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replace with (N) mains power cable.

4. Connect brown cable from connector plug of smoke alarm to live (L)

mains power cable. 

5. If interconnection is desired, connect orange or white cable from con-

nector to interconnect strand on the 3 core & earth cable. See section,
“Interconnecting Smoke Alarms.”

NOTE:

If this will be a single-station smoke alarm, cover orange or white

cable with electrical tape and tuck into pattress. 

Steps 6-9 for Models KF10, KF10LL, KF20, KF20LL ONLY:

6. Lift open battery pocket door. 
7.

Connect new 9-volt battery to battery connector inside battery pocket. BE
SURE  BATTERY  IS  SECURELY  CONNECTED.  Smoke  alarm  may  beep
briefly when battery is installed.

8. Close battery pocket door, snapping it into place. 

9. KF10LL and KF20LL include a tamper-proofing locking option, using

the screw provided

10. Push button and hold button on front cover of smoke alarm for three

(3) seconds. Smoke alarm should sound its alarm horn if battery is fit-
ted correctly.

11. Attach connector plug to pins on back of smoke alarm. Plug will only

fit one way and will snap into place. 

12. Gently tug connector to be sure it is attached securely. 
13. Position smoke alarm to mounting plate so that keyslot on side of

smoke alarm is to left of tab on mounting plate. Turn clockwise to lock
into 

place. 

NOTE: (For Models KF10, KF10LL, KF20 and KF20LL only):

Smoke alarm will not mount to plate if battery is 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 1.5mm

2

minimum solid or stranded cable with a rating of 230V.

When interconnecting, maximum cable length between any two is 450
m for 1.5mm

2

or 1200 m for 2.5mm

2

(20 OHMS loop resistance).

NOTE: Maximum length under BS7671 17th Edition wiring regs
amendment 1 for CB/RCBO type B is 72 metres for TN-S or TN-C-S
systems (source "On-Site Guide" page 59) 

This smoke alarm may be interconnected with as many as 23other
Models smoke alarms, as listed on page 1. DO NOT connect to any
other type or model smoke alarm.

Connect smoke alarms to a single circuit. Wiring must conform to IEE

Regulations for electrical installation.

RED AND GREEN LED

INDICATORS

This smoke alarm features red and green LED indicators that can be seen
through the Push-to-Test button or the LED lens above the test button. 
The LEDs indicate the following:

GREEN LED
ON

— 

AC power is present

.

OFF

— 

AC power is not present. 

RED LED

Blinks once every 5 minutes AND 20 SECONDS —

indicating normal 

operation.

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MODELS KF10, KF10LL, 

KF20, KF20LL

MODELS KF10R, KF20R (Rechargeable)

ORANGE OR WHITE

ORANGE OR WHITE

FOR INTERCONNECT: USE STANDARD 3 core & earth cable 1.5mm2 cable

NEUTRAL

LINE

1374-7205-00(KF10_KF20_KF10R_KF20R)_EN_V4:_  2014.11.20  10:16 AM  Page 4

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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