Document UT-MT-0779_EN
Page 7 of 37
Edition 23/04/2019
Supersedes edition 06/03/2019
LED INSET RUNWAY EDGE LIGHT LIRE
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1
GENERAL
LIRE inset LED runway edge light is high intensity, bidirectional or unidirectional, 12”
steady burning type.
These fixtures are intended for use as runway edge, in order to provide a visual aid to
the moving aircraft.
LIRE lights are in compliance with ICAO Annex 14 Vol.1, EASA CS-ADR DSN, FAA AC
150/5345-46 (Style 3), IEC TS 61827 (Style 4), CASA Manual of Standard part 139 and
NATO-STANAG 3316.
The fixtures described in this manual are designed to be connected to series circuit,
replacing those equipped with incandescent lamps, fed through standard isolation
transformers connected to CCR with variable current from 2.8 A to 6.6 A.
Location of these fittings shall be in compliance with ICAO - Annex 14, STANAG 3316
and FAA 150/5340-30.
2
MAIN FEATURES
Each light assembly consists of a removable fixture and a shallow base receptacle.
The fixture is waterproof and designed to withstand aircraft impact and roll-over
loads without damage.
The fixture can be bidirectional type (bidirectional dome equipped with four LED
modules, operating at the same time or independently) or unidirectional type
(unidirectional dome equipped with only two LED module).
It is also possible to obtain an unidirectional light from a bidirectional dome choosing
the “S – Screened” option; this configuration includes a bidirectional dome mounting
only two LED module.
Power consumption for bidirectional fixture is 65 VA (1 plug) and 62 VA (2 plugs),
unidirectional fixture is 31 VA (1 plug).
2.1
REMOVABLE LIGHT UNIT
The removable fixture mainly consists of a dome, an optical assembly, a power
supply/control board, and a lower cover.
2.1.1
Dome
The dome is made of treated drop-forged aluminium and includes four windows to
seat the prisms, complete with gaskets, kept in the proper position by means of a
mounting plate fixed with HSCS M5x12 screws. In correspondence of the windows,
the dome is outside provided with identification letters “A” and “B”.
The dome is provided with six through holes for fastening the light unit to the base.
