Pneumatech PMNG Series Installation, Operation & Maintenance Manual Download | Manualshive

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PMNG Cabinet Series

Membrane Nitrogen Generators

Installation, Operation & Maintenance Manual

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Summary of Contents for PMNG Series

Page 1: ...Page 1 of 18 PMNG Cabinet Series Membrane Nitrogen Generators Installation Operation Maintenance Manual ...

Page 2: ...6 3 4 CONDENSATE DRAIN CONNECTIONS Page 6 3 5 NITROGEN PIPING CONNECTION Page 7 3 6 PERMEATE GAS CONNECTION Page 7 3 7 COMPRESSOR RECIRCULATION CONNECTION Page 7 3 8 COMPRESSED AIR INLET CONNECTION Page 7 3 9 NITROGEN TANK CONNECTION Page 7 3 10 ELECTRICAL SUPPLY CONNECTION Page 7 4 0 DESCRIPTION OF SYSTEM Page 8 5 0 PRE START INSPECTION Page 10 6 0 INITIAL START UP and ADJUSTMENTS Page 10 6 1 NIT...

Page 3: ...12 8 ECONOMIZER Page 12 9 P SWITCH GAUGE LIGHT Page 13 10 HOURMETER Page 13 8 0 OPERATION MAINTENANCE Page 13 8 1 HEATER CONTROLS Page 13 8 2 HIGH TEMPERATURE THERMOSTAT Page 14 8 3 ROUTINE MAINTENANCE Page 14 9 0 ROUTINE MAINTENANCE SCHEDULES Page 15 10 0 RECOMMENDED SPARE PARTS Page 16 11 0 WARRANTY Page 18 ...

Page 4: ...ut the size of a human hair can be packed into a single module This provides a very large membrane surface area that efficiently produce large quantities of nitrogen This system is designed to deliver nitrogen plus other inert gases at specified concentration Because water vapor is being permeated out of the gas stream the resulting atmospheric dew point is 65 F or below A connection has been prov...

Page 5: ...th Nitrogen gas represents an extreme asphyxiation hazard when not handled properly Product gas should not be vented or otherwise discharged except through the normal piping system Appropriate signs should be placed in the area of the nitrogen system warning of the hazards 2 3 COMBUSTION The waste gas permeate vented out of the system is oxygen enriched it typically contains 35 40 oxygen but can b...

Page 6: ...d for a proper installation If required the waste gas permeate can be piped away from the unit utilizing a singe connection 3 2 LOCATION AND SETTING OF UNIT The unit should be installed indoors on a level surface capable of supporting the static weight of the equipment No special foundations or anchor bolts are required for the installation but may be used at the discretion of the customer If the ...

Page 7: ...been provided to pipe the waste gas from the second membrane or set of membranes which are connected in series This line can be connected to the intake of a dedicated feed compressor to improve nitrogen generator efficiency This line will contain 90 95 nitrogen Please refer to Section 2 2 Breathing If not used with dedicated compressor and the area is not ventilated well this line should be connec...

Page 8: ...eater maintains a constant temperature of compressed air to the membranes enhancing stability and performance Controls for the heater are installed on the instrument panel 4 0 DESCRIPTION OF SYSTEM The PMNG Cabinet Series membrane nitrogen generator is a modular system consisting of pre filtration separation and distribution sections Controls for the system are included in the nitrogen separation ...

Page 9: ... oxygen content A built in flow meter is there to constantly monitor nitrogen flow Oxygen content purity is controlled by a manual valve or by the optional AutoPure automatic purity flow control system If the unit is fitted with the latter it will have a proportionally controlled valve that gets its control signal from a dual loop process controller The controller constantly monitors the output si...

Page 10: ...ill energize only after units reach full pressure 4 Press the Start button on the operator interface on the front gauge panel 5 Adjust needle valve on re pressurizing circuit to pressurize system between 30 45 Seconds after pressing run button units equipped with EconoMizer 6 The heater controller and the purity controllers should be making their self adjustments 7 Calibrate oxygen sensor as descr...

Page 11: ...essure is on the system there will be airflow to the heater The pressure switch is factory set to approximately 85 90 of the inlet pressure and should not be re adjusted unless the inlet pressure to the membrane is re adjusted 7 0 OPERATING INSTRUCTIONS 7 1 GENERAL DESCRIPTION Pneumatech Model PMNG Series nitrogen gas generator is a complete system that is factory assembled tested and ready for se...

Page 12: ...lied with this option the system will also have a nitrogen storage tank downstream of the generator unit The purpose of this option is to save energy and run time on the unit during times of low or no demand There are high PS2 and low PS3 pressure switches to be set The low pressure switch PS3 should be set slightly above the minimum acceptable pressure to allow at least 5 minutes of operation fro...

Page 13: ...old and press keys to locate SP1 d SSd and release the buttons 4 Save to Memory Press and Hold keys simultaneously for 3 seconds to enter initial configuration into controller memory The display will now read ParK because a setpoint has not been entered yet Auto Tune needs to be performed before the final set point is entered B Auto Tune 1 Set Temperature Press the and until the temperature set po...

Page 14: ...g the elements 2 Unscrew the locking nut on the bottom of the element and discard the element Replace the element with a new one of the appropriate grade and replace the locking nut Do not over tighten 3 Auto drain Each filter is fitted with an internal automatic float drain to carry away condensate water oil There should only be a small amount of liquid in the housing As the level of the oil incr...

Page 15: ...does not exceed 10 PSID The filter elements need to be replaced when differential pressure reaches 10 PSID Every three months 1 Check operation of all safety relief valves 2 Calibrate oxygen sensor if equipped See section 6 4 Annually or longer intervals 1 Replace all filter elements on the unit at 8000 hours If the unit is equipped with differential pressure switch gauge the filter elements shoul...

Page 16: ... 3 0 1 AV 24 VA 003004 Automatic Purity Control Valve 3 0 3 PS1 PS2 PS3 EC 001962 Pressure Switch 2 3 1 DPG PS4 GM 000503 Gauge P Switch Gauge 0 15 PSID 3 0 3 Press Gauge 2 18 36 GM 000497 Gauge 0 200 PSIG 3 5 Dia Panel Mount 2 3 1 Reg Pilot 11 VA 000547 Precision Regulator Pilot 25 CR200H 3 0 1 Flow Valve 22 VA 003013 Controller Flow Manual 25 NPT 3 0 1 Regulator 12 VA 000566 Regulator Pilot Oper...

Page 17: ... Pole 120V 2 1 1 EC 000973 Relay Socket 2 1 1 EC 000591 Clamp Relay 2 1 1 I P Transducer 45 EC 003066 I P Transducer 4 20mA 2 1 1 DP Trans 37 EC 003866 Differential Pressure Transmitter 4 20mA 2 1 3 Auto Drain RF 001281 Float Drain Internal Kit 2 1 2 Filter Complete P4Q 095 15 F001 F002 Filter 1 3 complete 3 0 1 Filter Complete P4C 095 15 G4 F001 Filter 2 Complete 3 0 1 Screen 10 RG 002811 Screen ...

Page 18: ...Page 18 of 18 11 0 WARRANTY ...

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