 1 2 3 4 TEMP. SWITCH (THERMOSTAT) – 12 V MAINS POWER TEMP. INLET SENSOR PRESSURE SWITCH STANDBY PRESSURE SWITCH OPERATING COMPRESSOR FILTER / THERMO- START STANDBY RELAY TIME METER MOTOR SOLENOID...

  • Page 51: Block Diagram

    ON / OFF SWITCH CONTROL ELECTRICAL CONTROL FUNCTIONS SECTION 8 10 2 WHRD WHRD In this manual, the DIN IEC 757-standard is used when describing lead colours; BK = Black BN = Brown RD = Red OG = Orange YE = Yellow GN = Green BU = Blue VT = Violet...

  • Page 52

    AIR INLET PRESS. MANO- METER 4.6 COOLING AIR OUTLET 4.4 COMPRESSED 4.1 COMPRESSED AIR RESERVOIR 4.3 MOISTURE AIR OUTLET RELIEF VALVE 4. AIR OUTLET SECTION Siemens-Elema AB E382 EH81E 061 01 03 02 E382 EH81E 061 01 03 02 Siemens-Elema AB...

  • Page 53

    E382 EH81E 061 01 03 02 Order No.: 60 27 044 EH81E © Siemens-Elema AB, Electromedical Systems Division, 1993-1999. All rights reserved. No part of this publication Printed in Sweden. may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, TK 81 TU 0699 0.7...

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Compressor compact

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