Alecto SCA-10 Smoke and Carbon Monoxide Alarm Pack Instruction Manual

Alecto SCA-10 Smoke and Carbon Monoxide Alarm Pack

GENERAL

What is carbon monoxide?
Carbon monoxide, designated CO, is also called carbon monoxide. It is a colorless, tasteless, odorless and poisonous gas. ATTENTION this is CO (carbon monoxide) and not CO2 (carbon dioxide).
YOU CAN NOT SEE, SMELL OR TASTE CARBON MONOXIDE AND IT CAN BE FATAL.
CO is emitted as part of a hot gas mix and therefore it tends to rise until it cools down. This is in contrast to CO2, which is heavier than air and drops. All fuel types can produce carbon monoxide.
Most common CO sources:
The most common carbon monoxide sources are (faulty) gas devices used for:

• Heating (Central heating boiler, Geyser, gas heater, portable fuel stoves)
• Cooking
• Vehicles running in an adjacent garage
• Clogged chimneys, smoke ducts or fireplaces
• Fuel-powered tools
• The use of open fire in an enclosed space

The SCA-10 does not detect any gases other than CO gas.
Symptoms of carbon monoxide poisoning:
Symptoms of carbon monoxide poisoning are dizziness, fatigue, weakness, headaches, nausea, vomiting, sleepiness and confusion. Everybody is sensitive to the dangers of carbon monoxide, experts agree however that small child, pregnant women and their unborn babies, elderly people and persons with heart or breathing problems have the highest risk of serious or even fatal injuries. Every year an authorized installer must inspect and clean your heating system, vents, chimney and smoke ducts.
Important:

• This detector is not a replacement for other gas detectors.
• The detector must be installed by a competent person.
• This detector cannot protect people with special medical conditions
• This detector might not prevent any chronic health effects of carbon monoxide on the body.
• This detector is not a replacement for the correct installation, use and periodic maintenance of combustion equipment, nor adequate ventilation of spaces in which these devices are being used.
• We recommend you to weekly test the detector using the “TEST/SILENCE” button on the detector.
• The detector’s CO part only sounds the alarm when carbon monoxide is present at its sensor. Therefore, it’s possible for carbon monoxide to be present elsewhere and the alarm doesn’t sound.
• When the alarm sounds, possible harmful carbon monoxide levels are present! Carbon monoxide can be deadly!

CO

concentration

| Period of inhaling and symptoms
---|---
50PPM| The maximum concentration a healthy adult can withstand in 8 hours.
200PPM| After 2-3 hours, mild headache, sensations of weakness, dizziness, nausea.
400PPM| Within 1-2 hours, ache in forehead; after 3 hours, life-threatening.
800PPM| Within 45 mins, dizziness, nausea, convulsions; Loss of consciousness within 2 hours; Fatal within 2-3 hours.
1600PPM| Within 20 mins, headache, dizziness, nausea; Fatal within 1 hour.
3200PPM| Within 5-10 mins, headache, dizziness, nausea; Fatal within 25-30 mins.
6400PPM| Within 1-2 min, headache, dizziness, nausea; Fatal within 10-15 mins.
12800PPM| Fatal within 1-3 min.

Alarm

When the detector sounds the alarm, carbon monoxide (CO) might be present which can be fatal. Therefore, never ignore this alarm. When there’s an active alarm, the red LED will illuminate and beep tones are emitted. When the smoke dissipates or the carbon monoxide concentration drops below 40PPM, the alarm will stop. What to do when the alarm sounds:

1. Open doors and windows and immediately go outside into the fresh air. Check whether everybody has left the building.
2. Call an official installer to inspect the correct functioning and state of maintenance of the combustion source (gas or oil powered equipment) that could be the cause for the CO alarm.
3. Only enter the building again after the cause has been resolved and the building has been well ventilated.

The alarm sound can be switched off by pressing the TEST/SILENCE button. It will only switch off in case smoke is detected.

IMPORTANT:
For optimal operation, we recommend mounting the smoke detector on the ceiling. See also the installation instructions. If ceiling mounting is not possible, we recommend that you place the smoke detector in the middle of a wall. The installation location must be in the natural airflow of the room and free of side walls or slope.
Recommended locations for the installation of the SCA-10

• Install the detector in a location where the alarm can be heard inside bedrooms.
• Install the detector on a spot where the weekly check can be performed easily.
• We recommend using the combi indicator only in areas where a combustion device is present – which would allow CO and smoke to move quickly towards the ceiling and give a quick alert for both.

In spaces with combustion devices

• Install the detector at 1 to 3 meters away from combustion devices, within the air flow from the combustion device.
• Install the detector way from of roof ridges, corners, arched ceilings or front roofs.
• In the case of smaller spaces (<4m³), the detector should be installed outside these spaces.
• Install the detector 61 centimeters from surrounding walls and ceilings. It is recommended to install the device on the ceiling of a room with a combustion device.

AVOID THE FOLLOWING PLACES FOR INSTALLATION:

• Do not install the detector in the turbulent air created by ceiling fans.
• Do not install the detector near vents with fresh air.
• Do not install the detector near doors and windows leading outdoors.
• Do not install the detector near extremely dusty, dirty or greasy spaces such as heating spaces <4m³ or pantries. Dust, grease and household chemicals can affect the sensor.
• Install the detector at least 0.5 meters away from gas discharge lamps (halogen) because of electronic interference that can lead to false alarms.
• Do not install the detector in humid and wet spaces, such as the bathroom.
• Never install the detector in spaces with temperatures lower than 0°C or higher than 40°C.
• Never install the detector in spaces with humidity higher than 93%RH.
• Never install the detector behind curtains or furniture. Carbon monoxide and smoke must be able to reach the sensor to ensure the sensor can properly detect carbon monoxide levels or smoke.
• Never install the detector flat on a table or similar surface.
• Never install the detector in spaces where spray cans may be used (hairspray, deodorant)

INSTALLATION

1. Install the mounting plate on a suitable spot
2. Use the included plugs and screws.
3. Now install the detector onto the mounting place.
4. The LED will briefly illuminate, the detector will emit a short audio signal.
5. You can perform the first test by briefly pressing the test button, see also paragraph “Testing”.
6. The detector is now functional.

USE

1. Every 40 seconds, the green “POWER” LED will flash to indicate the detector is working.
2. The table below shows when the detector will sound the alarm.
   CO concentration| NO ALARM

until after

| ALARM

within

---|---|---
33PPM| 120 min.| –
55PPM| 60 min.| 90 min.
110PPM| 10 min.| 40 min.
330PPM| –| 3 min.
3. When the alarm sounds, it will turn off within 40 seconds after moving the detector to a space with a CO concentration below 40PPM and without smoke. 4. The alarm sound can temporarily be turned off by pressing the TEST/SILENCE button (only during smoke detection). 5. Every 40 seconds, the detector will automatically perform an error check.

TEST/SILENCING

When the detector is working under normal conditions, the sensor and siren should be tested at least every week. Press the “TEST/SILENCE” button. The device will shortly beep once, then beep three times while the red LED blinks, then beep four times shortly while the red LED blinks. This indicates the device is OK.
RESET ALARM:
The alarm can sometimes activate because of environmental influences, for example due to water vapor or dust. You can press the “TEST/SILENCE” button to silence the alarm for 10 minutes. It is not possible to stop the alarm if CO is detected.
The red LED continues flashing but the siren will stop for 10 minutes. If there is still smoke detected after 10 minutes, the alarm will continue.

LED INDICATION:

• Red LED
• Yellow LED
• Green LED

3x every 1,5 seconds with alarm; Smoke detected 4x every 5 seconds with alarm; Carbon monoxide detected Every 40 seconds; Sensor problem. If cleaning with a soft, dry brush will not resolve this, it means the sensor is defective. 2x every 40 seconds with beep: Battery almost empty. The product needs to be replaced soon (Press the “TEST/SILENCE” button during the beep to silence this alert tone for about 9 hours Normal functioning, flashes every 40 seconds

REASON FOR SENSOR FAULT:
Faults can be caused by broken circuitry, a faulty sensor or faulty electronic parts. If cleaning the sensor with a dry, soft brush does not stop the yellow light from flashing, this means the product is defective.
SENSOR FAULT CAUSED BY CHEMICAL GASES:
When volatile chemical gases such as alcohol are the cause for error detection, this may be corrected by pulling the detector off the ceiling plate and leaving it in fresh air for 24 hours. This may restore the CO sensor. If the error is not cleared after these 24 hours, the detector is faulty and should be replaced. Don’t repair the detector yourself, but have it repaired by the importer. When the alarm is contaminated and damaged by high concentrations of chemical gases, the sensor could be affected. This will lead to a temporary error or permanent damage. When the alarm sounds and you can smell a chemical gas, this could be the reason. Carbon monoxide is a colorless and odorless gas. Chemical gases do have an odour. The following substances and gases can cause false alarms or permanently damage the detector: Methane, propane, iso-butane, ethylene, ethanol, alcohol, isopropanol, benzene, toluene, acid, ether, hydrogen, hepatic gas, sulfur dioxide, aerosol, propellant, alcohol preparation, paint, thinners, dissolvent, bonding agents, shampoo, aftershave balm, perfume, car exhaust (cold start) and certain cleaning agents.

MAINTENANCE

To keep your detector in proper working order, please follow these steps:

• Check whether the alarm is working properly by pressing the test button every week.
• Clean the detector with a soft cloth or brush once every month to remove excess dust.
• Explain to children that they should not play with the detector.
• Ensure children are aware of the dangers of carbon monoxide poisoning and fire.
• Never use cleaning agents or other solutions to clean the detector.
• Never use air fresheners, hairspray or other aerosols near the detector.
• Don’t paint the detector. Paint covers the vents preventing the sensor from detecting CO or smoke.
• Never disassemble, repair or modify the product yourself; there’s a high risk that it will no longer function correctly or reliably.

PLAN AN ESCAPE ROUTE

• Make a map and mark all locations of doors and windows and a possible escape route. Note that you may need an escape ladder on high floors.
• Ensure everyone in the house knows the sound the smoke alarms produce and regularly practice use of the escape route.
• Leave the house immediately according to the plan when hearing the alarm. Every second counts: so respond quickly. If you do not notice smoke or heat, check if everyone in the house is in a secure location.
• Do not open any doors without feeling whether the door is warm or if there is smoke coming from underneath the doors. If it is, do not open that door. If the door is cold, put your shoulder firmly against the door and open it a small amount to check for any heat or smoke first.
• If there is much smoke, keep low and take shallow breaths, preferably through a moist towel. Call the fire department as soon as you are safe outside.

BATTERY REPLACEMENT
The battery has a lifespan of 10 years. After 10 years you should replace the entire product because the battery cannot be replaced.
SENSOR REPLACEMENT:
The sensor has a lifespan of 10 years. After 10 years you should replace the entire product because the sensor cannot be replaced. If the yellow LED illuminates within these 10 years, please refer to the paragraphs Reason for sensor fault and Sensor fault caused by chemical gases.

SPECIFICATIONS

• Power supply:
  • 3VDC (EVE17450L; PAIRDEER CR17450 INCL., non-replaceable)
• Sensitivity and time:
  • 30ppm CO, an alarm is not activated within 120 minutes
  • 50ppm CO, an alarm is activated within 60~90 minutes
  • 100ppm CO, an alarm is activated within 10~40 minutes
  • 300ppm CO, an alarm is activated within 3 minutes
  • 0.09~0.15 dB/m smoke, an alarm is activated immediately
• standby consumption:
  • <20µA
• consumption at alarm:
  • <20mA
• Sound pressure at alarm:

  • 85dB (1m distance)

• Environmental conditions:
  • 0ºC ~ +40°C, 30~93% humidity
• Storage conditions:
  • -20ºC ~ +50ºC, 10~95% humidity
• Dimensions:
  • 135*40mm
• Weight: 185g
  • Type B (unchecked output)
• Type:
  • Photo-electric
• Smoke sensor:
  • Electro-chemical
• CO sensor:
  • EN14604:2005 + AC:2008
• Conforms to:
  • EN50291-1:2018

DEACTIVATE
Before disposing of the product at an appropriate collection point, deactivate the product. A plastic deactivation key is located under the top of the product label. Break it off and insert it into the hole at “Warning”.

DECLARATION OF Performance:
Is available at the following internet address: http://DOC.hesdo.com/SCA- 10_DOP_1.pdf

References

• Alecto.nl | 45+ jaar een betrouwbaar merk voor Consument Elektronica

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