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Related Manuals for General Air Products NGP-WM300
Summary of Contents for General Air Products NGP-WM300
- Page 1 Wall Mount Nitrogen Generators NGP-WM300/ NGP-WM600 Installation, Operation and Maintenance Manual 1 800 345 8207 Call or visit our web site for our complete product listing www.GeneralAirProducts.com CI222159 REV: 4 Licensed for use under U.S. Patents 9,144,700, 9,186,533, and 9,610,466...
- Page 2 1-800-345-8207...
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Page 3: Table Of Contents
Table of Contents Safety & Warnings ............. . . Section 1 System Overview . -
Page 4: Section 1 - Safety & Warnings
Only competent personnel, who have been trained, qualified, or approved by General Air Products should perform commissioning, servicing, and repair procedures. Call 800-345-8207 for details 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. - Page 5 The warnings in this manual cover the most known potential hazards, but by definition cannot be all-inclusive. If the user em- ploys an operating procedure, item of equipment, or a method of working that is not specifically recommended by General Air Products, the user must ensure that the equipment will not be damaged or become hazardous to persons or property.
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Page 6: Section 2 - System Overview
Product Designation Outlet Pipe Connection, NPS Sprinkler System Capacity (Gallon) Bypass Capacity (Gallon) NPG-WM300, 60 HZ 1275 NGP-WM600, 60 HZ 3880 1275 NPG-WM300, 50 HZ NGP-WM600, 50 HZ 3880 NGP-WM300, 600 Flow Diagram , 600 1-800-345-8207... - Page 7 Typical External View NGP-WM300, 600 Ten Gallon Vertical Receiver Tank 1-800-345-8207...
- Page 8 Typical Internal View NGP-WM300 (NGP-WM600 is similar with a larger compressor.) 1. Pressure Switch 6. Nitrogen Control Panel 2. Nitrogen Outlet Valve 7. Nitrogen Membrane 3. Nitrogen/Air Fill Valve 8. Coalescing Filter 4. Nitrogen Test Port Valve 9. 5 Micron Filter 5.
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Page 9: Section 3 - Before Going To The Job Site
The model number may be followed by a -H or -V (horizontal or vertical tank), and may be followed by a -G for alternate membrane. Maximum Circuit Breaker Size Model Phase Amperage Voltage/Hz. (Amps) SINGLE NGP-WM300-1A NGP-WM300-1A 115/60 SINGLE 115/60 NGP-WM600-1A SINGLE 208-230/60 NGP-WM300-3A... -
Page 10: Section 4 - Uncrating And Inspection
Section 4 - Uncrating and Inspection 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. -
Page 11: Section 5 - Installation Of Nitrogen Generator
Section 5 - Installation of Nitrogen Generator Wall Mounting Instructions: Mount the top cabinet mounting bracket to the wall making sure that it is level. Lift the generator with attached mounting bracket and insert into wall mount bracket. Tighten bolts inside cabinet to clamp onto wall mount bracket. -
Page 12: Section 6 - Wiring
Install ½” NPT pipe (or larger) from the Auxiliary Air Inlet to Auxiliary compressor if required. The auxiliary air compressor must have a pressure switch set to cut out at 60 psi or lower. Section 6 - Wiring All wiring should be performed by a licensed electrician and conform to NEC and all applicable local standards. For wiring instructions refer to the Wiring Diagram. -
Page 13: Section 7 - Standard Air Filling Method
Section 7 - Standard Air Filling Method Before beginning, make sure the water supply to the sprinkler system is turned off and sprinkler piping has been completely drained. Make sure all piping connections have been made according to installation instructions. Close all Air Maintenance Device valves. - Page 14 Power the nitrogen generator system ON. The Power On light should turn green. The compressor will shut off at 75±3 PSI nitrogen storage tank pressure. Check all piping connections for leaks including inside the generator cabinet, as pre-plumbed piping may have loosened during shipping.
- Page 15 The nitrogen generator is now ready to fill the fire sprinkler system to the desired supervisory pressure. Open the ball valve at the nitrogen storage tank outlet. Enable auxiliary air compressor if installed by applying power to the compressor and opening Auxiliary Air Inlet Valve.
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Page 16: Section 8 - Nitrogen Filling Procedure
Section 8 - Nitrogen Filling Procedure Once the system is at the desired supervisory pressure, it is time to start injecting nitrogen. Close the Auxiliary Air Inlet Valve. Move the Nitrogen/Air Fill handle to the Nitrogen position. Open the Nitrogen Outlet Valve. Auxiliary Air Fill Valve (Nitrogen (closed) Position) Nitrogen/Air Fill Valve... - Page 17 Open the drain valve on the nitrogen storage tank and relieve the pressure until the compressor starts. The compressor should turn on at 60±3 PSI on the nitrogen tank pressure gauge. The membrane pressure gauge should read between 95 and 100 PSI. Record the time it takes for the nitrogen storage tank to reach 75 PSI.
- Page 18 When the nitrogen storage tank pressure reaches 75±3 PSI, the compressor will turn OFF and the nitrogen membrane pressure will go to zero (0). Repeat steps 4-7 a second time to ensure nitrogen storage tank fill up times are consistent. On the second cycle, open the Nitrogen Test Port Valve located on the inside of the cabinet.
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Page 19: Section 9 - Nitrogen Control Module
Section 9 - Nitrogen Control Module The Nitrogen Control Module is a built in PLC used to monitor the nitrogen generator and provide useful information on alarms, compressor operating hours and cycles. Normal operation does not require any operator input. The display should read “WM300 Nitrogen Mode Standby when the compressor is off”, and Generating Nitrogen or Bypass Mode when the compressor is running unless the generator is... - Page 20 Log Screens Power Cycle Screen Alarm 1 and 2 Counts Screen Alarm 3 and 4 Counts Screen* Compressor 1 Hours and Cycles Screen 1-800-345-8207...
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Page 21: Section 10 - Nitrogen Generator Alarms/Troubleshooting
Section 10 - Nitrogen Generator Alarms/Troubleshooting The NGP-WM300 nitrogen generator has 4 alarms, the NGP-WM600 nitrogen generator has 5 alarms. If an alarm is activated, the alarm light will turn red on the outside of the cabinet and the Alarm Horn will sound. The alarm number will also display on the Nitrogen Control Module on the right side of the cabinet. - Page 22 Alarm 4 and 5 – Compressor Overload Issue: Compressor overload relay has tripped. Answer: Reset overload relay and check Amp draw. Membrane pressure is too high - adjust relieving valve to 100 psi. Low voltage at compressor, measure supply voltage in nitrogen cabinet while compressor is running. Increase feed wire gauge as required.
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Page 23: Section 11 - Nitrogen Generator Leak Check Method
Section 11 - Nitrogen Generator Leak Check Method First isolate the nitrogen generator from the fire protection system, by closing the ball valve located on the outlet of the nitrogen storage tank. If no ball valve was installed, close the AMD valves installed between the sprinkler system and the nitrogen generator. -
Page 24: Section 12 - Nitrogen Membrane Check
Section 12 - Nitrogen Membrane Check First isolate the nitrogen generator from the fire protection system, by closing the ball valve located on the outlet of the nitrogen storage tank. If no ball valve was installed, close the AMD valves installed between the sprinkler system and the nitrogen generator. -
Page 25: Section 14 - Maintenance
MAINTENANCE KIT - NGP-WM600 AMD-1 AIR MAINTENANCE DEVICE NGP-PSN2 NITROGEN ANALYZER NGP-5340014 SENSOR ELEMENT (R217P67 ONLY) NGP-WM300 OIL-LESS COMPRESSOR INTAKE FILTER TN-10248 ELEMENT (1 PER COMP.) NGP-WM600 OIL-LESS COMPRESSOR INTAKE FILTER TN-10876 ELEMENT (1 PER COMP.) NGP-M1 NGP-WM300 MEMBRANE - M1... -
Page 26: Filter Replacement
Filter Replacement To replace the filters in the generator cabinet: Isolate the nitrogen generator and relieve pressure. Note: to release pressure in filters loosen one of the gray manual drain knobs on the bottom of the filter bowls. Disconnect the power to the nitrogen generator. Unscrew the bowl from the filter body by pushing the release lever down and twisting 1/8 turn. -
Page 27: Section 15 - Normal Operating Parameters
Air Compressor OFF (Nitrogen Tank Pressure) 75 PSI Air Compressor ON (Nitrogen Tank Pressure) 60 PSI NGP-WM300: 40 seconds Time Interval to build pressure from 60 PSI to 75 PSI in tank storage in Air Fill Mode NGP-WM600: 20 seconds... -
Page 28: Nitrogen Analyzer Instructions
NGP-PSN2 Nitrogen Analyzer Instructions NGP-PSN2 (R217P67) NGP-PSN2 Component Description The 3 ½ 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 3 ½ Digit Display determination purposes). - Page 29 Calibrating the N2 Analyzer - NGP-PSN2 (R217P67) Calibrate the N2 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 of one week a reminder icon appears on the bottom of the LCD.
- Page 30 NGP-PSN2 (R217P67) Changing the Batteries - When the batteries need to be changed, the device will indicate this in one of two ways: The batte y icon on the bottom of the display will begin to flash. This icon will continue to flash until the batteries are changed.
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Page 31: Wiring Diagrams
Section 17 - Wiring Diagrams NGP-WM300,600 Wiring Diagram 1-800-345-8207... -
Page 32: Technical Specifications And Drawings
Section 18 - Technical Specifications and Drawings Weight WM300/600 135/155 lbs System Connection 1/2” Female NPT (on nitrogen tank) Available in 115Vor 230V 60 hz, and 220V 50 hz. Power Supply Outlet Pressure 60-75 PSI Temperature Range 50°F (10°C) to 110°F (43°C) 10 Gallon Vertical Receiver Weight: 40 lbs. - Page 33 10 Gallon Horizontal Receiver Weight: 50 lbs. Generator may be mounted to horizontal tank or floor using the supplied mounting struts 1-800-345-8207...
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Page 34: Warranty Policy
Company, transportation prepaid by Purchaser, areas. While General Air Products, Inc. attempts to assure that its to establish a claim under this warranty. products comply with such codes, it cannot guarantee compliance, and cannot be responsible for how the product is installed or used.
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