ADB L-852A User manual

Signature Series™

L-852 A-D Style 3 LED

Taxiway Centerline Inset Light

Document No. 96A0311

Issued: March 2, 2005

Rev. F: Nov 08, 2009

ETL Certified to FAA AC 150/5345-46C

and FAA LED Performance Specification per Engineering Brief 67

ADB Airfield Solutions

L-852C-D ITCL Taxiway Centerline Inset Lights Record of Changes

96A0311F Page ii

Page Rev Description EC No. Checked Approved Date

All A Released manual. 01073 WT/EPD

GM

WT 3/2/05

2-0, 2-3, 7-2 B Added artic kit wattage and corrected typo in

Table 2-1 and Fig 7-1

01397 WT WT 3/7/05

Iii, 3-5 C Corrected formatting in Section 3

01413 WT WT 4/8/05

Cover & pgs

2-1, 2-3, 2-5

& 2-7

D Removed L852A and C certification notation from

manual

01840 WT WT 10/4/07

All E Removed references to L852A and L852B.

Revised part order code numbers

01842 WT WT 10/8/07

all F

Edited header and footer, parts updated

2477 ER GM 11/8/09

Record of Changes

L-852C-D ITCL Taxiway Centerline Inset Lights Table of Contents

96A0311F Page iii

Record of Changes ....................................................................................................................................................................... ii

Table of Contents ........................................................................................................................................................................ iii

Warranties ................................................................................................................................................................................... vi

Section 1 Safety ................................................................................................... 1-1

1. Introduction ...................................................................................................... 1-1

2. Safety Symbols ................................................................................................ 1-1

3. Qualified Personnel .......................................................................................... 1-2

4. Intended Use .................................................................................................... 1-2

5. Installation ....................................................................................................... 1-3

6. Operation ......................................................................................................... 1-4

7. Action in the Event of a System or Component Malfunction .......................... 1-4

8. Maintenance and Repair .................................................................................. 1-4

Section 2 Description ........................................................................................... 2-1

1. Introduction ...................................................................................................... 2-1

2. Optical Assembly ............................................................................................. 2-2

3. Optical Assembly ............................................................................................. 2-3

4. Inner Pan Subassembly .................................................................................... 2-3

5.

6. F-Range Light Fixture: Required Equipment .................................................. 2-4

7. Specifications ................................................................................................... 2-4

Input ............................................................................................................. 2-4

Light Source ................................................................................................. 2-4

Expected LED Life ...................................................................................... 2-4

Light Source ................................................................................................. 2-4

Photometric Data .......................................................................................... 2-5

Isolation Transformers ................................................................................. 2-5

Prisms ........................................................................................................... 2-5

Light Beam ................................................................................................... 2-5

Mounting ...................................................................................................... 2-5

Environmental Operating Conditions ........................................................... 2-5

Dimensions ................................................................................................... 2-6

Weight .......................................................................................................... 2-6

Section 3 Installation ........................................................................................... 3-1

1. Introduction ...................................................................................................... 3-1

2. Unpacking ........................................................................................................ 3-1

3. Input Requirement Summary ........................................................................... 3-1

4. Installation on L-868B Base ............................................................................ 3-2

5. Mounting and Connections………………………………………………… .3-5

Table of Contents

Safety

Description

Installation

L-852C-D ITCL Taxiway Centerline Inset Lights Table of Contents

96A0311F Page iv

Section 4 Maintenance ......................................................................................... 4-1

1. Introduction ...................................................................................................... 4-1

2. Maintenance Schedule ..................................................................................... 4-1

3. Maintenance Procedures .................................................................................. 4-2

Cleaning Light Channel and Prism .............................................................. 4-2

Retorquing Mounting Bolts .......................................................................... 4-2

Removing L-868 Base Water ....................................................................... 4-4

Lifting Optical Unit Out of Base .................................................................. 4-4

Testing for Leaks .......................................................................................... 4-5

Section 5 Troubleshooting ................................................................................... 5-1

1. Introduction ...................................................................................................... 5-1

2. Troubleshooting Procedures ............................................................................ 5-2

Section 6 Repair ................................................................................................... 6-1

1. Introduction ...................................................................................................... 6-1

2. Opening Assembly ........................................................................................... 6-1

3. Replacing LED Assembly ................................................................................ 6-4

4. Replacing Prism and Prism Gasket .................................................................. 6-5

5. Closing and Testing Light Assembly ............................................................... 6-7

Section 7 Parts ..................................................................................................... 7-1

1. Introduction ...................................................................................................... 7-1

2. Using the Illustrated Parts List ......................................................................... 7-1

3. F-Range Low Profile Light Fixture Ordering Code ......................................... 7-2

4. F-Range L-852C-D Optical Assembly Parts ................................................... 7-3

5. Numerical Parts List and Recommended Spare Parts ...................................... 7-9

Figure 2-1 L-852C-D F-Range Inset Light Fixture ............................................. 2-1

Figure 2-2 Optical Assembly .............................................................................. 2-2

Figure 2-3 Prisms ................................................................................................ 2-3

Figure 2-4 Inner Pan Subassembly ..................................................................... 2-3

Figure 3-1 Typical Installation on FAA L-868B Base ........................................ 3-2

Figure 3-2 Mounting .......................................................................................... 3-5

Figure 3-3 Input ID Marker ............................................................................... 3-5

Figure 4-1 Retorquing Mounting Bolts ............................................................... 4-3

Figure 4-2 Pressure Test Fitting Assembly ......................................................... 4-5

Figure 6-1 Removing Pressure Release Screw ................................................... 6-1

Figure 6-2 Disconnecting LED Assemblies ........................................................ 6-2

Figure 6-3 Replacing Cover/Inner Cover Gasket ................................................. 6-3

Figure 6-4 Replacing Prism and Prism Gasket ................................................... 6-6

Figure 6-5 Closing Light Fixture ........................................................................ 6-7

Figure 7-1 L-852C-D LED F-Range Inset Lights Part Number ......................... 7-2

Figure 7-2 L-852C F-Range Light Fixture .......................................................... 7-3

Figure 7-3 L-852D F-Range Light Fixture. ……………………………… 7-3

Figure 7-4 Inner Cover - exterior…………………………………………….7-4

Figure 7-5 Inner Cover – interior ……………………………………………7-4

Figure 7-6 LED Assembly without Arctic Kit ……………………………..7-5

Figure 7-7 LED Assembly Gasket…………………………………….……..7-5

Maintenance

Troubleshooting

Repair

Parts

List of Figures

L-852C-D ITCL Taxiway Centerline Inset Lights Table of Contents

96A0311F Page v

Figure 7-8 Prism L852 D – Green Wide Only……………………..…………7-6

Figure 7-9 Prism L852C – Green and Yellow..………………………………7-6

Figure 7-10 Prism L852D Yellow Wide Only……………………………….7-6

Figure 7-11 Prism Seal …………………………………………………….7-7

Figure 7-12 Arctic Kit Thermostat………………………………………….7-7

Figure 7-13 Arctic Kit Assemblies………………………………………….7-8

Table 2-1 F-Range Series Light Fixtures ............................................................ 2-1

Table 2-2 Required Equipment Supplied ............................................................ 2-4

Table 2-3 Required Equipment Not Supplied ..................................................... 2-4

Table 2-4 Photometric Data ................................................................................ 2-5

Table 2-5 Light Beam ......................................................................................... 2-5

Table 2-6 Connectors Supplied ........................................................................... 2-5

Table 2-7 F-Range Light Dimensions ................................................................. 2-6

Table 3-1 Determining Torque Based on "K" Factor .......................................... 3-4

Table 4-1 F-Range Light Fixture Maintenance ................................................... 4-1

Table 4-2 Determining Torque Based on "K" Factor .......................................... 4-3

Table 6-1 Parts List for Replacing LED Assembly ............................................. 6-4

Table 6-2 Parts List for Replacing Prism and Prism Gasket ............................... 6-5

List of Figures – cont’d

List of Tables

L-852C-D ITCL Taxiway Centerline Inset Lights Warranties

96A0311F Page vi

Products of ADB Airfield Solutions manufacture are guaranteed against

mechanical, electrical, and physical defects (excluding lamps) for a period of one

year from the date of installation or a maximum of two years from the date of

shipment and are guaranteed to be merchantable and fit for the ordinary purposes

for which such products are made.

ADB Airfield Solutions will correct by repair or replacement, at its option,

equipment or parts which fail because of mechanical, electrical or physical

defects, provided that the goods have been properly handled and stored prior to

installation, properly installed and properly operated after installation, and

provided further that Buyer gives ADB Airfield Solutions written notice of such

defects after delivery of the goods to Buyer.

ADB Airfield Solutions reserves the right to examine goods upon which a claim is

made. Said goods must be presented in the same condition as when the defect

therein was discovered. ADB Airfield Solutions furthers reserves the right to

require the return of such goods to establish any claim.

ADB Airfield Solutions’ obligation under this guarantee is limited to making

repair or replacement within a reasonable time after receipt of such written notice

and does not include any other costs such as the cost of removal of defective part,

installation of repaired product, labor or consequential damages of any kind, the

exclusive remedy being to require such new parts to be furnished.

ADB Airfield Solutions’ liability under no circumstances will exceed the contract

price of goods claimed to be defective. Any returns under this guarantee are to be

on a transportation charges prepaid basis. For products not manufactured by, but

sold by ADB Airfield Solutions, warranty is limited to that extended by the

original manufacturer.

This is ADB Airfield Solutions’ sole guarantee and warranty with respect to the

goods; there are no express warranties or warranties of fitness for any particular

purpose or any implied warranties of fitness for any particular purpose or any

implied warranties other than those made expressly herein. All such warranties

being expressly disclaimed.

Warranties

L-852C-D ITCL Taxiway Centerline Inset Lights Warranties

96A0311F Page vii

This manual could contain technical inaccuracies or typographical errors. ADB

Airfield Solutions reserves the right to revise this manual from time to time in the

contents thereof without obligation of ADB Airfield Solutions 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 Airfield Solutions

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 equipment to

which this manual refers. No warranty is made that the use of the information or

of the products, processes or equipment to which this manual refers will not

infringe any third party’s patents or rights. The information given does not release

the buyer from making their own experiments and tests.

Disclaimers

L-852C-D ITCL Taxiway Centerline Inset Lights Safety

96A0311F Page 1-1

Section 1

Safety

This section contains general safety instructions for using your ADB Airfield

Solutions equipment. Some safety instructions may not apply to the equipment in

this manual. Task- and equipment-specific warnings are included in other

sections of this manual where appropriate. Note all warnings and follow all

instructions carefully. Failure to do so may result in personal injury, death, or

property damage.

To use this equipment safely,

• refer to the FAA Advisory Circular AC 150/5340-26, Maintenance of Airport

Visual Aids Facilities, for instructions on safety precautions.

• observe all safety regulations. To avoid injuries, always remove power prior

to making any wire connections and touching any parts. Refer to FAA

Advisory Circular AC 150/5340-26.

• read and become familiar with the general safety instructions provided in this

section of the manual before installing, operating, maintaining, or repairing

this equipment.

• read and carefully follow the instructions given throughout this manual for

performing specific tasks and working with specific equipment.

• store this manual within easy reach of personnel installing, operating,

maintaining, or repairing this equipment.

• follow all applicable safety procedures required by your company, industry

standards, and government or other regulatory agencies.

• obtain and read Material Safety Data Sheets (MSDS) for all materials used.

Become familiar with the safety symbols presented in this section. These symbols

will alert you to safety hazards and conditions that may result in personal injury,

death, or property and equipment damage.

WARNING: Failure to observe this warning may result in personal

injury, death, or equipment damage.

1. Introduction

2. Safety Symbols

L-852C-D ITCL Taxiway Centerline Inset Lights Safety

96A0311F Page 1-2

WARNING: Risk of electrical shock. Failure to observe this warning

may result in personal injury, death, or equipment damage.

WARNING: Disconnect equipment from line voltage. Failure to

observe this warning may result in personal injury, death, or equipment

damage.

WARNING: Wear safety goggles. Failure to observe may result in

serious injury.

CAUTION: Failure to observe may result in equipment damage.

The term qualified personnel is defined here as individuals who thoroughly

understand the equipment and its safe operation, maintenance, and repair.

Qualified personnel are physically capable of performing the required tasks,

familiar with all relevant safety rules and regulations and have been trained to

safely install, operate, maintain, and repair the equipment. It is the responsibility

of the company operating this equipment to see that its personnel meet these

requirements.

WARNING: Use of this equipment in ways other than described in

this manual may result in personal injury, death, or property and

equipment damage. Use this equipment only as described in this

manual.

2. Safety Symbols (contd.)

3. Qualified Personnel

4. Intended Use

L-852C-D ITCL Taxiway Centerline Inset Lights Safety

96A0311F Page 1-3

ADB Airfield Solutions cannot be responsible for injuries or damages resulting

from nonstandard, unintended applications of its equipment. This equipment is

designed and intended only for the purpose described in this manual. Uses not

described in this manual are considered unintended uses and may result in serious

personal injury, death, or property damage. Unintended uses may result from

taking the following actions:

• making changes to equipment that have not been recommended or described

in this manual or using parts that are not genuine ADB Airfield Solutions

replacement parts

• failing to make sure that auxiliary equipment complies with approval agency

requirements, local codes, and all applicable safety standards

• using materials or auxiliary equipment that are inappropriate or incompatible

with your ADB Airfield Solutions equipment

• allowing unqualified personnel to perform any task

Read the installation section of all system component manuals before installing

your equipment. A thorough understanding of system components and their

requirements will help you install the system safely and efficiently.

WARNING: Failure to follow these safety procedures can result in

personal injury or death.

• Allow only qualified personnel to install ADB Airfield Solutions and

auxiliary equipment. Use only approved equipment. Using unapproved

equipment in an approved system may void agency approvals.

• Make sure all equipment is rated and approved for the environment in which

you are using it.

• Follow all instructions for installing components and accessories.

• Install all electrical connections to local code.

• Use only electrical wire of sufficient gauge and insulation to handle the rated

current demand. All wiring must meet local codes.

• Route electrical wiring along a protected path. Make sure they will not be

damaged by moving equipment.

4. Intended Use (contd.)

5. Installation

L-852C-D ITCL Taxiway Centerline Inset Lights Safety

96A0311F Page 1-4

• Protect components from damage, wear, and harsh environment conditions.

• Allow ample room for maintenance, panel accessibility, and cover removal.

• Protect equipment with safety 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.

Only qualified personnel, physically capable of operating the equipment and with

no impairments in their judgment or reaction times, should operate this

equipment.

Read all system component manuals before operating this equipment. A thorough

understanding of system components and their operation will help you operate the

system safely and efficiently.

• Before starting this equipment, check all safety interlocks, fire-detection

systems, and protective devices such as panels and covers. Make sure all

devices are fully functional. Do not operate the system if these devices are

not working properly. Do not deactivate or bypass automatic safety

interlocks or locked-out electrical disconnects or pneumatic valves.

• Never operate equipment with a known malfunction.

• Do not attempt to operate or service electrical equipment if standing water is

present.

• Use this equipment only in the environments for which it is rated. Do not

operate this equipment 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.

Do not operate a system that contains malfunctioning components. If a

component malfunctions, turn the system OFF immediately.

• Disconnect and lock out electrical power.

• Allow only qualified personnel to make repairs. Repair or replace the

malfunctioning component according to instructions provided in its manual.

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.

• Always use safety devices when working on this equipment.

• Follow the recommended maintenance procedures in your equipment

manuals.

5. Installation (contd.)

6. Operation

7. Action in the Event of a

System or Component

Malfunction

8. Maintenance and Repair

L-852C-D ITCL Taxiway Centerline Inset Lights Safety

96A0311F Page 1-5

• Do not service or adjust any equipment unless another person trained in first

aid and CPR is present.

• Connect all disconnected equipment ground cables and wires after servicing

equipment. Ground all conductive equipment.

• Use only approved ADB Airfield Solutions replacement parts. Using

unapproved parts or making unapproved modifications to equipment may

void agency approvals and create safety hazards.

• Check interlock systems periodically to ensure their effectiveness.

• Do not attempt to service electrical equipment if standing water is present.

Use caution when servicing electrical equipment in a high-humidity

environment.

• Use tools with insulated handles when working with electrical equipment.

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-1

Section 2

Description

See Figure 2-1. This section describes the ADB Airfield Solutions

F-Range Type L-852C-D ITCL Taxiway Centerline Inset Lights referred to in

Table 2-1. The ITCL F-Range L-852C and L852D inset light fixtures are

manufactured and certified to FAA specification AC 150/5345-46C and FAA,

LED supplemental performance requirements per FAA Engineering Brief 67,

Style 3 (≤ ¼ inch Height Above Grade). The FAA standard fixture is 12 inch

diameter and mounts directly on a FAA L-868B, deep light base. The fixture is

intended for use on 4.8 A-6.6 A (3-Step) airfield series circuits. The L-852C & D

fixtures are also available in a 10-inch version that mounts on a FAA L868A light

base, and the L852C and L-852D 2-piece mounts on a L-868B light base.

Table 2-1 F-Range Series Light Fixtures

Use Taxiway Centerline (CAT. II-III applications)

Description Uni or bi-directional

Type L-852C-D FAA straight sections L852C FAA curved sections L852D

Color Green or yellow Green or yellow

Figure 2-1 L-852C-D Inset Light Fixture – 12 Inch

1. Introduction

L852C-D ITCL Inset

Light Assembly

Location of

Color Dot

Light Channel

Prism and

LED

Mdl

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-2

The beam colors for the F-Range light fixtures are identified by colored dot(s)

atop the window. A green dot, for example, refers to a corresponding green LED

source. A yellow dot refers to a corresponding yellow LED source. Dot is placed

above each window area.

See Figure 2-2 for the optical assembly. See Figure 2-3 for the L852C and L852D

prism. The F-Range series light fixture optical assembly consists of one or two

unidirectional or two bi-directional LEDs and prisms. Refer to Specifications in

this section for details on LEDs and prisms.

Figure 2-2 Optical Assembly

1. Introduction (contd.)

2. Optical Assembly

Prism – Located under

LED Assembly

LED PCB Leads

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-3

L-852D Green Only L-852C Green & Yellow L-852D Yellow Only

Figure 2-3 Prisms – See Section 7, Fig 7-8, 7-9, 7-10 for detailed information

See Figure 2-4. The inner cover assembly is comprised of the inner

cover, L-823 cordset(s), and pressure release screw.

Figure 2-4 Inner Pan Assembly

3. Optical - Prisms

4. Inner Pan Cover Assembly

Pressure Relief Screw

Inner Pan Cover

Assembly

L823 cordset(s)

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-4

Refer to Table 2-2 for required equipment that is supplied. Refer to

Table 2-3 for required equipment that is not supplied. Refer to the Parts section

for part numbers.

Table 2-2 Required Equipment Supplied

Description Quantity

F-Range inset light, with LED assembly ITCL-XXXX 1

Instruction manual – 96A0311 1 per order

Table 2-3 Required Equipment Not Supplied

Description Quantity

Torque wrench (0 to 200 in-lb) (0

−

22.6 Nt-M)

1

Alignment jig 1

Diamond-faced core drill, 13 in. (330 mm diameter) 1

Diamond-faced saw, 3/8 in. (9.525 mm) thick 1

Crimping tool 1

Small water suction pump 1

L-830 isolation transformer – See Table 2-5 1 or 2

Set of fiber brushes 1

Set of socket wrenches, 1/2 in. (12.7 mm) drive 1

Set of screwdrivers, one with 3/8 in. (9.525 mm) minimum

blade width

1

Silicone grease As required

Joint sealing filler As required

Pressure test fitting assembly – See parts list 1

Lifting tool - See page 3-9

1

This subsection provides specifications for the F-Range Type L-852C-D ITCL

inset light fixtures.

6.6 A through one or two series transformer(s). Light fixtures have been designed

to work with the properly sized FAA compliant transformers. Severely under

loaded transformers may put out too much current which may cause the light

fixture to put out the wrong amount of light or cause flickering. See Table 2-5.

LEDs, 5 W per side

56,000 hours at 6.6 A

One watt high lumen density (brightness) LED

40 watts

5. F-Range Light Fixture:

Required Equipment

6. Specifications

Input

Light Source

Expected LED Life

Light Source

Arctic Heater Wattage

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-5

.

Table 2-4 Photometric Data

F-Range Type Beam Color Average Intensity (cd) Main Beam Aperture

FAA Spec Min

C Green/Yellow 200

D Green/Yellow 100

Horizontal

(°)

Vertical

(°)

L-852C

FAA

Green 607 (C)

-3.5 to +3.5

1 to 8

Yellow 309 (C)

L-852D

Green 105 (D)

-30 to + 30

1 to 10

Yellow 132(D)

Table 2-5 Transformers

Fixture w/o heater w/heater No. of Cordsets

L-852C-D

Bi-Directional

L-830-1

(30/45W)

L830-3

(65W)

1

L852C-D

Unidirectional

L-830-1

(30/45W)

L-830-1

(30/45W)

1

L852A/C Green and Yellow, L-852B/B Green Wide Only, and L852B/D Yellow

Wide Only. See Figures 7-8, 7-9, and 7-10 in Section 7.

Table 2-6 Light Beam

F-Range Type Light Beam

L-852C-D Switchable light direction bi-directional

L-852C-D Bi-directional (standard)

L-852C-D Unidirectional (standard)

The F-Range light fixtures mount on an optional ADB Airfield Solutions shallow

base or on a 12-inch- (304.8-mm-) diameter deep L-868B light base (standard).

Refer to Table 2-6 for connectors supplied.

Table 2-7 Connectors Supplied

If you order this... This connector is supplied...

L-852C-D fixture without shallow base L-823 connector

L-852C-D fixture with shallow base Main lead assembly

The F-Range light fixture is designed to operate under the conditions presented

below for temperature, altitude, and relative humidity.

Photometric Data

Isolation Transformers

Prisms

Light Beam

Mounting

Environmental Operating

Conditions

L-852C-D ITCL Taxiway Centerline Inset Lights Description

96A0311F Page 2-6

Temperature

-55 to + 55 °C (-67 to +131 °F)

Altitude

Sea level to 10,000 feet (3000 m)

Relative Humidity

Up to 100 %

Table 2-8 F-Range Light Dimensions

FAA

Type

FAA

Style

FAA

Class

Outside

Diameter

Bolt-circle

diameter

L852C-D

12-Inch

3 2 11.94 in. (303.28 mm) 11.25 in. (285.75 mm)

L852C-D

10-Inch

3 2 9.94 in. (252.47mm) 9.25 in. (234.95mm)

The weight of the L-852C-D light fixture is 14.7 lb (6.7 kg)

Options 1 or 2 L823 Cordsets

Bidirectional or Unidirectional

Arctic Kit

Dimensions

Weight

L-852C-D ITCL Taxiway Centerline Inset Lights Installation

96A0311F Page 3-1

Section 3

Installation

WARNING: Allow only qualified personnel to perform the following

tasks. Observe and follow the safety instructions in this document and

all other related documentation.

This section provides instructions for installing the F-Range inset lights. Refer to

airport project plans and specifications for the specific installation instructions.

See FAA AC 150/5340-30 for additional installation instructions. The installation

shall conform to the applicable sections of the National Electric Code and local

codes.

Each unit is individually packaged in a durable, cushioned, corrugated cardboard

carton. To avoid unnecessary damage to the light assembly, unpack the carton at

the installation site.

To unpack the carton, open the flaps and carefully remove the top packing

material. Thread an eyebolt into each of the two opposite threaded holes. Run a

rod through the eyebolts and lift the light assembly from the shipping carton. Set

the light assembly in a protected area.

If damage to any equipment is noted, file a claim form with the carrier

immediately. The carrier may request to inspect the equipment.

The F-Range light fixture is designed for connection to a 6.6A series lighting

circuit via an L-830 isolation transformer. Refer to

Specifications in the Description section for required isolation transformer.

1. Introduction

2. Unpacking

3. Input Requirement

Summary

L-852C-D ITCL Taxiway Centerline Inset Lights Installation

96A0311F Page 3-2

The light assembly is shipped complete, including the LED assembly, and is ready

for installation. Figure 3-1 is typical of all inset light installations. See FAA AC

150/5340-30 for additional installation instructions on L-868 light bases.

To install the inset light fixture on the L-868B base, perform the following

procedure:

1. See Figure 3-1. Clean the base receptacle. Make sure that the base receptacle

does not contain water and is completely clean and dry. The mating surfaces

must be clean and free of foreign particles.

Figure 3-1 Typical Installation on FAA L-868B Base

*Note: These items are per site specifications and must be mounted onto the light base

before the inset fixture is installed. Inset fixture may also be mounted directly to the light

base flange. See

**Note: Quantity of these items will increase if inset light has switchable option.

CAUTION: Remove all debris found on all mounting surfaces of the light base

or associated spacers, flange rings, etc., before installing the light fixture. Failure

to remove debris can induce damaging stresses in the light fixture when the

mounting bolts are torqued and the fixture is subjected to aircraft roll over loads.

See Figure 4-1 for bolt torquing instructions.

4. Installation on L-868B Base

Inset Light Assembly

Type per site specifications

*Grooved Flange Ring or

*Flange Ring with Pavement Ring

**L-823 Cordset Connection

to L-830 Secondary Plug

*Spacer and/or Shims

**L-830 Primary Connection

to Field Circuit – 2 Places

**L-830 Series Isolation

Transformer

L868B or L867B

Light Base

External Grounding

Lug for Counterpoise

Internal Grounding

Lug for Inset Light

Conduit

And Threaded Hub or

Grommet

Mounting Hardware –

Typical 6 Places

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