7. Timing of Installing/Decorating
• Install the base plate (and surface pattress if used) at 1st fix.
• Do not install alarm itself until following trades have finished e.g.
plasterers/painters/carpet fitters etc..
• Do not install if property remains damp/unheated.
• Dust and other contaminants e.g. paint fumes, will enter the alarm causing pos-
sible nuisance alarms and damage the sensitive components within.
(It will also invalidate the guarantee provisions.)
• Never plug in or remove cabling harness when circuit is live as you could short
circuit it and invalidate the guarantee.
• After installation, cover the alarm with the supplied dust cover –
this must be removed just prior to occupation for the alarm to function.
8. Decorating
• Never paint the alarm itself.
• During redecoration, all alarms should be covered with the supplied dust cover
or a plastic bag to prevent contamination by fumes.
(These can permanently damage the alarm).
Do not uncover until the surrounding paintwork is thoroughly dried.
• Whilst covered, the alarm cannot operate.
Remove covering as detailed above.
9. L.E.D. Status
• Green L.E.D. is lit when AC power is present.
• Red L.E.D. blinks to indicate normal operation of alarm function. (If model with
battery back-up, also indicates healthy battery.) In alarm state (i.e. triggered),
L.E.D. will flash rapidly.
If interconnected to other alarms only the triggering alarm will have a rapidly
flashing L.E.D..
On optical alarms if the red L.E.D. blinks every 30-40 seconds and the alarm
chirps in between, it indicates failure of the sensing chamber. Householders
should consult Owner’s Manual or installer/landlord. This condition also exists
if the Hush button is pushed.
• The alarm sounder and flashing L.E.D. will remain whilst the alarm continues to
detect smoke (or excessive heat in a heat alarm).
10. Ongoing Maintenance
• Alarms are sensitive electrical devices. The test button should be pushed (and
held) once a week to verify operation.
• Once a month the alarm should be wiped with a mildly damp cloth, having pre-
viously vacuumed the outside of the unit, especially through the grill area.
The
mains supply should first be isolated
.
6
• All interconnected alarms must be powered off the same fuse/circuit breaker.
• Total cable length between alarms must not exceed 250m (273yds) and be
1.0mm in diameter, 3 core and earth (BS6243Y). Wiring must conform to the
IEE regulations - BS7671, or latest edition.
These smoke/heat alarms are Interconnectable with Kidde Rechargeable CO
Alarms models 423D/9hir & 423/9hir.
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