background image

Blinks once a second

— smoke alarm senses smoke and

simultaneously sounds an audible alarm.

Blinks once every 10 seconds — smoke alarm is in hush mode. 

(Interconnected system only): 
3 rapid flashes at 40 second intervals —  indicates which alarm previously

detected an alarm condition.  

OFF

— 

another smoke alarm in the network has sensed 
smoke and is signalling this alarm.

HUSH BUTTON

Models KF10, KF10LL, KF10R, KF20, KF20LL and KF20R feature Hush Button
that, when activated,  quiets unwanted alarms for up to 9 minutes.

To use the Hush Button:

Press and release the test button during an unwanted alarm. The alarm
should stop within ten seconds. This means the smoke alarm is in Hush
Button. If the smoke alarm does not go into Hush and continues to sound
its loud alarm horn, or if it initially goes into Hush then resounds the alarm,
the smoke is too heavy and could be a dangerous  situation – take
emergency action.

TESTING THE SMOKE ALARM

W A R N I N G

Test each smoke alarm to be sure it is installed correctly and operating
properly. 

Test all smoke alarms in an interconnected system after installation. 

The Push-to-Test button accurately tests all functions. DO NOT use an
open flame to test this smoke alarm. You may ignite and damage the
smoke alarm or your home.

Test smoke alarms weekly and upon returning from holiday or when no
one has been in the household for several days.

Stand at arm’s length from the smoke alarm when testing. The alarm
horn is loud to alert you to an emergency and can be harmful to hearing.

Test all smoke alarms weekly by doing the following:

1. Check Push-to-Test button. A constant green light indicates the smoke

alarm is receiving 230V AC, 50Hz power. A red flashing LED about once
every 5 minutes verifies operation. For models KF10, KF10LL, KF10R,
KF20, KF20LL and KF20R the red flashing LED also verifies that a
working battery is present. 

2. Firmly depress and hold the Push-to-Test button for at least five (5) sec-

onds. The smoke alarm will sound a loud beep about three (3) times a
second. The alarm may sound for up to 10 seconds after releasing the
Push-to-Test button.

NOTE: 

If smoke alarms are interconnected, all smoke alarms should
sound an alarm within three seconds after any test button is
pushed and the tested smoke alarm sounds. 

3. If smoke alarm does not sound, turn off power at main fuse box or 

circuit breaker and check wiring. Retest smoke alarm.

DANGER: If alarm horn sounds, and smoke alarm is 

not being tested, the smoke alarm is sensing
smoke. THE SOUND OF THE ALARM HORN
REQUIRES YOUR IMMEDIATE ATTENTION 
AND ACTION. 

MAINTENANCE AND CLEANING 

In addition to weekly testing, Models KF10 and KF20 also require periodic bat-
tery replacement. Regularly clean smoke alarm to remove dust, dirt, and
debris.

WARNING: Alarm comes equipped with a dust cover,

which prevents dust and debris from 
damaging the unit during construction or
remodeling. Remove dust cover before     oper-
ation. Alarm will not operate properly while
covered.

DANGER: 

ELECTRICAL SHOCK HAZARD. Turn off main
power at fuse box or consumer unit by
removing fuse or switching appropriate circuit
breaker to OFF position before replacing
battery or cleaning smoke alarm.

B

BA

AT

TT

TE

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RY

Y  R

RE

EP

PL

LA

AC

CE

EM

ME

EN

NT

T

((

For Models KF10 and KF20 only

))::

CAUTION: Danger of explosion if battery is incorrectly

replaced.

Always turn off power to smoke alarm before replacing battery. Replace 
battery at least once a year or immediately when the low battery signal
sounds once every 40 seconds, even though the smoke alarm is receiving
AC power. 

Use only the following 9V/(6F22) batteries as replacements in this

smoke alarm: 

Energizer 522; Duracell MN1604 or MX 1604; or

FDK CP-V9Ju; Ultralife U9VL-J-P
Replace only with the same or equivalent battery type recommended 

5

MODELS KF10R, KF20R (Rechargeable)

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1374-7205-00(KF10_KF20_KF10R_KF20R)_EN_V4:_  2014.11.20  10:16 AM  Page 5

Summary of Contents for KF10

Page 1: ...e lithium batteries that will last the life of the alarm and a tamper proof locking screw option Models KF10R and KF20R include permanent rechargeable lithium batteries Operating temperature 0 C to 40 C Operates up to 93 humidity non condensing IMPORTANT SAFETY INFORMATION PLEASE READ AND SAVE THESE INSTRUCTIONS W A R N I N G DO NOT paint or cover the smoke alarm with tape This smoke alarm should ...

Page 2: ...age injury or death that may result from fire If a household member is hearing impaired install special smoke alarms with lights or vibrating devices to alert occupants Smoke alarms can only sound their alarms when they detect smoke Smoke alarms detect combustion particles in the air They do not sense heat flame or gas This smoke alarm is designed to give audible warning of a developing fire Howev...

Page 3: ...utton is difficult e g top of stairwells Siting should be in accordance with the current Building Regulations and or BS5839 Pt6 current I E E Regulations CAUTION Alarm should not be exposed to dripping or splashing HOW TO INSTALL THIS SMOKE ALARM DANGER ELECTRICAL SHOCK HAZARD Turn off power at the main consumer unit or cir cuit breaker by removing the fuse or switching the circuit breaker to the ...

Page 4: ...not installed 14 Turn on power at main fuse box or circuit breaker The green LED on the cover should be illuminated 15 Test smoke alarm See TESTING THE SMOKE ALARM INTERCONNECTING SMOKE ALARMS Use 1 5mm2 minimum solid or stranded cable with a rating of 230V When interconnecting maximum cable length between any two is 450 m for 1 5mm2 or 1200 m for 2 5mm2 20 OHMS loop resistance NOTE Maximum length...

Page 5: ...hat a working battery is present 2 Firmly depress and hold the Push to Test button for at least five 5 sec onds The smoke alarm will sound a loud beep about three 3 times a second The alarm may sound for up to 10 seconds after releasing the Push to Test button NOTE If smoke alarms are interconnected all smoke alarms should sound an alarm within three seconds after any test button is pushed and the...

Page 6: ...These cells are designed to last the useful life of the smoke alarm C CL LE EA AN NI IN NG G Clean the smoke alarm at least once a month to remove dust dirt or debris Always turn off power to smoke alarm before cleaning Using the soft brush or wand attachment to a vacuum cleaner vacuum all sides and cover of smoke alarm Be sure all the vents are free of debris If necessary turn off power and use a...

Page 7: ...t sound when tested NOTE Push and hold test button for at least five 5 seconds while testing 1 Check that AC power is turned on Green LED should be illuminated 2 Turn off power Remove smoke alarm from mount ing plate and a check that connector plug is securely attached b check that battery is properly attached to con nector 3 Clean smoke alarm Smoke alarm beeps once every 40 seconds KF10 and KF20 ...

Page 8: ...ted Kingdom Tel 44 0 1753 685148 www smoke alarms co uk 8 Leading authorities recommend that both Ionisation and photoelec tric smoke alarms be installed to insure maximum detection of the various types of fires that can occur within the home Ionisation sensing alarms may detect invisible fire particles associated with fast flaming fires sooner than photoelectric alarms Photoelectric sensing alarm...

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