Elro CBFC28 Manual

Elro Røgdetektor CBFC28

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Side 1/4

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MANUAL

CARBON MONOXIDE ALARM

CBFC28

• If CO concentraon overruns 20PPM, the funcon of

temperature display will be disable.

3.3 CO alarm warning

When the device detects a dangerous level of CO, the device will

emit a loud alarm paern. The alarm signal paern is 4 beeps

followed by 2 seconds of silence. The ALARM indicator (red) will

ﬂash the same paern. This cycle repeats as long as a dangerous

CO condion exists.

Alarm sensivity seng:

Conforms to EN 50291-1:2018

30PPM : Without alarm before 120 minutes

50PPM : Alarm between 60 to 90 minutes

100PPM : Alarm between 10 to 40 minutes

300PPM : Alarm within 3 minutes

NOTE: Refer to “3. What to do if the alarm sounds” when you

hear the sounds of the CO alarm warning.

3.4 CO alarm warning silence

During the device under CO alarm mode, pressing

theTEST/SILENCE buon, it will be paused alarm sound of the

device about 10 minutes. The ALARM indictor (red) will keep

ﬂash as CO alarm mode, it indicates the device is running into

the CO alarm silence mode.

NOTE: The audible alarm signal will reacvate about 10

minutes from the me the TEST/SILENCE buon is operated

where the concentraon of CO surrounding the alarm remains at

50 PPM or greater.

NOTE: The audible alarm signal cannot to silence if the alarm

at concentraon above 200 PPM.

NOTE: The alarm silencing acvaon to once throughout a CO

alarm period.

WARNING! Before enable feature of CO alarm warning silence,

you should be conﬁrmed that the alarm is due to dangerous

levels of carbon monoxide and the dwelling should be venlated.

3.5 Low baery voltage warning

If the device chirps once every 40 seconds, with FAULT indicator

(yellow) will be ﬂash. It indicates the baery is low. The LCD

displays always displays " ".

NOTE: When the low baery voltage warning is occur, the device

has capable of producing a CO alarm signal for at least 4 min or

30 days of low baery voltage warning signal operaon.

NOTE: The device will not protect against the risk of carbon

monoxide poisoning when the baery has drained.

3.6 Low baery voltage warning silence

When the device is under the low baery warning, pressing the

TEST/SILENCE buon, it will come into a low baery voltage

warning silence status for about 9 hours, meanwhile it will

appear " " on LCD, and FAULT indicator (yellow) sll keep

ﬂashing.

NOTE: The silence feature of low baery voltage warning is

temporary acon to cancel warning sound eﬀect, you need

replace the baery as soon as possible.

3.7 Fault warning

If the device chirps twice every 40 seconds with FAULT indicator

(yellow) will be ﬂash. It indicates the CO alarm is in malfuncon

condion. The LCD displays " Err ", that means your CO alarm

have no detecng funcon and no respond CO.

NOTE: Maybe the sensor is missing, replace the device

immediately. Please contact us to more service.

3.8 Fault warning silence

When the device is in a fault state, press the TEST/SILENCE

buon, it will enter the fault warning mute state for about 9

hours, while displaying " " on the LCD, and the FAULT indicator

(yellow) remains ﬂashing.

NOTE: The silence feature of fault warning is a temporary acon

to cancel warning sound eﬀect, you need replace the device as

soon as possible.

3.9 End-of-life warning

If the device chirps 3 mes every 40 seconds with FAULT

indicator (yellow) ﬂash and the LCD displays ‘End’. It indicates

end of life of CO alarm. You need to immediately replace the CO

alarm.

3.10 End-of-life warning silence

When the device is in the End-of-life state, press the

TEST/SILENCE buon, it will enter the End-of-life warning mute

state for about 9 hours, while displaying " " on the LCD, and the

FAULT indicator (yellow) remains ﬂashing.

NOTE: The silence feature of fault warning is a temporary acon

to cancel warning sound eﬀect, you need replace the device as

soon as possible.

Entree

Manufacturer

Siterwell Electronics CO., Limited

No.666 Qingfeng Road, Jiangbei District,

Ningbo, Zhejiang Province, China 315034

Importer:

ELRO Europe | www.elro.eu

Postbus 9607 - Box E800

1006 GC Amsterdam The Netherlands

Minimum

Extra

• Reliable electrochemical sensor

• Incl. 2x 1,5V baeries

• Silence mode

• Low-baery indicator

• End-of-life indicator

The alarm should be installed by a competent person.

This apparatus is designed to protect individuals from the acute

eﬀects of carbon monoxide exposure. It will not fully safeguard

individuals with speciﬁc medical condions. If in doubt consult a

medical praconer.

Document nr.: CBFC28_MN_EN | Revision nr. : 2 | Revision date: 22-09-2021

Type B apparatus

EN50291-1:2018

-1- -2- -3-

Thank you for purchasing the CBFC28 carbon

monoxide (CO) alarm.

This unit uses advanced electrochemical sensor, and with LCD

digital display for CO concentraon. Please take a few minutes to

thoroughly read the user manual before operang or servicing

and familiarize yourself andyour family with its operaon. And

save for future reference.

CAUTION:

This CO alarm is designed for indoor use only. Do not expose to

rain or moisture. Do not knock or drop the detector. Do not open

or tamper with the alarm as this could cause malfuncon. The

alarm will not protect against the risk of carbon monoxide

poisoning when the baery has drained. Installaon of the alarm

should not be used as a substute for proper installaon, use

and maintenance of fuel burning appliances including

appropriate venlaon and exhaust systems.

WARNING! - Do NOT try to repair the device, it has the risk of

electric shock or malfuncon if the device is tampered with.

Table of Contents

1. Installaon instrucons

2. Product overview

3. Understanding your CO alarm

4. What to do if the alarm sounds

5. Baery installaon/replacement

6. General maintenance

7. Carbon monoxide overview

8. Speciﬁcaon

1. INSTALLATION INSTRUCTIONS

1.1 Installaon locaon

When choosing your installaon locaons, make sure you can

hear the alarm from all sleeping areas. If you install only one CO

alarm in your home, install the alarm near bedrooms. Not in the

basement or furnace room. The recommended posion for the

unit should be at least 1.8 meters (about 6 feet) above the ﬂoor

level.

CAUTION: This alarm should be installed by a competent person.

1.2 Mounng step

1. Drilling two ф5.0mm holes in the wall, the distance between

two holes center is 52mm, then inserng two plasc stopper

provided into the holes.

2. Insert the two screws provided unl the screw heads are

approximately 5mm from wall.

3. Test the unit by using the TEST/SILENCE buon. Ensure the

unit sound is alarm paern.

4. Hook the unit over the screws onto keyholes in back of unit.

1.3 Recommended installaon locaons:

The following suggesons are intended to help you with the

placement and installaon of your CO alarm.

• Place out of the reach of children. Under no circumstance

should children be allowed to handle the CO alarm.

• Install in a bedroom or hallway located close to the sleeping

area. Take special care to verify the alarm can be heard in

sleeping areas.

• It is recommended that a CO alarm be installed on each level

of a mullevel home.

• Locate 1~3 meter (3.3~10feet) away from all fuel burning

appliances.

• Placing at eye level allows for opmum monitoring of the red

and green indicator lights.

• Insure that all vents of the unit are unobstructed.

• Do not install in dead air spaces such as peaks of vaulted

ceilings, or gabled roofs.

• Do not install in turbulent air from ceiling fans.

• Do not place near fresh air vents or close to doors and

windows that open to the outside.

• Keep the CO alarm away from excessively dusty, dirty, or

greasy areas such as kitchens, garages and furnace rooms.

Dust, grease and household chemicals can aﬀect the sensor.

• Keep out of damp and humid areas such as the bath room.

• Avoid spraying aerosols near the CO alarm.

• Do not install in areas where the temperature is below -10°C

or hoer than 45°C.

• Do not place behind curtains or furniture. CO must be able to

reach the sensor for the unit to accurately detect CO.

2. PRODUCT OVERVIEW

2.1 FAULT indicator

The FAULT indicator (yellow LED) is used to indicate fault or

warning status of the CO alarm.

2.2 POWER indicator

The POWER indicator (green LED) is used to indicate power

status of the CO alarm. The POWER indicator will ﬂash every 40

seconds.

2.3 ALARM indicator

The ALARM indicator (red LED) is used to indicate alarm status of

the CO alarm.

2.4 TEST/SILENCE buon

The TEST/SILECNE buon is used to test the unit. Press and hold

to enable TEST funcon.

2.5 Alarm sounder

The alarm sounder is used to send out CO alarm warning and

fault warning informaon.

2.6 LCD screen

Indicates CO concentraon and alarm status.

3. UNDERSTANDING YOUR CO ALARM

3.1 Start up

When ﬁrst power on, the POWER indicator (green) ﬂash every

second, This is preheated state, 60 seconds later the POWER

indicator (green) ﬂashing every 40 seconds indicates the unit is

funconing properly. The LCD displays all segments 4s and count

down. When the countdown is "0", the product goes into normal

operaon.

3.2 Normal operaon

• The POWER indicator (green) ﬂashing once every 40 seconds.

• The LCD alternately displays current CO concentraon and

temperature every 40s.

• CO concentraon display range 0~999PPM.

• If the CO concentraon is under 20PPM, the LCD will

display "0PPM".

• If the CO concentraon overruns 999PPM, the LCD will

display "999PPM".

• Temperature display range: -9~50°C.

CARBON MONOXIDE ALARM

2.5

2.4

2.6

2.2 2.32.1

Produkt Specifikationer

Mærke:	Elro
Kategori:	Røgdetektor
Model:	CBFC28

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