ingersoll rand vfd nirvana manual
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ingersoll rand vfd nirvana manualThe drives can be wall or floor mounted. The Ingersoll Rand multiple module air dryer Ingersoll Rand recommends that this technical manual be Nirvana Cycling Refrigerated Dryer Models Operation and Maintenance Manual Note that this is Ingersoll Rand standard warranty. This compressor contains a variable frequency drive. Air Compressor And Its Parts And Manuals And Also Ingersoll Heidi study guide johanna spyri book, Manual buffalo terastation, Dishlex global manual, 31197r hamilton beach manual juicers, Ngos conflict resolution manual. Reload to refresh your session. Reload to refresh your session. Page Count: 3 Tricia's Compilation for 'service manual ingersoll rand air dryers nirvana'Ingersoll Rand Fixed-speed or Nirvana CompressorsX8I. System Controller 8 Compressor Integration Mixed ManufacturerIngersoll rand nirvana faults download on Pdfscatalogmanual.com free books and manualsFREE to View Online or. Download Ingersoll-Rand NIRVANA IRN100-200H-2S PDF User Manuals.Ingersoll Rand SSR Air Compressor Manual. Document Title: Ingersoll Rand SSRIngersoll-Rand Nirvana VFD Faults.Ingersoll-Rand, Nirvana Variable Frequency Rotary Compressors.Compressed Air Re-InventedIngersoll Rand is internationally known for its innovative compressed air systems, includingIngersoll Rand (NYSE:IR) advances the quality of life by creating and sustaining safe,Manuals Online. Return Home; Items Shipping Loose; Logout; Serial Number: Password 2009. Ingersoll-Rand Company, All rights reserved.Download Gs1000 repair manual.pdf. Download Gilat skyedge access manual.pdf. Download Operating systems concepts 8th edition solutions manual.pdf. Download Linear system theory design solution manual.pdf. Download Genetics study guide biology.pdf. Download 2008 jeep liberty repair manual.pdf. Download Gemstar service manual.pdf. Download 2003 lexus ls430 owners manual.pdf. Download Bmw 540i 2000 manuals.pdf. Download Kodak directview 7100 service manual.pdf. More manual PDF Files.http://www.gd-juli.com/userfiles/hunter-ion-generator-30730-manual.xml
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Download Bartender server training manual.pdf. Download Behaviour intervention manual.pdf. Download User manual for caterpillar generator sets.pdf. Download Toro timecutter 14 38z manual.pdf. Download Hofmann geodyna manual 80.pdfDownload Acc chemistry lab manual.pdf. Download Honda hs520 snow blower service manual.pdf. Download Huglu shotgun owners manual.pdf. Download Mazak engine manual.pdf. More PDF files:File Type Extension: pdf. Linearized: No. PDF Version: 1.7. Page Count: 3. Page Layout: SinglePage. Page Mode: UseNone. Title: Ingersoll Rand Nirvana Manuals. Creator. Description. Subject: ingersoll rand nirvana manuals. Creator Tool. Keywords: ingersoll rand nirvana manuals. Producer: TCPDF 6.0.083 ( ). Document ID: uuid:0240b205-5bd8-5764-c3c1-545048f42efc. Instance ID: uuid:0240b205-5bd8-5764-c3c1-545048f42efc. Schemas Namespace URI. Schemas Prefix: pdf. Schemas Schema: Adobe PDF Schema. Schemas Property Category: internal. Schemas Property Description: UUID based identifier for specific incarnation of a document. Schemas Property Name: InstanceID. Schemas Property Value Type: URI. Trapped: False. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime.When opening the cabinet: be certain the In consideration of the disclosure of the Proprietary Matter herein to the authorized recipient hereof, the recipient shall treat the Proprietary Matter as secret and confidential; shall not disclose or give such Proprietary Matter to third parties without the express written authorization of INGERSOLL RAND; shall not use the Proprietary Matter except to the extent necessary to use or service the equipment disclosed herein; and shall disclose such Proprietary Matter only to those of i ts employees whose use or knowledge of the Proprietary Matter is necessary. This manual shall be returned upon request by Ingersoll Rand Company. The unauthorized use of this manual may be punishable by law.http://agence-sml.com/files/hunter-icv-manual.xml Browse Books Site Directory Site Language: English Change Language English Change Language. Wear appropriate PPE Wear appropriate PPE Revision 02, July 2008 (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures. In consideration of the disclosure of the Proprietary Matter herein to the authorised recipient hereof, the recipient shall treat the Proprietary Matter as secret and confidential;. Contact Ingersoll Rand (bad setting or defective drive) Electronic 24 Volt The load on the 24V supplx exceeds the maximum current Power Supply that the supply can provide. Danger Please utilise extreme caution when performing work within the compressor. Depending on the frequency with witch the drive trips on “Sec.The connection for the CDC is located under the compressor canopy. No attempt should be made to tamper with the CDC parameters and adjustments must not be made to the original settings. Down for variable speed, and Up for fixed speed. The potentiometer is for setting the desired pressure, by rotating Left or Right. Always check: Intellikey being used is compatable with the Machine.Look at the compressor display indicator to see if the compressor has reached it's maximum pressure. If maximum pressure has been Compressor has power reached, compressor will not start.The indicator will revert back to the default screen from anywhere in the menu after approx 15 seconds of inactivity. Pressing the button navigates down through the following screens. Package Discharge Pressure in PSI - Displays the Package Discharge Pressure in PSI. The following screens can be viewed and manipulated. Exiting the configuration menu is accomplished by allowing the indicator to remain idle for approximately 30 seconds or by pressing and holding the button for 3 seconds. Wear appropriate PPE (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures.https://www.thebiketube.com/acros-bose-lifestyle-28-manual-installation Wear appropriate PPE (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures. Wear appropriate PPE (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures. Wear appropriate PPE (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures. Wear appropriate PPE (Personal Protective Equipment), follow lock out-tag out procedures, and ensure all safety procedures. For a better experience, please enable JavaScript in your browser before proceeding. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Recently installed a model IRN200H-2S, 200HP Ingersoll-Rand Nirvana air compressor. It is fed from a PMT which also serves a process line equipped with various and sundry inverter and servo drives, but with a largish Eurotherm 590 DC drive (didn't look, but on the order of 500 HP) driving an extruder screw. All of the drives on the production line have suitably sized line reactors installed, including the EU590. The Nirvana drive itself is equipped with an I-R part number 38036877 line reactor. A Fluke Scopemeter shows extruder drive notching on the waveform at the Nirvana VFD line supply. I'm told that (so long as it doesn't knee-cap itself with the high DC bus voltage error upon initial energization) the drive runs fine. Today was my first intro to the problem, and I haven't talked to their tech support people, but I'm guessing the Nirvana VFD initializes at zero speed command, just happens to be regenerating back to the line at very nearly the same point on the AC cycle the extruder is notching, and is somehow messing with the Nirvana's DC trip detection. Has anyone run into related problems with this particular unit (or I-R Nirvana VFD drives in general), and can shed some light on it. Should I look into a high power active tracking filter?http://www.decor-ada.com/images/canon-550ex-manual-download.pdf At one point, hall effect sensors on motor came loose, compressor down. Techs couldn't find the problem, replaced drive, drive would still fault. Finally replaced motor, and problem went away. Speculate that a bad winding, possibly damaged by loose screw rattling around was the cause. Not being an EE, I can't offer any advice on your power issues. We've had nothing but problems with this compressor, and seriously doubt we'd even consider I-R in the future. In fact we are already looking to install another 2 at the beginning of next year. We have seen substantial savings in our electric bills which stacks up with what we were told when we bought the compressors. So really our experience has been all good so far. I was told at the time we bought them that each and every compressor made at Ingersoll Rand is rigorously tested before being shipped so I wonder if the problems mentioned above have arisen due to being installed incorrectly or care not being taken during shipping. I will keep an eye on our compressors and report back if I see any problems that may be of interest. I would be very embarrassed if you were not provided with excellent tech support regardless of your location. In fact, when I was in sales, I sold one of the very first trial units approximately 5 years ago. The unit was (and still is) flawless during the trial period which immediately increased our confidence level of the product when it was eventually released for production. Becasue of this, we have hundreds of Nirvana's in our territory. Since the product line is nearly 5 years old, we have also experienced pretty much every situation that could have occurred. In return, I would like to find out if your problem is now resolved as well as what did you learn. Regards and a handshake, Jim Altonen I don't know who you are using, but I have many resources available as well as well trained and experienced techs. Our territory is loaded with Nirvana's - some which are 5 years old. I would like to think that we have experienced and resolved every possible Nirvana problem. Regards, my apologies and a handshake, Jim Altonen Service and Rental Operations Manager Ingersoll-Rand, Cincinnati, OH The independent power quality study proved that the issue was on the incoming power. SCRs tend to fire at the same point on an AC sine wave, so it is no surprise that your VFD had issues there. We have been told that an isolation transformer should eliminate the problem. After reading all comments I am afraid to make a decision. I am more concerned about HPM efficiency. Can someone comment on this what drive are they using, what about harmonics emission level, is this EMC certified? Our Nirvana is fed from the far end of a bus located about 200' from the compressor, bus loads are primarily servo drives, a smattering of smaller AC and DC drives, and a 400HP DC drive, and it is fed from a lightly loaded fairly high impedence pad mount transformer. We have a 5 reactor in front of the Nirvana, but a line reactor doesn't do much until you get reasonable levels of current flowing through it. I hooked up a computer running an HMI program, and logged a bunch of Modbus registers every second.Problem is, the big DC drive is notching the line fairly heavily, and the longer the wait, the higher the Nirvana's DC bus voltage goes, and it trips on bus overvoltage before auto-restart can occur. The drive runs fine if it is reset, and, immediately after the fault clears, and line contactor pulls it, it is manually started. Once the motor spins up and starts pulling load current, DC link voltages drop, and everything is happy (as long as there is sufficient demand - if it reaches the high pressure setpoint, and the drive is shut down.well, rinse and repeat). I don't know the nature of it's certifications, but I think it is made in France, and everything else I see coming in from the EU has been good in regard to emissions. Our local distributor did well by us for what they could learn, but my impression is I-R is a tad neurotic when it comes to discussing anything 'under the hood'.My suggestion was shot down, but it seems to me that a bit of hardware tweaking in the design (there is only one DC link reactor in the positive bus; maybe adding one on the negative bus as well would help) in conjunction with not waiting so long to do the auto-restart would get rid of the problem. We haven't finished it yet, but are juggling around our loads in order to feed it from a different bus (lower Z transformer, only one big DC drive on it, and the remainder primarily inductive loads), and that should take care of the problem. An isolation transformer would probably work as well, but we don't have enough room to mount one. Except for this, the Nirvana has performed well, and shouldn't be a problem unless you also have high horsepower 6 pulse SCR bridges on the bus you'll be using. Nothing but problems with this unit including the VFD. We know our incoming power is clean. Unit is only 3 years old. We had a Kobelco oil free compressor for 18 years with no trouble at all. Boss made us go with the low price IR. VFD on oil free doesn't make a lot sense from an energy standpoint, claims by IR were highly embellished. I apologize that you are having problems with this sytsem. I have placed many compressors with the variable drive and would like it if you could email me or let me know the area that you are in to get you the right help that you are looking for. I would like to help you out with this problem. Thanks, Mike Mitra BY the way,te type of VSD is md120tir.IR ended up replacing the motor and stator again. Then when we got it back - the drive went out. Ensure that the Operation and Maintenanc e manual is not removed permanently fr om the machine. Ensure that maintenanc e personnel are adequately trained, competen t and have read the Maint enance Manuals. 1 2 3. 100 Summary of content (100 pages) Page 1 IRN37?160K?CC IRN50?200H?CC IRN75?160K?2S IRN100?200H?2S IRN250?300H?2S OPERATION AND MAINTENANCE MANUAL Ensure that the operator reads and understands the decals and consults the manuals before maintenance or operation. Ensure that the Operation and Maintenance manual is not removed permanently from the machine. Ensure that maintenance personnel are adequately trained, competent and have read the Maintenance Manuals. TM C.C.N.: 54731245 DATE: DECEMBER 2007 REV. Machines sold and shipped into European community countries requiresthat the machine display the EC Mark and conform tovarious directives. In such cases, the design specification of this machine has been certified ascomplying with EC directives. Any modification to any part is absolutely prohibited and would result in the CEcertification and marking being rendered invalid. Page 5 2.0 fOREWORD warning The use of the machine in any of the situation types listed in table 1:.TABLE 1 warning ? NOT PERMITTED Use of the machine to produce compressed air for: a) direct human consumption b) indirect human consumption. Ensure that the operator reads and understands the decals and consults the manuals before maintenance or operation.All pressure containing parts, especially flexible hoses and their couplings, must be regularly inspected, be free from defects and be replaced according to the Manual instructions. Compressed air can be dangerous if incorrectlyhandled. Before doing any work on the unit, ensure that all pressure is vented from the system and that the machine cannot be started accidentally. In some regions compressor condensate containing ULTRA COOLANT can be fed directly into a drainage system that has downstream sewage treatment. Steps to be taken in the case of spillage: Soak up with a suitable absorbent material, then sweep into a plastic bag for disposal. Page 11 5.0 SAFETY Depending on point of manufacture and point of use, the compressor and this manual will show symbols from the following sections. Compressors for use within the European Community must be equipped with symbols from section 5.4. Read and understand thoroughly. Heed warnings and follow instructions. If you do not understand, inform your supervisor. 5.3 TEXT DECALS NOTICE WARNING To obtain satisfactory compressor operation and maintenance, a minimum of 3 feet clearance on 3 sides is required. Page 12 5.0 SAFETY CAUTION WARNING Incorrect lifting of machine can cause injury or property damage. Lift only from base channels WARNING Food contaminant. Can cause severe injury or death. Use only Ingersoll Rand SSR H-1F food grade coolant. 39568464 Rev. 03 NOTICE High pressure air. Compressor can operate in a pressurized shutdown mode. Rotation Replace filter element after first 150 hours of operation and every 2000 hours thereafter or when coolant is changed. NOTICE WARNING Rotation HIGH VOLTAGE Do not attempt any work. Read manual. Trained service personnel only. Remove electrical supply. Wait 15 minutes. Check for zero voltage. Proceed with caution. WARNING Moving parts. Can cause severe injury. Do not operate with covers removed. Page 14 5.0 SAFETY Condensate drain. Use 75?C copper wire only. Nur 75?C kupferdraht verwenden. Utilisez 75?C uniquement fil de cuivre. Usar solamente cable de cobre para 75? C. usare 75?C solamente cavi di rame. Electrical power inlet. IMPORTANT Before starting this air compressor unit the shipping brace(s) must be removed. Save the brace(s) for future use. WARNING ? Pressurized component or system. WARNING ? Pressurized vessel. Do not remove the Operating and Maintenance manual from this machine. Do not undertake any maintenance on this machine until the electrical supply is disconnected and the air pressure is totally relieved. WARNING ? Consult the Operation and Maintenance manual before commencing any maintenance. Read the Operation and Maintenance manual before operation or maintenance of this machine is undertaken. Do not stack. Page 17 5.0 SAFETY Use fork lift truck from this side only. Any indication of careless handling by the carrier should be noted on the delivery receipt especially if the compressor will not be immediately unpacked. Obtaining the deIivery persons signed agreement to any noted damages will facilitate any future insurance claims. Page 21 7.0 INSTALLATION For technical information see section 8.0. 7.1 LOCATION IN PLANT Ensure that the correct tie down points are used. For major overhaul (i.e. motor removal) position the machine to obtain lifting access e.g. fork lift truck. See diagram in reference section for minimum space requirements for normal operation and maintenance. This is to ensure a safe and effective total system. One item which should be considered is liquid carryover. Installation of this compressor must be in accordance with recognized electrical codes and any local Health and Safety Codes. The compressor must have its own isolator situated adjacent to it. Page 24 7.0 INSTALLATION caution VERY IMPORTANT Supply voltage must be kept to a maximum imbalance of 2 on 50Hz and 3 on 60Hz applications. Voltage imbalances greater than these levels can cause permanent damage to the drive. Compressor must not be subjected to any voltage spikes or surges in excess of 575V. Also a strainer of 2mm?mesh size should be installed on the inlet line. Strainers are available from Ingersoll Rand. Page 26 7.0 INSTALLATION Water quality recommendations Water quality recommendations Water quality is often overlooked when the cooling system of a water?cooled air compressor is examined. Water quality determines how effective the heat transfer rate, as well as the flow rate will remain during the life of the unit. It should be noted that the quality of water used in any cooling system does not remain constant during the operation of the system. Page 27 7.0 INSTALLATION 7.5 SEA WATERCOOLED UNITS (SELECTED UNITS ONLY) Water cleanliness is extremely important. Strainers are available from Ingersoll Rand. Cleaning of coolers as a result of fouling is a customer responsibility. Isolation valves with side drains should be installed on both the inlet and outlet lines. A normally closed solenoid valve is fitted to the water outlet side of the compressor package. It is important to ensure that the recommended flow rate cannot be exceeded. Page 28 7.0 INSTALLATION 7.6 OUTDOOR SHELTERED INSTALLATION Nirvana compressors are not suitable for outdoor installation. Use drain lines at least as large as the connection. Page 36 8.0 GENERAL INFORMATION 8.2 INSTALLATION DRAWING. Use drain lines at least as large as the connection. Page 37 8.0 GENERAL INFORMATION 8.2 INSTALLATION DRAWING. Use drain lines at least as large as the connection. Page 39 8.0 GENERAL INFORMATION 8.2 INSTALLATION DRAWING. O75mm (3”) O64mm 575V (Option) C 0.38“ NPT (Female) Note: Pipe condensate drain lines separately to an open drain due to differences in drain pressures. Use drain lines at least as large as the connection. Page 41 8.0 GENERAL INFORMATION 8.2 INSTALLATION DRAWING. Use drain lines at least as large as the connection. Page 43 8.0 GENERAL INFORMATION 8.2 INSTALLATION DRAWING. O75mm (3”) C 0.50“ NPT (Female) Note: Pipe condensate drain lines separately to an open drain due to differences in drain pressures. Use drain lines at least as large as the connection. Read operations manual and check local regulations D Cooling airflow E Exhaust airflow F Cabinet cooling airflow H U V W X Y Z 4 x O 14. Page 44 8.0 GENERAL INFORMATION 22381206 Revision B P 35 32 36 46 31 27 7 30 13 T21 M T 10 P 42 4 3 T 45 V 9 42 T21 12 39 44 T 2 M 23 8 11 T T 21 20 18 22 17 19 P 28 6 49 P 25 29 14 24 40 5 37 15 T 41 43 P 16 1 26 33 D 7 34 F 1st M 23 38 F 47 7 R 2nd P 48 2 TWO STAGE ONLY 8. Page 45 8.0 GENERAL INFORMATION KEY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Air discharge Compressor Air filter Vacuum switch 1VAC Cooler, air Cooler, coolant Condensate discharge Coolant filter Pressure switch, coolant filter 1DPS Drain valve, coolant Temperature switch 1ATS Air inlet check valve Timed solenoid condensate drain. It is a totally self contained air compressor package.If the compressor stops automatically, the airend, separator tank and oil system can contain high pressure air. Page 68 9.0 OPERATING INSTRUCTIONS Start sequence Blowdown mode The compressor will initially start by the operator pressing the local start button or receiving a remote start command. The compressor will start loaded and will ramp up the motor speed to its minimum speed. Once the minimum speed has been achieved, the compressor will begin to control pressure by using its speed regulation. When the system pressure reaches the target pressure, the compressor will start to slow. Page 69 9.0 OPERATING INSTRUCTIONS 9.2 INTELLISYS CONTROLS 1. Emergency stop 5. F2 Pressing this switch stops the compressor immediately. The blowdown valve will open to vent pressure in the separator tank to atmosphere. Note: the system downstream of the separator tank may still contain pressure. The compressors can not be restarted until the switch is manually reset. Turn the switch knob clockwise and press the reset button twice to reset. Not used. Page 70 9.0 OPERATING INSTRUCTIONS 9.3 DISPLAY SCREEN The display screen is divided into three functional areas, as seen in the typical CURRENT STATUS screen shown here. Page 71 9.0 OPERATING INSTRUCTIONS 9.4 CURRENT STATUS SCREEN The CURRENT STATUS screen is considered to be the “normal” display that the controller shows. The following items and their present values can be displayed on the right side of the screen by pressing the up and down arrow buttons 14 Motor Speed 15 Motor Current 16 Motor Voltage 17 Input Voltage The controller automatically returns the display to this CURRENT STATUS screen from other screens if no buttons are pressed within 30 seconds. Page 72 9.0 OPERATING INSTRUCTIONS 9.5 MAIN MENU The MAIN MENU screen can be accessed from the CURRENT STATUS screen by pressing the MAIN MENU button, identified by the words “MAIN MENU” in the bottom line of the screen directly above the center button. The language and units of measure are pre?set prior to the compressor leaving the factory. 100 The MAIN MENU screen is the point from which various operator functions can be accessed. Refer to the Operator Panel Flow Diagram. Page 73 9.0 OPERATING INSTRUCTIONS 9.6 OPERATOR SETPOINTS Setpoints are user?adjustable variables in the controller logic that can be set using the OPERATOR SETPOINTS screen shown opposite. 100 PSI OPERATOR SETPOINTS. The name and value of each of the setpoints listed can be seen on the screen by moving the list up and down using the arrow buttons. READY TO START TARGET PRESSURE 105 psi Setpoints associated with options are described in the OPTIONS sections. Page 74 9.0 OPERATING INSTRUCTIONS Automatic stop pressure Condensate Release The compressor will stop once the system pressure rises to this pressure and the compressor is operating at the minimum speed. The name and value of each of the following options can be seen by moving the list up and down using the arrow buttons An Option item’s value can be changed the same way that OPERATOR SETPOINTS values are changed. Page 76 9.0 OPERATING INSTRUCTIONS Scheduled start Scheduled stop This option will cause the unit to start on the scheduled start day, at the time stored in this setpoint. To disable this option, set the value of scheduled start equal to the value of scheduled stop. This option will cause the unit to stop on the scheduled stop day, at the time stored in this setpoint. To disable this option, set the value of scheduled stop equal to the value of scheduled start. Page 77 9.0 OPERATING INSTRUCTIONS 9.9 ALARM HISTORY Alarm History displays each of the Alarm messages for the last 15 Alarms experienced by the machine. It also gives access to displaying the machine operating conditions that existed at the time of each Alarm. The first one shown, “Alarm History 1”, was the most recent Alarm to occur. Note that multiple, consecutive EMERGENCY STOP Alarms are not recorded as separate Alarms, only the first one will be shown. Page 78 9.0 OPERATING INSTRUCTIONS 9.11 ENERGY STATUS MESSAGES 100 PSI ?ENERGY STATUS? READY TO START AVERAGE PACKAGE kW HRS AVERAGE CAPACITY? ?AVERAGE CAPACITY STATUS MAIN MENU SELECT The Energy Status display can be selected by pressing the ENERGY STATUS button. The following items and their present values will be displayed on the right side of the screen by pressing the up and down arrows. Page 79 9.0 OPERATING INSTRUCTIONS 9.12 WARNINGS When a WARNING occurs, a large question mark will flash on the display screen.The display message will indicate what caused the Alarm. The compressor will stop and cannot be re?started again until the alarm condition no longer exists and the alarm message reset. Pressing the STATUS button will display the STATUS screen. The presence of the ALARM button indicates that an Alarm condition still exists. Page 81 10.0 MAINTENANCE 10.1 MAINTENANCE PROMPTS The service warning and flashing LED will appear at intervals, dependant on the service level selected. Refer to operating instructions. The customer can only reset the warning for 24 hours by pressing the “set” button. The service warning will return each subsequent 2000 hours. The machine will be master reset after service work conducted prior to the 2000 hour interval to prevent false indication. Page 82 10.0 MAINTENANCE 10.2 MAINTENANCE CHART The MAINTENANCE CHART indicates the various components and the intervals when maintenance has to take place. Where a service interval is stated in both hours and months, it is the sooner of the two intervals that must be adhered to. Coolant capacities etc can be found in the GENERAL INFORMATION section of this manual. Note that any Local or National codes that require specific maintenance that exceeds the requirements of this section must be adhered to. Page 83 10.0 MAINTENANCE Note: On some sea watercooled models the oil cooler and aftercooler are fitted with sacrificial zinc anodes (pencils) that are located in the end bonnets of the coolers. These sacrificial zinc anodes should be checked after the first 50 hours of operation to determine if corrosive conditions exist. If satisfactory this interval may be extended to 500 hours. NOTE: 1. If sacrificial zinc anode is 50 corroded it should be replaced. 2. Page 84 10.0 MAINTENANCE Compressed air can be dangerous if incorrectly handled. Ensure that maintenance personnel are adequately trained, competent and have read the Maintenance Manuals. For all other maintenance, contact your local Ingersoll Rand office, Distributor or Air Center. Refer to safety information and maintenance procedures prior to carrying out any of the maintenance in the following sections. Discard the faulty element. Page 88 10.0 MAINTENANCE Blower motor Re?Grease (N75?160 Aircooled units) 6 Months or 4000 Hrs Apply high melting point grease into the blower motor drive end bearing using a grease gun at the nipple provided. Stop when excess grease is seen at the relief port.Follow cleaner manufacturers instructions for use. Wear appropriate safety equipment. Page 91 10.0 MAINTENANCE Watercooled machines Shut off the cooling water.If the machine fails to trip A FAULT EXISTS. Investigate immediately.