MEDC DB15 Sounder - Manual (Page 2)

07/01 © MEDC 2001
1. INTRODUCTION
These sounder units have been designed for use in harsh environmental
conditions.
2. INSTALLATION
General
When installing and operating electrical equipment, requirements for selection,
installation and operation should be referred to.
Additional national and/or local requirements may apply.
Ensure that all nuts, bolts and fixings are secure.
Ensure that appropriate stopping plugs are used to blank off unused gland entry
points. Sealing compound should be applied to stopping plug threads to maintain
the IP rating of the unit.
The DB15 is mounted via 2 x Ø 7mm (0.28”) fixing holes in the ‘u’ shaped
stirrup/mounting bracket.
If required, the unit can be initially placed via the Ø 13mm (0.51") central hole in
the stirrup. The unit can be rotated to the required position and fixed via the two
other holes.
The fixing holes accept M6 screws or bolts. MEDC recommend the use of stainless
steel screws.
The elevation of the unit can be adjusted by loosening the 2 x M6 screws which
fasten the stirrup to the sounder. The unit can then be adjusted by rotating to the
required position and then tightening the M6 screws. The DB15 should be
positioned such that debris, dust or water cannot settle in the re-entrant horn.
Cable Termination
CAUTION: Before removing the cover assembly, ensure that the power to the
unit is isolated.
Unscrew the 2 off screws holding the cover to the unit. Remove to gain access to
the interior of the enclosure.
Cable termination should be in accordance with specifications applying to the
application. MEDC recommend that all cables and cores should be fully identi-
fied.
Ensure that appropriate cable glands are used and that the assembly is shrouded
and correctly earthed.