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Oil-injected rotary screw compressors

People. Passion. Performance.

QRS 10, QRS 15, QRSM 20

Instruction book

Содержание QRS 10

Страница 1: ...Oil injected rotary screw compressors People Passion Performance QRS 10 QRS 15 QRSM 20 Instruction book ...

Страница 2: ......

Страница 3: ...use or copying of the contents or any part thereof is prohibited This applies in particular to trademarks model denominations part numbers and drawings This instruction book is valid for CE as well as non CE labelled machines It meets the requirements for instructions specified by the applicable European directives as identified in the Declaration of Conformity 2017 03 No 2920 7114 70 www cp com ...

Страница 4: ... 2 1 INTRODUCTION 11 2 2 AIR FLOW 14 2 3 OIL SYSTEM 16 2 4 COOLING SYSTEM 17 2 5 REGULATING SYSTEM 18 2 6 CONTROL PANEL 19 2 7 ELECTRICAL SYSTEM 20 2 8 PROTECTION OF THE COMPRESSOR 23 2 9 AIR DRYER 24 3 Controller 25 3 1 CONTROLLER 25 3 2 CONTROL PANEL 26 3 3 ICONS USED ON THE DISPLAY 27 3 4 MAIN SCREEN 28 3 5 MAIN FUNCTION 29 3 6 SHUTDOWN WARNING 31 3 7 SHUTDOWN 32 3 8 SERVICE WARNING 34 3 9 SCRO...

Страница 5: ... TEMPERATURE 41 3 19 CALLING UP MODIFYING THE UNIT OF PRESSURE 42 3 20 CALLING UP MODIFYING BACKLIGHT TIME 42 3 21 ACTIVATING AUTOMATIC RESTART AFTER VOLTAGE FAILURE 42 3 22 KEYBOARD LOCK 43 4 Installation 44 4 1 INSTALLATION PROPOSAL 44 4 2 DIMENSION DRAWINGS 47 4 3 ELECTRICAL CONNECTIONS 48 4 4 PICTOGRAPHS 51 5 Operating instructions 53 5 1 INITIAL START UP 53 5 2 STARTING 56 5 3 STOPPING 58 5 4...

Страница 6: ...66 7 1 AIR FILTER 66 7 2 COOLERS 67 7 3 SAFETY VALVE 67 7 4 BELT SET EXCHANGE AND TENSIONING 69 8 Problem solving 72 9 Technical data 76 9 1 ELECTRIC CABLE SIZE 76 9 2 SETTINGS FOR OVERLOAD RELAY AND FUSES 76 9 3 REFERENCE CONDITIONS AND LIMITATIONS 77 9 4 COMPRESSOR DATA 77 10 Instructions for use 80 11 Guidelines for inspection 81 Instruction book 4 2920 7114 70 ...

Страница 7: ... the voltage Depressurize the machine Lock Out Tag Out LOTO Open the power isolating switch and lock it with a personal lock Tag the power isolating switch with the name of the service technician On units powered by a frequency converter wait 10 minutes before starting any electrical repair Never rely on indicator lamps or electrical door locks before maintenance work always disconnect and check w...

Страница 8: ...ccant bags must be removed before connecting the pipes 5 Air hoses must be of correct size and suitable for the working pressure Never use frayed damaged or worn hoses Distribution pipes and connections must be of the correct size and suitable for the working pressure 6 In case the device is a compressor the aspirated air must be free of flammable fumes vapors and particles e g paint solvents that...

Страница 9: ...tem is present in the air net close to the dryer safety valves must be installed in the vessels of the dryer Also consult following safety precautions Safety precautions during operation and Safety precautions during maintenance These precautions apply to machinery processing or consuming air or inert gas Processing of any other gas requires additional safety precautions typical to the application...

Страница 10: ...amper with the sound damping material 12 Never remove or tamper with the safety devices guards or insulations fitted on the machine Every pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure shall be protected by a pressure relieving device or devices as required 13 Yearly inspect the air receiver Minimum wall thickness as specified in the instructio...

Страница 11: ...th open flame for inspecting the interior of a machine pressure vessel etc 14 Make sure that no tools loose parts or rags are left in or on the machine 15 All regulating and safety devices shall be maintained with due care to ensure that they function properly They may not be put out of action 16 Before clearing the machine for use after maintenance or overhaul check that operating pressures tempe...

Страница 12: ...pply to machinery processing or consuming air or inert gas Processing of any other gas requires additional safety precautions typical to the application which are not included herein Some precautions are general and cover several machine types and equipment hence some statements may not apply to your machine Instruction book 10 2920 7114 70 ...

Страница 13: ...troller pressure sensor and motor starter is integrated into the bodywork Floor mounted model The compressor is installed directly on the floor Floor mounted units are available without dryer only Tank mounted model QRS 10 QRS 15 QRSM 20 tank mounted are supplied with an air receiver of 270 l 71 28 US gal 59 40 Imp gal 9 45 cu ft or 500 l 132 US gal 110 Imp gal 17 50 cu ft Tank mounted units are a...

Страница 14: ...outlet AR Air receiver Dm1 Manual condensate drain DR Dryer D Dewpoint indicator Only on units with dryer Front open view tank mounted Reference Designation Co Oil cooler OF Oil filter OS Oil separator OT Oil separator tank Instruction book 12 2920 7114 70 ...

Страница 15: ...Rear open view tank mounted Air filter Reference Designation E Compressor element AF Air filter Instruction book 2920 7114 70 13 ...

Страница 16: ...through filter AF and open inlet valve IV into compressor element E is compressed Compressed air and oil flow into oil separator tank OT The air is discharged via minimum pressure valve Vp towards the air outlet AO Instruction book 14 2920 7114 70 ...

Страница 17: ...and open inlet valve IV into compressor element E is compressed Compressed air and oil flow into oil separator tank OT The air is discharged via minimum pressure valve Vp air receiver AR and air dryer DR towards the air outlet AO Instruction book 2920 7114 70 15 ...

Страница 18: ...2 3 Oil system Oil system Oil system units with dryer Instruction book 16 2920 7114 70 ...

Страница 19: ...irculation under all circumstances The oil system is fitted with a by pass valve BV When the oil temperature is below the set point of the valve the by pass valve shuts off the oil supply from oil cooler The by pass valve starts opening the supply from cooler Co when the oil temperature exceeds the setting of the valve The setting of the by pass valve depends on the model See the section Compresso...

Страница 20: ...ses oil cooler Co air receiver AR and fan FN The dryer DR has a separate cooling fan and an automatic condensate drain see also section Air dryer 2 5 Regulating system Detail view of unloader assembly UA The main components of the regulating system are Instruction book 18 2920 7114 70 ...

Страница 21: ...nloading valve opens completely The compressor will run unloaded 0 output The compressors are equipped with an intelligent controller that will stop the compressor after a variable period of unloaded operation using following control algorithm At power on in the first work cycle the Unload period is 30 seconds After the first work cycle and in all other working cycles the Unload period is calculat...

Страница 22: ...el Reference Designation 1 Electric cabinet ER ES 4000 Basic Controller S3 Emergency stop button 2 7 Electrical system Electrical components The electrical system comprises following components Instruction book 20 2920 7114 70 ...

Страница 23: ...Electric cubicle UL DOL Instruction book 2920 7114 70 21 ...

Страница 24: ...1 Terminal block of the control circuit X2 Terminal block voltage change of the motor Only on tri voltage units Electrical diagram 2205 0315 60 Service diagram cULus cCSAus DOL for 10 and 15 hp 2205 0316 30 Service diagram cULus cCSAus YD for 20 hp The complete electrical diagram can be found in the electric cubicle The complete electrical diagram can be found on the CD supplied with the machine I...

Страница 25: ...sor Safety valve on the compressor and on the vessel Reference Designation Function SV Safety valve To protect the air outlet system if the outlet pressure exceeds the opening pressure of the valve Instruction book 2920 7114 70 23 ...

Страница 26: ...r then flows through heat exchanger 1 where refrigerant evaporates withdrawing heat from the air The cold air then flows through condensate trap 4 which separates condensate from the air The condensate is automatically drained The cold dried air then flows through heat exchanger 3 where it is warmed up by the incoming air Instruction book 24 2920 7114 70 ...

Страница 27: ...oading and loading pressures the minimum stop time and the maximum number of motor starts are taken into account The controller stops the compressor whenever possible to reduce the power consumption and restarts it automatically when the net pressure decreases If the expected unloading period is to short the compressor is kept running to prevent too short standstill periods Protecting the compress...

Страница 28: ...f the controller Service warning If the service timer exceeds the preset value the controller advises the operator via the display to carry out the service maintenance Automatic restart after voltage failure The controller has a built in function to automatically restart the compressor when the voltage is restored after voltage failure This function is deactivated on compressors leaving the factor...

Страница 29: ...n menu Use this button to confirm the last action Press 5 seconds to reset alarm 8 Scroll button Use these buttons to scroll through the menu 3 3 Icons used on the display Function Icon Description Stopped Running When the compressor is stopped the icon stands still When the compressor is running the icon is rotating Compressor status Motor stopped Running unloaded Running unloaded blinking for ma...

Страница 30: ...urs s ON if the displayed value is in seconds Element outlet temperature 3 4 Main screen At power on the first screen is a test screen Icon digit and led are on The next screen is the Main screen shown automatically The Main screen shows The compressor status by means of pictographs The air outlet pressure Main screen with pressure stopped compressor From the Main screen it is possible with up and...

Страница 31: ...3 seconds The compressor starts and the status is shown Screen with running compressor To stop the compressor push start stop button 3 The compressor unloads Screen with unloading compressor When the unload time is elapsed the compressor is stopped and the controller goes back to main screen Instruction book 2920 7114 70 29 ...

Страница 32: ...nu with the up or down buttons 4 8 To select one item push the enter button 7 To end the current action push start stop 3 button If the emergency stop button is pushed the compressor stops immediately and the following screen will appear Emergency stop When the emergency push button is restored reset the alarm by pressing the enter button 7 for 5 seconds The following screen will appear Instructio...

Страница 33: ...f the compressor element Compressor element outlet temperature If the outlet temperature of the compressor element exceeds the shutdown warning level factory set at 110 C 230 F warning LED 5 is on Press Scroll up or down buttons 4 8 The screen shows the temperature at the compressor element outlet Instruction book 2920 7114 70 31 ...

Страница 34: ...e temperature at the outlet of the compressor element exceeds the shutdown level detected by temperature sensor TT11 or by temperature switch TSHH11 In case of error of the outlet pressure sensor PT20 or temperature sensor TT11 In case of overload of the compressor motor M1 Compressor element outlet temperature If the outlet temperature of the compressor element exceeds the shutdown level factory ...

Страница 35: ...t outlet temperature The screen shows that the temperature at the outlet of the compressor element is 117 C When the shutdown condition has been solved press the Enter button 7 for 5 seconds When rSt appears on the display the compressor can be restarted Motor overload In the event of motor overload The compressor will stop Alarm LED 5 will flash The following screen will appear Instruction book 2...

Страница 36: ...ressure temperature sensor In the event of an error of the outlet pressure sensor PT20 or temperature sensor TT11 The compressor will stop The following screen will appear Example of error sensor 3 8 Service warning Description A service warning will appear when the service timer has reached the preset time interval If the service timer exceeds the programmed time interval alarm LED 6 is blinking ...

Страница 37: ...Press enter button 7 The actual reading of the service timer is shown in hrs Example of running hours screen The example screen shows that the service timer is at 2002 hours Stop the compressor switch off the voltage and carry out the required service actions After servicing reset the service timer See section Calling up resetting the service timer Instruction book 2920 7114 70 35 ...

Страница 38: ...Main screen press the enter button 7 for 3 seconds to enter the Menu You will find the following items dAtA Data counters parameters ProG Submenu of Regulation pressure Timer Display setting and Control setting tESt Display test InFo Information of firmware release Instruction book 36 2920 7114 70 ...

Страница 39: ...maintenance warning diSP Display tEMP Calling up or modifying unit of temperature PrES Calling up or modifying unit of pressure bC LG Calling up or modifying time of backlight Ctrl Control Lo rE Calling up local remote start stop Ar Af Calling up automatic restart after voltage failure Ar d Calling up delay time of automatic restart after voltage failure nHCA Calling up the maximum number of compr...

Страница 40: ... dAtA and press Enter button 7 to enter the Data menu Scroll Up or Down buttons 4 8 until d 2 and the motor symbol is shown Press Enter button 7 the number of motor starts is shown This screen shows the number of motor starts x1 or if x1000 lights up x1000 In the above example the number of motor starts is 10100 3 12 Calling up module hours Starting from the Main screen Press Enter button 7 for 3 ...

Страница 41: ...d the running loaded symbol is shown Press Enter button 7 the loading time is shown The screen shows the unit used hrs or x1000 hrs and the value 1755 the compressor has been running loaded during 1755 hours 3 14 Calling up load solenoid valve Starting from the Main screen Press Enter button 7 for 3 seconds to enter the Main menu Select dAtA and press Enter button 7 to enter the Data menu Scroll U...

Страница 42: ...shown Press Enter button 7 the service timer is shown This screen shows the unit used hrs or x1000 hrs and the value In the example shown the compressor has run 1191 hours since the previous service 3 16 Calling up modifying pressure band selection Starting from the Main screen Press Enter button 7 for 3 seconds to enter the Main menu Select ProG and press Enter button 7 to enter the Programming m...

Страница 43: ...p or Down buttons 4 8 and press Enter button 7 to select parameter The actually used pressure is shown Scroll Up or Down buttons 4 8 to set pressure value and press Enter button 7 to confirm The unit blinks and the new setting is saved 3 18 Calling up modifying the unit of temperature The unit of temperature measurement can only be changed when the compressor is stopped Starting from the Main scre...

Страница 44: ...creen Press Enter button 7 for 3 seconds to enter the Main menu Select ProG and press Enter button 7 to enter the Programming menu After PASS blinking confirm 0 with Enter button 7 Scroll Up or Down buttons 4 8 to diSp for display settings Press Enter button 7 to enter the submenu Scroll Up or Down buttons 4 8 to bC LG and press Enter button 7 The current backlight setting is shown It is possible ...

Страница 45: ...nds to lock or unlock the keyboard The display will show the label Loc blinking for 3 seconds if the keyboard has been locked The display will show the label UnLo blinking for 3 seconds if the keyboard has been unlocked Example Lock unlock screen Instruction book 2920 7114 70 43 ...

Страница 46: ...ture can be below 0 C 32 F precautions must be taken In this case and also if operating at high altitude consult your supplier Moving lifting The lifting bars are available as an option Transport by a pallet truck For transport with a fork truck use the openings in the frame Move the compressor gently Instruction book 44 2920 7114 70 ...

Страница 47: ...instructions Reference Designation 1 Spacer bars to protect the body 2 Lifting straps Minimum length 6 meter ISO 4878 3 It is recommended to position the lifting straps this way Instruction book 2920 7114 70 45 ...

Страница 48: ...een the top of the unit and the ceiling is 2 m 78 7 in The air receiver must not be bolted to the floor For tank mounted units the minimum distance between the wall and the back of the compressor is 1 5 m 59 in 4 Position of the dryer The pressure drop over the air delivery pipe can be calculated as follows Δp L x 450 x Qc 1 85 d5 x P with d Inner diameter of the pipe in mm Δp Pressure drop in bar...

Страница 49: ...top switch Emergency stop switch Power supply Power supply Cooling air and compressor inlet Cooling air and compressor inlet Cooling air outlet of compressor and motor Cooling air outlet of compressor and motor Service panel Service panel Compressor controller Compressor controller Oil level indicator Oil level indicator Compressed air outlet G1 2 Female Compressed air outlet Forklift openings For...

Страница 50: ... the neutral conductor if applicable to terminal N Connect the earth conductor The power supply cable delivered with the compressor must be protected by raceway or by a suitable conduit system Specific voltage change instructions for units with 208 V 230 V 460 V cubicle The standard voltage configuration for the compressor is mentioned on the data plate of the machine When the compressors leave th...

Страница 51: ...208 230 460V 60Hz Instruction book 2920 7114 70 49 ...

Страница 52: ...provided Motor overload relay FM1 setting Rotate the adjustment screw 1 on the front of the relay to the required value Adjustment screw of the motor overload Motor overload FM1 settings 7 5 kW 11 kW 15 kW 10 hp 15 hp 20 hp 208 V 36 3 48 33 2 230 V Standard factory setting 34 3 45 30 460 V 16 9 22 5 15 Control transformer T1 Move the wire to the terminal marked with the desired voltage 208 V 230 V...

Страница 53: ... Working pressure 2 Hour meter 3 Dew point temperature 4 Start 5 Stop 6 Warning voltage 7 Lightly oil gasket of oil filter screw filter on and tighten by hand 9 Warning switch off voltage and depressurise compressor before carrying out maintenance work 10 Warning hot parts 11 With all bodywork panels in place push the start button If the sheet is pulled downwards Stop the compressor immediately an...

Страница 54: ...Ref Description 12 Manual condensate drain 13 Automatic condensate drain 14 Drain the condensate daily and inspect the vessel yearly Note down the inspection dates Instruction book 52 2920 7114 70 ...

Страница 55: ...5 Operating instructions 5 1 Initial start up Safety The operator must apply all relevant Safety precautions General preparation Air receiver port Condensate drain Instruction book 2920 7114 70 53 ...

Страница 56: ...s by fuses in all phases An isolating switch must be installed near the compressor 3 Connect condensate drain valve Dm and automatic drain outlet Da to a drain collector Close the valve Connect condensate drain valve 4 of the air receiver to a drain collector Close the valve To drain the condensate a NPT3 8 connection is available Connect a NPT3 4 valve to the air receiver port 2 Oil system Oil le...

Страница 57: ...or and stop it immediately Check the rotation direction of the motor using sheet 5 If the motor rotation direction is correct the sheet on the top grating will be blown upwards If the sheet remains in place the rotation direction is incorrect see the pictographs on the label If the rotation direction is incorrect switch off the voltage open the isolating switch and reverse two incoming electric li...

Страница 58: ...5 2 Starting Automatic drain Condensate drain valve on air receiver Dew point temperature gauge Instruction book 56 2920 7114 70 ...

Страница 59: ...utlet valve 4 Push the start button 6 The motor starts running after 25 seconds On compressors with a star delta starter the drive motor switches over from star to delta 10 seconds after starting The maximum number of motor starts must be limited to 20 per hour It is strongly recommended to operate the compressor with a load factor of more than 10 to avoid condensate in the oil Instruction book 29...

Страница 60: ...he plug and top up the oil until the sight glass is 3 4 full Do not overfill Fit and tighten plug FC 6 In automatic operation the regulator is automatically controlling the compressor i e loading unloading stopping of the motors and restarting 7 Regularly check the working pressure and the dew point Units with dryer 8 Regularly check that condensate is drained Da during operation 5 3 Stopping Cond...

Страница 61: ...e event of an emergency Avoid using the button for normal stopping of the compressor 2 Close air outlet valve and switch off the voltage to the compressor 3 Open condensate drain valve 4 of the air receiver for a few seconds to drain any condensate and then close the valve The air dryer and the air receiver remain under pressure The integrated filter if installed remains pressurised If maintenance...

Страница 62: ...ssor from the mains 3 Depressurise the compressor by opening plug 3 one turn Open condensate drain valve 4 of the air receiver 4 Shut off and depressurise the part of the air net which is connected to the outlet valve Disconnect the compressor from the air net 5 Drain the oil and condensate circuits 6 Disconnect the compressor condensate outlet and valve from the condensate net Instruction book 60...

Страница 63: ...al which comes first The local Customer Centre may overrule the maintenance schedule especially the service intervals depending on the environmental and working conditions of the compressor The longer interval checks must also include the shorter interval checks Preventive maintenance schedule Period 1 Running hours 1 Operation Daily Check the oil level After stopping drain the condensate from the...

Страница 64: ...e indicated oil exchange intervals are valid for standard operating conditions see section Reference conditions and limitations and nominal operating pressure see section Compressor data Exposure of the compressor to external pollutants or operation at high humidity combined with low duty cycles may require a shorter oil exchange interval Contact your supplier if in doubt Important Always consult ...

Страница 65: ...ir can be used for compressors operating at ambient temperatures between 0 C 32 F and 40 C 104 F If the compressor is regularly operating in ambient temperatures between 40 C and 46 C 115 F oil lifetime is reduced significantly 6 4 Oil filter and separator change Important Never mix oils of different brands or types A label indicating the type of oil filled ex factory is stuck on the air receiver ...

Страница 66: ...e the oil separator 1 Clean the seats on the manifold 6 Oil the gaskets of the new filter and separator and screw them into place Tighten firmly by hand 7 Fill oil separator tank 3 with oil until the level reaches the middle of sight glass 4 Ensure no dirt gets into the system 8 Refit and tighten filler plug 2 9 Close drain valve 8 of the air receiver 10 Run the compressor for a few minutes 11 Sto...

Страница 67: ... available to keep the compressor in excellent condition Consult the Spare Parts List for part numbers 6 7 Disposal of used material Used filters or any other used material e g desiccant lubricants cleaning rags machine parts etc must be disposed of in an environmentally friendly and safe manner and in line with the local recommendations and environmental legislation Electronic components are subj...

Страница 68: ...r close the air outlet valve and switch off the voltage 2 Remove the front panel and the top panel of the compressor housing 3 Unscrew the filter cover AF and remove the filter element Discard the air filter element 4 Fit the new element and screw on the filter cover 5 Refit the top and front panels Instruction book 66 2920 7114 70 ...

Страница 69: ...clean to maintain the cooling efficiency 2 Stop the compressor close the air outlet valve and switch off the voltage Remove any dirt from the oil cooler Co with a fibre brush 7 3 Safety valve Condensate drain valve Instruction book 2920 7114 70 67 ...

Страница 70: ...off the voltage open drain valves 4 tank mounted units and the manual drain valve 5 if fitted on floor mounted units and unscrew filler plug 3 one turn to permit any pressure in the system to escape If the valve does not open at the set pressure stamped on the valve replace the valve No adjustments are allowed Never run the compressor without a safety valve Instruction book 68 2920 7114 70 ...

Страница 71: ...he compressor close the air outlet valve and switch off the voltage 2 Remove the front door and the internal panel 3 The force and deflection varies with the power of the unit and with the total running hours of the belt The values to be measured are indicated with a label 1 on the frame 4 Refit the bodywork panels Instruction book 2920 7114 70 69 ...

Страница 72: ...e front door the internal panel the top cover and the pulley protection 3 Loosen the 4 bolts 2 by one turn 4 Adjust the belt tension by turning tensioning nut 1 5 The force and deflection varies with the power of the unit and with the total running hours of the belt The values to be measured are indicated with a label 1 on the frame 6 Retighten bolts 2 7 Refit the bodywork panels Instruction book ...

Страница 73: ...e top cover the pulley protection and the left side panel 3 Loosen the 4 bolts 2 by one turn 4 Release the belt tension by loosening tensioning nut 1 5 Remove the fan duct 4 Remove the belts 6 Install the new belts 7 Tension belts 3 as described above 8 Reassemble the fan duct 4 the pulley protection and the internal protection panel 9 Reassemble left side and top panel cover 10 Check the belt ten...

Страница 74: ...8 Problem solving Control panel Air outlet valve Instruction book 72 2920 7114 70 ...

Страница 75: ...Oil filler plug Condensate drain valve on air receiver Instruction book 2920 7114 70 73 ...

Страница 76: ...n Fault Remedy 1 Compressor starts running but does not load after a delay time Solenoid valve Y1 out of order Replace valve Inlet valve IV stuck in closed position Have valve checked Leak in control air flexibles Replace leaking flexible Minimum pressure valve Vp leaking when net is depressurised Have valve checked 2 Compressor air output or pressure below normal Air consumption exceeds air outpu...

Страница 77: ...Condition Fault Remedy Cooler clogged Clean cooler Compressor element E out of order Consult your supplier Instruction book 2920 7114 70 75 ...

Страница 78: ...ts from dust from the environment Local regulations remain applicable if they are stricter than the values proposed below Power variant 7 5 kW 10 hp 11 kW 15 hp 15kW 20 hp Frequency Hz Voltage V Cable Size Cable Size Cable Size UL cUL 60 208 230 460 AWG8 AWG10 AWG6 AWG10 AWG4 AWG8 60 575 AWG12 AWG10 AWG10 9 2 Settings for overload relay and fuses 7 5 kW 10hp 11 kW 15hp 15 kW 20hp Frequency Hz Volt...

Страница 79: ...ar e 4 Minimum working pressure psig 58 Minimum ambient temperature C 0 Minimum ambient temperature F 32 9 4 Compressor data Compressor type 7 5kW 10HP 11kW 15HP 15kW 20HP Frequency Hz 60 60 60 60 Maximum unloading pressure UL units bar 7 4 9 1 10 8 12 5 Maximum unloading pressure UL units psig 107 132 157 182 Nominal working pressure bar 6 9 8 6 10 3 12 1 Nominal working pressure psig 100 125 150...

Страница 80: ...outlet valve ambient approx floor mounted units C 28 F 82 Temperature of air leaving outlet valve ambient approx units with dryer C 5 F 41 Frequency Hz 50 60 Nominal motor power rating kW 11 hp 15 Dryer power consumption at full load units with dryer kW 0 385 0 581 hp 1 07 1 61 Oil capacity l 3 2 US gal 0 84 Sound pressure level ISO 2151 2004 db A 68 15kW 20HP 15kW 20HP Temperature of air leaving ...

Страница 81: ...Dryer power consumption at full load units with dryer kW 0 385 0 581 hp 1 07 1 61 Oil capacity l 3 2 US gal 0 84 Sound pressure level ISO 2151 2004 db A 71 Instruction book 2920 7114 70 79 ...

Страница 82: ...ertheless a weekly check of correct functioning of the automatic valve is needed This has to be done by opening the manual drain valve and check for condensate Verify that no rust obstructions affect the drain system 2 Yearly service inspection of the air receiver is needed as internal corrosion can reduce the steel wall thickness with the consequent risk of bursting Local rules need to be respect...

Страница 83: ...or the design are shown and or referred to The Declaration of Conformity Declaration by the Manufacturer is part of the documentation that is supplied with this compressor Local legal requirements and or use outside the limits and or conditions as specified by the manufacturer may require other inspection periods as mentioned below Instruction book 2920 7114 70 81 ...

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Страница 86: ...No 2920 7114 70 2017 03 Printed in Belgium People Passion Performance www cp com ...

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