__________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)208 743 8880
www.e2s.com Fax: +44 (0)208 740 4200
Document No. D190-00-301-IS-SC Issue: 8 24-04-19 Sheet 4 of 8
4)
Installation
4.1 Safe Installation Requirements
The product must only be installed by suitably qualified
personnel in accordance with the latest issues of the relevant
standards.
The installation of the units must also be in accordance with
the NEC / CEC and any local regulations and should only be
carried out by a competent electrical engineer who has the
necessary training.
4.2 Specific Conditions of Use
The Equipment must not be installed with the horn facing
upwards of horizontal.
To maintain the ingress protection rating and mode of
protection, the cable entries must be fitted with suitably rated
cable entry and/or blanking devices during installation. If
conduit is used for installation, seal conduit within 18 inches
from the enclosure.
If entries are fitted with adaptors they must be suitably rated for
the application. Fitting of blanking elements into adaptors is not
permitted.
If a high IP (Ingress Protection) rating is required then a
suitable sealing washer or O-ring must be fitted under any
cable gland or blanking device with metric threads.
Only the explosionproof cover is to be used for access to the
enclosure for installation, service and maintenance.
Connections are to be made into the terminal blocks using
solid or stranded wire, sizes 0.5-2.5mm
2
/ AWG 20-14. Wire
insulation needs to be stripped 6-7mm. Wires may be fitted
securely with crimped ferrules. Terminal screws need to be
tightened down with a tightening torque of 0.4 Nm / 3.5 Lb-in.
Earthing connections should be made to the Internal Earth
terminal in the explosionproof chamber or the external earth
stud.
Check that the ‘O’ ring seal is in place before replacing the
explosionproof cover.
If temperature exceeds 70°C at entry or 80°C at branching
point use suitable rated cable and cable glands:
4.3 Mounting
Fig. 1 Fixing locations.
The D1x Alarm Horn may be secured to any flat surface using
the three 7mm fixing holes. The enclosure provides IP66
protection and is suitable for installation in exterior locations
providing it is positioned so that water cannot collect in the
horn, and the cable entry is sealed.
4.4 Installation procedure
a. Secure the D1x alarm horn to a flat surface via the
three 7mm fixing holes in the mounting bracket.
b. Remove the explosionproof cover of the alarm horn by
unscrewing it, taking care not to damage the
explosionproof threads in the process (Refer to section
6).
c. Fit an M20/NPT suitably rated cable gland or conduit
entry into the hole in the enclosure and connect the field
wiring to the appropriate alarm horn terminals as shown
in fig. 6 (AC) or fig 8. (DC). The power supply terminals
are duplicated so that units may be connected in
parallel. An end of line monitoring resistor may be fitted
to DC units only (see section 14). If the second and
third M20/NPT entries are not used, suitably rated
stopping plugs must always be fitted.
d. Replace the explosionproof cover of the loudspeaker,
taking care not to damage the explosionproof threads.
Tighten fully.
4.5 Hornless Variants
The D1x Sounder is also available as a variant with no
horn fitted in the factory. The Horn threaded nose
portion has a fitment thread of 1-
3/8” – 18 UNF (to
BS1580 or ANSI B1.1). The customer is responsible for
sourcing and correctly fitting a suitable horn that meets
all of the relevant safety requirements.
5) Access to Explosionproof Enclosure
In order to connect the electrical supply cables to the alarm
horn it is necessary to remove the explosionproof cover to gain
access to the explosionproof chamber. This can be achieved
by unscrewing the explosionproof cover, taking extreme care
not to damage the explosionproof threads in the process.
Fig. 2 Accessing the Explosionproof Enclosure.
On
completion
of
the cable
wiring
installation
the
explosionproof threads should be inspected to ensure that they
are clean and that they have not been damaged during
installation. Also check that the ‘O’ ring seal is in place, on the
thread diameter in contact with the flat face of the
explosionproof cover. When replacing the explosionproof cover
ensure that it is tightened fully.
Max. ambient
temperature
70ºC
75ºC
Req. Cable /
Cable Gland
Rating:
D1xC1X05DC024,
D1xC1X05AC115
-
85ºC
D1xC1X05AC230
85°c
90ºC
External Earth
Assembly
Explosionproof
cover
Stopping plug
(Appropriate
cable glands to
be customer
supplied)
