; OWNER'S MANUAL - SD Fire Alarms
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									                          CARBON                                                  repeating series of four beeps followed by a 5 second pause.         C. What are the possible symptoms of                             Potential sources of carbon monoxide in your
                                                                                  The Yellow (fault) Light – The yellow light will either flash           carbon monoxide poisoning?                                    home/office:
                          MONOXIDE alarm                                          once every 60 secs (in battery mode) or be on all the time if        Carbon monoxide (CO) is odourless, colourless, tasteless
OWNER’S                   COVERS
                                                                                  a fault occurs. This will be accompanied by two short beeps
                                                                                  every 60 seconds. This will happen if the sensor is missing
                                                                                                                                                       and very toxic. When inhaled, it produces an effect known as
                                                                                                                                                       chemical asphyxiation.
MANUAL                    •Simple Fitting
                           Instructions                                           or defective or if the circuitry has developed a fault. Call our
                                                                                                                                                       Injury is due to the combining of CO with the available
                          •Location Guide                                         help line below if this should happen.
For more information
                          •Operating Guide                                                                                                             haemoglobin in the blood, which lowers the oxygen-carrying
please write to:                                                                  NOTE 1: The unit will perform a self test every 4 weeks to           capacity of the blood. In the presence of carbon monoxide,
                          •Basic Safety Tips
Dicon Safety Products     •Simple                                                 verify the sensor and detection circuitry.                           the body is quickly affected by oxygen starvation.                       Clogged            Wood Burning        Wood or Gas
(Europe) Ltd.              Maintenance                                                                                                                                                                                        Chimney Flue            Stove             Fireplace
P Box 402                  Instructions
                                                                                  NOTE 2: On interconnected alarm system with more than                The following symptoms are related to carbon monoxide
Gloucester                                                                        one alarm, only the originating alarm will show the red light.       poisoning and should be discussed with all members of the
GL2 9YB                                                                           All the others will just sound the alarm.                            household so that they know what to look for:
                                                                                  Automatic sensor replacement indicator.                              Extreme Exposure (A-C) below. Unconsciousness,
                                                                                  The Automatic Sensor Replacement feature on this Carbon              convulsions, cardio respiratory failure, death.
                                                                                  Monoxide alarm reminds you to replace the sensor after six
                                                                                                                                                       Medium Exposure (D-G below) Severe throbbing headache,
                                                                                  years by beeping three times every 60 seconds. This                                                                                           Car and              Gas Water        Gas Appliances
                                                                                                                                                       drowsiness, confusion, vomiting, fast heart rate
                           PLEASE KEEP THIS MANUAL IN A SAFE PLACE
                                                                                  warning will continue until the sensor is replaced. Replacing                                                                                 Garage                Heater
                                                                                  the sensor will allow your alarm to be used for up to 12             Mild Exposure (H-J below) Slight headache, nausea, fatigue
                               BATTERY OPERATED MODELS:                           years. WARNING: The sensor can only be replaced once.
                                   CO850B, CO850BS                                                                                                     (often described as ‘flu-like’ symptoms)
                                                                                  Do not use your alarm for more than twelve years.
                                MAINS POWERED MODELS,                                                                                                  A - 50% COHb (Permanent Brain Damage – Death)
                             230-240 VAC (  ), 50-60 Hz, 7W:                      Please phone our Technical Department on 01452 714999
                            CO850Mi, CO850MBXi, CO850MRLi                         for details on how to get your replacement sensor fitted.            B - 45% COHb (Coma and Permanent Brain Damage)
   BSEN 50291:2000                IMPORTANT: PLEASE READ                           Warning: Do not attempt to open the unit or tamper
   Licence No. 57514           AND RETAIN THIS OWNERS MANUAL                                                                                           C - 40% COHb (Collapse)                                               Portable Gas or          Gas or Oil      Cigarette Smoke
                                                                                   with the internal circuitry as this may result in the risk                                                                                Paraffin Heater           Boiler
                                                                                   of electric shock and/or unit malfunction.                          D - 35% COHb (Vomiting)
       2502-A0041          When installing this alarm for use by others, please
                            leave this manual or a copy with the end user.
                                                                                                                                                       E - 30% COHb (Drowsy)
                                                                                                                                                                                                                        F. How can you maintain your alarm?
     WARNING: APPARATUS CONFORMING TO THIS                                         B. What to do if the alarm sounds                                   F - 25% COHb (Headache and Nausea)                               An alarm is useful only if it works. The following illustration
     STANDARD (BSEN50291:2001) MAY NOT PROTECT                                                                                                         G - 20% COHb (Headache)                                          explains proper maintenance.
     PEOPLE WHO ARE AT SPECIAL RISK FROM CARBON                                   If harmful levels of carbon monoxide are detected, your
     MONOXIDE EXPOSURE BY REASON OF AGE,                                          alarm will emit a series of four beeps followed by a short           H -15% COHb (Slight Headache)
     PREGNANCY OR MEDICAL CONDITION. IF IN ANY                                    pause; this will be accompanied by a flashing red light. This
     DOUBT, CONSULT YOUR MEDICAL PRACTITIONER.                                                                                                         I - 10% COHb (None)
                                                                                  pattern will be repeated until the alarm is successfully reset.                                                                                                                             Test the alarm by
                                                                                                                                                       J - 5% COHb (None)                                                                                                     pressing the
                                                                                  If the alarm is emitting a different pattern of beeps see                                                                                                                                   Test /Reset button
     Important: Not suitable as a smoke, fire, or combustible                     section A above.
     gas alarm. This device is not suitable for installation in a                                                                                      Many cases of reported CARBON MONOXIDE POISONING                                                                       once a week.
     hazardous location, as classified in BSEN 60079-10:1996.                     If the alarm sounds, respond as follows:                             indicate that while the victims are aware they are not well,
                                                                                                                                                       they become so disorientated they are unable to exit the
                                                                                  1. If anyone is experiencing the effects of carbon monoxide
   This Carbon Monoxide alarm shall not be seen as a                                                                                                   building or call for assistance. Young children and
                                                                                     poisoning–headache, dizziness, nausea or other ‘flu-
   substitute for proper servicing of fuel-burning appliances,                                                                                         household pets may be the first affected. Exposure during
                                                                                     like’ symptoms:–
   or sweeping of chimneys, or as a substitute for either a                                                                                            sleep is particularly dangerous because the victim usually                                                             Vacuum the
   smoke alarm or a combustible gas alarm.                                        2. Open the doors and windows to ventilate.                          does not awaken. For most people, mild symptoms                                                                        outside of the
                                                                                                                                                       generally will be felt after several hours of exposure to 100                                                          alarm including
                                                                                  3. Turn off any fuel-burning appliances where possible and                                                                                                                                  the air vent on the
                                                                                     stop using them.                                                  ppm of carbon monoxide. Higher levels will lead to more
     A. Audible and visual warnings                                                                                                                    severe symptoms or death.
                                                                                                                                                                                                                                                                              front and base.
                                                                                  4. Evacuate the property leaving the doors and windows
 Alarm sounder                                                                       open.
                                                                                  5. Ring your gas or other fuel supplier on their emergency
                                                                                                                                                       D. What is carbon monoxide and why
 •••• •••• ••••                    A repeating series of 4                                                                                                should you be concerned?
                                   beeps with red light –                            number. Record those numbers here:-
                                                                                                                                                       Carbon monoxide is a dangerous, poisonous gas. It is often
                                   FULL ALARM                                      Gas Supplier                                                        referred to as the Silent Killer because it has no odour or
 •••• •••• ••••                    A repeating series of 4                                                                                             taste and it can’t be seen. The presence of carbon monoxide
                                   beeps WITHOUT LIGHTS –                          Corgi Engineer                                                      inhibits the blood’s capacity to transport oxygen throughout
                                   An interconnected alarm is                                                                                          the body, which can eventually lead to brain damage. In any
                                                                                                                                                       enclosed space (home, office, recreational vehicle or boat)
                                   in FULL ALARM
                                                                                   Hospital/Doctor                                                     even a small accumulation of carbon monoxide can be
 •••          •••                  Three short beeps every                                                                                             dangerous.                                                       NOTE If a fault warning is shown after a manual or automatic
                                   60 seconds – REPLACE                           6. Do not re-enter the property until the alarm has stopped.                                                                          self test contact our helpline on 01452 712459
                                   SENSOR                                                                                                              E. What are the potential sources of
                                                                                  7. Get medical help immediately for anyone suffering the                                                                              Battery operated alarms and mains alarms with
 ••       ••                       Two short beeps every 60                          effects of carbon monoxide poisoning (headache,                      carbon monoxide?                                              9V PP3 style battery back up i.e. CO850MBXi
                                   seconds with yellow light –                       nausea), and advise that carbon monoxide poisoning is             Although many products of combustion can cause                   The battery is expected to last at least 12 months.
                                   FAULT                                             suspected.                                                        discomfort and adverse health effects, it is carbon monoxide
                                                                                  8. Do not use the fuel-burning appliances again until they           (CO) that presents the greatest threat to life. CO is produced   Changing the battery.
 •        •                        A single beep every minute
                                                                                     have been checked by an expert. In the case of gas                by the incomplete combustion of fossil fuels such as natural     On battery powered units or mains units with a replaceable
                                   with symbol on digital
                                                                                     appliances this must be a CORGI registered installer.             gas, propane, heating oil, paraffin, coal, charcoal, petrol or   battery backup the alarm will beep once every minute and
                                   display – LOW BATTERY                                                                                               wood. The incomplete combustion of fossil fuel can occur in      display a battery symbol on the digital display (if fitted).
                                                                                  9. If no symptoms exist, operate the Test/Reset button and
 •••• ••••                         Two sets of four beeps with                                                                                         any device that depends on burning for energy or heat such       If this happens change the battery as follows:-
                                                                                     immediately ventilate the home by opening the windows             as gas fires, central heating boilers, room heaters, water
                                   red Light – WHEN TESTED                           and doors.                                                                                                                         • WARNING: Battery replacement should only be done by a
                                   WITH TEST BUTTON                                                                                                    heaters, cookers or grills and in any petrol-powered vehicle
                                                                                                                                                                                                                          competent person.
                                                                                  10. The alarm can be silenced by pressing the Test/Reset             or engine (e.g. generator set or lawnmower). Tobacco smoke
 Digital display (Optional Extra)                                                     button.                                                          also adds CO to the air you breathe.                             • Turn off the electricity supply to the alarm.
 Alarms fitted with a digital display show the levels of CO                       What to do after resetting the alarm                                 When properly installed and maintained, your natural gas         • Remove it from the pattress or backplate by removing the
 measured by this alarm and indicate the amount of                                                                                                     boiler and hot water heater do not pollute your air space with     screws at the top and bottom of the alarm.
                                                                                  A full continuous alarm within six minutes after reset
 carboxyhaemaglobin (COHb) that may be present in the                             confirms ongoing presence of harmful levels of carbon                carbon monoxide. Natural gas is known as a ‘clean burning’       • Undo the screw on the battery door and remove the door
 bloodstream of anyone within its detection range.                                monoxide. If this occurs follow instructions 2 to 8 as per           fuel because under correct operating conditions the                and the battery from the alarm. (see below) Replace the
 By repeatedly pressing the Display button on the front of the                    above.                                                               combustion products are water vapour and carbon dioxide,           battery with a GP 1604A, Energiser 522, Duracell
 alarm you can change the information displayed to one of                                                                                              which are not toxic. Carbon dioxide (CO2) is also present in       MN1604 or MX1604. Place the new battery inside the
                                                                                  What to do after a carbon monoxide problem has                       the air we exhale and is necessary for plant life). The            battery bay and refit the door and screw removed above.
 the following:-
                                                                                  been corrected?                                                      products of combustion are vented from boilers and water
                              Shows CO in parts per                                                                                                    heaters to the outside by means of a flue, duct or chimney.      • Test the alarm for correct operation using the test facility
                                                                                  After a carbon monoxide problem has been corrected reset                                                                                whenever the battery is replaced. Do this before turning
                              million (ppm)
                                                                                  your alarm by pushing the Test/Reset button as per the               Correct operation of fuel-burning equipment requires two           on the main electricity supply.
                                                                                  following instructions.                                              key conditions. There must be:
                                 Shows peak level of                              Warning: This device will only alarm if carbon monoxide              • An adequate supply of air for complete combustion.
                                 CO (ppm) in past 12hrs                           is detected. If not responded to, the presence of carbon             • Proper venting of the products of combustion from the
                                                                                  monoxide can be fatal.                                                 boiler through the chimney, vent or duct to the outside.                                              Battery Access Door Screw

                                 Shows calculated levels of                       Caution: This alarm will only indicate the presence of               Typical Carbon Monoxide Problems
                                 CO Hb. Alarm will sound at                       carbon monoxide at the sensor. Carbon monoxide may be                1. Equipment problems, due to defects, poor maintenance,
                                 approximately 3.9%                               present in other areas.                                                 damaged or cracked heat exchangers
                                                                                  How to reset the alarm                                               2. Collapsed or blocked chimneys or flues, dislodged,
 Indicator lights                                                                                                                                         disconnected or damaged vents
                                                                                  The alarm will reset once the carbon monoxide has
                                                                                  dispersed. Should you wish to attempt to do a manual reset           3. Downdraught in chimneys or flues; this can also be
                                                                                  press the test/reset button. The unit will re-alarm if the levels       caused by very long or circuitous flue runs, improper
                                                                                                                                                                                                                                               Battery Access Door
                                                                                  of carbon monoxide are still hazardous. To reset after an               location of flue outlets or wind conditions
                                                        Yellow – Fault
                                                        Green – Power
                                                                                  alarm, press the Test/Reset.                                         4. Improper installation or operation of equipment, chimneys     G. How can you test the alarm?
                                                        Red – ALARM                                                                                       or vents                                                      A green power light indicates that power is supplied. (See
                                                                                                                                                       5. Short stays in rented accommodation (e.g. flats, holiday      previous section).To test the alarm (wait at least ten minutes
                                                                                                                                                          cottages etc)                                                 after installing it or after power failure/switch-off), press,
                                                                                                                                   Test/Reset Button                                                                    hold and then release the Test/Reset button. A flashing red
                                                                                                                                                       6. Air tightness of house envelope resulting in a lack of air    light will be accompanied by a repeating series of four
                                                                                                                                                          for the combustion process                                    beeps followed by a 5 second pause. Test weekly.
                                                                                                                                                       7. Inadequate exhaust of space heaters or fuel-burning
 The Green (power) Light – When the alarm is powered by                                                                                                   appliances
 the mains supply the green light will remain on all the time.                                                                                         8. Vent fans/chimneys competing for air supply
                                                                                                                                                                                                                        H. A Malfunctioning unit
 If your alarm is powered by battery (B) or the mains has                                                                                                                                                               The yellow light will either flash once every 60 secs (in
 failed and your alarm has a standby battery (MRL, MBX)                                                                                                                                                                 battery mode) or be on all the time if a fault occurs.
 then the green light will blink every minute.                                                                                                                                                                          This will be accompanied by two short beeps every 60 secs.
 The Red (Alarm) Light – This light will be on if the alarm                                                                                                                                                             This could occur if the sensor has been removed or
 is detecting carbon monoxide. It will be accompanied by a                                                                                                                                                              disconnected, or there has been an electronic failure. If this
happens contact our helpline.
                                                                                                                                     parts of the screw slots are uppermost.                        O. Guarantee Information
WARNING: If the green light is off (or not flashing every                                                                          Carefully offer up the alarm to the baseplate and push it into   Limited Guarantee
minute in battery mode) the alarm may be without power                                                                             place ensuring the clips fasten correctly.
and therefore will not indicate a fault condition.                                                                                                                                                  Your Dicon Alarm, excluding the battery in 850B and 850MBX
                                                                                                                                   To provide maximum protection, please allow one hour for         models, is warranted for six years from the date of purchase
                                                                                                                                   your alarm to fully initialize after power-up. However, your     against defect in material and workmanship. Units returned to
 Dicon Helpline. 01452 712459                                                                                                      alarm will provide protection for your premises immediately.     Dicon with proof of purchase.date during this period as a
                                                                                                                                   For mains powered models M, MBX, MRL                             result of such defects will be repaired, or replaced at Dicon’s
J. Tips for the Homeowner                                            CO                                                            This unit is designed for permanent connection to a 230-         option, without charge. This warranty only covers defects in
Energy Conservation and Indoor Air Quality                                                                                         240 VAC 50-60Hz supply. The maximum current draw is              material or workmanship in normal residential use and does
                                                                                                                                   45mA – select fuse accordingly.                                  not cover damage resulting from negligent handling, misuse
Two steps that homeowners take to conserve energy may                CO                                                                                                                             or lack of reasonable care.
adversely affect indoor air quality. Since air leakage can
                                                                                                                                    Warning: Wiring should be installed only by a qualified         YOUR ALARM IS NOT A SUBSTITUTE FOR PROPERTY,
account for as much as 40% of heat loss, houses are being
                                                                                                                                    electrician in accordance with the current                      DISABILITY OR OTHER INSURANCE OF ANY KIND.
made more airtight. Reduced air leakage will contribute to
                                                                                                                                    IEE Wiring Regulations for Electrical Installations             APPROPRIATE COVERAGE IS YOUR RESPONSIBILITY,
higher concentrations of air contaminants from indoor                CO
                                                                                                                                    (BS7671).                                                       CONSULT YOUR INSURANCE AGENT.
sources and can cause draught reversal in the central
heating boiler or fireplace chimney when the demand for air                                                                                                                                         This warranty does not affect a customer’s statutory rights in
by fireplaces, central heating boilers and exhaust fans                                                                             Important: The circuit used to power the alarm must be          any way.
exceed the air supplied by leakage area and supply ducts.                                                                           a 24 hour voltage circuit that cannot be turned off by a        In the event of a problem with your alarm or you have any
Converting from oil to gas, without taking steps to prevent
                                                                  L. Where should you install the alarm?                            wall switch. It is recommended that CO alarms be wired          questions concerning use and care of the product or
                                                                  Which room to put the alarm?                                      on a separate circuit (ie one with no other lights or           concerning service, please consult your owners manual.
chimney deterioration, will increase the risk of chimney
                                                                                                                                    appliances) to ensure maximum reliability of mains power        If you require further help or clarification, please write:
blockage, draught failure and the associated release of           Ideally, you should have an alarm in or near every room that      supply.
combustion products into the house. You should always use         has a fuel-burning appliance. However, if you have more                                                                           Dicon Safety Products (Europe) Ltd.
properly qualified CORGI registered gas installers.               than one appliance, but only one alarm, you should take the                                                                       .O.
                                                                                                                                                                                                    P Box 402
                                                                                                                                   1. ELECTRICITY MUST BE TURNED OFF AT THE
                                                                  following into consideration when deciding where best to                                                                          GLOUCESTER
                                                                                                                                      DISTRIBUTION BOARD BEFORE COMMENCING ANY
Dirt and Blockage                                                 put the alarm.                                                                                                                    GL2 9YB
                                                                                                                                      WORK IN ORDER TO PREVENT ELECTRICAL SHOCK OR
Never insulate or try to seal up a draught hood, wind cap or      • If there is a fuel-burning appliance in the room where you        EQUIPMENT DAMAGE.
exhaust vent on any gas appliance (central heating boiler,          sleep, you should put the alarm in that room.                  2. Select a suitable location in accordance with the
hot water heater, cooker, dryer or space heater). Keep area                                                                                                                                          PLEASE KEEP THIS MANUAL IN A SAFE PLACE
                                                                  • If there is a fuel-burning appliance in the room that you         guidance in section L of this manual and complying with
around appliances clean. Don’t store anything that could            use a lot. e.g. a sitting room, you should put it in that         the requirements set out above.
restrict air circulation close to equipment. If you have a gas                                                                                                                                              Please note that specifications may be subject to change.
                                                                    room.                                                          3. Remove CO alarm from pattress by removing the small
water heater, make sure that combustion air openings at the
bottom of the tank and the opening below the draft diverter       • If you live in a bed-sit put the alarm as far away from the       securing screws at the top and bottom of the alarm and
(on top of the tank next to the flue duct) remain unblocked. If     cooking appliances as possible, but near to the place             pulling the alarm away from the pattress.
you have a gas dryer, the exhaust duct must be vented to the        where you sleep.                                               4. Place pattress at chosen location with the connector
outside and have a hood at the end. Check that the exhaust        • If the fuel-burning appliance is in a room not normally           block uppermost. Mark and then drill holes for suitable
system is not blocked by lint or debris and that the flapper        used (e.g. a boiler room) put the alarm just outside the          fixings, corresponding to the slots in the base of the
in the hood moves freely.                                           room so that you will be able to hear the alarm more              pattress.
For all fuel-burning equipment, make sure that vent hoods           easily.                                                        5. Bring supply wires from mains into the pattress.
and pipes are not blocked by insulation, leaves or bird           If the alarm is in the same room as the appliance:-              N.B. The CO850 mains powered series are supplied
nests. If you have pets, make sure that there is no build up      It should be mounted on or close to the ceiling at a height      complete with a pattress within which wiring connections
of fur or hair around gas burners or aeration holes.              greater than that of any door or window. It should be at least   are made and does not therefore require a junction box. The
Using other equipment that consumes or                            300mm from any wall, light fitting or any other obstruction.     pattress is provided with knockouts in the base for entry
exhausts household air                                            If mounted on a wall it should be at least 150mm from the        from the back or an end port knockout for mini-trunking.
                                                                  ceiling. If mounted in a room with a sloped or gabled ceiling    6. Secure pattress to mounting surface using suitable
If you use exhaust fans, a fireplace or other fuel burning
                                                                  it should be at least I metre lower than the highest point of       fixings.
heaters or stoves:                                                the room as long as that is above doors and windows.
Run exhaust fans for just a minute or two. Prolonged use                                                                                                       White Blue
                                                                  If the alarm is in a room that is remote from the appliance,
could remove too much air, and it wastes heat.
                                                                  then the alarm should be in the breathing zone of the
If your appliance has a conventional flue, beware of running      occupants.
extraction fans when the gas appliance is on.

                                                                  • An alarm should be at least 1.8 metres (6 feet) from the

When your fireplace, coal or wood stove is operating, open          fuel-burning appliance.
a window and close off warm air registers in the room or
install a fresh air duct directly to the fireplace or stove so
that it won’t steal air from your central heating boiler.
                                                                  Do not put a CO alarm:                                                                                             E
                                                                  • Outside the building.                                                                             Brown
Confining or enclosing gas-fired equipment
                                                                  • In close proximity to a vehicle exhaust pipe; this will
If you have partitioned off your central heating boiler and         damage the alarm.
water heater, you may need additional ventilation.                                                                                 7. Connect the incoming live wire to the terminal marked L,
                                                                  • In or below a cupboard.
Danger Signs                                                                                                                          the incoming neutral wire to the terminal marked N and
                                                                  • In a damp or humid area.                                          the incoming green and yellow earth wire into the unused
Stuffy, stale or smelly air, back draughts and soot from a        • Near paint thinners, adhesives, polishes, aerosols, or            terminal marked E.
fireplace or boiler chimney usually means your home needs           household cleaning products. Other substances may also
more air for proper combustion and healthy living.                                                                                 This alarm can be interlinked to 17 other CO alarms (18 in
                                                                    affect the reliability of the unit.                            all). To interlink to another alarm connect the incoming wire
For gas-fired equipment, mostly yellow (rather than clear         • Directly above a sink or cooker.                               used for the interlink connection to the terminal marked I
blue) burner flames, a pilot light that keeps going out, or a                                                                      The incoming wire must be rated the same as the incoming
smell of gas indicate trouble. Turn off the equipment and         • Next to a door window or extractor fan or anywhere that it
                                                                    would be affected by draughts.                                 live and neutral.
contact the gas emergency service, number in the telephone
directory, under ‘Gas’.                                           • In exhaust streams from gas engines, vents, flues or           NOTE: NO connection should be made to the mains supply
                                                                    chimneys.                                                      earth terminal. Simply secure the incoming earth wire at
                                                                                                                                   terminal marked E to prevent contact with live neutral or
K. Additional Safety Tips                                         • Where it would be obstructed by curtains or furniture.
                                                                                                                                   interlink wires.
Dicon CO alarms are manufactured to the highest standards         • In an area where the temperature could drop below -10ºC
                                                                                                                                   8. Carefully offer the alarm up to the pattress ensuring the
to ensure faultless operation and long life.                        or rise to above 40ºC.
                                                                                                                                      connection pins locate into the sockets in the pattress.
The manufacturers do, however, recommend that no CO               • Where humidity is less than 30% R.H. or more than 90%
alarm should be used for more than twelve years, in order to                                                                       9. Secure alarm to pattress using securing screws (see
minimise the chance of a fault occurring. This device                                                                                 point 3).
requires no special disposal procedures and may be                • Where dirt or dust could block the sensor and stop it
                                                                                                                                   10. Turn electricity supply back on.
disposed of in household refuse. Have your fuel-burning             working.
                                                                                                                                   11. The alarm will start an automatic self-test that will last
equipment checked periodically for safety and efficiency by       • Where it could be easily knocked or damaged, or where it
                                                                                                                                       up to 25 seconds. This will include 2 series of 4 beeps
a qualified service engineer. If you are adding a wood or           could be accidentally turned off or removed.
                                                                                                                                       with red light followed by a single flash of the yellow
coal burning stove to a home, make sure that the stove is
                                                                                                                                       and green lights.
properly installed and vented.
Check with the Building Inspectors Department of your local       M. How should you install the alarm?                             12. If the alarm is interconnected to other CO alarms,
                                                                                                                                       pressing the test button on one alarm will cause the
council and always use a qualified (CORGI registered) gas         CO850B, CO850BS, CO850MBX (Including those with
                                                                                                                                       others to sound within a few seconds. The red light will
installer.                                                        further suffixes D and i)
                                                                                                                                       only show on the originating alarm.
If you have already installed a wood or coal stove without        When inserting the battery for the first time remove the
building regulation approval, consult your local Building         Battery Access Door (see section F) by sliding towards the       Warning: This device should remain permanently
Control Officer. Some ‘do-it-yourselfers’ have unknowingly        side of the alarm. Remove the battery access door screw          installed. It should not be used on an intermittent
                                                                                                                                                                                                          DICON is a leader in the development and
created dangerous conditions.                                     from the body of the alarm shown in section F. Remove the        basis, nor as a portable detector for the spillage of
                                                                                                                                                                                                          manufacture of Carbon Monoxide, Natural Gas,
Do not expose yourself to carbon monoxide through                 battery from the compartment and connect it to the flying        combustion products from fuel-burning appliances
                                                                                                                                                                                                          Propane Gas, Smoke and Fire Alarms. Through
carelessness. Never operate a petrol engine in a confined or      lead found in the compartment. ONLY USE APPROVED                 or chimneys.
                                                                                                                                                                                                          the distribution of indoor air quality
enclosed space such as a garage or tool shed. Never use a         BATTERIES, either Duracell MN1604, MX1604, GP 1604A
                                                                                                                                                                                                          management products, DICON is committed to
                                                                  or Energiser 522. Carefully insert the battery back into its
paraffin stove or charcoal grill in a confined space such as a
                                                                  compartment, refit the access door and secure with the
                                                                                                                                   N. Technical information                                               the establishment and maintenance of a safe
closed garage or caravan. On brick chimneys inspect and                                                                                                                                                   and healthy home and work environment.
                                                                  screw removed above. When changing the battery in future         Your alarm utilizes a proprietary Electronic Sensing
clean-out regularly to ensure that the chimney is free and
                                                                  remove the battery access door screw before opening the          Technology that permits the unit to vary the exposure time             Call our Dicon Safety Products Helpline
clear of debris.
                                                                  door. Test the alarm in accordance with section G.               before the alarm sounds based on carbon monoxide                       01452 712459
Regardless of the fuel your boiler, fireplace or stove uses,                                                                       concentrations.
your chimney should be inspected from time to time by a           Mounting the battery operated alarms CO850B,                                                                                            Important:
                                                                  CO850BS (Including those with further suffixes                   The carbon monoxide concentrations and time standards for
competent person. Any ‘Efficiency’ devices must always be                                                                                                                                                 Please read and retain this owner's manual.
                                                                  D and i).                                                        the alarms are as follows:
installed by a CORGI registered installer. When using paints,                                                                                                                                             When installing this alarm for use by others,
household cleaning supplies or similar materials, be sure         (See section L for choosing location)                                                                                                   please leave this manual or a copy with the end
                                                                                                                                        Carbon                No alarm            Will alarm
that you’re using them in a well-ventilated area. Following       If you are using the baseplate to mount the alarm,                   Monoxide                before              before                 user and ensure they are fully conversant with
sensible maintenance and safety procedures in the home            1) remove it from the back of the alarm by using a small            Concentration                                                       its siting, operation and maintenance.
will give you fuel savings without endangering your health.          screwdriver to lift the retaining clips away from the back
                                                                                                                                         50 ppm             60 minutes           90 minutes
                                                                     of the alarm.
                                                                                                                                                                                                          DICON Safety Products (Europe) Ltd
                                                                  2) Secure the baseplate to the chosen surface using the               100 ppm             10 minutes           40 minutes
                                                                                                                                                                                                          PO Box 402 Gloucester GL2 9YB
                                                                     fixings supplied being careful to ensure the narrowest             300 ppm                   –               3 minutes
                                                                                                                                                                                                          Fax: 01452 713103

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