Potter NGP-300D Installation, Operation & Service Manual Download Page 34

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Manual: NGP-300D

POWER STATUS

RELAY

SW-1

BYPASS VALVE

SWITCH

NOTE: GROUND MOTOR, PRESSURE SWITCHES, AND SOLENOID COILS

POWER FAULT ALARM RELAY
CUSTOMER CONNECTIONS
(RELAY SOCKET SCREW TERMINALS )

-2

-6

24 VDC POWER SUPPLY

PLC CONTROLLER

COMPRESSOR

MOTOR

AIR TANK

DRAIN

SOLENOID

FILTER DRAIN

SOLENOID

DRAIN

TEST

BUTTON

ALARM TERMINALS
CUSTOMER
CONNECTIONS

N.O.

NITROGEN SOLENOID

LIGHT

DRAIN

TEST

BUTTON

OVERLOAD

CONTACTOR

OVERLOADS

NITROGEN

SOLENOID

COMPRESSOR

CONTACTOR

CONTROL

POWER LIGHT

COMPRESSOR

AUX. CONTACT

PS-2

(60-75 PSI)

PS-1

(85-100 PSI)

208-230/460V, 3 PH, 60 HZ

GND

ALARM HORN WITH

SILENCER MODULE

ALARM LIGHT

Three Phase Models Wiring:

firealarmresources.com

Summary of Contents for NGP-300D

Page 1: ...ation Service Manual Manual 5401568 Rev A 8 16 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 corrosi...

Page 2: ...2 Manual NGP 300D firealarmresources com...

Page 3: ...ng Method 14 Nitrogen Purging Procedure 17 Nitrogen Control Module 20 Nitrogen Generator Alarms Troubleshooting 21 Nitrogen Generator Leak Check Method 23 Air Side Leak Check Method 24 Nitrogen Membra...

Page 4: ...regulations should be followed at all times Unpacking After unpacking unit carefully inspect all parts and equipment for any damage that may have occurred during transit Make sure to tighten fittings...

Page 5: ...lassified as non hazardous for transportation purposes and as non flammable for fire regulations This equipment is for indoor use only Do not operate outdoors Specific procedures must be developed for...

Page 6: ...assembled package ready to be connected to a new or existing fire sprinkler system using a factory pre engineered air compressor These turn key systems include all air filtration equipment required to...

Page 7: ...r Compressor 2 Air Tank Pressure Gauge 3 Air Tank Pressure Switch 4 Air Storage Tank 5 Nitrogen Storage Tank 6 Nitrogen Cabinet 7 Power On Light 8 Nitrogen Solenoid Light 9 Alarm Light 10 Alarm Horn 1...

Page 8: ...ain Solenoid Test 4 Bypass Valve Yellow Handle 5 Bypass Alarm Switch 6 Nitrogen Tank Pressure Switch 7 Nitrogen Inlet Valve Blue Handle 8 5 Micron Filter 9 Coalescing Filter 10 Separator 11 Nitrogen S...

Page 9: ...t all times 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...

Page 10: ...accessories Item Air Maintenance Device One per riser NGP SPV or INS PV One per riser Nitrogen Analyzer One per job Required items supplied by sprinkler contractor Item 8 anchor bolts fit holes on fra...

Page 11: ...bing to be displaced from the drain 2 Install a ball valve at the nitrogen storage tank outlet connection The nitrogen storage tank comes with one female NPT connection located on each side Choose the...

Page 12: ...ons refer to the Wiring Diagram on page 34 Wiring location is in the nitrogen cabinet See Figure 6 6 Install NPT pipe or larger from the Air Maintenance Device AMD to the sprinkler system using standa...

Page 13: ...the Nitrogen Purging Procedure For installation instructions refer to the Model NGP SPV Bulletin 5401520 or Model INS PV Manual 5401532 supplied with each purge valve NGP SPV Potter Purge Valve 11197...

Page 14: ...abinet 5 Open the Bypass Valve Yellow Handle 6 Close the Nitrogen Inlet Valve Blue Handle and the Nitrogen Outlet Valve Blue Handle 7 Close the Nitrogen Test Port Valve Green Handle 8 Ensure the ball...

Page 15: ...If the unit takes longer than the prescribed time or does not stop running when the unit reaches 105 3 PSI Go to the Troubleshooting section page 21 15 The nitrogen generator is now ready to fill the...

Page 16: ...isory 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 S...

Page 17: ...ting nitrogen and purging the oxygen 2 Close the Bypass Valve Yellow Handle 3 Open the Nitrogen Inlet Valve Blue Handle 4 Open the Nitrogen Outlet Valve Blue Handle Figure 15 Nitrogen Outlet Valve Blu...

Page 18: ...y take 20 minutes NOTE The air compressor will cycle on and off during this process 5 Open the petcock on the nitrogen storage tank bottom tank and relieve the pressure until the Nitrogen Solenoid lig...

Page 19: ...ort Valve Green Valve open for more than 2 minutes The purity level may drop and fill times will be lengthened 8 When the nitrogen storage tank pressure reaches 75 3 PSI the Nitrogen Solenoid light wi...

Page 20: ...y to scroll through the log screens below To get out of the log press ALT then up arrow and press ALT again to get to main display PLC Operation Nitrogen Control Module Screen Nitrogen Solenoid Hours...

Page 21: ...ogen Outlet Valve Blue Handle Refer to Nitrogen Purging Procedure on page 17 2 If the unit is filling multiple systems or being left intentionally in Bypass Mode mute the Alarm Horn by pressing the bu...

Page 22: ...er in my drain hose Answer 1 Press the Filter Drain Solenoid Test Button on the inside of the cabinet to test if the drain is working 1 Ensure all the ball valves are in the correct position for Ni tr...

Page 23: ...Power ON the nitrogen generator The Power On light on the outside of the cabinet should turn green 10 Allow the pressure in the air storage tank and the nitrogen storage tank to rise The green Nitroge...

Page 24: ...0 6 Power the nitrogen generator ON The Power On light should be green 7 Allow the pressure to build to 105 3 PSI Make note the time it takes to reach this pressure This should typically take 4 minute...

Page 25: ...Handle 4 Open the Nitrogen Inlet Valve Blue Handle and the Nitrogen Outlet Valve Blue Handle 5 Exhaust the gas in the nitrogen storage tank by using the petcock on the bottom of the tank until the nit...

Page 26: ...PSI leak over 24 hours per NFPA 13 s new system leak rate unless specified otherwise To keep system in service the unit can run in Bypass Mode while arrangements are made to fix sprinkler system leak...

Page 27: ...nce Table Part Frequency 5 Micron Coalescing Filters Annually Nitrogen Purity Analyzer Sensor Battery as Required Pressure Settings Inspected Quarterly Air Compressor Maintenance Schedule Weekly Drain...

Page 28: ...place the filter elements using filters provided in the replacement kit 7 Check for leaks Air Compressor Replacement 1 Isolate the nitrogen generator and relieve pressure 2 Disconnect the power to the...

Page 29: ...ing and closing of the nitrogen solenoid is expected When the nitrogen solenoid valve is closed the membrane pressure gauge will read 0 The automatic drain valve automatically releases condensate from...

Page 30: ...alyzer 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 pe...

Page 31: ...Err Bat Battery voltage too low to recalibrate Replace batteries Changing the Batteries When the batteries need to be changed the device will indicate this in one of two ways The battery icon on the...

Page 32: ...rient the new sensor by aligning the red arrow on the sensor with the arrow in the back case A small tab is located on the back case that is designed to engage the sensor and prevent it from rotating...

Page 33: ...SOR MOTOR AIR TANK DRAIN SOLENOID FILTER DRAIN SOLENOID DRAIN TEST BUTTON ALARM TERMINALS CUSTOMER CONNECTIONS 9 8 N O N O 11 12 NITROGEN SOLENOID LIGHT DRAIN TEST BUTTON 4 OVERLOAD 6 5 7 3 2 1 CONTAC...

Page 34: ...Q1 10 COMPRESSOR MOTOR AIR TANK DRAIN SOLENOID FILTER DRAIN SOLENOID DRAIN TEST BUTTON ALARM TERMINALS CUSTOMER CONNECTIONS 9 8 N O N O 11 12 NITROGEN SOLENOID LIGHT DRAIN TEST BUTTON 4 OVERLOAD 6 5 7...

Page 35: ...OLES 8 PLCS 53 1 4 6 1 2 2 PLCS 13 1 2 4 13 1 8 5 1 2 4 PLCS 18 30 3 8 DRAIN CONNECTION 1 4 OD TUBING PUSH TO CONNECT 8 1 4 18 3 4 27 1 2 26 1 2 36 3 8 24 1 2 ASME RELIEF VALVE PS 1 PRESSURE SWITCH WI...

Page 36: ...arranty 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 EXC...

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