Atlas Copco ZT 55 Instruction Book
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Atlas Copco ZT 55 Instruction Book

Atlas Copco ZT 55 Instruction Book

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CustomDesign Oil-free Air
Project: 998935
Customer: AIR SEP, USA
ZT 55
Instruction book

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  • Page 1 CustomDesign Oil-free Air Project: 998935 Customer: AIR SEP, USA ZT 55 Instruction book...
  • Page 3 Atlas Copco CustomDesign Oil-free Air Project: 998935 Customer: AIR SEP, USA ZT 55 Instruction book Original instructions Copyright Notice Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.

  • Page 4: Table Of Contents

    Instruction book Table of contents Safety precautions......................5 ...........................5 AFETY ICONS ......................5 AFETY PRECAUTIONS GENERAL ...................5 AFETY PRECAUTIONS DURING INSTALLATION ....................7 AFETY PRECAUTIONS DURING OPERATION ................8 AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR General description......................10 ..........................10 NTRODUCTION ............................13 IR FLOW ......................14 ONDENSATE DRAIN SYSTEM ............................17 IL SYSTEM ..........................18...
  • Page 5 Instruction book 3.12 .............................37 EST MENU 3.13 .......................38 ODIFY PARAMETERS MENU 3.14 ........................38 ODIFYING PARAMETERS 3.15 ......................39 ODIFYING PROTECTION SETTINGS 3.16 ........................40 ODIFYING SERVICE PLANS 3.17 ......................41 ROGRAMMING CLOCK FUNCTION 3.18 ....................45 ODIFYING CONFIGURATION SETTINGS 3.19 ..........................47 ERVICE MENU 3.20 ...........................49 AVED DATA MENU 3.21...
  • Page 6 Instruction book ..........................73 ERVICE KITS ........................73 ERVICE AGREEMENTS ..........................73 ERVICE PLAN ..........................73 OTOR GREASING ..........................74 IL SPECIFICATIONS ......................75 TORAGE AFTER INSTALLATION Servicing procedures....................76 (AF)..........................76 IR FILTER .......................77 IL AND OIL FILTER CHANGE ..........................78 AFETY VALVES Problem solving......................79 ........................79 AULTS AND REMEDIES Principal data........................81 ........................81 EADINGS ON DISPLAY...

  • Page 7: Safety Precautions

    Instruction book Safety precautions Safety icons Explanation Danger for life Warning Important note Safety precautions, general General precautions 1. The operator must employ safe working practices and observe all related work safety requirements and regulations. 2. If any of the following statements does not comply with the applicable legislation, the stricter of the two shall apply.
  • Page 8 Instruction book Precautions during installation 1. The machine must only be lifted using suitable equipment in accordance with the applicable safety regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to dwell or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be kept within safe limits.

  • Page 9: Safety Precautions During Operation

    Instruction book Safety precautions during operation All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer.

  • Page 10: Safety Precautions During Maintenance Or Repair

    Instruction book Safety precautions during maintenance or repair All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer.
  • Page 11 Instruction book • Always wear special gloves. In case of refrigerant contact with the skin, rinse the skin with water. If liquid refrigerant contacts the skin through clothing, never tear off or remove the latter; flush abundantly with fresh water over the clothing until all refrigerant is flushed away; then seek medical first aid.

  • Page 12: General Description

    General description Introduction Description This unit is a two-stage screw compressor driven by an electric motor. The compressor delivers oil-free, pulsation-free air. ZT compressors are air-cooled. Views of ZT General view of ZT 55 up to ZT 90 Pack APFS998935v00...
  • Page 13 Instruction book General view Rear view APFS998935v00...
  • Page 14 Instruction book Main components Name Air filter By-pass valve, oil cooler Pre-aftercooler Aftercooler Intercooler Oil cooler High-pressure compressor element Low-pressure compressor element EWDa Electronic water drain, aftercooler EWDi Electronic water drain, intercooler Oil filler cap Cooling fan Drive motor Fan motor Moisture trap, intercooler High-pressure safety valve Low-pressure safety valve...

  • Page 15: Air Flow

    Instruction book Air flow Flow diagram, ZT Name Air inlet Air flow Oil flow Air outlet APFS998935v00...

  • Page 16: Condensate Drain System

    Instruction book Air flow Air drawn through filter (AF) is compressed in low-pressure compressor element (El) and discharged to intercooler (Ci). The cooled air is further compressed in high-pressure compressor element (Eh) and discharged through silencer (AS) and aftercoolers. A check valve (CV) is provided downstream of the silencer. The compressed air leaves the compressor via the air outlet.
  • Page 17 Instruction book Explanation of arrows Name Air inlet Air flow Oil flow Air outlet Description Two condensate traps are installed: one downstream of the intercooler (MTi) to prevent condensate from entering compressor element (Eh) and one downstream of the aftercooler (MTa) to prevent condensate from entering the air outlet pipe.
  • Page 18 Instruction book Testing the Electronic water drain Functional test Briefly press the TEST button and check that the valve opens for condensate discharge. Checking the alarm signal • Press the test button for at least 1 minute. • Check that the alarm LED flashes. •...

  • Page 19: Oil System

    Instruction book Oil system Flow diagram, ZT Explanation of arrows Name Air inlet Air flow Oil flow Air outlet APFS998935v00...

  • Page 20: Cooling System

    Instruction book Oil system On ZT compressors, oil is circulated by pump (OP) from the sump of the gear casing to cooler (Co). Then, the oil flows through the cooling jackets of compressor elements (El and Eh). From there, the oil flows through filter (OF) towards the bearings and timing gears.

  • Page 21: Energy Recovery

    Instruction book Explanation of arrows Name Air inlet Air flow Oil flow Air outlet Cooling system, ZT compressors The compressors are provided with an air-cooled oil cooler (Co), intercooler (Ci), pre-aftercooler (Ca1) and aftercooler (Ca2). An electric motor-driven fan (FN) generates the cooling air. Energy recovery General The system recovers the major part of the compression heat.
  • Page 22 Pump unit Atlas Copco supplies pump units to transfer the energy recovered from the compressor to the heat consumer (HC). The pump unit constitutes a closed water circuit with the compressor cooling system.
  • Page 23 In case the compressors operate in high ambient temperatures and with high water inlet temperatures, the maximum working pressure is 0.5 bar (7.25 psi) lower than for standard compressors. Consult the Atlas Copco Customer Centre.

  • Page 24: Electrical System

    Instruction book Electrical system Main components The electrical system mainly includes: • Elektronikon® regulator • Emergency stop button (S2) • Electric cabinet • Drive motor (M1) • Pressure and temperature sensors Elektronikon regulator (1) and emergency stop button (S2) Electric cabinet Typical example APFS998935v00...
  • Page 25 Instruction book Typical example Drive motor (M1) APFS998935v00...

  • Page 26: Elektronikon Regulator

    Instruction book Elektronikon regulator ® Elektronikon regulator Control panel Introduction In general, the Elektronikon regulator has following functions: • Controlling the compressor • Protecting the compressor • Monitoring components subject to service • Automatic restart after voltage failure (made inactive) Automatic control of compressor operation The regulator maintains the net pressure between programmable limits by automatically loading and unloading the compressor.
  • Page 27 The regulator has a built-in function to automatically restart the compressor if the voltage is restored after voltage failure. For compressors leaving the factory, this function is made inactive. If desired, the function can be activated. Consult the Atlas Copco Customer Centre. If activated and provided the regulator was in the automatic operation mode, the compressor will automatically restart if the supply voltage to the module is restored within a programmed time period.

  • Page 28: Control Panel

    Instruction book Control panel Elektronikon regulator Control panel Parts and functions Reference Designation Function Start button Button to start the compressor. LED (8) lights up indicating that the Elektronikon regulator is operative. Display Shows messages about the compressor operating condition, a service need or a fault. Scroll keys Keys to scroll upwards or downwards through the display.

  • Page 29: Function Keys

    To return to a previously shown option or menu “Cancel” To cancel a programmed setting when programming parameters “Delete” To delete compressor start/stop commands “Help” To find the Atlas Copco internet address “Limits” To show limits for a programmable setting “Load” To load the compressor manually “Mainscreen”...

  • Page 30: Scroll Keys

    Instruction book Scroll keys Control panel The keys (1) allow the operator to scroll through the display. As long as a downwards pointing arrow is shown at the utmost right position of the display, the scroll key with the same symbol can be used to see the next item. As long as an upwards pointing arrow is shown at the utmost right position of the display, the scroll key with the same symbol can be used to see the previous item.

  • Page 31: Control Programs

    Instruction book Before starting any maintenance or repairs, wait until the compressor has stopped and open the isolating switch (customer's installation) to switch off the voltage to the compressor. Close the air outlet valve and open the manual condensate drain valves to depressurize the air system.
  • Page 32 Instruction book Menu flow for ZR/ZT 55 up to ZR/ZT 90 (simplified) Main menu Program Function Main screen Shows in short the operation status of the compressor. Is the gateway to all functions. “Status data” Calls up the status of the compressor protection functions (shut-down, shut-down warning, service warning and warning).

  • Page 33: Calling Up Menus

    Loads and unloads the compressor manually. Calling up menus Description Control panel When the voltage is switched on, the Main screen is shown automatically. Example of Main screen of ZR/ZT 55 up to ZR/ZT 90 “Compressor Outlet” 7.5 bar “Automatically Loaded” “Menu”...

  • Page 34: Main Screen Menu

    If the function or arrow keys (1, 2 and 3) are not used for some minutes, the regulator will automatically return to the Main screen. Whenever displayed on a submenu screen, press the “Mainscreen” (F1) key to return to the Main screen. Example of Main screen of ZR/ZT 55 up to ZR/ZT 90 “Compressor Outlet” 7.5 bar “Automatically Loaded”...

  • Page 35: Status Data Menu

    Instruction book Status data menu Warning Before starting any maintenance or repairs, press the stop button (4), wait until the compressor has stopped, press the red emergency stop button and open the isolating switch (customer's installation) to switch off the voltage to the compressor. Close the air outlet valve and depressurize the air system.
  • Page 36 Instruction book A shut-down message exists • In case the compressor is shut down, LED (1) will blink. • In case of a shut-down due to too high a temperature at the outlet of the compressor element: “Element Outlet” 114˚C “Shutdown”...

  • Page 37: Measured Data Menu

    “Status Data” menu to “Inputs” and press the “Reset” key to reset the service message. • In case the service message was referring to “Plan”: carry out the service actions related to the indicated plans. Reset the timers of the related plans. Contact your Atlas Copco Customer Centre. See Service menu.

  • Page 38: Counters Menu

    Instruction book Function To call up information regarding the actually measured data and the status of some inputs such as the motor overload protection. Consult the menu flow in section Control programs. Procedure Starting from the Main screen (see Main screen menu): •...

  • Page 39: Test Menu

    Instruction book Example of a Counters screen “Running Hours” 2455 “hrs” “Loaded Hours” 1973 “hrs” “Motor Starts” “Menu” 3.12 Test menu Control panel Function To carry out a display test, i.e. to check whether the display and LEDs are still intact. Procedure •...

  • Page 40: Modify Parameters Menu

    Instruction book 3.13 Modify parameters menu Function To modify a number of programmable settings: • Parameters (see section Modifying parameters). • Protections (see section Modifying protections). • Service plan settings (see section Modifying service plan settings). • Clock function settings (see section Modifying clock function settings).

  • Page 41: Modifying Protection Settings

    Instruction book • The screen shows the current setting. To modify this setting, press the key “Modify” (F2); the setting will blink. • The key “Limits” (F2) can be used to find out the limitations for the parameter. • Use the scroll keys (1) to change the setting. •...

  • Page 42: Modifying Service Plans

    Service plans are to be carried out. Always consult your Atlas Copco Customer Centre in case any timer should be changed. The intervals must not exceed the programmed nominal values.

  • Page 43: Programming Clock Function

    Instruction book 3.17 Programming clock function Control panel Function To program: • Time-based start/stop commands for the compressor • Time-based change-over commands for the net pressure band Programming start, stop and pressure band commands In this example, the compressor will be programmed as follows: •...
  • Page 44 Instruction book “Monday” “Tuesday” “Wednesday” “Menu” “Delete” • Use the scroll keys (1) until the day on which a command must be programmed is followed by a horizontal arrow. Press the tabulator key (2); following screen appears: --:-- ---------------------- --:-- ---------------------- --:-- ----------------------...
  • Page 45 Instruction book “Clock Function” “Not Activated” “Menu” “Modify” “Delete” • Press the key “Modify”, “Not Activated” starts blinking. • Press the arrow down key (1) “Not Activated” changes to “Activated”. • Press the key “Program”. It is necessary to program the start/stop commands in successive order timewise. Program the commands from Monday till Sunday, e.g.: •...
  • Page 46 Instruction book arrow. Press the key “Modify”, the first two digits of the command start blinking. Modify as required using the scroll keys, i.e. in the example above change “18” into “17” using the arrow up key (1). • If necessary, press the tabulator key (2) to go to the next field to be modified, the minutes indication and the start/stop/pressure band indication.

  • Page 47: Modifying Configuration Settings

    Instruction book Press the arrow down key and add the last command of the list (in the example above “18:00 Stop Compressor” and press the key “Program”. Deleting a command • Starting from the Main screen, press the key “Menu” (F1), press the arrow down key until the option “Modify Parameters”...
  • Page 48 Instruction book Function To modify a number of parameters. Consult the menu flow in section Control programs. Procedure Starting from the Main screen (see Main screen menu): • Press the key “Menu” (F1). • Press the arrow down key (1) until “Modify Parameters” is followed by an arrow pointing to the right. •...

  • Page 49: Service Menu

    Instruction book 3.19 Service menu Control panel Function • To reset the service plans which are carried out. • To check when the next service plans are to be carried out. • To find out which service plans were carried out previously. Service plans A number of service operations are grouped (called Level A, Level B, etc...).
  • Page 50 Instruction book Procedure Starting from the Main screen (see Main screen menu): • Press the key “Menu” (F1). • Press the arrow down key (1) until “Service” is followed by a horizontal arrow. • Activate the menu by pressing tabulator key (2). •...

  • Page 51: Saved Data Menu

    Instruction book 3.20 Saved data menu Control panel Function To call up some data saved by the regulator. These data are: • Last shut-down data • Last emergency stop data Procedure Starting from the Main screen (see Main screen menu): •...
  • Page 52 Instruction book Minimum Factory Maximum setting setting setting Restart delay Communication time-out Unloading pressure bar(e) 7.25 Unloading pressure psig 101.5 105.2 Loading pressure bar(e) 7.25 Loading pressure psig 94.3 105.2 Protections Minimum Factory Maximum setting setting setting Oil pressure (shut-down warning level) bar(e) Oil pressure (shut-down warning level) psig...
  • Page 53 See remark Remark A number of service operations are grouped (Level A, Level B, ...). Each level stands for a number of service operations to be carried out at the intervals programmed. Consult your Atlas Copco Service Centre. Terminology Term...
  • Page 54 The recommended minimum pressure difference between loading and unloading is 9 psig. Delay at shut- Is the period during which the signal must exist before the compressor is shut down. If it down signal should be required to program this setting at another value, consult Atlas Copco. APFS998935v00...

  • Page 55: Installation

    Instruction book Installation Dimension drawings Dimension drawing, ZT Pack APFS998935v00...
  • Page 56 Instruction book Text on drawing Name Voltage supply entry Compressed air outlet Cooling air outlet Opening for transportation 4 slotted holes only for horizontally pulling unit out of container Cooling air inlet Hole pattern ducting Automatic drain, aftercooler Automatic drain, intercooler (10) Compressed air outlet, compensator (11)

  • Page 57: Installation Proposals

    Instruction book Installation proposals Installation proposal, ZT Pack APFS998935v00...
  • Page 58 Instruction book Text on figures Name Minimum free area to be reserved Ventilation proposal Cooling air outlet Cooling air inlet Description Description Install the compressor on a level floor suitable for taking the weight of the compressor. Recommended minimum distance between the top of the bodywork and the ceiling: 1200 mm (46.80 in).

  • Page 59: Electric Cables

    Instruction book Electric cables Remarks • The cable sizes below are applicable for the MAINS + EARTH CABLE • The cable size is valid at maximum ambient temperature of 40 ˚C. The cable size is valid at maximum ambient temperature of 104 ˚F. 60Hz IEC Pack compressors 380 V...
  • Page 60 Instruction book Typical example Name F3/4 Circuit breakers, control circuit Circuit breaker for electronically controlled automatic condensate drains Overload relay, drive motor Auxiliary relay, loading Line contactor Star contactor Delta contactor Circuit breaker Main transformer Transformer, control circuit Power supply terminals 1X4/5/6/7 Terminal strips APFS998935v00...
  • Page 61 Instruction book Electric diagram Diagram for Pack and Full-Feature compressors with YD starter Name Customer's installation Compressor motor Thermistor protection Motor heater Fan motor, external dryer. Only for ZT compressors. Only for ZT 200-230V Only for ZT 380-575V Terminals only for ABB contactor types <145 If 3 fuses prescribed (10) If 6 fuses prescribed...

  • Page 62: Pictographs

    Instruction book Name (15) To be installed by the customer Pictographs Explanation of pictographs Name Start Scroll keys Tabulator key APFS998935v00...
  • Page 63 Instruction book Name Voltage on Alarm Automatic operation Stop Automatic condensate outlet, intercooler Automatic condensate outlet, aftercooler Warning: under tension Read Instruction book before starting the compressor Switch off the voltage and depressurize the compressor before maintenance or repair Before connecting the compressor electrically, consult the Instruction book for the motor rotation direction Torques for steel (Fe) or brass (CuZn) bolts Consult the Instruction book before greasing...

  • Page 64: Operating Instructions

    Instruction book Operating instructions Operation introduction Warning The operator must apply all relevant “Safety precautions”. Ambient conditions Consult “Limits” for the limits with regard to the ambient conditions and altitude operation. Moving/lifting In order not to damage the frame, the compressor must be moved either by a lift truck or by using lifting equipment as described below.
  • Page 65 Instruction book • On ZT compressors, remove bolts (1) and supports (2) immobilizing the vibration dampers of the coolers. Remove support (3), immobilizing the vibration dampers of the gear casing. APFS998935v00...
  • Page 66 Instruction book • Remove flange (1) and take out the silica gel bags installed in the intercooler at the condensate drain receiver side. Refit the flange. Position of silica gel bags on ZT compressors • Check that the gear casing is filled with oil: the level should be in the middle of sight-glass (SG). APFS998935v00...
  • Page 67 Instruction book • Check that the electrical connections correspond to the local codes. The installation must be earthed and protected by fuses in all phases. An isolating switch must be provided. • Check the connections at the primary sides of transformers (T1 and T2). Typical example APFS998935v00...
  • Page 68 Instruction book Typical example • Switch on the voltage. Start the compressor and stop it immediately. Check for correct direction of rotation while the motor is coasting to a stop. An arrow on the gear casing indicates the correct rotation direction. If the rotation direction is wrong, switch off the voltage and reverse two incoming electric lines.

  • Page 69: Before Starting

    Instruction book Before starting Safety The operator must apply all related “Safety precautions”. Procedure Step Action Check the oil level, which must be in the middle of sight-glass (SG). Top up, if necessary, with the correct type of oil. Position of oil sight-glass on ZT compressors APFS998935v00...

  • Page 70: Starting

    Instruction book Starting Control panel Procedure Step Action Open the air outlet valve (customer's installation). Switch on the voltage and check that voltage on LED (2) lights up. Press start button (1). The compressor starts running and automatic operation LED (3) lights up.

  • Page 71: During Operation

    The display will show a service message if a service plan interval has been exceeded or if a service level for a monitored component has been exceeded. Carry out the service actions of the indicated plans or replace the component and reset the relevant timer. Consult your Atlas Copco Customer Centre. See also “Preventive maintenance schedule”.

  • Page 72: Stopping

    Instruction book Example of the main screen Compressor Outlet 7.0 bar Automatically Loaded Menu Unload Stopping Control panel Procedure Frequently stopping the compressor using the emergency stop button may damage the compressor, only use the emergency stop button in case of emergency. Step Action Press the test button on top of the electronic water drains while the compressor is running...

  • Page 73: Taking Out Of Operation

    Instruction book Taking out of operation Procedure Step Action Close the air outlet valve and stop the compressor. Switch off the voltage. Disconnect the compressor from the mains. Shut off and depressurise the part of the air net which is connected to the outlet valve. Disconnect the compressor air outlet pipe from the air net.

  • Page 74: Maintenance

    Open the isolating switch (customer's installation) to switch off the voltage to the compressor. Warranty-Product Liability Use only Atlas Copco authorized genuine parts. Any damage or malfunction caused by the use of unauthorized parts is not covered by Warranty or Product Liability. Preventive maintenance schedule...

  • Page 75: Service Kits

    Service kits Service kits Atlas Copco Customer Centres will be glad to provide you with a wide range of service kits. Service kits comprise all parts needed for servicing components and offer the benefits of genuine Atlas Copco parts while keeping the maintenance budget low.

  • Page 76: Oil Specifications

    Oil specifications Oil type Use Atlas Copco Roto-Z oil which has been specially developed for oil-free rotary compressors. This oil has a long service life and ensures optimum lubrication. Never mix oils of different brands or types.

  • Page 77: Storage After Installation

    45.98 Imp gal drum 7.32 cu.ft drum Storage after installation Run the compressor, e.g. twice a week, until warm. If the compressor is going to be stored without running from time to time, protective measures must be taken. Consult Atlas Copco. APFS998935v00...

  • Page 78: Servicing Procedures

    Instruction book Servicing procedures Air filter (AF) Location of the air filter on ZT compressors Procedure Step Action Stop the compressor and switch off the voltage to the compressor. Remove the filter. Fit the new filter. After carrying out the service actions of the related service plan, the service warning must be reset.

  • Page 79: Oil And Oil Filter Change

    Instruction book Oil and oil filter change Control panel Oil system components, ZT Procedure Step Action Run the compressor until warm. Press stop button (1), wait until the compressor has stopped, press emergency stop button (S2) and switch off the voltage to the compressor. Remove filler plug (FC).

  • Page 80: Safety Valves

    Safety valves Testing The valves can be tested on a separate compressed air line. If a valve does not open at the pressure specified “Settings of safety valves”, consult Atlas Copco. • Never run the compressor without safety valves. •...

  • Page 81: Problem Solving

    Condensate is not discharged Discharge flexible clogged Check and correct as necessary from condensate traps during operation Electronic water drain Consult Atlas Copco malfunctioning LED's of electronic water drain do Compressor is running unloaded LED's will light up when the not light up compressor is loaded again.
  • Page 82 Instruction book Condition Fault Remedy Condensate only discharged Sensor dirty Clean sensor when test button is pressed Air pressure below minimum Increase air pressure pressure EWD continuously discharges air Control air blocked Check and correct as necessary Sensor dirty Clean sensor APFS998935v00...

  • Page 83: Principal Data

    Instruction book Principal data Readings on display Display Reference Unit Reading Outlet pressure bar(e) Depends on pressure setpoint. Maximum working pressure bar(e) “Compressor data”. Settings of safety valves Settings Reference Value Value Low-pressure safety valve 3.7 bar(e) 54 psig High-pressure safety valve, ZT/ZR55/75 7.25 bar/105 psi 9.3 bar(e) 135 psig and ZT/ZR 7.5 bar/109 psi...

  • Page 84: Reference Conditions

    Instruction book Voltage Fuses Type Pack and Full-Feature 380 V Location of components “Electrical system” for location of components. Reference conditions Reference Unit Value Absolute inlet pressure bar(a) Absolute inlet pressure 14.50 Relative air humidity Air inlet temperature ˚C Air inlet temperature ˚F Cooling water inlet temperature ˚C...
  • Page 85 Instruction book Unit ZT55 Maximum working pressure, ZT Full- Feature Maximum working pressure, ZT Full- 101.53 Feature Power input at maximum working pressure, 70.1 ZT Pack Power input at maximum working pressure, 94.01 ZT Pack Power input at maximum working pressure, 71.0 ZT Full-Feature Power input at maximum working pressure,...

  • Page 86: Pressure Equipment Directives

    Pressure equipment directives PED instructions ZR/ZT 55 Pack up to ZR/ZT 90 Pack are pressure assemblies of cat. I according to 97/23/EC. Parts of article 3.3 of 97/23/EC are subject to good engineering practice. Parts of category I according to 97/23/EC are integrated into the machine and fall under the exclusion of article I, section 3.6.

  • Page 87: Documentation

    Instruction book Documentation Declaration of conformity Typical example of a Declaration of Conformity document APFS998935v00...
  • Page 90 Not for the sake of technology, but for the sake of our customer’s bottom line and peace-of-mind. That is how Atlas Copco will strive to remain the first choice, to succeed in attracting new business and to maintain our position as the industry leader.

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