Manual BRK 750MBX (page 2 of 2) (English)

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Abnormal air conditions may cause the highly sensitive alarm to give a ‘false’ alarm. DO

NOT DISCONNECT THE ALARM. If no fire is apparent, ventilate the room and/or oper-

ate the alarm pause (If fitted).

'" IF THERE IS ANY QUESTION AS TO THE CAUSE OF AN ALARM, ALWAYS

ASSUME THAT IT IS DUE TO AN ACTUAL FIRE AND FOLLOW YOU FIRE EMER-

GENCY PLANS. Do not assume the alarm is a nuisance alarm and activate alarm pause

(if fitted).

Dust can have an adverse effect. Vacuum as recommended above.

Do not paint the unit.

Other factors such as nicotine contamination may also adversely affect the alarm.

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Ionisation type smoke alarms utilise a tiny amount of radioactive material, 0.9 microcuries

(30 kilobequerels) of Americium 241, to detect smoke. This material is in the form of a

sealed source and represents no hazard whatsoever to anyone installing or using the

smoke alarm. Any stray particles would be unable to “penetrate the dead layer of skin

and thus do not constitute an external hazard”. (Radiation Protection Guidance for Scien-

tists and Physicians). All BRK® ionisation smoke alarms have been rigorously tested by

the National Radiological Protection Board to ensure absolute safety.

2;98;*5

This product, the batteries and other accessories must not be disposed of as unsorted

municipal waste and must be collected separately at the end of the products life. Con-

tact your local authority for information about collection points in your area.

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BRK (“the BRK Brands Europe Ltd products”) as distributed by Sprue Safety Products

Ltd (“the Distributor”), are guaranteed by the Distributor to be free from defects in materi-

als and workmanship under normal use and service for a period of five years from the

date of purchase.

Neither the Distributor nor BRK Brands Europe Ltd make any guarantees for this prod-

uct. No agent, representative, dealer or employee from the Distributor or BRK Brands Eu-

rope Ltd has the authority to increase or alter the obligations or limitations of the

Guarantee.

The Distributor’s obligation of this guarantee shall be limited to the repair or replacement

of any part of the smoke or heat alarm which is found to be defective in materials or

workmanship under normal use and service during the five year period commencing

from date of purchase. The Distributor shall not be obligated to repair or replace smoke

or heat alarms which are found to be in need of repair because of damage, unreasonable

use, modifications or alterations occurring after the date of purchase. This warranty does

not affect a customer’s statutory rights in any way.

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If service is required, return the product to your retailer. The Distributor makes no guar-

antee, express or implied, written or oral, including that of merchantability or fitness for

any particular purpose with respect to battery. YOUR ALARM IS NOT A SUBSTITUTE

FOR PROPERTY, DISABILITY OR OTHER INSURANCE OF ANY KIND. APPROPRIATE

COVERAGE IS YOUR RESPONSIBILITY. CONSULT YOUR AGENT. In the event of a

problem with your alarm or you have any questions concerning its use; care and service

please consult this manual.

If you require any further help or clarification please write to:

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an alarm and may prevent occupants from hearing an alarm on the other side of a

closed door. Install sufficient alarms to compensate for closed doors and other ob-

stacles.

9. Your local fire brigade or insurance company may be able to give you further ad-

vice. Call them and ask. Further help and information may also be found in BS5839

Part 6 and the Fire Safety guidance given by the Department of Transport, Local

Government and the Regions (DTLR).

 "$$ These smoke and heat alarms are intended primarily for use in sin-

gle-family occupancy private dwellings. For use in other applications the manufac-

turers advice should be sought. $#$&

$ locate alarms: -

1. In turbulent air from fans, heaters, doors, windows, etc.

2. In high humidity areas such as bathrooms and shower rooms or where the temper-

ature exceeds 39ºC (100ºF) or falls below 5ºC (40ºF)

3. At the peak of an ‘A’ frame ceiling – dead air at the top may prevent smoke and

heat from reaching the alarm to provide an early warning.

4. Less than 300mm (12 inches) from a wall when mounted on the ceiling.

5. In insect infested areas. Tiny insects may affect performance.

6. (Smoke alarms) in poorly ventilated kitchen or garage. Combustion particles from

cooking or car exhaust could trigger a nuisance alarm

7. In very dusty or dirty areas – dirt and excessive dust can impair the performance

of the alarm.

8. Within 300mm (12 inches) of a light fitting or room corners.

9. In locations that would make routine testing or maintenance hazardous. (e.g. over

a stairwell).

10. On poorly insulated walls or ceilings.

11. Near objects such as ceiling decorations that might impede the path of smoke or

heat to the alarm.

12. Within 1500mm (5 feet) of a fluorescent light fitting and keep wiring at least

1000mm (39 inches) from these fittings. Do not install alarms on circuits containing

fluorescent light fittings or dimmer switches.

Further help and information may be found in BS5839 Part 6

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• Operating Lights – A continuous green light indicates the alarm is receiving mains

power. The red light doubles as an alarm source indicator and flashes approxi-

mately every 45 seconds to confirm circuitry integrity.

• Alarm Source Indicator – Red light will flash every second in the unit originating the

alarm. Red lights on other alarms flash every 45 seconds.

• Alarm Pause (670 & 650 range only) – Silence your smoke alarm by momentarily

pressing the test button. Ideal when non-emergency smoke (e.g. cooking fumes)

cause nuisance alarms. Red light flashes every ten seconds to remind you that the

alarm has been silenced. Double beep indicates that the alarm has automatically

reset after approximately 10 minutes.

. :.9*:.-

Smoke and heat alarms properly installed and maintained are an essential part of a

good home fire safety programme. Review fire hazards and eliminate dangerous con-

ditions wherever possible. When fire strikes a prepared and practiced escape plan

could prove vital. Your local fire brigade may be willing to advise you. Call them and

ask. Consider and discuss the following safety hints:

• Ensure everyone is familiarized with the alarm signal.

• Always test doors with your hands before flinging them open. If they feel warm, fire

may be walled up behind them – leave closed and find another escape route.

• Don’t waste time collecting possessions. Rouse all occupants and leave the build-

ing; your life is more valuable.

• $%$#$)%$$$""%$

• Keep everyone in a set meeting place after your escape.

• If trapped inside, stay close to the floor, cover your mouth with cloth and conserve

breath while you crawl to safety.

• Keep all windows and doors closed except for escape purposes.

• Prepare and practice an escape plan before a fire starts.

Draw a floor plan. Have fire drills often. Practise your escape.

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Vacuum every six months to keep unit working efficiently by firstly turning off the

mains electricity supply and vacuuming through the vents using a soft brush attach-

ment. Keep the nozzle from touching the unit. SWITCH POWER BACK ON WHEN

YOU HAVE FINISHED.

Test the alarm once a week by: -

• Checking that the green light is on and that the red light is flashing every 45 seconds

or so. The lights are located behind the grille on the front of the alarm.

• Press and hold the test button until the alarm sounds. NOTE: Pressing this button on

alarms in the 670 and 650 series also places the alarm in pause mode.

(#(((

Change the battery with a new one when the alarm beeps every 45 seconds.

Turn off the mains electricity supply, remove locking key, rotate the alarm approxi-

mately 10mm anti-clockwise and remove the alarm from the ceiling. Unplug the alarm

from the mains supply. Remove the screw and prise open the battery compartment

door on the back of the alarm to replace the battery with one of the following: Duracell

MN1604, MX1604, Eveready PP3B PP3S, 6LF22 Gold Peak 1604A, 1604S. Close the

battery door refit the screw and re-assemble the alarm to the ceiling ensuring that the

mains plug is securely fitted. Test the alarm using the test button then turn on the

mains electricity supply. PLEASE NOTE: The alarm cannot be fitted to the baseplate

without a battery installed.

For 670,650 and 680 series units installed on a DS700 surface mounting base

(770, 750 and 780 series).

1. Turn off the power. Green LED should be off.

2. Using a small flat blade screwdriver gently flex the locking clips on the side of the

base away from the alarm.

3. Using your other hand, disconnect the alarm by gently pulling away from the base.

4. When alarm is removed, remove screw and open battery door on the rear of the

alarm. Replace battery with Duracell MN1604, MX1604, Eveready PP3S, 6LF22,

Gold Peak 1606A or 1604S. Close battery door and refit the screw.

5. Press the test button on the alarm to ensure correct operation be re-installing.

Locate the molded arrow on the side of the base and smoke alarm see fig 3. Posi-

tion the smoke alarm just below the base with both arrows in the same orientation

and locate the alarm onto the base by gently applying pressure until the alarm

‘clicks’ into place.

7. Restore mains power and ensure green LED lights and press the test button to con-

firm operation.

"""

Rechargeable Lithium batteries provide approximately 6 months back up power sup-

ply in the event of a mains supply failure. The alarm may beep every 45 seconds for a

few hours after a mains supply failure while the batteries re-charge.



High performance rechargeable capacitors provide a back up power supply in the

event of a mains supply failure. The alarm may beep every 45 seconds for a few hours

after installation or during/after a mains supply failure. In both of these events the

rechargeable capacitors will need to charge/re-charge when mains supply is restored.

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Problems are indicated by four events: -

1. Alarm does not sound upon pressing the test button

2. Green light does not illuminate when mains power is on.

3. Red operating light remains steadily on, or off (i.e. does not flash every 45 seconds

when alarm is in standby).

4. Alarm emits a beep every 45 seconds when back up power supply should be fully

charged.

Try the following: -

1. Inspect the fuse in the power circuit to the alarm

2. Gently vacuum as detailed in ‘Simple Maintenance’.

3. For MBX models only, replace the battery.

4. Call a qualified electrician to inspect the house wiring and connections to the alarm.

If these procedures do not eliminate the problem. DO NOT ATTEMPT REPAIRS. In the

first instance contact the manufacturer for further advice.

If the alarm is still within warranty period and terms, return the unit with proof of pur-

chase to the distributor, indicating the nature of the problem. Units beyond warranty

cannot be economically repaired. For address see the bottom of this page.

Single storey,

one sleeping area

Dining

Room

Dining

Room

Living

Room

Living

Room

Living

Room

Kitchen

Kitchen Garage

Hall

Kitchen

Bedroom Bedroom Bedroom

Bedroom

Bedroom Bedroom

Bedroom

Smoke alarms for limited protection

Additional smoke alarms for better coverage

Heat alarms

Single storey,

two sleeping areas

Two storey

dwelling

BS5446-2:2003

Licence No: KM85855

BS EN 14604: 2005

Licence No: KM99052

680, 780 Range

650 & 670, 750 &

770 Range

0086-CPD-517190

EN 14604: 2005

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650 & 670, 750 &

770 Range

680 & 780 series

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BRK 750MBX Manual

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