Honeywell SF450EN User Manual

Instruction Manual SF450EN

Carbon Monoxide Alarm
User Manual 2109M5500_5
EN50291:2001

INTRODUCTION

Thank you for purchasing this
alarm which is designed to
detect the presence of Carbon
Monoxide. This manual contains

Test
Button

information on the installation
and operation of the Carbon
Monoxide alarm.

The green power light ashes at

approximately 1 minute intervals
to indicate that the unit is
operating correctly. The red alarm

light will ash continuously and

the buzzer will sound if Carbon Monoxide is present.

The unit is suitable for use in areas where cooking and heating
appliances burn fuels such as wood, charcoal, coal, coke, oil,
petrol, gas, etc.

WHAT IS CARBON MONOXIDE

Carbon Monoxide (CO) is a highly poisonous gas which is released
when fuels are burnt. It is invisible, has no smell and is therefore

very difcult to detect with the human senses. The rst warning

symptoms that CO is present in the air are usually headaches and
nausea. Under normal operating conditions, in a room where fuel­burning appliances are well maintained and correctly ventilated,
the amount of Carbon Monoxide released into the room by the
appliances is not dangerous. A dangerous quantity of Carbon
Monoxide can occur if one or more of the following conditions
exists:

1. An appliance is faulty or is badly maintained.

2. A ue is partially or totally blocked.

3. A room is not adequately ventilated.

Red
Alarm
light

Green
Power
light

Buzzer

Gas inlet

CAREFULLY READ AND UNDERSTAND THE CONTENTS

OF THIS INSTRUCTION MANUAL BEFORE USING THE
ALARM. RETAIN THE MANUAL IN A SAFE PLACE FOR

PAY PARTICULAR ATTENTION TO THE SAFETY

WARNINGS. PASS THE MANUAL ONTO ANY

FUTURE REFERENCE.

SUBSEQUENT USERS OF THE ALARM.

WARNING

THIS Carbon Monoxide ALARM MAY NOT PROTECT
PEOPLE WHO ARE AT SPECIAL RISK FROM Carbon

Monoxide EXPOSURE BY REASON OF AGE, PREGNANCY

OR MEDICAL CONDITION. IF IN DOUBT, CONSULT YOUR

MEDICAL PRACTITIONER.

This Carbon Monoxide Alarm is NOT:

• A substitute for either a smoke alarm or a combustible

gas detector.

• To be seen as a substitute for the proper servicing of

fuel-burning appliances or the sweeping of chimneys

• To be used on an intermittent basis, or as a portable detector

for the spillage of combustion products from fuel-burning
appliances or chimneys.

CAUTION

This Carbon Monoxide alarm is designed for indoor use only.

Do not expose to rain or moisture. Do not knock or drop

the unit. Do not open or tamper with the unit as this

The alarm will not protect against the risk of Carbon

Monoxide poisoning when the battery has drained.

could cause malfunction.

IMPORTANT

• Carbon Monoxide is produced by the incomplete combustion

of fuels such as wood, charcoal, coal, heating oil, paraffin,
petrol, natural gas, propane, butane etc.

• Ideally, it is recommended that a Carbon Monoxide alarm

should be installed in or near to every room that has a fuel

burning appliance such as any gas res, central heating boiler,

room heaters, water heaters, cookers, grills, etc.

• This alarm should only be installed by a competent person.

• Ensure that the audible alarm can be heard by all those who

are intended to hear it.

• This product should not be used if any fault signals are given.

• Seek medical help if it is suspected that a member of the

household is suffering from Carbon Monoxide poisoning.

• If further details are required which do not appear in this

manual, contact Honeywell Analytics.

This pack contains: One unit
One fixing kit
One instruction manual

EFFECTS OF CARBON MONOXIDE POISONING

Carbon Monoxide binds to the haemoglobin in the blood and
reduces the amount of oxygen being circulated in the body.

200ppm Slight headaches, tiredness, dizziness, nausea after
2-3 hours.

400ppm Frontal headache within 1-2 hours, life threatening
after 3 hours.

800ppm Dizziness, nausea and convulsions within 45 minutes.
Unconsciousness with 2 hours. Death within 2-3
hours.

1600ppm Headache, dizziness and nausea within 20 minutes.
Death within 1 hour.

6400ppm Headache, dizziness and nausea within 1-2 minutes.
Death within 10-15 minutes.

IN WHICH ROOM TO PUT THE ALARM

Ideally, an alarm should be fitted in every room that contains a fuel­burning appliance. However, if there is more than one appliance
and the number of units is limited, the following points should be
taken into consideration when deciding on the best location:

• If there is an appliance in a room where people sleep, a unit

should be placed in that room.

• A unit should be located in a room containing a flueless or

open-flued appliance.

• If there is an appliance in a room which people use a lot, such

as a sitting room, a unit should be placed in that room.

• In a bedsit, the unit should be placed as far away from the

cooking appliance as possible but near to where the person
sleeps.

• If the appliance is in a room not normally used, such as a boiler

POSITIONING THE ALARM

1. Units located in the same room as a fuel-burning
appliance

• If the unit is located on the wall it should be located at a height

greater than the height of any door or window but at least
150mm from the ceiling. If the unit is mounted on the ceiling it
should be at least 300mm from any wall.

• The unit should be at a distance of between 1m and 3m from

the potential source.

• If there is a partition in a room, the unit should be located on

the same side of the partition as the potential source.

• In rooms with sloped ceilings, the unit should be located at the

high side of the room.

2. Units located in sleeping rooms and in rooms remote from
a fuel burning appliance

• Units should be located relatively close to the breathing area

of the occupants.

WHERE NOT TO PUT THE ALARM

Do not place the unit in the following areas:

• Outside the building.

• In or below a cupboard.

• In a damp or humid area.

• Directly above a sink or cooker.

• Next to a door or window or anywhere that would be affected

draughts, eg, extractor fan or air vent.

• Where the air ow to the unit would be obstructed by curtains

or furniture.

• Where dirt or dust could collect and block the sensor, and stop

it working.

• In an area where the temperature could drop below -10˚C or
rise to above 40˚C.

• Where it could be easily knocked, damaged, or where it could

be inadvertently removed.

room, the unit should be placed just outside the room so that
the alarm will be heard more easily.

INSTALLING THE ALARM

The unit can either be free-standing or wall mounted, using the
fixings provided.

Find a position to install the unit (see“where to put the alarm” and
“where not to put the alarm”).

WALL MOUNTING INSTALLATION

mounting pad

Option 1 Special Mounting Pad with
Fixing Pin (supplied)

Place the fixing pin through the
mounting pad. Using a hammer,
gently knock the fixing pin into the wall
ensuring that the mounting pad is not
hammered too firmly into the wall.

wall
wall plug

fixing pin

5mm

Option 2 Screw and wall plug
(NOT supplied)

screw

wall

If the wall is too hard to use the fixing
pin, use a No. 4 round head screw and
wall plug.

Once activated and tested (see “using the alarm”), the unit can
be hung on the protruding fixing pin using one of the ‘keyholes’

indicated on the back of the unit by the lines shown.

USING THE ALARM

To activate the unit, pull out the activation strip at the base of the
unit. The green and red lights will flash briefly and the buzzer will
sound a short chirp.

Press the test button and hold for up to 5 seconds and check that
the red light flashes and the buzzer sounds.

The unit is now operating and is ready for use.

PIRTS TUO LLUP

Find out more

Contact Honeywell Analytics:

www.honeywellanalytics.com

Europe, Middle East, Africa and Asia

Honeywell Analytics
4 Stin sford Road
Nuffield Industrial Estate
Poole, Dorset BH17 0RZ
Tel: [phone]
Fax: [phone]
[e-mail]

Americas

Honeywell Analytics Inc.
405 Barclay Blvd.
Lincolnshire, IL 60069
USA
Tel: [phone]
Toll free: [phone]
Fax: [phone]
[e-mail]

www.honeywell.com

Technical Services

[e-mail]

TESTING YOUR CARBON MONOXIDE ALARM

The unit should be tested monthly by pressing and holding the
test button on the front of the unit for 5 seconds. If the unit is
functioning correctly, the green light will stay illuminated, the red

light will ash and the alarm will sound.

SPECIFICATION

Model: SF450EN

Gas Detected: Carbon Monoxide

Detection Principle: Electro-chemical cell

Alarm Indication: Flashing red light and audible alarm

Alarm Levels: 50ppm Between 60 to 90 mins
100ppm Between 10 to 40 mins
300ppm Less than 3 mins

Operating Temperature: -10˚C to 40˚C

Humidity Range: 30 to 90% RH

Warm-up time after
initial switch on: Instantaneous

Normal Operating Life: Up to 6.5 years

Battery life when in alarm: At least 5 days

Dimensions: 110mm x 76mm x 34mm

Weight: Approximately 180g

CARE AND MAINTENANCE OF ALARM

The Carbon Monoxide alarm is pre-calibrated at the factory and
requires no maintenance other than to clean the outside case
occasionally with a clean tissue. Ensure that the holes on the
front of the unit are not blocked with dust or dirt. DO NOT USE
CLEANING AGENTS, BLEACH OR POLISH.

END OF UNIT LIFE

The unit will operate for up to 6.5 years under normal use. The unit
must be replaced when either the end of life signal is given (buzzer
sounds 3 times per minute) or a fault warning signal (1 or 2 chirps
per minute) is given.

DISPOSAL

When the unit has come to the end of its life, dispose of it in
accordance with local regulations.

OPERATION OF THE ALARM

Normal Operation

When no Carbon Monoxide is present, the green power light will ash

approximately once every minute.

During normal operation the unit carries out a self-check test
every minute.

Alarm Condition
When the unit detects Carbon Monoxide, it will give the alarm signal

continuously. The red alarm light will ash and the buzzer will sound

approximately 5 times per second.
When the unit has been in alarm for 30 minutes the full alarm signal will
be given once every minute.

Alarm Signal

The Carbon Monoxide alarm can be distinguished from smoke detector
alarms as it signals C.O. in morse code (5 per second).

Hush Feature

If required, the audible alarm can be silenced for 5 minutes by pushing

the button marked 'Test'. The red alarm light will continue to ash 5 times

per second.

If Carbon Monoxide is still present after the 5 minute hush period, the
audible alarm will sound.

NOTE: The hush facility will not operate at levels above 350ppm Carbon
Monoxide. At levels below 350ppm the hush facility will only operate
once, ie the audible alarm can only be silenced for one 5 minute period.

Return to Normal Operation

When the Carbon Monoxide gas disperses, the alarm signal will stop. The

green power lamp will continue to ash approximately once every minute.

Fault Warning

If a fault is detected the buzzer will sound 2 short chirps every minute.
The unit must then be replaced.

Battery Fault Warning/End of Battery Life

The buzzer will sound 1 short chirp every minute.

End of Unit Life

When the unit comes to the end of its life the buzzer will sound 3 short
chirps every minute. The unit must then be replaced.

NOTE: With normal use the batteries will last for up to 7 years. However,
battery life will be reduced if either a fault occurs with the battery or the
unit remains in alarm for long periods of time. Should the Battery Fault
Warning occur please contact your supplier.

WHAT TO DO WHEN THE ALARM SOUNDS

If the unit raises an alarm, proceed as follows:

• Open all doors and windows to ventilate the area and allow the

Carbon Monoxide to disperse.

• Where possible turn off all fuelled appliances and stop

using them.

• Evacuate the property leaving the doors and windows open.

• Ring the gas or other fuel supplier on their emergency number

and explain the problem. Keep the telephone number in a
prominent place.

• Do not re-enter the property until the alarm has stopped.

• Get medical help immediately for anyone suffering from the

effects of Carbon Monoxide poisoning such as headaches,
nausea, etc. and advise that Carbon Monoxide poisoning
is suspected.

• Do not use the fuel burning appliances again until they

have been checked and cleared for use by a competent
person according to national regulations.

Green Power

Light

Red alarm

Light

Buzzer

1 per minute

5 per 1 second

5 per 1 second

per minute

(_•_•_ _ _)

c o

5 per 1 second

5 per 1 second

1 per minute

2 per minute

1 per minute

3 per minute

GAS EMERGENCY SERVICE

TELEPHONE NUMBER

0800 111 999

Contact Numbers for OTHER FUEL Appliances:
OIL USERS: Contact OFTEC on 0845 658 5080
SOLID FUEL USERS: Contact HETAS on 0800 600 000

(Please note these numbers are only

available during normal ofce hours)

Gas appliances should be checked for safety annually by a CORGI
registered installer. Details of local installers can be obtained by
ringing CORGI on 0870 401 2300 or by accessing the website at
www.corgi-gas-safety.com

User Manual also available in Braille. A Carbon Monoxide
safety information sheet is available in: Punjabi; Urdu; Bengali;
Gujarati and Hindi. For copies please call Honeywell Analytics
on: 01202 645577

The Consumer product range from
Honeywell Analytics, the UK’s No 1 manufacturer
and supplier of consumer gas alarms.

DISCLAIMER

This Carbon Monoxide alarm is designed to alert you to a
potentially dangerous build-up of Carbon Monoxide gas. It is not
designed to remedy a Carbon Monoxide problem nor to locate a

specic source of Carbon Monoxide. Honeywell Analytics shall not

be liable to pay for any Carbon Monoxide investigation or service
call carried out or arranged in response to an alarm.

GUARANTEE

We guarantee your new Carbon Monoxide alarm for six years

from the date of purchase or until the expiry date on the front of

the unit, whichever occurs rst - under normal use and service,

to be free from defects in materials and workmanship.

During this period we will, at our discretion, repair or replace

any part of the Carbon Monoxide alarm which is found to be

defective in either materials or workmanship providing this

occurs under normal use and service. We shall, however, be

under no obligation to repair, or replace units which are found to

be defective in any way due to damage, neglect, unreasonable

use or which have been tampered with or found to have been

dismantled. Defective units should be returned, in suitable

packaging, along with proof of purchase to

CO Returns, Honeywell Analytics, 4 Stinsford Road,

Nufeld Industrial Estate, Poole, BH17 0RZ.

An accompanying letter should state clearly any problem

with the Carbon Monoxide alarm. This guarantee does not

affect your statutory rights.

Issue 5 03/07
MAN0849_2109M5500_5
12/07
© 2007 Honeywell Analytics

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