Manual BRK Electronics CO850MRLi Carbon Monoxide Detector

Manual

Alarm sounder

•••• •••• ••••

A repeating series of

4 beeps with red light –

FULL ALARM

•••• •••• •••• A repeating series of

4 beeps WITHOUT LIGHTS –

An interconnected alarm is

in FULL ALARM

••• ••• Three short beeps every

60 seconds – REPLACE

CO ALARM/END OF LIFE

•• •• Two short beeps every 60

seconds with yellow light –

FAULT

•• A single beep every minute

with a yellow light flash –

LOW BATTERY

•••• •••• Two sets of four beeps with

red Light – WHEN TESTED

WITH TEST BUTTON

Indicator lights

The Green (power) Light – When the alarm is powered by

the mains supply the green light will remain on all the time.

If your mains power has failed and your alarm has a standby

battery (MRLi, MBXi) then the green light will blink every

minute.

The Red (Alarm) Light – This light will be on if the alarm

is detecting carbon monoxide. It will be accompanied by a

repeating series of four beeps followed by a 5 second pause.

The Yellow (fault) Light – In low battery mode the yellow

light will flash with a short beep once every 60 seconds. If a

circuitry or sensor fault occurs, the yellow light will stay

permanently on and accompanied by 2 short beeps every 60

seconds. Call Customer Services on +44 (0) 1452 887570

if this should happen.

NOTE: On interconnected alarm system with more than one

alarm, only the originating alarm will show the red light. All

the others will just sound the alarm.

If harmful levels of carbon monoxide are detected, your

alarm will emit a series of four beeps followed by a short

pause; this will be accompanied by a flashing red light. This

pattern will be repeated until the alarm is successfully reset.

If the alarm is emitting a different pattern of beeps see

section A above.

If the alarm sounds, respond as follows:

1. If anyone is experiencing the effects of carbon monoxide

poisoning–headache, dizziness, nausea or other ‘flu-

like’ symptoms:–

2. Open the doors and windows to ventilate.

3. Turn off any fuel-burning appliances where possible and

stop using them.

4. Evacuate the property leaving the doors and windows

open.

5. Ring your gas or other fuel supplier on their emergency

number. Record those numbers here:-

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

7. Get medical help immediately for anyone suffering the

effects of carbon monoxide poisoning (headache,

nausea), and advise that carbon monoxide poisoning is

suspected.

8. Do not use the fuel-burning appliances again until they

have been checked by an expert. In the case of gas

appliances this must be a Capita/Gas Safe registered

installer.

9. If no symptoms exist, operate the Test/Reset button and

immediately ventilate the home by opening the windows

and doors.

10. The alarm can be silenced by pressing the Test/Reset

button.

11. If you have interconnected CO alarms in the system, you

have to reset the initiating alarm which can be identified

by the red alarm light being 'on'.

What to do after resetting the alarm

A full continuous alarm within six minutes after reset

confirms ongoing presence of harmful levels of carbon

monoxide. If this occurs follow instructions 2 to 8 as per

above.

What to do after a carbon monoxide problem has

been corrected?

After a carbon monoxide problem has been corrected reset

your alarm by pushing the Test/Reset button as per the

following instructions.

How to reset the alarm

The alarm will reset once the carbon monoxide has

dispersed. Should you wish to attempt to do a manual reset

press the test/reset button. The unit will re-alarm if the levels

of carbon monoxide are still hazardous. To reset after an

alarm, press the Test/Reset.

C. What are the possible symptoms of

carbon monoxide poisoning?

Carbon monoxide (CO) is odourless, colourless, tasteless

and very toxic. When inhaled, it produces an effect known as

chemical asphyxiation.

Injury is due to the combining of CO with the available

haemoglobin in the blood, which lowers the oxygen-carrying

capacity of the blood. In the presence of carbon monoxide,

the body is quickly affected by oxygen starvation.

The following symptoms are related to carbon monoxide

poisoning and should be discussed with all members of the

household so that they know what to look for:

Extreme Exposure (A-C) below. Unconsciousness,

convulsions, cardio respiratory failure, death.

Medium Exposure (D-G below) Severe throbbing headache,

drowsiness, confusion, vomiting, fast heart rate

Mild Exposure (H-J below) Slight headache, nausea, fatigue

(often described as ‘flu-like’ symptoms)

A - 50% COHb (Permanent Brain Damage – Death)

B - 45% COHb (Coma and Permanent Brain Damage)

C - 40% COHb (Collapse)

D - 35% COHb (Vomiting)

E - 30% COHb (Drowsy)

F - 25% COHb (Headache and Nausea)

G - 20% COHb (Headache)

H -15% COHb (Slight Headache)

I - 10% COHb (None)

J - 5% COHb (None)

Many cases of reported CARBON MONOXIDE POISONING

indicate that while the victims are aware they are not well,

they become so disorientated they are unable to exit the

building or call for assistance. Young children and

household pets may be the first affected. Exposure during

sleep is particularly dangerous because the victim usually

does not awaken. For most people, mild symptoms

generally will be felt after several hours of exposure to 100

ppm of carbon monoxide. Higher levels will lead to more

severe symptoms or death.

D. What is carbon monoxide and why

should you be concerned?

Carbon monoxide is a dangerous, poisonous gas. It is often

referred to as the Silent Killer because it has no odour or

taste and it can’t be seen. The presence of carbon monoxide

inhibits the blood’s capacity to transport oxygen throughout

the body, which can eventually lead to brain damage. In any

enclosed space (home, office, recreational vehicle or boat)

even a small accumulation of carbon monoxide can be

dangerous.

E. What are the potential sources of

carbon monoxide?

Although many products of combustion can cause

discomfort and adverse health effects, it is carbon monoxide

(CO) that presents the greatest threat to life. CO is produced

by the incomplete combustion of fossil fuels such as natural

gas, propane, heating oil, paraffin, coal, charcoal, petrol or

wood. The incomplete combustion of fossil fuel can occur in

any device that depends on burning for energy or heat such

as gas fires, central heating boilers, room heaters, water

heaters, cookers or grills and in any petrol-powered vehicle

or engine (e.g. generator set or lawnmower). Tobacco smoke

also adds CO to the air you breathe.

When properly installed and maintained, your natural gas

boiler and hot water heater do not pollute your air space with

carbon monoxide. Natural gas is known as a ‘clean burning’

fuel because under correct operating conditions the

combustion products are water vapour and carbon dioxide,

which are not toxic. Carbon dioxide (CO2) is also present in

the air we exhale and is necessary for plant life). The

products of combustion are vented from boilers and water

heaters to the outside by means of a flue, duct or chimney.

Correct operation of fuel-burning equipment requires two

key conditions. There must be:

• An adequate supply of air for complete combustion.

• Proper venting of the products of combustion from the

boiler through the chimney, vent or duct to the outside.

Typical Carbon Monoxide Problems

1. Equipment problems, due to defects, poor maintenance,

damaged or cracked heat exchangers

2. Collapsed or blocked chimneys or flues, dislodged,

disconnected or damaged vents

3. Downdraught in chimneys or flues; this can also be

caused by very long or circuitous flue runs, improper

location of flue outlets or wind conditions

4. Improper installation or operation of equipment, chimneys

or vents

5. Short stays in rented accommodation (e.g. flats, holiday

cottages etc)

6. Air tightness of house envelope resulting in a lack of air

for the combustion process

7. Inadequate exhaust of space heaters or fuel-burning

appliances

8. Vent fans/chimneys competing for air supply

Potential sources of carbon monoxide in your

home/office:

F. How can you maintain your alarm?

An alarm is useful only if it works. The following illustration

explains proper maintenance.

NOTE If a fault warning is shown after a manual or automatic

self test contact our helpline on +44 (0)1452 887570

Mains alarms with 9V PP3 style Alkaline battery

back up. i.e. CO850MBXi

The battery is expected to last at least 12 months.

Changing the battery (CO850MBXi).

Mains units with a replaceable battery backup the alarm will

beep once every minute.

If this happens change the battery as follows:-

• WARNING: Battery replacement should only be done by a

competent person.

• Turn off the electricity supply to the alarm.

• Remove it from the pattress or backplate by removing the

screws at the top and bottom of the alarm.

• Undo the screw on the battery door and remove the door

and the battery from the alarm. (see below) Replace the

battery with a GP 1604A, Energiser 522, Duracell

MN1604 or MX1604. Place the new battery inside the

battery bay and refit the door and screw removed above.

• Test the alarm for correct operation using the test facility

whenever the battery is replaced. Do this before turning

on the main electricity supply.

NOTE: The CO850MRLi has sealed Lithium Rechargeable

battery backup. These batteries are not replaceable.

G. How can you test the alarm?

A green power light indicates that power is supplied. (See

previous section).To test the alarm, press, hold and then

release the Test/Reset button. A flashing red light will be

accompanied by a repeating series of four beeps followed by

a 5 second pause. Test weekly.

Test button will only function when alarm is fully installed on

the pattress. This applies to all models Mi, MBXi and MRLi.

A. Audible and visual warnings

B. What to do if the alarm sounds

Yellow – Fault

Green – Power

Red – ALARM

Important: Not suitable as a smoke, fire, or combustible

gas alarm. This device is not suitable for installation in a

hazardous location, as classified in BSEN 60079-10:1996.

WARNING: APPARATUS CONFORMING TO THIS

STANDARD (BSEN50291:2001) MAY NOT PROTECT

PEOPLE WHO ARE AT SPECIAL RISK FROM CARBON

MONOXIDE EXPOSURE BY REASON OF AGE,

PREGNANCY OR MEDICAL CONDITION. IF IN ANY

DOUBT, CONSULT YOUR MEDICAL PRACTITIONER.

Warning: Do not attempt to open the unit or tamper

with the internal circuitry as this may result in the risk

of electric shock and/or unit malfunction.

Gas Supplier

Capita/Gas Safe Engineer

Hospital/Doctor

Warning: This device will only alarm if carbon monoxide

is detected. If not responded to, the presence of carbon

monoxide can be fatal.

Caution: This alarm will only indicate the presence of

carbon monoxide at the sensor. Carbon monoxide may be

present in other areas. BRK Brands Europe Ltd shall

not be obligated to pay for any carbon monoxide

investigation or service call.

Test/Reset Button

Test the alarm by

pressing the

Test /Reset button

once a week.

Vacuum the

outside of the

alarm including

the air vent on the

front and base.

Battery Access Door

This Carbon Monoxide alarm shall not be seen as a

substitute for proper servicing of fuel-burning appliances,

or sweeping of chimneys, or as a substitute for either a

smoke alarm or a combustible gas alarm.

OWNER’S

MANUAL

For more information

please write to:

BRK Brands Europe Ltd

Unit 6, Carter Court

Davy Way

Waterwells Business Park

Quedgeley

Gloucester

GL2 2DE

United Kingdom

BS EN 14604: 2005

Licence No. KM99052

2502-B0008 RevA

BS EN 50291: 2001

Licence No. KM57514

C

ARBON

M

ONOXIDE

a

larm

When installing this alarm for use by others, please

leave this manual or a copy with the end user.

IMPORTANT: PLEASE READ

AND RETAIN THIS OWNERS MANUAL

MAINS POWERED MODELS,

230-240 VAC ( ), 50-60 Hz, 7W:

CO850Mi, CO850MBXi, CO850MRLi

COVERS

•Simple Fitting

Instructions

•Location Guide

•Operating Guide

•Basic Safety Tips

•Simple

Maintenance

Instructions

PLEASE KEEP THIS MANUAL IN A SAFE PLACE

Car and

Garage

Gas or Oil

Boiler

Gas Water

Heater

Gas Appliances

Wood Burning

Stove

Wood or Gas

Fireplace

Portable Gas or

Paraffin Heater

Clogged

Chimney Flue

Cigarette Smoke

Battery Access Door Screw

Rating

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