SMK23 Pattress Surface Mount Pattress For models:
123I, 123/9HI, 123/9HILL, 123/9EI, 223I, 223/9I,
223/9ILL, 223/9HI, 223/9HILL, 323I, 323/9HI, 323/9HILL
Application
• This surface mount pattress is for use with
KIDDE Fyrnetics, Hard Wired Smoke, Heat and
CO Alarms, where surface cabling is being
used, such as in retrofit applications.
Usage
• This is designed for installation by a qualified
electrician, in accordance with the current IEE
regulations. Failure to install correctly can result
in a fatal shock or fire hazard.
• Alarms without battery back-up must be
connected direct to the Consumer Unit on a
separately fused spur – see current Building
Regulations.
(AC models with battery back-up may be
connected off an adjacent lighting circuit).
• Knock-outs on the underside and edge of the
pattress provide flexibility of cable entry, for
ease of use. A small rib on the edge of the
pattress lines up with a mark on the alarms
base plate, to ensure correct alignment.
• Site and select alarm type in accordance with
manufacturer literature/manual shipped with
alarm. Also refer to Building Regulation
requirements if applicable, plus BS5839 Pt 6.
• Isolate mains power before commencing work.
• Never remove/refit the cable harness whilst
mains power is present.
Surface Mounting Kit
Installer’s Guide
• Crossing line and neutral connections or line
and interconnect connections will fatally
damage all interconnected alarms invalidating
the guarantee.
• Never Meggar Test an installation, without
disconnecting any connected alarms (this can
permanently damage the alarm and invalidates
the guarantee).
• All interconnected alarms must be powered off
the same fuse/circuit breaker.
• Total cable length between alarms must not
exceed 250m (273yds) and be 1.5mm in
diameter, 3 core and earth (BS6243Y).
Important Notes
• As in illustration 1 (on reverse), bring mains
cabling into pattress terminal block via knock-
out selected and fix pattress to ceiling with
2 screws.
(If using dry lining box, select appropriate holes
on pattress and secure with machine screws.)
• Wire in mains cabling to terminal block, looping
“earth” in and out.
• Connect flying leads on alarm cable harness to
appropriate terminals and ensure polarity is
correct.
• Install and test alarm by following guidance in
Installer Manual of alarm.
smk23UM/800
