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by the manufacturer. Discard used batteries safely according to 
manufacturer's instructions. 

WHENEVER THE BATTERY IS REPLACED, 

TEST THE ALARM FOR CORRECT OPERATION

PUSHING THE TEST BUTTON.

WARNING: DO NOT USE ANY OTHER TYPE OF 

BATTERY, EXCEPT AS SPECIFIED IN THIS 

USER GUIDE. DO NOT USE RECHARGEABLE 

BATTERIES.

1. Turn off power to smoke alarm at main consumer panel.
2. Insert a small screwdriver into the slot in the mounting plate. Depress

locking tab with the screwdriver and turn smoke alarm counter-clock-
wise to detach from mounting plate.

3. Gently pull down smoke alarm. Be careful not to separate cable 

connections.

4. Pull out power plug from back of smoke alarm.

5. From back of smoke alarm, lift tab to open battery pocket door.

6. Remove battery from pocket. Disconnect and discard drained battery

from battery connector.

7. Connect a fresh, 9-volt battery to connector. The battery will fit only

one way. Be sure battery connector is securely attached to battery 
terminals. Smoke alarm may sound a short beep when battery is
installed. This is normal and means the battery is installed correctly.

8. Place battery into battery pocket.

9.

Close battery pocket door. 

Push down until it snaps into place.

10. Press and hold test button. The alarm will sound if the battery is 

properly connected and working.

11. Replace connector plug. Connector will snap into place. Gently tug

connector to be sure it is attached properly.

12. Reattach smoke alarm to mounting plate by turning smoke alarm

clockwise until it snaps into place.

13. Turn on power and test smoke alarm using test button.

(For Models KF10R and KF20R only):

N

NO

OT

TE

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Rechargeable lithium batteries are permanently mounted and
sealed in the tamper-proof housing. These cells are designed to
last the useful life of the smoke alarm.

C

CL

LE

EA

AN

NIIN

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 damp cloth to clean smoke
alarm cover.

IMPORTANT:

Do not attempt to remove the cover or clean inside the smoke
alarm. THIS WILL VOID YOUR GUARANTEE.

R

RE

EP

PA

AIIR

R  

CAUTION: Do not attempt to repair this smoke alarm. 

Doing so will void your guarantee.

If smoke alarm is not operating properly, see “Troubleshooting”. If 
necessary and if still under guarantee, return smoke alarm to Kidde.
Pack it in a well-padded carton and send, postage prepaid to Kidde
address at the end of this user guide.

If the smoke alarm is no longer under guarantee, have a qualified
electrician replace the smoke alarm immediately with a comparable
Firex smoke alarm.

PRACTICE FIRE SAFETY

If the smoke alarm sounds its alarm horn, and you have not 
pushed the test button, it is warning of a dangerous situation. 
Your immediate response is necessary. To prepare for such 
occurrences, develop family escape plans, discuss them with 
ALL household members, and practice them regularly. 

Expose everyone to the sound of a smoke alarm and explain 
what the sound means. 

Decide on TWO exits from each room and an escape route 
to the outside from each exit. 

Teach all household members to touch the door and use an 
alternate exit if the door is hot. INSTRUCT THEM NOT TO OPEN
THE DOOR IF THE DOOR IS HOT.

Teach household members to crawl along the floor to stay below
dangerous smoke, fumes, and gases.

Decide on a safe meeting place for all members to meet outside the
building.

6

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1374-7205-00(KF10_KF20_KF10R_KF20R)_EN_V4:_  2014.11.20  10:16 AM  Page 6

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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