Document UT-MT-0780_EN
Page 29 of 39
Edition 03/10/2015
Supersedes edition 03/11/2014
LED INSET THRESHOLD AND THRESHOLD WING BAR LIGHT L
RTH04
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
O-Ring around the dome (Figure 18 – n°4);
O-Ring between fixture and shallow base (Figure 18 – n°7);
The fixture is ready to be field installed.
1.
Dome
2.
O-Ring between
dome and lower
cover
3.
O-Ring between
dome and lower
cover
4.
O-Ring around the
dome
5.
Lower Cover
6.
12” Shallow base
7.
O-Ring between
fixture and 12”
Shallow base
Figure 18 – Fixture Gaskets
4.3
PRIMS CLEANING
4.3.1
Prism outside cleaning
Removing the fixture is not necessary to clean the outer surface of the prisms, and if
already removed is not necessary to open it. Clean the prisms surface with non abrasive
glass product.
4.3.2
Prism inside cleaning
Normally the cleaning of the prism inside surfaces is not necessary because fixture is
watertight. Whenever it is necessary, remember the following rules.
Remove the fixture from the base and open it following instructions of
“Removing
and Opening the Light Unit From the Base”
and proceed as follows:
clean the prisms surfaces (Figure 19 - n°1) with non abrasive glass product
dry them carefully
reassembly the light unit following instructions of paragraph
“Closing the Fixture”,
“Leakage Test”
and
“Reinstalling the fixture”
.
