Ei Electronics Ei 261DEN Manuale utente

Model Ei 261EN

Model Ei 261DEN

WITH DIGITAL DISPLAY

DIGITAL DISPLAY

Ei261DEN ONLY

Read and retain carefully for as long as the product is being used. It contains vital information on the

operation and installation. The leaflet should be regarded as part of the product.

If you are just installing the unit, the leaflet must be given to the householder. The leaflet is to be given to

any subsequent user.

MAINS POWERED

CARBON MONOXIDE ALARMS

WITH RECHARGEABLE LITHIUM CELL BACK-UP

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 1

READ THIS FIRST

CARBON MONOXIDE - THE SILENT KILLER!

WHERE TO PLACE CARBON MONOXIDE ALARMS

INSTALLING YOUR CARBON MONOXIDE ALARMS

TESTING YOUR CARBON MONOXIDE ALARMS

MAINTAINING CARBON MONOXIDE ALARMS

LIMITATIONS OF CARBON MONOXIDE ALARMS

HOW TO PROTECT YOUR FAMILY

TECHNICAL SPECIFICATIONS

GETTING YOUR CARBON MONOXIDE ALARMS SERVICED

FIVE YEAR GUARANTEE

TROUBLESHOOTING

Page

CONTENTS

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 2

1. READ THIS FIRST

WARNING

The Alarm should be permanently wired to the mains by a qualified electrician in accordance with IEE

wiring regulations (BS7671).

Install the Carbon Monoxide Alarm (CO Alarm) in every room that contains a fuel burning

appliance, particularly rooms where people spend a lot of time e.g. bedrooms, kitchens and sitting

rooms.

In rooms with an appliance install (perferably) on the ceiling (300mm from walls) and between 1m

to 3m horizontally from appliance. In rooms remote from the appliance install at breath level, where

the light indicators can be seen.

Regularly check that the green power light is on, so that standby rechargeable cells will fully

charge. Important: The CO Alarm will not work if the mains supply is off and the rechargeable cells

are depleted.

Test the unit weekly by pressing the test/hush button-the horn will sound.

Replace sensor module after 5 years operation (see page 20).

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 3

What to do when the alarm sounds:

(1) Open the doors and windows to ventilate the area.

(2) Turn off all fuel appliances where possible and stop them. (The alarm can be silenced

immediately by pushing the test/hush button).

(3) Evacuate the property leaving the doors and windows open.

(4) Get medical help immediately for anyone suffering the effects of Carbon Monoxide poi-

soning (headache, nausea), and advise that Carbon Monoxide poisoning is suspected.

(5) Ring your gas or other fuel supplier on their emergency number. Keep the number in a

prominent place.

(6) Do not re-enter the property until the alarm has stopped. (If the alarm has been silenced

by pressing the test/hush button, wait at least 5 minutes so the alarm can check that the CO

has cleared).

(7) Do not use the fuel appliances again until they have been checked by an expert. In the

case of gas appliances this must be a CORGI registered installer.

When the CO Alarm detects abnormal levels of CO (above 50ppm CO) the red light starts to flash

and the horn will sound within 90 minutes. At higher levels of CO the alarm will turn on sooner (see

table B - page 6).

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 4

The CO Alarm will automatically reset

once the CO has cleared. Pressing the

test/hush button resets the CO Alarm

immediately (below 300ppm CO). If CO

is still present the red light and horn will

turn on again after about 4 minutes.

The CO Alarm is no substitute for keep-

ing chimneys and flues clear and in

good condition, and all of your appli-

ances serviced regularly according to

the manufacturer’s instructions.

Do not fit alarm until all building work

is completed to avoid contamination.

2. CARBON MONOXIDE

- THE SILENT KILLER!

2.1 What is Carbon Monoxide ?

Congratulations on becoming the owner of

an Ei Carbon Monoxide Alarm. This will help

protect you and your household from the

dangerous effects of Carbon Monoxide - the

silent killer. (CO is the chemical symbol, indi-

cating the module has one carbon atom and

one oxygen atom).

LOCATION FOR

TAMPERPROOF SCREW

(see page 16)

PUSH SMALL

SCREWDRIVER

STRAIGHT IN

TO RELEASE.

PUSH COVER

BACK

WARNING: DISCONNECT MAINS BEFORE REMOVING ALARM FROM

CEILING OR WALL

TAMPERPROOF CATCH

MOUNTING PLATE

SIDE VIEW

GAS ENTRY HOLES

Figure 1 - Alarm Installation

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 5

Many are killed each year, and many more suffer ill health from Carbon Monoxide (CO) poisoning. CO is

an invisible, odourless, tasteless and extremely toxic gas. It is produced by appliances and vehicles burn-

ing fuels, such as coal, oil, natural/bottled gas, paraffin, wood, petrol, diesel, charcoal etc. CO is absorbed

by red blood cells in the lungs in preference to oxygen - this results in rapid damage to the heart and

brain from oxygen starvation.

High levels of CO in a house can be caused by:

•Incorrectly or poorly installed fuel-burning appliances.

•Blocked or cracked chimneys/flues.

•Blocked vents or draught-proofing which makes areas with fuel burning appliances or fireplaces airtight.

•Engines of cars, lawnmowers etc. left running in confined spaces.

•Portable paraffin or gas heaters in badly ventilated rooms.

2.2 Symptoms of Carbon Monoxide Poisoning

Most people know that high levels of CO are harmful, however the period of exposure is also important.

The following symptoms are related to Carbon Monoxide poisoning and should be discussed with all

members of the household.

Mild Exposure: Slight headache, nausea, vomiting, fatigue (often described as “flu-like” symptoms).

Medium Exposure: Severe throbbing headache, drowsiness, confusion, fast heart rate.

Extreme Exposure: Unconsciousness, convulsions, cardiorespiratory failure, death.

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 6

A high level of CO for a short period (e.g. 350 ppm CO for 30 minutes) will cause the same symptoms,

a slight headache, as a lower level for a longer time (e.g. 150 ppm for 90 minutes). Table A shows how

exposure to different concentrations of CO generally affects people.

Many cases of reported Carbon Monoxide poisoning indicate that while victims are aware they are not

well, they become so disorientated they are unable to save themselves by either leaving the building or

calling for assistance. Young children and household pets may be the first affected.

Table A: Effects of Carbon Monoxide Poisoning

35 The maximum allowable concentration for continuous exposure in any 8 hour period according to OSHA *.

150 Slight headache after 1.5 hours.

200 Slight headache, fatigue, dizziness, nausea after 2-3 hours.

400 Frontal headaches within 1-2 hours, life threatening after 3 hours, also maximum parts per million in flue gas (on an

air free basis) according to US Environmental Protection Agency.

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

1,600 Headache, dizziness and nausea within 20 minutes. Death within 1 hour.

3,200 Headache, dizziness and nausea within 5-10 minutes. Death within 25-30 minutes.

6,400 Headache, dizziness and nausea within 1-2 minutes. Death within 10-15 minutes.

12,800 Death within 1-3 minutes.

ppm

Concentration

of CO in Air Inhalation Time (approx) and Symptoms Developed

ppm = parts per million

*OSHA Occupational Safety & Health Association

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 7

2.3 What happens when your CO Alarm detects Carbon Monoxide ?

When the Alarm detects potentally dangerous levels of CO, it flashes the red alarm light and then sounds

a loud alarm if the CO persists. The digital display indicates the CO level in parts per million, ppm CO,

(Model Ei261DEN only).

Table B below shows how the CO Alarm reacts to different levels of CO gas and exposure time. At higher

levels of CO the alarm turns on sooner. The rate of flashing of the red light indicates the level of CO.

Table B: CO Alarm Response

* unless it has been in alarm (see CO Alarm Memory below)

If your CO Alarm sounds follow the instructions on page 2.

When ventilation is provided by leaving the window and doors open, the CO build up may have

dissipated by the time help arrives and the alarm may have stopped sounding. Although your problem

may appear temporarily solved it is crucial that the source of the CO is determined and appropriate

repairs made.

CO Level

ppm

Horn On

within

Red

Alarm Light

0 ppm

50ppm

100 ppm

300 ppm

Off

60 to 90 minutes

10 to 40 minutes

3 minutes

Off *

1 Flash / 2 Seconds

2 Flashes / Second

4 Flashes / Second

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 8

NEVER IGNORE THE ALARM.

Pre-Alarm: When the alarm detects over 50ppm CO the red light flashes every 2 seconds. This helps

locate CO leaks as the unit gives an indication straight away. (Without this feature the CO level would

need to be at 50ppm CO for 90 minutes for an indication to be given). Note the Pre-Alarm signal may be

triggered by CO coming for example, from cooking with gas, from car engines or from nearby barbecues.

This is usually not a concern unless the Pre-Alarm signal persists until the alarm sounds and the CO

source is unknown.

NOTE: The CO Alarm may sound if cigarette smoke is blown into it, or aerosols are released nearby.

CO ALARM MEMORY.

When the test button is pressed the horn will sound, and the red light will only flash if the unit has

previously detected CO and been in alarm. The flash rate indicates the level of CO detected as below:-

- Red light is Off – No CO detected since reset or power up.

- Red light flashes 2 times (in 2 seconds) every 40 seconds, 50 ppm CO detected for about 90 minutes

since reset or power-up.

- Red light flashes 4 times (in 2 seconds) every 40 seconds, 100 ppm CO detected for about 40

minutes since reset or power-up.

- Red light flashes 8 times (in 2 seconds) every 40 seconds, 300 ppm CO detected for about 3 minutes.

Reset Memory by holding down the test button for over 20 seconds until the red light stops flashing.

Cover the horn with a cloth to muffle the alarm during this time.

Ei261-DEN Only

When the test button is held the display shows the previous peak reading. This tells you if the unit has

detected CO in your absence and helps to detect and locate leaks, monitor premises etc.

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 9

When the test button is held for 20 seconds the peak reading resets to zero. (Cover the horn with a cloth

to muffle the loud alarm).

Please note that the memory will also be reset when the unit is removed from the mounting plate.

3. WHERE TO PLACE CO ALARMS

3.1 Ideally a Carbon Monoxide Alarm should be installed in:

- Every room containing a fuel burning appliance, and

- Remote rooms where occupants spend a considerable amount of time

- Every bedroom.

However if the number of Carbon Monoxide Alarms is limited the following points should be considered

when deciding where best to fit the alarm(s)

- If there is an appliance in a room where people sleep, place a CO Alarm in this room and

- Locate a CO alarm in a room containing a flueless or open-flued appliance, and

- Locate an alarm in a room where the occupant(s) spend most of their time (e.g. sitting room) and

- In a bedsit, the CO alarm should be placed as far away from the cooking appliance as possible, but near

to where the person sleeps and

- If the appliance is in a room not normally used, such as a boiler room, the CO alarm should be placed

just outside the room so that the alarm will be heard more easily.

B15404-R0-261EN-UC-ENG 31/5/07 2:01 PM Page 10

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