Aico Ei207 series, 208 series User Instruction
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Carbon Monoxide Alarms
Ei207/208 Series
Ei207 / Ei208 Carbon Monoxide Alarm Series
Instructions
Read and retain carefully for as long as the product is being used. It contains vital information on the operation and installation
of your Alarm. The leaflet should be regarded as part of the product.
If you are just installing the Alarm, the leaflet must be given to the householder. The leaflet is to be given to any subsequent
user.
Model Chart
2xAAA Replaceable Batteries
Model
RF
Capability
RF Module
Supplied
LCD
Display
Ei207
Ei207D
No
No
Long Life Battery Built-in
Model
Ei208W
Ei208WRF
Ei208DW
Ei208DWRF
RF
Capability
Yes
Yes
Yes
Yes
No
No
RF Module
Supplied
No
Yes
No
Yes
No
Yes
LCD
Display
No
No
Yes
Yes
Table of Contents
1. Read This First ...................................................................
2. Carbon Monoxide Ð The Silent Killer ..................................
3. Where to Place CO Alarms ................................................
4. Installation ..........................................................................
5. Testing and Monitoring Your CO Alarm ...............................
6. What to do when the alarm sounds ....................................
7. Maintenance .......................................................................
8. Limitations of CO Alarms ....................................................
9. How to Protect your Family .................................................
10. Technical Specification ........................................................
11. Getting the CO Alarm Serviced ...........................................
12. Guarantees .........................................................................
13. Troubleshooting ..................................................................
14. LCD Display Symbols .........................................................
15. Indicators Summary ............................................................
16. Contact Us ..........................................................................
2. Location & Positioning
3
page
4
5
10
15
17
19
20
21
23
25
27
27
28
29
30
31
1. Read This First
• 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.
• The Carbon Monoxide Alarm (CO Alarm) is powered up by carefully rotating it
onto the mounting plate which activates the on/off switch. The red, amber &
green lights will immediately flash in sequence to show they are working. (For the
Display models, the LCD screen will display all icons). Then wait 15 seconds after
connecting the power before button testing.
• Install a 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 (preferably) on the ceiling, (300mm from walls)
and between 1m to 3m horizontally from appliance. In rooms remote from the
appliance install at Ô head heightÕ , where the light indicators can be seen.
• Test the Alarm weekly by pressing the test/hush button, the horn will sound (at
a diminished sound output level initially and then quickly reach maximum sound
output level).
• Replace Alarm after approx 6 years operation (see ‘Replace by’ date on side wall
label).
• Do not fit Alarm until all building work is completed to avoid contamination.
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2. Carbon Monoxide Ð The Silent Killer
2.1 What is Carbon Monoxide ?
Many people 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 burning 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.
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Carbon Monoxide Ð The Silent Killer
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.
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
that 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.
2.3 What happens when your CO Alarm detects Carbon Monoxide ?
When the Alarm detects potentially dangerous levels of CO, it flashes the red alarm
light immediately and then sounds a loud alarm if the CO persists. 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.
If your CO Alarm sounds follow the instructions on page 19.
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.
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Table A: Effects of Carbon Monoxide Poisoning
Concentration
of CO in Air
ppm
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 = parts per million
*OSHA Occupational Safety & Health Association
Inhalation Time (approx) and Symptoms Developed
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Table B: CO Alarm Response
Red Light Display Icon
(before horn sounds)
CO Gas Level
0 < ppm < 30 ppm
30 < ppm < 43 ppm
43 < ppm < 80 ppm
80 < ppm < 150 ppm
> 150 ppm
* unless it has alarmed previously (see CO Alarm Memory below)
ppm values shown in table are for example purposes only
Off* Off Off Off
Off*
1 flash
every 2 secs
1 flash
every sec
2 flashes
every sec
PPM level (steps of 5)PPM level (steps of 5)
058
102
150
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Display Icon
(after horn sounds)
058
102
150
Horn /
Sounder
Off
on within 60-90 mins
(typ 72 mins)
on within 10-40 mins
(typ 18 mins)
on within 2 mins
(typ 40 secs)
NEVER IGNORE THE ALARM.
Pre-Alarm: When the Alarm detects over 43 ppm 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 43 ppm CO for typically
72 minutes for an alarm sound 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.
The Display Models will display the level of CO gas above 30 ppm. This is also
an early warning indication that the CO gas level is building up and should be
investigated. Above 43 ppm CO, the red light will also flash.
NOTE: The CO Alarm may sound if cigarette smoke is blown into it, or aerosols
are released nearby.
CO ALARM MEMORY
The CO Alarm memory is an important feature of the CO Alarm where even if the
house is unoccupied during an alarm condition it warns the homeowner that the unit
has previously detected CO gas and been in alarm. The memory is displayed via
the flash rate of the red light. The red light will flash for a 24 hour period after an
alarm event has stopped. After this period, the memory can be viewed by pressing
and holding the test button (the flash rate will be as per Table B).
The memory flash rate: The RED light will flash at different rates every 50 seconds
depending on the level of CO detected as follows:
- Red light flashes twice every 50 seconds, meaning that a CO level above
43 ppm has been detected and that the unit was previously in alarm.
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- Red light flashes four times every 50 seconds, meaning that a CO level above
80 ppm has been detected and that the unit was previously in alarm.
- Red light flashes eight times every 50 seconds, meaning that a CO level above
150 ppm has been detected and that the unit was previously in alarm.
Reset Memory by holding down the test button for over 12 seconds until the red
light stops flashing. Cover the horn with a cloth to muffle the alarm during this time.
Please note that the memory will also be reset when the unit is switched off.
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 to be fitted 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
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