Manual: NGP-250/500 - Potter Electric Signal Company, LLC
Contents
1. The nitrogen membrane has an estimated life of 10 years under continous use depending on the quality of input air The hollow fiber membrane doesn t require any maintenance When the desired nitrogen purity cannot be obtained the membrane should be replaced 19 Manual NGP 250 500 BP OTTER SOLUTIONS Filter Replacement 1 Isolate the nitrogen generator to relieve pressure first 2 Disconnect the power to the nitrogen generator 3 Unscrew the bowl from the filter body This can be done without disconnecting the drain line 4 Remove the element by unscrewing the filter 5 Clean the filter body and bowl with a clean rag 6 Replace the filter elements using filters provided in the Potter NGP MK 1 replacement kit 7 Check for leaks Compressor Maintenance Weekly e Check for unusual noise or vibration e Clean air filters use only non petroleum based products Clean all external parts of the compressor and motor Monthly Manually test safety relief valve Tighten fittings nuts and screws as required Quarterly Change air filters on compressor 20 CORROSION SOLUTIONS Manual NGP 250 500 P POTTER The Symbol of Protection Maintenance Log Initial Fill Post Purge N N Level N Level Riser Location Date Time Level at at Purge i at Purge Generator LLL al NEMIEMN Ol Ll ll rr ee a Ze NES EN NEN EN Work Completed 21 CORROSION Manual NGP 250 500 P POTTER SER2. FILTER VALVE TIMED DRAIN SWITCH SOLENOID VALVE PS 1 PRESSURE _ OUT TO DRAIN SWITCH UNLOADING PS2 VALVE UNLOADING VALVE UNLOADING LINE a VALVE CORROSION SOLUTIONS Manual NGP 250 500 P POTTER Figure 2 Typical NGP 250 Internal View Oil less Air Compressor Nitrogen Outlet Valve Nitrogen Membrane Nitrogen Bypass Valve Pressure Switches Nitrogen Test Port p ge Nitrogen Test Port Valve Drain Filters Nitrogen Inlet Valve Drain Tube Port Auto Drain Valve Tank Pressure Gauge Manual NGP 250 500 BP OTTER SOLUTIONS 3 Before Going To The Jobsite 1 Find a location to install the nitrogen generator that meets these requirements Dimensions 57 x 41 x 16 Hx Wx D Dry clean and well ventilated NNNM Ambient temperatures between 50 F and 110 F at all times mE p E ES Access to front for service Conveniently located near fire sprinkler system connections Conveniently located near drain The Potter Nitrogen Generator creates a 30 to 40 oxygen stream which may pose a flammability problem in an oxygen sensitive environment Pipe per installation requirements and ensure the area surrounding the Nitrogen Generator 1s adequately ventilated The Potter Nitrogen Generator should always be installed in an adequately ventilated room Nitrogen is nontoxic and
3. 12 Troubleshooting FAQs Issue The air compressor cycles frequently and or continuously runs Answer 1 Check the pressure gauges on the nitrogen generator tank If the pressure is above 80 PSI then shut off the nitrogen generator system immediately The potential problem could be a pressure switch failure 2 Ensure all valves on the compressor are opened or closed where necessary 3 Isolate the nitrogen generator from the sprinkler system if cycling continues Monitor the pressure on the nitrogen tank If the pressure is decreasing check all of the fittings for leaks and repair accordingly 4 If the cycling process continues and there are no leaks on the nitrogen generator side check the sprinkler system for additional leaks Leaks on the sprinkler system should be repaired not doing so could result in excess run times for the nitrogen generator Issue The air compressor does not turn on Answer 1 Ensure the power disconnect switch is in the ON position and properly wired 2 Check the pressure gauge on the Nitrogen Generator tank Note The nitrogen generator system will not turn on unless the pressure is below 60 PSI 3 Make sure all valves are open or closed where necessary Question The air compressor takes too long to fill Answer 1 Confirm all valves are in the correct position When filling the sprinkler system ensure the nitrogen bypass valve is OPEN Trying to fill the sprinkler system through the membran
4. AMD 1 and one Nitrogen Purge Valve Model NGP SPV or NGP SPV AUTO Check to see these components have arrived NGP 250 500 required accessories Im E Air Maintenance Device one per riser HE NGP SPV or AUTO one per riser an AMD 1 NGP SPV AUTO Required items supplied by sprinkler contractor Item 4 anchor bolts fit 7 16 holes on frame vibration pads recommended NPT piping from generator to system 1 2 or greater flex tubing reccomended Dedicated electrical circuit with electrical disconnect 6 mm plastic drain tubing if more than 10ft are needed anual NGP 250 500 P POTTER see ol of Protection 5 Installation of Nitrogen Generator 1 Ensure the location for installation of the NGP 250 500 is a clean dry well ventilated area Ensure that the dedicated electrical circuit with an electrical disconnect switch is the correct voltage and conveniently located for wiring If not contact a licensed electrician to install one Ensure the nitrogen generator is accessible at the front for servicing all major components inside the cabinet and near the fire sprinkler system connections Install the NGP 250 500 by anchoring the unit to a level surface using the four 7 16 diameter holes on the frame Note It is recommended practice to use vibration isolation pads to prevent excess vibration Install 1 2 NPT pipe or larger from the nitrogen storage tank outlet connection to the sprinkler
5. OR MERCHANTABILITY THE REMEDY PROVIDED UNDER THIS WARRANTY SHALL BE THE SOLE EXCLUSIVE AND ONLY REMEDY AVAILABLE TO THE PURCHASER AND IN NO CASE SHALL THE COMPANY BE SUBJECT TO ANY OTHER OBLIGATIONS OR LIABILITIES UNDER NO CIRCUMSTANCES SHALL THE COMPANY BE LIABLE FOR SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES EXPENSES LOSSES OR DELAYS HOWSOEVER CAUSED No statement representation agreement or understanding oral or written made by any agent distributor representative or employee of the Company which is not contained in this Warranty will be binding upon the company unless made in writing and executed by an officer of the Company This warranty shall not be effective as to any claim which is not presented within 30 days after the date upon which the product is claimed not to have been as warranted Any action for breach of this warranty must be commenced within one year after the date upon which the cause of action occurred Any adjustment made pursuant to this warranty shall not be construed as an admission by the Company that any product was not as warranted PROMPT DISPOSITION The Company will make a good faith effort for prompt correction or other adjustment with respect to any product which proves to be defective within the warranty period Before returning any product write or call the distributor agent or authorized company from which the product was purchased describing defect and giving date and number of original i
6. be damaged or become hazardous to persons or property CORROSION SOLUTIONS Manual NGP 250 500 P P OTTER The Symbol of Protection Specific procedures must be developed for maintenance of the equipment on which the membrane separator is located Appropriate labels must be continuously displayed in all areas where personnel might be exposed to a nitrogen atmosphere under normal or upset conditions Operation of the Nitrogen membrane separator above the rated design pressure may be hazardous Do not connect it to compressed air sources that can exceed its maximum rated pressure without installing appropriate pressure controls and safety relief devices in the compressed air supply line NOTICE Do not attempt to disassemble the Nitrogen membrane separator Equipment damage may occur and cause the system to function incorrectly NOTICE Do not install the AIR COMPRESSOR PACKAGE in an area where ammonia sulfur dioxide hydrogen sulfide mercaptans chlorides chlorine oxides of nitrogen acid fumes solvent vapors and ozone vapors or similar contaminants exist The equipment can be damaged by ammonia and other vapors shortening membrane life Locate the air compressor package to make sure no vapors are drawn into the intake Avoid locations such as a loading dock where large amounts of exhaust fumes and smoke may enter the air intake Manual NGP 250 500 BP OTTER SOLUTIONS 2 System Overview The Potter Nitrogen
7. of one week a reminder icon appears on the bottom of the LCD Calibration is recommended if the user is unsure when the last calibration procedure was performed or if the measurement value is in question With compressed air 79 196 N new calibration is required when e The measured N percentage in 79 1 N is above 80 1 N e The measured N percentage in 79 1 N is below 78 1 N e The CAL reminder icon is blinking at the bottom of the LCD A simple calibration may be made with the sensor open to static ambient air 23 Manual NGP 250 500 BP OTTER SOLUTIONS Error Codes E02 E02 E02 Make sure unit has reached thermal equilibrium Press and No valid calibration data available hold the Calibration Button for three seconds to manually force a new calibration Battery below minimum operating voltage Replace batteries Wait for displayed nitrogen reading to stabilize when calibrating the device at 100 oxygen Wait for unit to CAL Err St O2 Sensor reading not stable reach thermal equilibrium Please note that this can take up to one half hour if the device is stored in temperatures outside the specified operating temperature range Press and hold the Calibration Button for three seconds to manually force a new calibration If unit repeats this CAL Err lo Sensor voltage too low error more than three times contact Customer Service for possible sensor replacement Press and hold the Calibration Button for three s
8. screws and tighten until the screws are snug Verify the unit operates properly 7 The device will automatically perform a calibration and begin displaying 96 of oxygen 24 Manual NGP 250 500 B POITER SOLUTIONS Amae flow conteal siut Open analyzer flow control valve 1 16 turn from closed Close Nitrogen flow control in 1 16 turn Nitrogen flow control open too far i increments to achieve desired purity level Observe membrane pressure while operating Consult factory for setting procedure Nitrogen percentage too low Insufficient membrane pressure Replace or dry membrane by purging nitrogen tank purge manual drains on automatic drains clean drain if excessive water is released from manual drain m be normal nearing the end of a filling nitrogen flow control closed too far Open flow control until purity level is reached Nitrogen percentage too high Defective check valve Replace check valve Defective or wet nitrogen membrane Filters clogged Replace filters E pet Close bypass valve open nitrogen outlet and air inlet valves Press reset button check for power and function Compressor not starting No pressure or low pressure of pressure switches n the nitrogen analyzer and disconnect an Analyzer Error E02 No sensor attached Open the nitroge yzer and disconnect and reconnect sensor 25 Manual NGP 250 500 BP OTTER SOLUTIONS 12 Technical Specifications and Drawings Va
9. system air maintenance device using standard accepted installation practices Note Tank comes with two 1 2 female NPT connections located on both sides Choose either left or right side for use A flex hose can be used to prevent excess vibration Install Drain Tube by pushing it into the Drain Tube Port until it bottoms out Note Tubing will need to be restrained as air pressure from drain valve may cause the tubing to be displaced from drain Install 1 2 NPT pipe or larger from the air maintenance device to the sprinkler system using standard accepted installation practices Additional system components may be required Note AMD shown in closed position 10 1 2 female NPT connector CORROSION SOLUTIONS Manual NGP 250 500 P POTTER 6 Wiring of NGP 250 500 All wiring should be performed by a licensed electrician and conform to the NEC and all applicable local standards For wiring instructions refer to the Wiring Diagram Section located on pages 27 and 28 Note Neutral line required for 208V and 230V models 7 Installation of Nitrogen Purging System Each riser requires ONE Nitrogen Purge Valve to be installed prior to implementing the Nitrogen Purging Procedure It is usually recommended that the Nitrogen Purge Valve is installed at the end point of a system that is easily accessible For installation instructions refer to the NGP SPV Model 1117984 bulletin 45401520 or NGP S
10. they are not pinched between the two case halves The gasket separating the halves will be captured on the back case half 5 Reinsert the three screws and tighten until the screws are snug 6 The device will automatically perform a calibration and begin displaying of oxygen Changing the Oxygen Sensor Should the oxygen sensor require changing the device will indicate this by presenting Cal Err lo on the display after initiating a calibration 1 To change the oxygen sensor begin by removing the three screws from the back of the device A 1 Phillips screwdriver is required to remove these screws Once the screws are removed gently separate the two halves of the device 2 Disconnect the oxygen sensor from the printed circuit board by pressing the unlock lever first and then pull the connector out of the receptacle The oxygen sensor can now be replaced in the back half of the case 3 HELPFUL HINT Be sure to orient the new sensor by aligning the red arrow on the sensor with the arrow in the back casing A small tab is located on the back casing that is designed to engage the sensor and prevent it from rotating within the case 4 Reconnect the oxygen sensor to the connector on the printed circuit board 5 Carefully bring the two halves of the case together while positioning the wires to ensure they are not pinched between the two case halves Make sure the sensor is fully inserted and in the proper orientation 6 Reinsert the three
11. will continue to exhaust air This minor pressure release is normal and will stop once valves are positioned to nitrogen purge mode THE AIR BLEEDER VALVE IS FACTORY SET AND SHOULD NOT BE ADJUSTED 13 CORROSION SOLUTIONS Manual NGP 250 500 P P OTTER The Symbol of Protection 9 After making sure there are no leaks open the air maintenance device bypass valve to begin filling the sprinkler system If there is more than one AMD on the system then close the others Fill one system at a time 10 Allow the sprinkler system to reach the desired pressure Note This should finish in 30 minutes per the desired NFPA guidelines AMD Bypass valve shown OPEN 11 As soon as sprinkler system pressure is reached put the sprinkler system back into service by placing the air maintenance device in the maintenance position refer to the air maintenance device manual for proper operation Maintenance Valves shown OPEN If there is more than one AMD on the system fill EACH system individually and repeat steps 9 through 11 14 Manual NGP 250 500 BP OT TER Sotiris ol of Protection 9 Nitrogen Purging Procedure Once the system is at the desired supervisory pressure it is time to start injecting nitrogen and purging the oxygen 1 Close the nitrogen bypass valve 2 Slowly open nitrogen outlet valve 3 Slowly open the nitrogen inlet valve Nitrogen outlet valve shown in op
12. Generator operates using membrane technology The smaller oxygen and water vapor molecules can pass through permeate the membrane quickly The larger nitrogen molecules are less likely to diffuse through the separator tubes therefore they continue downstream to the separator outlet The permeated molecules are discharged to the atmosphere through a vent in the separator casing The Potter Nitrogen Generator is specifically designed to provide clean dry pure nitrogen for use in fire protection sprinkler systems The generator is a fully assembled package ready to be connected to a new or existing fire sprinkler system using either a factory pre engineered air compressor or an existing air source capable of providing the required air flow and air quality for the installation These turn key systems include all air filtration equipment required to keep the generator operating at peak efficiency All models come standard with pressure gauges and a nitrogen purity analyzer to monitor both the generator output and the piping purity level Figure 1 NGP 250 500 System Diagram BYPASS se VALVE PES NX PRESSURE RELIEVING VALVE BLOCKING VALVE METERING ORIFICE NITROGEN MEMBRANE SHUT OFF VALVE SAFETY RELIEF VALVE ANALYZER CONNECTION OILLESS COMPRESSOR ANALYZER HEAT EXCHANGER AFTER COOLER ae PRESSURE COALESCING BLOCKING
13. PV AUTO Model 1119799 bulletin 5401521 supplied with each purge valve amp c BPOTTER NGP SPV NGP SPV AUTO Nitrogen Generator Self Purge Valve Nitrogen Generator Automatic Self Purge Valve Purge Valves must be installed in a level horizontal position shown above 11 Manual NGP 250 500 BP OTTER SOLUTIONS 8 Standard Filling Method 1 Before beginning make sure the water supply to the sprinkler system is turned off 2 Make sure all piping connections have been made according to installation instructions 3 Close all air maintenance device valves If multiple AMDs are used ensure all valves are in closed position on each one Note AMD shown in closed position 4 Fully open the nitrogen bypass valve 5 Fully close the nitrogen inlet outlet and test port valves Nitrogen outlet valve shown in closed position Nitrogen bypass valve shown in open position Nitrogen test port valve shown in closed position Nitrogen inlet valve shown in closed position 12 Manual NGP 250 500 POTTER SSH The Symbol of Protection 6 Power the air compressor system ON 7 Allow tank pressure to reach 80 PSIG 8 Check all piping connections for leaks Note Check to see if pre plumbed piping is leaking fittings may have loosened during shipping Tank pressure gauge Note While filling system with air and after compressor shuts off the air bleeder valve
14. Potter Nitrogen Generator NGP 250 and NGP 500 Installation Operation amp Service Manual Nitrogen Generator Ww P POTTER SHE Potter Electric Signal Company LLC St Louis MO Customer Service 866 240 1870 Technical Support 866 956 1211 Fax 314 595 6999 www pottersignal com corrosion Manual 5403587 RevA 4 14 Manual NGP 250 500 B POITER SOLUTIONS Table of Contents SEI A vi dca bo isi eerie COE Rinne immo 4 System OVELVICW T L 6 Before Gomo to the Job Sie eisen 8 Uncrating and VSP ect ssscsessssecisssvessssessscsdacstecsisesuasscecstecossnsseessacsuassdonssscedsnsvensssessssssesossosuss suenesisobassnessseesiais 9 Installateure eier 10 hd Me 11 Purge Valve IRB M 11 Standard Filme Method 12 Nitrogen Faroe Procedure nenne 15 Normal Operation M sesrsestssS 18 M intenan Ce M 19 Troubleshooting FAQS 22 Nitrogen Analyzer LDisiC ue lIonS ioco mr a irrceb RE EROR PE AGE RE ECH IUE QUID ENL LED RS SPA SOLE EIN soose EP as ERE Ur bXRRE LES e EV VERI RAN 23 Technical Spe
15. RESSOR MOTOR NEUTRAL FAN MOTOR GROUND m DRAIN SOLENOID 29 Manual NGP 250 500 BP OTTER SOLUTIONS 14 Warranty GENERAL PROVISIONS amp LIMITATIONS Potter Electric Signal Company LLC the Company warrants to each original purchaser Purchaser of its new products from the Company or its Authorized Distributor that such products are at the time of delivery to the Purchaser made with good materials and workmanship No warranty is made with respect to Any product which has been repaired or altered in such a way in the Companies judgment as to affect the product adversely Any product which has in the Companies judgment been subjected to negligence accident improper storage improper installation or application Any product which has not been operated or maintained in accordance with the recommendations of the Company Components or accessories manufactured warranted and serviced by others wk WN Any reconditioned or prior owned product Claims for items described in 4 above should be submitted directly to the manufacturer WARRANTY PERIOD The Company s obligation under this Warranty is limited to repair or at its option replacing during normal business hours at the designated facility of the Company any part that in its judgment proved not to be as warranted within the applicable Warranty Period as follows COMPONENTS All non consumable components are warranted for 12 months from th
16. a leak in the system Contact Potter Technical Support 16 Manual NGP 250 500 POTTER SSR The Symbol of Protection 10 11 12 I9 14 15 16 LZ 18 To decrease time cycle bleed the tank pressure using the pressure relief valve located on the top of the tank Pull pressure relief valve ring and relieve air pressure until compressor starts running this will happen once tank pressure drops below 60 PSIG Once tank pressure reaches 80 PSIG the compressor will turn off Complete this process 5 times while recording in the maintenance log the length of time it takes the generator to reach 80 PSIG Pressure Relief Valve After five cycles check the nitrogen purity at the TEST PORT on the cabinet using the nitrogen purity analyzer The nitrogen purity should read between 95 99 Note Ensure the nitrogen test port valve is in the open position Test Port If the nitrogen purity levels are below 95 after 5 complete cycles contact Potter Technical Support Check the nitrogen purity level of the sprinkler system at the NGP SPV AUTO purge valve assembly using the portable nitrogen analyzer before leaving the jobsite Record purity level Note On average it takes 14 to 21 days for the system to reach desired purity Do not be alarmed by a low number if system has only been running a few hours Turn off analyzer after use Continue the purging until acceptable nitrogen levels are r
17. cifications and Drawings sccccscsscscsscssscccesssesssssesevssssnsssccnveseessssocssssoeesessesenssosssensssseosasscassecensse 26 Wiring Did Or am een RER 28 Warranty Policy 30 Manual NGP 250 500 BP OTTER SOLUTIONS 1 Safety Safety Guidelines This manual contains safety information that is important to know and understand This information is provided for the safety of installers operators and users of the Potter Nitrogen Generator as well as equipment To help recognize this information observe the following symbols Danger indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury Warning indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury Caution indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury NOTICE Notice indicates important information that if not followed may cause damage to equipment or property Important Notice to Users The Installation and Owner s Manual supplied with each unit must be read thoroughly and completely understood before installation and operation of the Potter Nitrogen Generator All appropriate safety standards for handling of gases as determined by local or national laws and regulations should be followed at all times Unpacking After unpacking unit carefull
18. e bottom of the display and is timed to activate when a calibration is necessary This key is used to tum the device on or off 2 This key is used to tum the device on or off 2 is used to turn the device on or off This key is used to calibrate the device Holding the key for more than three seconds will force the device to enter a calibration mode After the unit is turned on it will automatically calibrate to room air The display should be stable and reading 79 1 To check the nitrogen concentration of a sample gas after the unit has been calibrated 1 Connect the Tygon tubing to the bottom of the analyzer by threading the barbed adapter onto the oxygen sensor 2 Attach the other end of the sample hose to the sample gas source and initiate flow of the sample to the unit at a rate of 1 10 liters per minute 2 liters per minute is recommended 3 Using the ON OFF key make sure the unit is in the power ON mode 4 Allow the nitrogen reading to stabilize This will take about 30 seconds The device will assume a percent oxygen concentration when calibrating Be sure to apply 100 oxygen or ambient air concentration to the device during calibration or the device will not calibrate correctly Calibrating the N Analyzer Calibrate the N analyzer upon initial power up Thereafter Maxtec recommends calibration on a weekly basis To serve as a reminder a one week timer is started with each new calibration At the end
19. e date of purchase Consumables are not covered under warranty The unit must have been installed by either a factory authorized distributor or agent in accordance with the factory recommendations taking into account all other local site conditions not originally noted to the factory The unit must be operated and maintained in accordance with the Factory recommendations and original design conditions Failure to provide such proof of the above may void warranty LABOR TRANSPORTATION amp INSPECTION The Company will repair or replace any product or part thereof which in the Companies judgment is proved to be not as warranted Labor costs are not covered under warranty All costs of transportation of product labor or parts claimed not to be as warranted and of repaired or replaced parts to or from factory shall be borne by purchaser The Company may require the return of any part claimed not to be as warranted to one of its facilities as designated by the Company transportation prepaid by Purchaser to establish a claim under this warranty Replacement parts provided under the terms of the warranty are warranted for the remainder of the Warranty Period of the product upon which installed to the same extent as if such parts were original components DISCLAIMER THE FOREGOING WARRANTY IS EXCLUSIVE AND IT IS EXPRESSLY AGREED THAT EXCEPT AS TO TITLE THE COMPANY MAKES NO OTHER WARRANTIES EXPRESSED OR IMPLIED OR STATUORY INCLUDING ANY IMPLIED WARRANTY
20. e will result in long fill times and possibly damage to the compressor See Standard Filling Method for operation on how to fill the sprinkler system 2 Check the nitrogen generator system for leaks 3 Check the sprinkler system for leaks Issue The purge valve is not purging Answer 1 Confirm the ball valve is in the open position and the plug is removed 2 Check to ensure the Nitrogen Purge Valve was installed horizontal and level The Nitrogen Purge Valve contains a float valve that will be closed if the unit is installed improperly 3 Refer to the bulletin for Nitrogen Purge Valve instructions 22 Manual NGP 250 500 POII ERISSRORON ER SSR S The Symbol of Protection 13 Nitrogen Analyzer mEnE 3 Digit Display Low Battery Indicator Symbol Calibration Symbol ON OFF Key ON OFF Key Calibration Key Automatic Calibration Description The 3 digit liquid crystal display LCD provides direct readout of nitrogen concentrations in the range of 0 105 0 100 1 105 0 used for calibration determination purposes The digits also display error codes and calibration codes as necessary The low battery indicator is located at the top of the display and is only activated when the voltage on the batteries is below a normal operating level The sign is located to the right of the concentration number and is present during normal operation The calibration symbol is located at th
21. eached It is recommend that you return in 14 to 21 days and check the purge valve Close the purge valve after desired nitrogen purity level is achieved Note This step will be done automatically if you are Nitrogen Purity Analyzer using the NGP SPV AUTO only Ses page 23 foroperation 17 Manual NGP 250 500 BP OTTER SOLUTIONS 10 Normal Operation The nitrogen generator is controlled by pressure sensors that monitor the nitrogen tank pressure and automatically start and stop the air compressor based on the control settings Occasional start and stop operation of the Potter Nitrogen Generator is normal Frequent start and stop operation more than five times per hour is not normal operation and indicates service is required Immediately turn off nitrogen generator and contact Potter Technical Support When the air compressor is not running the membrane pressure gauge will read 0 Only the tank pressure gauge indicates pressure while the compressor is not running When the air compressor is running both pressure gauges read pressure and typically show different pressure readings this is normal The fan operates only when the air compressor is running The automatic drain valve automatically releases condensate from the unit 18 Manual NGP 250 500 BP OTTER SOLUTIONS 11 NGP 250 500 Maintenance All pressure must be relieved from the entire nitrogen generator system BEFORE servicing To avoid system da
22. econds to manually force a new calibration If unit repeats this error more than three times contact Customer Service for possible sensor replacement CAL Err Bat Battery voltage too low to recalibrate Replace batteries Changing the Batteries Open the hand held nitrogen purity analyzer and disconnect and reconnect sensor Unit should perform an No sensor attached Sate auto calibration and should read 79 1 If not contact Customer Service for possible sensor replacement CAL Err hi Sensor voltage too high When the batteries need to be changed the device will indicate this in one of two ways e The battery icon on the bottom of the display will begin to flash This icon will continue to flash until the batteries are changed The unit will continue to function normally for approx 200 hours e Ifthe device detects a very low battery level an error code of E04 will be present on the display and the unit will not function until the batteries are changed 1 To change the batteries begin by removing the three screws from the back of the device A 1 Phillips screwdriver is required to remove these screws Once the screws are removed gently separate the two halves of the device 3 The batteries can now be replaced from the back half of the case Be sure to orient the new batteries as indicated in the embossed polarity on the back case 4 Carefully bring the two halves of the case together while positioning the wires so
23. en position Nitrogen bypass valve shown in closed position Nitrogen test port valve shown in closed position Nitrogen inlet valve shown in open position 4 Go to the end of the system where the NGP SPV AUTO ball valve was installed Turn ball valve to the purge position Remove Plug EPONE NGP SPV shown in purge position 15 Manual NGP 250 500 BP OTTER SOLUTIONS 5 Additional NGP SPV AUTO Step Press the TEST button on the timer This restarts the timer and opens the solenoid valve The NGP SPV AUTO will now be open for 14 days before it automatically shuts off 6 While the air compressor is running monitor the nitrogen generator membrane pressure Pressure should remain steady at roughly 100 to 110 PSIG If the pressure is not in this range contact Potter Technical Support 7 The air compressor should automatically cycle OFF when the nitrogen storage tank pressure reaches 80 PSIG 8 The air compressor should automatically turn ON when the nitrogen storage tank pressure drops to 60 PSIG 9 Run the system for at least 5 ON OFF cycles Take note that the system cuts off at 80 PSIG and turns on at 60 PSIG The compressor should not run for longer than 70 minutes for the NGP 250 and 40 minutes for the NGP 500 to cycle from 60 PSIG to 80 PSIG in the nitrogen storage tank If the compressor is continuously running for longer than the approved times it might indicate
24. largely inert Rapid release of nitrogen gas into an enclosed space displaces the oxygen and can cause an asphyxiation hazard Inhalation of nitrogen in excessive concentrations can result in unconsciousness without any warning symptoms 2 Runa dedicated electrical circuit with an electrical disconnect switch to sprinkler room NOTE Neutral line required for 208V and 230V models N l N 1119404 IGP 500 2A 208V 1119405 NGP 500 3A 230V 1119403 GP 500 1A SINGLE 18 0A 115V Manual NGP 250 500 P POITER CORROSION SOLUTIONS 4 Uncrating and Inspection 1 On arrival do a full inspection by checking all packages and crates in the shipment for damage If damage is found sign for the damage or refuse the shipment Contact the carrier immediately and file a shipping damage claim with the carrier 2 Check to ensure all components are contained and no visible damage has occurred during shipping Important Read all of the safety information in this manual before installing or operating this equipment NGP 250 500 crate checklist mm Niogan came m Dusmgeumk Cd N2 membrane Gnsidecabine Oies air compressor inside sabing INwegenambzer msdecimn PManualGnsidecabine Hon 6mm condensation drain tube aside sabimen 3 Each nitrogen generator requires one Air Maintenance Device
25. mage and or personal injury the nitrogen generator should be isolated from the compressed air supply and the generator system fully depressurized before any maintenance or service is performed All maintenance and troubleshooting activities for the Potter Nitrogen Generator should be performed by qualified personnel using reasonable care Before servicing isolate all risers by closing all AMD valves and relieving all system pressure from the Potter Nitrogen Generator Failure to do so could result in serious injury or death The Potter Nitrogen Generator features durable components and construction for long lasting value reliable performance and require little maintenance Check the performance and operating conditions of the Potter Nitrogen Generator This includes e Verifying stable pressure readings on all pressure guages e Confirming that operating pressure settings are correct The following table shows the scheduled maintenance required on the Potter Nitrogen Generator Scheduled Maitenance Table Part Frequency Filters Replace annually or as differential pressure indicates Nitrogen Purity Sensor Replace Battery and Sensor Element as required Nitrogen Storage Tank Drain condensate as required Internal Piping Inspect monthly for leaks List of Service Parts Part Number Description 1119784 NGP SPV Nitrogen Self Purge Valve 1119781 NGP MK 1 NGP 250 and NGP 500 Nitrogen Maintenance Kit
26. nvoice as well as proof of Factory supplied consumables and proof of scheduled maintenance Title and risk of loss pass to buyer upon delivery to the common carrier PRODUCT SUITABILITY Many States Localities and Countries have codes and regulations governing sales construction installation and or use of products for certain purposes which may vary from those in neighboring areas While Potter attempts to assure that its products comply with such codes it cannot guarantee compliance and cannot be responsible for how the product is installed or used Before purchase and use of a product please review the product application and national and local codes and regulations and be sure that the product installation and use will comply with them 30
27. riable Description ISO Class1 4 1 or better Free of water 38 F 3 C Dew Point compressor oil 0 008 UD PPM or 01 mg m3 hydrocarbons and particles 0 01 um microns Temperature Range 50 F 10 C to 110 F 60 C Recommended Inlet Temperature 95 100 F 35 38 C Pressure Maximum air pressure entering generator should not exceed 170 PSIG Figure 3 NGP 250 and NGP 500 Dimensions DRYER CONDENSATE OUT 6MM PUSH IN TUBE CONNE amp MM HOSE SUPPLIED ITROGEN STORAGE PRE 26 Manual NGP 250 500 BP OTTER SOLUTIONS Figure 3 NGP 250 and NGP 500 Dimensions Continued m MEMBRANE PRESSURE GAUGE NITROGEN GENERATOR CABINET NITROGEN PURITY TEST PORT 10 1 8 m N _ 12 vl ITROGEN OUTLET 1 2 FNPT TYPICAL 2 PLCS CONNECT TO AIR MAINTENANCE DEVICE 30 GALLON NITROGEN STORAGE TANK 27 Manual NGP 250 500 BP OTTER SOLUTIONS 13 Wiring Diagrams Figure 4 NGP 250 and NGP 500 115V Single Phase Wiring Diagram LINE MOTOR LINE MOTOR BLACK 5 6 LINE PS 1 PS2 COMPRESSOR TANK IPING LINE MOTOR 8 NEUTRAL COMPRESSOR WHITE LINE MOTOR PS 1 GREEN GROUND FAN MOTOR DRAIN SOLENOID 28 anual NGP 250 500 BP OTTER SOLUTIONS Figure 5 NGP 250 and NGP 500 208V amp 230V Single Phase Wiring Diagram LINE MOTOR LINE MOTOR BLACK 5 LINE 1 PS 1 PS 2 PIPING COMPRESSOR TANK MOTOR LINE 2 COMP
28. y inspect all parts and equipment for any damage that may have occurred during transit Make sure to tighten fittings bolts etc before putting unit into service Do not operate unit if damage occured during shipping handling or use Contact Potter immediately General Safety Information Important Read all of the safety information in this manual before operating this equipment Use of the equipment in a manner not specified within this manual may impair the protection provided by the generator and could result in an unplanned release of pressure which may cause serious injury or damage Only competent personnel who have been trained qualified and approved by Potter Electric Signal Company LLC should perform commissioning servicing and repair procedures When handling installing or operating this equipment personnel must employ safe engineering practices and observe all related local regulations health and safety procedures and legal requirements for safety Ensure that the equipment is depressurized and electrically isolated before carrying out any of the scheduled maintenance instructions specified in this manual The warnings in this manual cover the most known potential hazards but by definition cannot be all inclusive If the user employs an operating procedure item of equipment or a method of working that is not specifically recommended by Potter Electric Signal Company the user must ensure that the equipment will not
Download Pdf Manuals
Related Search