ADB L-852A User Manual Download Page 51

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Figure 29:

Typical 12” L-852D, Bi-Dir., Cordset Assembly Shown

44A6698/7/2

L-852A, B & C - LED P.S. 300mA W/O MON

44A6698/7/2

L-852A, B & C - LED P.S. 300mA W/O MON

60A3339-3

2 CORDSETS W/O MONITORING

44A7387-10

F-RANGE CORD SET OVERMOLD

Summary of Contents for L-852A

Page 1: ...ww adb air com Airfield Lighting Product Solutions Catalog User ManualUser Manual L 852A D J K ITCF F Range ICAO LED Taxiway Centerline Light FAA and ICAO Taxiway Centerline Lights 96A0460 Rev C 6 15 16 ...

Page 2: ...e for a period of 2 years from date of installation per FAA AC 150 5345 44 applicable edition NOTE See your sales order contract for a complete warranty description A 5 All Products LED Products of ADB manufactured and sold by ADB or its licensed representatives meets the corresponding requirements of FAA ICAO and IEC ADB will correct by repair or replacement per the applicable guarantee above at ...

Page 3: ...aking changes to equipment that have not been recommended or described in this manual or using parts that are not genuine ADB replacement parts or accessories Failing to make sure that auxiliary equipment complies with approval agency requirements local codes and all applicable safety standards if not in contradiction with the general rules Using materials or auxiliary equipment that are inappropr...

Page 4: ...ime to time in the contents thereof without obligation of ADB BVBA to notify any person of such revision or change Details and values given in this manual are average values and have been compiled with care They are not binding however and ADB BVBA disclaims any liability for damages or detriments suffered as a result of reliance on the information given herein or the use of products processes or ...

Page 5: ...e manual 5 2 1 2 Record of changes 5 2 2 Introduction 6 2 2 1 L852A D J K ITCF 6 2 2 1 1 Compliance with Standards 6 2 2 1 2 Uses 6 2 2 1 3 Operating Conditions 6 2 2 1 4 Packaging 6 2 2 1 5 Electrical Supply 7 2 2 1 6 The ITCF Light Fixture 7 2 2 2 Typical Configuration 7 2 2 2 1 Inner Pan Subassembly 8 2 2 2 2 Optical Unit L852A B C J and ICAO Straight 8 2 2 2 3 Optical Unit L852D K 8 2 3 Instal...

Page 6: ... 4 2 5 Replacing an LED Assembly 23 2 4 2 6 Replacing the Cord Set 24 2 4 2 7 Installing Power Supplies Heaters and Thermostats 25 2 4 2 8 Installing a New Optical Unit 28 2 4 2 9 Closing Optical Unit 29 2 4 3 Testing for Leaks 30 2 5 Troubleshooting 31 2 5 1 Troubleshooting Tips 31 3 0 Appendix A 33 3 1 Installation Guidance for In pavement Fixtures 33 3 1 1 Reference Documents 33 3 1 2 Mounting ...

Page 7: ...HOCK OR ARC FLASH Disconnect equipment from line voltage Failure to observe this warning may result in personal injury death or equipment damage ARC Flash may cause blindness severe burns or death WARNING WEAR PERSONAL PROTECTIVE EQUIPMENT Failure to observe may result in serious injury WARNING DO NOT TOUCH Failure to observe this warning may result in personal injury death or equipment damage CAU...

Page 8: ...ty devices as specified by applicable safety regulations If safety devices must be removed for installation install them immediately after the work is completed and check them for proper functioning prior to returning power to the circuit Failure to follow these warnings may result in serious injury or equipment damage IMPORTANT INFORMATION IEC International Standards and Conformity Assessment for...

Page 9: ...pment in humid flammable or explosive environments unless it has been rated for safe operation in these environments Never touch exposed electrical connections on equipment while the power is ON Failure to follow this instruction can result in equipment damage CAUTION IMPROPER STORAGE If equipment is to be stored prior to installation it must be protected from the weather and kept free of condensa...

Page 10: ...ngs will result in death or equipment damage DANGER ARC FLASH AND ELECTRIC SHOCK HAZARD Allow only qualified personnel to perform maintenance troubleshooting and repair tasks Only persons who are properly trained and familiar with ADB Airfield Solutions equipment are permitted to service this equipment An open airfield current circuit is capable of generating 5000 Vac and may appear OFF to a meter...

Page 11: ...hout increasing CCR size 2 1 About this manual The manual shows the information necessary to Install and maintain the L 852A D J K ITCF F Range LED Taxiway Centerline Light 2 1 1 How to work with the manual 1 Become familiar with the structure and content 2 Carry out the actions completely and in the given sequence 2 1 2 Record of changes PAGE REV DESCRIPTION CHECKED APPROVED DATE All A Released n...

Page 12: ... operating maintaining or repairing this equipment Read and carefully follow the instructions throughout this manual for performing specific tasks and working with specific equipment Failure to follow these warnings may result in serious injury or equipment damage FAA L 852A L Taxiway centerline on straight sections and clearance bar in category I and II applications 1 200 ft RVR FAA L 852B L Taxi...

Page 13: ...current edition Style 3 1 4 in 6 35mm height above grade The ICAO straight and curved fixture is designed to be in compliance with ICAO Annex 14 ITCF Fixture Fixture Load3 Isolation Transformer L 852D L L 852K L Unidirectional w out heater 21 VA 20 25 W Bidirectional w out heater1 27 VA 30 45 W Bidirectional w out heater2 25 VA per side 50 VA total 20 25 W per side Unidirectional with heater 56 VA...

Page 14: ... Subassembly The inner cover assembly includes the inner cover L 823 cord sets and the power supply as shown in Figure 1 2 2 2 2 Optical Unit L852A B C J and ICAO Straight Figure 2 Optical Unit 48A0444 XXX XXX for L852A B C J and ICAO Straight 2 2 2 3 Optical Unit L852D K Figure 3 Optical Unit 48A0443 XXX XXX for L852D and K 48A0444 X X X G R N Green Y L W Amber W H T WHITE R E D RED 48A0443 X X X...

Page 15: ...faces The rise of the cams between the face of washers is greater than the pitch of the bolt This creates tension that positively locks the bolt Use extreme care when placing the two halves of the lock washer together The cams or steps of each half of the lock washer must face each other 4 Per FAA AC 150 5340 30 Chapter 10 and FAA Engineering Brief No 83 it is extremely important that other types ...

Page 16: ...ED Taxiway Centerline Light 96A0460 Rev C Installation ADB Airfield Solutions All Rights Reserved 10 overstressed and is on its way to failure After corrosion occurs removal can cause the head to snap off The head can then become FOD ...

Page 17: ...urrent levels are coming into the fixture Measure the fixture input current on a sample of fixtures using a True RMS ammeter If current is not correct at each CCR step a Verify the primary isolation transformer current is correct at all steps If the primary current is incorrect the CCR may need to be calibrated or repaired b Incorrect primary isolation transformer current may also be caused by low...

Page 18: ...ch installs rigid steel and fittings backfills conduit trench with high early strength concrete 2 General contractor prepares and installs concrete pavement Electrical contractor makes a pilot core to find mud plate center point indent before final core drilling 3 Electrical contractor core drills concrete pavement Electrical contractor installs top section y flange ring space and lighting fixture...

Page 19: ... is designed for connection to a 6 6A or 20A series lighting circuit via an L 830 60 Hz or L 831 50 Hz isolation transformer Make sure you have the necessary tools and materials ready for installation not supplied Also consider other tools that might be needed based on site specific conditions Table 1 Suggested Tools and Materials for Installation and Repair WARNING Allow only qualified personnel ...

Page 20: ...ts Reserved 14 2 3 4 Snow Plow Ring Assembly Figure 4 Snow Plow Ring SEENOTE1OFPAGE5 44A6760 X3X0 TOP CVRASSEM BI DIR L 852B 44A7335 XXXXX BOTTOM PANASSEMBLY NO MONITOR STYLE 6 60A3202 THREADED DOWELPIN 62A2193 2 PIECE ITCF SNOW PLOW RING 64A0176 20 HBOLT 0 3750 16x1 25x1 25 N ACC0375 CEC LOCKWASHER PAIRS S S 3 8 2 EA ...

Page 21: ... DEEP GROOVE TYP L868B FLANGE RING 12 25 O D 3 4 THICK 5402 12Y WITH O RING GASKET TYP SEMI FLUSH LIGHT FIXTURE TYPE L 85X TYP NORDLOCK NL 3 8 2 PIECE LOCKWASHER OR EQUAL 3 8 16 STAINLESS STEEL BOLT TYP OF 6 0 75 GROUND WIRE 6 AWG L868B LIGHT BASE L 823 PRIMARY CONNECTOR TYP HEATSHRINK OPTIONAL GROMMET TRANSFORMER SUPPORT TYP ISOLATION TRANSFORMER SIZE AS REQUIRED L868B SPACER RING S 2 PVC CONDUIT...

Page 22: ...be connected with the mating receptacle from the L 830 or L 831 isolation transformer in the base Make sure that the connection is solid and secure Refer to Electrical Supply on page 7 for required isolation transformers NOTE Make sure items such as spacers shims and gaskets are installed on the light base as indicated on site plans specifications and drawings 5 Position the light assembly over th...

Page 23: ...nstalling and powering the fixture Figure 6 Example of a Shallow Base Installation WARNING Read installation instructions in their entirety before starting installation Failure to follow the installation guidance could result in bolt loosening or bolts breaking off resulting in catastrophic failure of the fixture and or the mounting system components Failure to follow these warnings may result in ...

Page 24: ...cal unit next to the base 3 Disconnect the light fixture wires from the power wires coming from the transformer s 4 Mount a serviced or new light fixture as described in Installation on L 868 Base in the Installation section NOTE Torque the six screws torque according to guidance given in Installation on L 868 Base on page 16 5 Take the replaced in pavement fixture unit back to the maintenance sho...

Page 25: ... 7 Pressure Release Screw 3 Remove the 4 screws The use of an impact driver may be required to unlock the screws Figure 8 Removing Screws 4 Insert small or medium flat blade screwdriver in the machined recess slot between cover and inner cover and turn it vertically to separate the inner cover from the top cover Figure 9 Separating Inner Cover from Top Cover 60A2602 PRESSURE RELEASE SCREW F RANGE ...

Page 26: ...er 4 Clean and degrease the prism chamber with any effective solvent NOTE Never use any abrasive substance This will scratch or frost the prism Use mineral spirits or alcohol 5 Apply a thin layer of lubricant MOLYKOTE BG87 INERTA or MOLYKOTE BG88 INERTA in the prism chamber using a small brush 6 Install a new sock seal over the prism 7 Push the prism gasket assembly in the prism pocket from the in...

Page 27: ...his plate holds the LEDs Do Not get grease on the LED surfaces or wires 3 Apply a drop of sealant Loctite 270 or equivalent to the last threads 4 Torque to 31 4 in lb 3 5 0 5 N m 5 Connect the wires to the circuit board as shown in Figure 17 6 Go to Installing a New Optical Unit on page 28 to complete the installation 4071 50 030 GASKET SLEEVE FRC FTZ FTD FEDD 4071 50 052 PRISM KEEPER PLATE 63A097...

Page 28: ...imly and the meter will indicate a low resistance When the LEDs are reverse biased the LEDs will not glow and the meter will indicate a high resistance 4 Test a known good LED assembly in the same manner to verify your meter s operation and typical meter indications Figure 13 Diode testing an LED assembly with a Fluke 87 Meter CAUTION Do no use the megger function or a resistive test of any meter ...

Page 29: ... tighten Torque the fixing screws to 31 4 inch pounds 3 5 0 5 N m 4 Connect the LED assembly wires to the power supply for that light 5 Close the unit FORASSEMBLIES WITHAN OBSCURED SIDE THISAREAIS DEPOPULATED NOTE 1 48A0443 XXX XXX WIDE BEAM LED LAMPASSEMBLY 44A7335 XXXXX BOTTOM PANASSEMBLY NO MONITOR STYLE 6 44A6760 XXXX TOPCOVERASSEMBLY 60A3332 ITCF L 852D OPTICALMTG BKT 64A0925 10 M5X10FLTPHILS...

Page 30: ... Bring the new ADB Airfield Solutions cord set through the base pan one wire per hole 7 Pull the wires into the pan assembly 8 Reinstall the cord set overmold by means of both Phillips screws 9 Remove about 0 2 inch 5mm of insulation from the wires 10 Crimp on the fast on terminals and connect to the terminal blocks ion the PCB 48A0444 YLW 300 ITCF NARROW BEAM LED LIGHT ENGINE YLW 300 44A6760 2220...

Page 31: ...RINGCONFIGURATION USEDWITHITCF XXX31XCONFIGURATIONS CONNECTIONTO POWERCORDSETINBASE THERMOSTAT M F M F F BASE PCB J1B J1A M M 1 HEATER F M F CONNECTIONTOJ1A PCBPOWERCONNINBASE F M M F CONNECTIONTOJ1A PCBPOWERCONNINBASE F M M J1A J1B PCB BASE F F M F M THERMOSTAT CONNECTIONTO POWERCORDSETINBASE ONEHEATERONETHERMOSTAT WIRINGCONFIGURATION USEDWITHITCF ATHRUC J BI DIR 2 CORD 1 HEATER INSTALLED ON HTR ...

Page 32: ... D J K ITCF F Range ICAO LED Taxiway Centerline Light 96A0460 Rev C Maintenance ADB Airfield Solutions All Rights Reserved 26 Figure 18 1 heater and 1 Thermostat per Side Figure 19 2 heaters and 1 Thermostat ...

Page 33: ...N APPLY2 INCH STRIPOF 61A0533 TO EACH PRISM BRAKETTO SECURE BARRIER 44A6943 XX0 L852J K COVERASSY 12 INCH W CLEAR L850A B F SERIES PRISM 44A6943 XX1 L852J K COVERASSY 12 INCH W F RANGE WIDE BEAM PRISM 44A6943 XX0 L852J K COVERASSY 12 INCH W CLEAR L850A B F SERIES PRISM 44A6943 XX1 L852J K COVERASSY 12 INCH W F RANGE WIDE BEAM PRISM 48A0444 YLW 495 LIGHTENGINE W KEYRESISTOR REBELLED GREEN 495 48A04...

Page 34: ...ndex pin in the inner cover with the index pin hole on the top cover 18 Press the inner cover on the top cover and secure with the countersunk screws Apply a drop of Loctite 222 to the last threads Torque screws to 22 4 in lb 2 5 0 5 N m 19 Proceed to the next section Testing for Leaks to check that the assembly is watertight WARNING Read the instructions in their entirety before starting installa...

Page 35: ... top assembly are correctly positioned and that the wires do not get damaged between both parts top cover and base 7 Press the inner cover of the inner pan assembly on the top cover and secure with the countersunk screws Apply a droplet of Loctite 222 to the last threads Torque screws to 22 4 inch pounds 2 5 0 5 N m 8 Check the watertightness of the assembly by replacing the pressure release screw...

Page 36: ... port is the opening created when the pressure release screw is removed 3 Attach an air line to the lock hose plug sleeve shown below 4 Pressurize to 20 psi 137 89 kPa 5 Submerge the fixture in a bucket or tank filled with water Check for air bubbles which would indicate a leak 6 Locate the leak source depressurize replace the leaky seal or part reassemble and repeat the test 7 If the leak is fixe...

Page 37: ... to Replacing the Cord Set on page 24 Use care when remounting fixture on the base can to ensure that the wires do not get pinched Defective isolation transformer Check transformer output current with a true RMS meter using a clamp on current probe This can be done by placing a short across the transformer secondary and verifying that the secondary current is present For 6 6A 6 6A transformers the...

Page 38: ...e top cover O ring Verify that the fixture is sealed Fixture wires pinched between base can and fixture A break in the fixture wire will cause water to be drawn into the fixture during the fixture s heating and cooling cycle when switched on and off Replace fixture leads Refer to Replacing the Cord Set on page 24 Use care when remounting fixture on the base can to ensure that the wires do not get ...

Page 39: ...erencecentre casa 2014 05 2124 html FAA AC 150 5340 30 Design and Installation Details for Airport Visual Aids is available at http www faa gov airports resources advisory_circulars FAA AC 150 5340 26 Maintenance of Airport Visual Aid Facilities is available at http www faa gov airports resources advisory_circulars FAA Engineering Brief 83 In Pavement Light Fixture Bolts is available at http www f...

Page 40: ...ring O ring and replace the O ring if necessary Mount the fixture using 3 8 x 16 Type 304 18 8 Stainless Steel Hex Cap Screws The bolt must be fully threaded Insure that the bolt s specific chemistry and physical characteristics and source of supply are known Use a bolt that is marked F593C or a verified equivalent At a minimum choose a bolt length that insures a 13 mm thread engagement in the bas...

Page 41: ...e mating surfaces Never reverse the halves such that the serrations face each other If anti seize lubricant is used on the bolt the following products are recommended Loctite LB 8009 Heavy Duty Anti Seize This is also available in stick form as Loctite LB 8070 Heavy Duty Anti Seize Stick If the airport is located in a more corrosive environment such as an airport located by the ocean use Loctite L...

Page 42: ...rical tape around the connection joint Install the fixture on the base can while insuring that the cordset does not become pinched between the fixture and the top of the base can Insure that the fixture is aimed in the proper direction Check if the fixture fits correctly on top of the base can Torque each bolt to 500 10 in lbs 56 5 1 1 N m Use a manual calibrated torque wrench to tighten the bolt ...

Page 43: ...ture 2 bolts 2 pins 4 bolts used on an 8 inch fixture Snow plow ring used on any fixture WARNING When a stainless steel base can is used take steps to insure that galling does not occur Galling is often referred to as a cold welding process which can occur when the surfaces of male and female threads come in contact under heavy pressure The risk of galling can be minimized with the following measu...

Page 44: ...fluoropolymer metallic ceramic coated SAE J429 Grade 2 carbon steel bolts WARNING Read installation instructions in their entirety before starting installation Do not use an impact type of torque wrench to tighten ceramic bolts Do not torque ceramic bolts to 500 in lbs 56 5 N m Do not use anti seize or threadlocking compounds with ceramic bolts Tighten to the bolt manufacturer s recommendation Fai...

Page 45: ...place it if necessary Mount the in pavement fixture or baseplate using a one inch 25 4 mm 3 8 x 16 Type 304 18 8 Stainless Steel bolt The bolt must be fully threaded To insure that the bolt s material characteristics are known verify that the bolt comes from a known source of supply Always use a new bolt Never reuse existing bolts If the base can is an area that may be subject to vibration conside...

Page 46: ...Under the top of the bolt head In the area underneath the bottom of the washers if used that contacts the in pavement fixture or baseplate The entire area of the bolt thread that attaches to the base can Applying a coating in these areas reduces the friction that occurs that resists the bolt being fully torqued Figure 26 Applying a coating to reduce friction during torquing Connect the fixture plu...

Page 47: ...er an 8 to 12 inch in pavement fixture adapter ring All bolts used on an 8 inch fixture mounted in an 8 to 12 inch snow plow ring WARNING When a stainless steel base can is used take steps to insure that galling does not occur Galling is often referred to as a cold welding process which can occur when the surfaces of male and female threads come in contact under heavy pressure The risk of galling ...

Page 48: ... bolts is restored to optimum values Bolts that loosen more often should be inspected and re torqued on a more frequent basis It is especially important to maintain a regular inspection schedule for LED fixtures Since LED fixtures operate more reliably and are not subject to removal replacement retorquing as frequently as would be seen with incandescent fixtures it is even more important to implem...

Page 49: ... L 852J L and L 852K L 3 See graphic below for L 852J K L color selection guidelines 4 Refers to older style 10 inch L 868A base can compliant to AC 150 5345 42C 10 inch base cans are no longer speci ed in the current FAA Advisory Circular 5 Not ETL Certi ed 6 Use Power option 4 for xtures with two cord sets or as directed by ADB 7 ITCF L xtures that can be used with Power option B are ITCF CX010B...

Page 50: ...ED A 1000mA2LEDSPARALLEL 1000mA2LEDSSERIES B 1000mA BD 2 LEDS PARALLEL C 550mA 2LEDSERIES D 650mA6ORLESSLEDS E 300mA2ORLESSLEDS SEENOTE2SHEET6 F 300mA2ORLESSLEDS SEENOTE3SHEET7 G DIRECTION UNI 1 BI 2 ITCF LED Narrow Beam LIGHT ENGINE 44A6760 2220 shown TOP CVRASSEM BI DIR 12 L 852B 44A6759 G20120 shown BOTTOM PANASSEM 1 CDST L 852A B 1 2 LED s W O MON 44A7387 10 F RANGE CORD SET OVERMOLD RESERVED ...

Page 51: ...ts Reserved 45 Figure 29 Typical 12 L 852D Bi Dir Cordset Assembly Shown 44A6698 7 2 L 852A B C LED P S 300mAW O MON 44A6698 7 2 L 852A B C LED P S 300mAW O MON 60A3339 3 2 CORDSETS W O MONITORING 44A7387 10 F RANGE CORD SET OVERMOLD ...

Page 52: ...ns All Rights Reserved 46 Figure 30 ITCF using a Intermediate Base Assembly 48A0444 YLW 300 ITCF NARROW BEAM LED LIGHT ENGINE YLW 300 44A7228 00101 PCBASSY LED PWR SUPPLY 50 60Hz SINGLE DRIVER NO MON FAA ICAO 44A7228 00201 PCBASSY LED PWR SUPPLY 50 60Hz DUALDRIVER NO MON FAA ICAO 44A7273 1 POWER INTERFACE BOARD LEAD LENGTH 1 ...

Page 53: ...FERENCE ONLY AS A GUIDE TO CONNECTION PATH LINES ARE FOR REFERENCE ONLY AS A GUIDE TO CONNECTION PATH HEATER CURRENT CONFIGURARTION UNI DIRECTIONAL BI DIRECTIONAL ONE POWER SUPPLY THERMOSTAT N O 60 OPEN 80 CLOSE PWR SUPPLY HEATER CURRENT INPUT CURRENT CONFIGURATION BI DIRECTIONAL TWO POWER SUPPLIES CURRENT INPUT THERMOSTAT N O 60 OPEN 80 CLOSE PWR SUPPLY HEATER CURRENT INPUT PWR SUPPLY HEATER THER...

Page 54: ...760 2120 44A6760 2130 44A6760 2220 44A6760 2230 44A6760 2320 4071 50 030 GASKET SLEEVE FRC FTZ FTD FEDD 4071 50 052 PRISM KEEPER PLATE 62A2194 X TOP COVER MACHINING FRC FTD L 850A L 852 63A0979 1 PRISM F RANGE WIDE BEAM 63A0993 2 PRISM F RNG NARR BM OPT GLASS 63A0986 PRISM FLAT SEAL F RANGE 64A0936 13 SHOULDER SCREW M5 X 13MM 7080 90 335 O RING F RANGE FIXTURES 44A6760 1120 44A6760 2120 44A6760 22...

Page 55: ... THRMSTAT NO HERM STUD N O C80F O60F 44A6943 210 L852J K COVER ASSY UNI DIR 12 INCH W CLEAR L850 A B F SERIES PRISM 48A0444 YLW 495 NARROW BEAM LED LAMP ASSEM AMBER 63A0993 2 PRISM F RNG NARR BM OPT GLASS 61A0459 HEATER DISC 2 LEADS NOTE LOCATION OF SINGLE THERMOSTAT ONE CORD CONFIGURATION SEE NOTE 5 A THIN LAYER OF THERMAL COMPOUND 67A0033 IS TO BE APPLIED BETWEEN HEATER S COVER ITCF K10310 THERM...

Page 56: ... ITCF Parts Part No Description Figure Notes 61A0459 Arctic kit heater Heater Disc 2 Leads Figure 30 44A7387 10 Small Pan cord set Figure 28 Figure 29 4072 42 351 Intermediate Pan cord set 2 Pin 18 Figure 30 70A0329 Cord set terminal female disconnect Figure 28 Figure 29 48A0444 XXX XXX LED light engine L 852A B C J green Figure 28 48A0443 XXX XXX LED light engine L 852D K green Figure 28 Figure 3...

Page 57: ...BA Niederlassung Deutschland Von der Tann Str 31 90439 Nürnberg Deutschland Tel 49 0 911 2105 61 60 Fax 49 0 911 2105 61 61 Email info ADB GER adb air com ADB Succursale France Paris Nord 2 22 Avenue des Nations BP 55428 Villepinte F 95944 Roissy Charles de Gaulle France Tel 33 1 49 89 66 30 Fax 33 1 49 89 17 81 ADB Asia Pacific Regional HQ Unit A 10 01 Level 10 Empire Tower Jalan SS16 1 47500 Sub...

Page 58: ... 1930 Zaventem Belgium Tel 32 2 722 17 11 Fax 32 2 722 17 64 Email info adb air com ADB Airfield Technologies Ltd China Room 901 9F Fang Heng Intl Plaza Building C No 6 Futong East Road Chaoyang District Beijing 100102 P R China Tel 86 10 8476 0106 Fax 86 10 8476 0090 ADB Airfield Solutions LLC 977 Gahanna Parkway Columbus OH 43230 USA Tel 1 614 861 1304 Fax 1 614 864 2069 Web www adb air com Emai...

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