Ei Electronics Ei 261DEN User manual

Model Ei 261EN
Model Ei 261DEN
WITH DIGITAL DISPLAY
DIGITAL DISPLAY
Ei261DEN ONLY
Read and retain carefully for as long as the product is being used. It contains vital information on the
operation and installation. The leaflet should be regarded as part of the product.
If you are just installing the unit, the leaflet must be given to the householder. The leaflet is to be given to
any subsequent user.
MAINS POWERED
CARBON MONOXIDE ALARMS
WITH RECHARGEABLE LITHIUM CELL BACK-UP
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READ THIS FIRST
CARBON MONOXIDE - THE SILENT KILLER!
WHERE TO PLACE CARBON MONOXIDE ALARMS
INSTALLING YOUR CARBON MONOXIDE ALARMS
TESTING YOUR CARBON MONOXIDE ALARMS
MAINTAINING CARBON MONOXIDE ALARMS
LIMITATIONS OF CARBON MONOXIDE ALARMS
HOW TO PROTECT YOUR FAMILY
TECHNICAL SPECIFICATIONS
GETTING YOUR CARBON MONOXIDE ALARMS SERVICED
FIVE YEAR GUARANTEE
TROUBLESHOOTING
Page
CONTENTS
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1. READ THIS FIRST
WARNING
The Alarm should be permanently wired to the mains by a qualified electrician in accordance with IEE
wiring regulations (BS7671).
Install the Carbon Monoxide Alarm (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 (perferably) on the ceiling (300mm from walls) and between 1m
to 3m horizontally from appliance. In rooms remote from the appliance install at breath level, where
the light indicators can be seen.
Regularly check that the green power light is on, so that standby rechargeable cells will fully
charge. Important: The CO Alarm will not work if the mains supply is off and the rechargeable cells
are depleted.
Test the unit weekly by pressing the test/hush button-the horn will sound.
Replace sensor module after 5 years operation (see page 20).
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What to do when the alarm sounds:
(1) Open the doors and windows to ventilate the area.
(2) Turn off all fuel appliances where possible and stop them. (The alarm can be silenced
immediately by pushing the test/hush button).
(3) Evacuate the property leaving the doors and windows open.
(4) Get medical help immediately for anyone suffering the effects of Carbon Monoxide poi-
soning (headache, nausea), and advise that Carbon Monoxide poisoning is suspected.
(5) Ring your gas or other fuel supplier on their emergency number. Keep the number in a
prominent place.
(6) Do not re-enter the property until the alarm has stopped. (If the alarm has been silenced
by pressing the test/hush button, wait at least 5 minutes so the alarm can check that the CO
has cleared).
(7) Do not use the fuel appliances again until they have been checked by an expert. In the
case of gas appliances this must be a CORGI registered installer.
When the CO Alarm detects abnormal levels of CO (above 50ppm CO) the red light starts to flash
and the horn will sound within 90 minutes. At higher levels of CO the alarm will turn on sooner (see
table B - page 6).
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The CO Alarm will automatically reset
once the CO has cleared. Pressing the
test/hush button resets the CO Alarm
immediately (below 300ppm CO). If CO
is still present the red light and horn will
turn on again after about 4 minutes.
The CO Alarm is no substitute for keep-
ing chimneys and flues clear and in
good condition, and all of your appli-
ances serviced regularly according to
the manufacturer’s instructions.
Do not fit alarm until all building work
is completed to avoid contamination.
2. CARBON MONOXIDE
- THE SILENT KILLER!
2.1 What is Carbon Monoxide ?
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. (CO is the chemical symbol, indi-
cating the module has one carbon atom and
one oxygen atom).
?
?
LOCATION FOR
TAMPERPROOF SCREW
(see page 16)
PUSH SMALL
SCREWDRIVER
STRAIGHT IN
TO RELEASE.
PUSH COVER
BACK
WARNING: DISCONNECT MAINS BEFORE REMOVING ALARM FROM
CEILING OR WALL
TAMPERPROOF CATCH
MOUNTING PLATE
SIDE VIEW
GAS ENTRY HOLES
Figure 1 - Alarm Installation
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Many 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 burn-
ing 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.
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.
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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 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.
Table A: Effects of Carbon Monoxide Poisoning
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
Concentration
of CO in Air Inhalation Time (approx) and Symptoms Developed
ppm = parts per million
*OSHA Occupational Safety & Health Association
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2.3 What happens when your CO Alarm detects Carbon Monoxide ?
When the Alarm detects potentally dangerous levels of CO, it flashes the red alarm light and then sounds
a loud alarm if the CO persists. The digital display indicates the CO level in parts per million, ppm CO,
(Model Ei261DEN only).
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.
Table B: CO Alarm Response
* unless it has been in alarm (see CO Alarm Memory below)
If your CO Alarm sounds follow the instructions on page 2.
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.
CO Level
ppm
Horn On
within
Red
Alarm Light
0 ppm
50ppm
100 ppm
300 ppm
Off
60 to 90 minutes
10 to 40 minutes
3 minutes
Off *
1 Flash / 2 Seconds
2 Flashes / Second
4 Flashes / Second
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NEVER IGNORE THE ALARM.
Pre-Alarm: When the alarm detects over 50ppm 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 50ppm CO for 90 minutes for an indication 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.
NOTE: The CO Alarm may sound if cigarette smoke is blown into it, or aerosols are released nearby.
CO ALARM MEMORY.
When the test button is pressed the horn will sound, and the red light will only flash if the unit has
previously detected CO and been in alarm. The flash rate indicates the level of CO detected as below:-
- Red light is Off – No CO detected since reset or power up.
- Red light flashes 2 times (in 2 seconds) every 40 seconds, 50 ppm CO detected for about 90 minutes
since reset or power-up.
- Red light flashes 4 times (in 2 seconds) every 40 seconds, 100 ppm CO detected for about 40
minutes since reset or power-up.
- Red light flashes 8 times (in 2 seconds) every 40 seconds, 300 ppm CO detected for about 3 minutes.
Reset Memory by holding down the test button for over 20 seconds until the red light stops flashing.
Cover the horn with a cloth to muffle the alarm during this time.
Ei261-DEN Only
When the test button is held the display shows the previous peak reading. This tells you if the unit has
detected CO in your absence and helps to detect and locate leaks, monitor premises etc.
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When the test button is held for 20 seconds the peak reading resets to zero. (Cover the horn with a cloth
to muffle the loud alarm).
Please note that the memory will also be reset when the unit is removed from the mounting plate.
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 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
- If the appliance is in a room not normally used, such as a boiler room, the CO alarm should be placed
just outside the room so that the alarm will be heard more easily.
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3.2 Unsuitable Locations
Do not place the CO Alarm in any of the following areas.
(1) In the immediate vicinity of a cooking appliance (keep it at least 1 metre horizontally from it).
(2) Outside the building.
(3) In an enclosed space (e.g. in or below a cupboard).
(4) In a damp or humid area.
(5) Directly above a sink or cooker.
(6) Next to a door, window, air vent or anywhere that it would be affected by draughts.
(7) Next to an extractor fan.
(8) Where it would be obstructed, e.g. by curtains or furniture.
(9) In an area where the temperature could drop below –10°C or rise above 40°C.
(10) Where dirt or dust could block the sensor.
(11) Where it could be easily knocked or damaged, or where it could be accidentally turned off or
removed.
(12) In a bathroom or other areas where the CO alarm may be exposed to water splashes, dripping or
condensation (e.g. above an electric kettle).
(13) Near paint, thinners, solvent fumes or air fresheners.
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3.3 If locating the CO alarm in a room with a fuel burning appliance (see figure 2)
• If it is mounted on a wall, it should be located at a height greater than the height of any door or window
but still be at least 150mm from the ceiling.
• If it is mounted on the ceiling it should be at least 300mm from any wall or light fitting.
• The CO alarm should be a horizontal distance of between 1m and 3m from the potential CO source.
• If there is a partition in the room, the CO alarm should be located on the same side of the partition as
the potential source.
• In rooms with sloped ceilings, the CO alarm should be located at the high side of the room (see fig 3).
3.32 If locating the CO alarm in a bedroom or in rooms remote from a fuel burning appliance
(see figure 4)
• Mount the CO alarm relatively close to the breathing zone of the occupants.
Whatever position is chosen make sure it is possible to view the three light indicators, when in the
vicinity of the alarm.
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300mm
150mm
1 to 3 m
1 to 3 m
DEAD AIR
DON'T LOCATE
HERE
CO Alarm
Figure 2. Location in room with a fuel burning appliance
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300mm
CO Alarm
CO Alarm
about
1 to 2m
Figure 4. Location in bedroom & rooms remote
from the appliance
(i.e. at breathing level)
Figure 3. Location in rooms with sloped
ceilings, the CO alarm should be located
at the high side of the room
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4. INSTALLING YOUR CARBON MONOXIDE ALARMS
The Alarm is designed to be permanently mounted, using its own built-in terminal block to connect it to
the mains. The mounting plate can be screwed directly to the ceiling. Alternatively it can be screwed to a
standard junction box (BS 4662 single gang accessory box). It requires a current of 60mA. The Alarm
must not be exposed to dripping or splashing. There are important markings on the underside of the
alarm.
IMPORTANT PRECAUTION: Do not install the actual alarm itself in new or renovated buildings
until all work is completed (including floor coverings) and the building has been fully cleaned.The
wiring can be installed when appropriate. (Excessive dust and debris from building work can con-
taminate the sensor and cause problems, it will also invalidate the guarantee). If it must be
installed, cover it completely, particularly around the edges, with a dust cover, until all cleaning
is finished.
The Alarm must not be connected when the house wiring insulation is being checked with high voltages
i.e. don’t use an insulation tester on the alarm.
WARNING: Do not use the CO Alarm on an intermittent basis, or as a portable detector for the spillage
of combustion products from fuel burning appliances or chimneys.
WARNING: Mains operated Alarms should be installed and interconnected by a qualified electrician in
accordance with the Regulations for Electrical Installations published by the Institution of Electrical
Engineers (UK). Failure to install this Alarm correctly may expose the user to shock or fire hazards.
WARNING: The Alarm must be continuously powered 24 hours a day so it is important that it is not on a
circuit that can be turned off by a switch.
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INSTALLATION PROCEDURE
(1) Select a location complying with the above advice.
(2) Disconnect the AC mains supply from the circuit that is going to be used.
(3) The house wiring must be connected to the terminal block on the mounting plate as follows:
L: Live - connect to the house wires coloured brown or marked L.
N: Neutral - connect to the house wires coloured blue or marked N.
IC: Interconnect - If you are only installing one alarm do not connect any cable to the IC terminal.
See below for information on interconnecting.
Warning: Mixing Live & Neutral wires will damage interconnected alarms.
Do not use an earth wire for the interconnect line. Use a suitably coloured core, with the ends marked
if necessary, for the interconnect that will not be confused with the live or neurtal cores.
(4) Lift off the wiring cover as shown in Figure 5.
N.B. The Alarm does not need to be earthed. However the terminal marked is provided for the con-
venience of the installer so that any copper earth wire or cable coloured green or green & yellow, can be
safely terminated.
(5) If the mains wires are being brought along the surface, conduit can be inserted into the top and/or
bottom, for the cable.
(a) position the mounting plate, so that the cable conduit is as shown in Figure 5.
(b) Carefully cut around the knockout on the outside wall so the conduit fits. (Note: to comply with the
BS EN 60529, IPX2D protection rating, seal around conduit with silicone rubber or similar to prevent
water entering).
(6) If the mains wires are recessed, bring the wires through the rear hole in the mounting plate as shown
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in Figure 6.
(7) Carefully align the mounting plate and screw into place. Connect the wires to the terminal block. With
recessed wiring, ensure the rear gasket seals around the edge of the hole in the ceiling or wall. This is
to prevent air draughts affecting the CO gas entering the alarm. If the orifice is not closed off by the gas-
ket it should be sealed with silicone rubber or equivalent.
Replace the wiring cover.
L N IC
EARTH (IF PRESENT)
L - LIVE
N - NEUTRAL
IC - INTERCONNECT
TERMINAL SCREWS
RECESSED WIRING AREA
MAINS WIRING
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L N IC
KNOCK OUT FOR
SURFACE
WIRING
CONDUIT
WIRING
CONDUIT
INSERT SCREWDRIVER TO LIFT
AND REMOVE WIRE COVER
KNOCK OUT
FOR SURFACE WIRING
CONDUIT
SEALING GASKET (MUST BE IN PLACE)
WIRING
CONDUIT
Figure 5 - Surface Wiring Figure 6 - Recessed Wiring
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Carefully line up the unit on the base and slide on.
Press the test/hush button for 10 seconds. The horn will sound.
CAUTION: Do not attempt to remove the Alarm without first releasing the tamper clip as shown in Figure 1.
(8) Connect the mains power to the alarm circuit. Check the green light is on.
The CO Alarm is now fully operational and will provide protection against a build up of Carbon
Monoxide gas, 70 seconds after it is connected to the mains supply.
(9) The unit may be tamperproofed further, by removing the knockout in the sidewall of the mounting plate
as shown in Figure 1. Insert the self tapping screw (3mm diameter, 12mm long) after the unit is on
the mounting plate.
INTERCONNECTING Ei ELECTRONICS CARBON MONOXIDE ALARMS
With interconnected alarms, when one unit detects CO all units alarm. All horns will sound but only units
detecting CO will flash their red lights.
A maximum of twelve Ei 261EN/261DEN CO Alarms may be interconnected along with an Ei 128C
module with relay (see technical specifications).
WARNING: Do not connect these Alarms to any other type of Ei Alarm, or to any other model
produced by another manufacturer, apart from those listed above. Doing this may damage the
Alarms and could result in a shock or fire hazard.
The interconnect wire (minimum 0.75mm2cable) must be treated as if it was live. It should be insulated
and sheathed.
A maximum of 250 metres (820 ft) of wire can be used (maximum resistance between detectors 50
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ohms). Connect as shown in Figure 7.
These Carbon Monoxide Alarms should be interconnected only within the confines of a single family
living unit. If they are connected between different units there may be excessive nuisance alarms.
Everybody may not be aware that they are being tested etc.
CO ALARMS AND SMOKE ALARMS SHOULD NOT BE INTERCONNECTED!
This is because the actions to take in each situation are very different.
In the case of CO the premises should be fully ventilated by opening doors and windows.The user should
call his gas supplier etc.
In the case of fire ,doors and windows should be closed, to slow the spread of fire. The user should call
the fire brigade etc.
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L N IC L N IC
IC - INTERCONNECT
N - NEUTRAL
L - LIVE
Figure 7 - Interconnect Wiring Diagram
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5. TESTING YOUR CO ALARM
(1) Regularly check that the green mains power light is on. The unit cannot detect CO if the mains power
is not on and the rechargeable battery is depleted. (If it is off check circuit breakers, fuses, wiring etc).
(2) Test the unit weekly by pressing the test/hush button. Hold the test button (for up to 10 seconds) until
the horn sounds for over 5 seconds. This will help to familiarise you and your family with the distinctive
on-off sound of the CO Alarm. This test checks that the electronics and horn are working correctly. If the
units are interconnected, button test each unit in turn and check all interconnected units alarm. (If the red
alarm light flashes when the button is pressed (see CO Alarm Memory section 2.3 above).
(3) If the CO Alarm gives a short beep and the amber fault light flashes every 40 seconds it means the
self-checking circuit has detected a fault. Press and hold the test/hush button. If the amber light flashes
without the horn sounding, the sensor is faulty. On the Ei 261DEN the display will show SF indicating
Sensor Faulty.
(4) If the Alarm fails to operate when the test/hush button is pressed, disconnect the mains supply at the
distribution fuse board, remove unit from mounting plate for 3 minutes. Put unit back on mounting plate.
Re-connect the mains and try again. (This procedure resets the microprocessor in the unit).
(5) If the unit beeps every 40 seconds (without a light flash) it means the battery is depleted. (On the Ei
261DEN with depleted cells, the display will show CP to remind you to Connect mains Power). Connect
mains (ensure green light is on) to allow cells to charge.
(6) Once a year check the rechargeable cells by switching off mains and pressing the test button for 10
seconds. The horn should sound loudly. Re-connect mains power.
If the CO Alarm fails any of the above tests it must be replaced immediately (see section 10 “Getting the
CO Alarm Serviced”).
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