Document UT-MT-0699
Page 15 di 27
Edition 12/02/2019
Supersedes edition
26/07/2016
LED LUMINOUS GUIDANCE SIGN LIGS01
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
5
MAINTENANCE
ATTENTION!
Never operate on electrical and electronic equipment while the CCR is ON.
5.1
Periodical Checks
Daily
Check for burned-out led
Monthly
Check for dirty panels
Semi-Annual
Check for loose wire connections
Check for cracked or deteriorated wires
5.2
LEDs Luminous Source Replacement
LEDs used in the sign have a long average life. When replacement becomes necessary, follow the
procedure below:
a)
Be sure that the series circuit is de-activated (regulator unit CCR off or Main switch of the
230Vac line open according to the type of sign); in any case turn the main switch to OFF position
b)
Loose the four screws of the cover and remove it
c)
Disconnect the connectors of the damaged LEDs luminous source and loosen the four nuts at
the angles of the support, then slide and lift the support to extract it from its seat
d)
Unscrew the six screws of the damaged LEDs luminous source, replace it and restore the initial
condition
e)
Mount the top cover with reverse procedure
f)
Turn the main switch to ON position, turn On the CCR or close the 230V main switch and check
the correct operation of the sign.
