MN220 Series
Contents
1. MN220 Series Dh 2 Wire Smoke Detectors pR INSTRUCTIONS FOR INSTALLATION AND USE a READ THIS INSTRUCTION SHEET THOROUGHLY BEFORE INSTALLING AND USING YOUR MERIDIAN SMOKE DETECTOR Features e Advanced 90 photoelectric detection pattern and specially designed smoke chambers for superior detection and dust resistance Unique high signal to noise ratio and superior RFI immunity to prevent false alarms Excellent smoke access provides reliable detection for all smoke flow directions and velocities Solid state LED red Indicator Light e Optional auxiliary relay Form C 57 C 135 F fixed temperature heat sensor option Magnet activated sensitivity test switch Attractive styling for any decor ULC listed S529 Protected under Canadian patent No 1452296 Other patents pending Models MN220 2 Wire Detector MN220T 2 Wire Detector and Fixed Temp 57 C Sensor MN220R 2 Wire Detector and Auxiliary Form C Relay MN220RT 2 Wire Detector and Auxiliary Form C Relay and Fixed Temp 57 C Sensor Introduction The DSC Meridian MN220 Series smoke detectors are two wire smoke detectors intended for open area protection They are suited for commercial institutional and residential fire alarm systems The DSC Meridian photoelectric smoke detector incorporates many advanced design features to provide years of reliable operation It is important to follow the Installation and operation instructions on this sheet to ensure that the2. 2A at 30Vbc VAC Temp SONSOM sociis kenn nie epena ei 57 C fixed Smoke Sensitivity 2 5 ft obscuration 0 5 ft ULC Operating Environment 0 C 37 8 C 32 F 100 F E E A E A TA 5 95 RH non condensing Field TeSt sesos Magnet activated switch and or E NT Gemini 501 Smoke Alarm Analyser Gemini Scientific 1122B Aster Ave Sunnyvale CA 94086 Tel 408 554 0310 2W SMOKE DETECTOR VI CURVE 30 0 usin ieee eer as 24 0 21 0 18 0 15 0 9 0 Detector Voltage VDC O 10 20 30 40 50 60 Alarm Current MA MN220 MN220T MN220R MN220RT Dimensions Test Button pamm and SS 5 13 Alam 131 mm Indicator Mounting the Unit Turn eee to lock Mounting Holes A lt S THIS SIDE OUT O O Locking Align the indent circle on the mounting plate with this hole and turn clockwise to secure Indent Circle Pull power wires through this opening M aa aaraa Mounting Plate The Meridian Smoke Detector mounts to a standard 4 octagonal electrical box 12 to 24Vpc or Full Wave Rectified power must be supplied from a ULC listed alarm control unit Wiring should be in accordance with the appropriate national electrical code and applicable local codes Remove the mounting plate from the case by pushing the locking tab and turning the mounting plate counter clockwise Atta
3. fire and the time it becomes deadly Because of this it is very important that a family escape plan be developed and rehearsed 1 Every family member should participate in developing the escape plan 2 Study the possible escape routes from each location within the house Since many fires occur at night special attention should be given to the escape routes from sleeping quarters 3 It is essential that escape from a bedroom be possible without opening the interior door Consider the following when making your escape plans e Make sure that doors and windows that open to the outside are easily opened Ensure that they are not painted shut and that their locking mechanisms operate smoothly If opening the exit or using the exit is too difficult for children the elderly or handicapped plans for rescue should be developed This includes making sure that those who are to perform the rescue can promptly hear the fire warning signal If the exit is above the ground level an approved fire ladder or rope should be provided as well as training in its use e Exits onthe ground level should be kept clear Be sure to remove snow from exterior patio doors in winter outdoor furniture or equipment should not block exits The family should have a predetermined assembly point where everyone can be accounted for for example across the street or at a neighbour s house Once everyone is out of the house call the Fire Department e Ag
4. the sensor an alarm is activated On alarm the Alarm Indicator Light will come ON and the Detector will send an alarm signal to the control panel The Auxiliary Relay if equipped is also activated on alarm When the smoke clears from the chamber the detector will remain latched in the alarm state until reset by turning off the power supply from the control panel Units with the temperature sensor T option will activate its alarm indicator light and auxiliary relay and initiate an alarm at the control panel also When the high heat condition returns to normal the detector will remain latched in the alarm state until reset from the control panel Resetting is achieved by 2 seconds of power down Alarm Indications Condition Alarm LED Aux Relay No smoke or heat Pulse every Deactivated 40s Smoke or heat ON steady Activated Sensitivity test ON Activated functioning normally Steady Sensitivity test Pulse every Deactivated insufficient sensitivity 40s No smoke or heat ON Activated but latched in alarm steady Limitations of Smoke Detectors While the Meridian smoke detector has been designed for reliability it is important to know that all smoke detectors have limitations e Smoke detectors will not work without power Devices powered from a control panel will not function if the control panel s AC and battery backup power supplies both fail e Smoke detectors can only generate an alarm when smoke gets inside
5. the smoke chamber anything that prevents smoke from entering the smoke chamber may prevent or delay an alarm Refer to the Guidelines for Locating Smoke Detectors on this Instruction Sheet it is important that smoke detectors be located on at least every floor of the premises preferably in every room It is also important to avoid obstructions such as closed doors that may prevent smoke from reaching the unit A smoke detector will not detect a fire in the walls in the chimney or on the roof of a building until smoke enters the smoke chamber Smoke detectors have certain obvious limitations they may not provide protection for someone smoking in bed for children playing with matches or for sudden and violent explosions A smoke detector is a single part of overall fire safety precautions the smoke detector should never be seen as a substitute for a complete fire safety program e Guidelines for Locating Smoke Detectors On smooth ceilings detectors may be spaced 9 1m 30 feet apart as a guide Other spacings may be required depending on ceiling height air movement the presence of joists uninsulated ceilings etc Consult CAN ULC S553 M86 or other appropriate national standards for installation recommendations Do not locate smoke detectors at the top of peaked or gabled ceilings the dead air space in these locations may prevent the unit from detecting smoke Avoid areas with turbulent air flow such as near doors fans or w
6. unit will function properly even the best designed smoke detector willbe rendered useless if it is not connected or located properly It is very important that you understand how to test and maintain your system Refer to the nstruction or User Manual for your alarm system and familiarise yourself with how the fire alarm functions of your system operate Be sure to test your system regularly following the test procedures described in your manual If you should ever have problems operating or testing your system and especially if there are problems with the fire alarm functions contact your smoke detector installer or dealer immediately for service While smoke detectors and alarm systems are designed to warn you of potentially dangerous situations no system can prevent emergencies An alarm system is not a substitute for life and property insurance you should always maintain appropriate insurance coverage How the Smoke Detector Works m a a E Normally light pulses in the Smoke in the Smoke Chamber Smoke Chamber do not reach deflects light into the light sensor the light sensor triggering an alarm As shown in the illustration a light source is directed across the smoke chamber and is not normally reflected into the sensing element When smoke enters the chamber the light beam is scattered by the smoke and is reflected into the sensor When enough light is detected by
7. anel should indicate a fire alarm When the magnet is removed the Alarm light and auxiliary relay will remain ON Turn off the voltage supply from the control panel to the detector for two seconds to reset the detector to normal If the smoke detector does not function properly call your smoke detector installer or dealer for service Smoke sensitivity may be measured in a correlated CAN ULC S529 M87 smoke box DSC will conduct this test for a nominal charge If a returned unit is found outside of its marked sensitivity range DSC will clean and restore the unit s sensitivity to its marked range Smoke sensitivity of installed detectors can be measured without removal with the Gemini Model 501 Aerosol Smoke Detector Analyzer Follow the instructions supplied with the instrument Start with the sensitivity corresponding to the lowest marked detector sensitivity no alarm should be indicated Reset with the highest sensitivity setting an alarm should then be indicated These results indicate that the unit is within its marked sensitivity range Other settings can be tried to bracket the detector s sensitivity to a narrower sensitivity range such as may be important during annual tests to quantify any change over time Owner s Maintenance Instructions The Meridian smoke detector is designed to require a minimum of maintenance If the case becomes dusty wipe the case gently with a soft dry cloth Ifthe case is greasy wipe the case gent
8. ch the mounting plate to the electrical box see diagram above for orientation Wiring Refer to the wiring diagrams on this installation sheet and those provided in the installation manual of the alarm control panel being used with the unit Before connecting the unit prepare the wires from the electrical box for connection the wires should not be frayed or bent CAUTION If the power connections are reversed the unit will not operate The unit is protected against damage from incorrect wiring When wiring is completed inspect the wiring and correct any errors before applying power to the unit When the wiring has been thoroughly reviewed neatly insert the wires into the electrical box and secure the unit to the mounting plate ue a a 286 SS ee SS MN220 MN220T MN220R MN220RT Wiring Bottom View End of Line Device Alanis 7 4 f J og J 2 86 aA EEE a A 4 Sg Pa AUX AUX RLY RLY 2 Wire Detector System Wiring Dust Cover The dust cover is intended to protect the unit from dust and dirt entry only while the unit is not in service CAUTION The smoke detector will not function with the dust cover in place Installation Testing When all connections are completed apply power to the system as described inthe control panel s installation
9. indows Rapid air movement around the detector may prevent smoke from entering the unit Do not locate detectors in areas of high humidity Do not locate detectors in areas where the temperature rises above 38 C 100 F or falls below 5 C 41 F Family Room Bedroom Bedroom C a Bedroom aom Living Room g Bedroom Dining Room 0 0 Bedroom Bedroom fo Living Dining Room Pal Room Basement Ceiling Moi m ve Acceptable 0 1m here Z Max NEV R HERE e e e Bedroom Hall Bedroom Pauca R tion Ri 5 ecreation Room Basement oO Smoke detectors for better protection Smoke detectors for minimum protection Aas 0 3m SPLIT LEVEL Max ARRANGEMENT Top of detector acceptable here NOTE Measurements shown are to the closest edge of the detector Wall Testing Your Smoke Detector Bee dna to keai Never use burning or smouldering materials to test a smoke detector Also do not use high pressure aerosols to test smoke detectors The use of burning materials or high pressure aerosols can give misleading and meaningless results Test the detector for minimum sensitivity by activating the test feature To test the unit hold the test magnet against the case as shown below The alarm indicator light will come ON the auxiliary relay if equipped will be activated and the alarm control p
10. ly with a soft cloth slightly dampened with soapy water Never disassemble the smoke detector there are no user serviceable parts inside the unit Never paint the unit as paint may prevent smoke from entering the unit If you are planning renovations or repainting contact your Installer and ask that the unit be temporarily removed until work is complete If the unit is located in an area where it is exposed to high levels of dust or insects and is found to cause false alarms it may require service contact your smoke detector installer or dealer Fire Safety In The Home Most fires occur in the home and to minimize this danger it is recommended that a household fire safety audit be conducted and a family escape plan be developed Household Fire Safety Audit 1 Are all electrical appliances and outlets in a safe condition Check for frayed cords overloaded lighting circuits etc If you are uncertain about the condition of your electrical appliances or household service have a professional evaluation 2 Are all flammable liquids stored safely in closed containers in a cool well ventilated area Cleaning with flammable liquids should be avoided 3 Are hazardous materials such as matches out of the reach of children 4 Are furnaces and wood burning appliances properly installed clean and in good working order Ifin doubt have aprofessional evaluation Family Escape Planning There is often very little time between the detection of a
11. manual If all connections are correct there should be no alarm from any of the smoke detectors If an alarm occurs ensure that there is not an actual alarm condition If there is no actual alarm remove power from the system and check all smoke detectors for correct wiring If no alarm occurs test each smoke detector by holding the test magnet against the case near the alarm indicator Refer to the illustration in the Testing Your Smoke Detector section of these instructions When the magnetis in place an alarm willbe activated the alarm indicator light will come ON the auxiliary relay will be activated and the alarm control panel will indicate a fire alarm When the magnet is removed the detector will remain latched in the alarm condition To reset the detector remove the power supplied by the alarm control panel Installer s Maintenance Instructions Normally the Meridian smoke detector will not require maintenance If the unit is mounted in a high dust environment the inlet areas of the case may be vacuumed with a soft brush attachment Be sure to inform the user and their monitoring station when maintenance of any sort is performed on the smoke detector or any part of the alarm control system Always test smoke detectors after maintenance If a smoke detector continues to generate nuisance alarms even after vacuuming return the unit to DSC for service Contact DSC at the address and number below to obtain a return authorisatio
12. n number before returning the unit Installer s Responsibility to the User It is the Installer s responsibility to thoroughly instruct the end user of the system on the operation testing and maintenance of their system The Installer should fully explain and demonstrate all functions of the alarm control system and any equipment such as smoke detectors connected to it The user should be provided with all instruction sheets and manuals for their system and any components connected to it Complete and thorough instruction for the user is essential to ensure they will obtain the greatest benefit from their system Providing the user with complete operational information will also benefit the Installer through a reduction in service calls for nuisance alarms Limited Warranty Digital Security Controls Ltd warrants that for a period of twelve months from the date of purchase the product shall be free of defects in materials and workmanship under normal use and that in fulfilment of any breach of such warranty Digital Security Controls Ltd shall at its option repair or replace the defective equipment upon return of the equipment to its repair depot This warranty applies only to defects in parts and workmanship and not to damage incurred in shipping or handling or damage due to causes beyond the control of Digital Security Controls Ltd such as lightning excessive voltage mechanical shock water damage or damage arising out of abuse al
13. ood plan emphasizes quick escape Do not investigate first or attemptto fight the fire and do not attemptto rescue belongings or valuables as this takes up time Once outside do not re enter the house wait for the Fire Department e Write the plan down and rehearse frequently so that should an emergency arise everyone will know what to do Revise the plan as conditions change for example when there are more or fewer family members in the home or if there are changes to the house Make sure your fire warning system is operational by conducting weekly tests If you are unsure about system operation contact your Smoke Detector Installer or Dealer e It is recommended that you contact your local fire department and request further information on home fire safety and escape planning If available have your local fire prevention officer conduct an in house fire safety inspection Installation Instructions Specifications Nominal Operating Voltage 00 12 24Vpc or VFWR Maximum Operating Voltage Range 10 30Vbc or E E E E E E E E 10 26 4VFWR Standby Current 12V 24V MN220 MN220T MN220R MN220RT Electrical Compatibility DSC Model MN220 Detectors are system fire detectors When used in 2 wire operation the detectors and controls must have compatability listing with Underwriters Laboratories Auxiliary Relay Rating Resistive Form C Relay s cccvcc tasteless andes odes ieetees les
14. safety hazards such as smoking in bed violent explosions escaping gas improper storage of flammable materials overloaded electrical circuits children playing with matches or arson Even if the smoke detector operates as intended there may be circumstances when there is insufficient warning to allow all occupants to escape in time to avoid injury or death Warning Digital Security Controls Ltd recommends that the entire system be completely tested on a regular basis However despite frequent testing and due to but not limited to criminal tampering or electrical disruption it is possible for this product to fail to perform as expected Important Information Changes or modifications not expressly approved by Digital Security Controls Ltd could void the user s authority to operate this equipment bm a a lt Security Products For more information and technical assistance 2000 Digital Security Controls Ltd Toronto Canada Tech Line 1 800 387 3630 e www dscgrp com Printed in Canada 29001721 R003
15. teration or improper application of the equipment The foregoing warranty shall apply only to the original buyer and is and shall be in lieu of any and all other warranties whether expressed or implied and of all other obligations or liabilities on the part of Digital Security Controls Ltd Digital Security Controls Ltd neither assumes nor authorizes any other person purporting to act on its behalf to modify or to change this warranty nor to assume for it any other warranty or liability concerning this product In no event shall Digital Security Controls Ltd be liable for any direct indirect or consequential damages loss of anticipated profits loss of time or any other losses incurred by the buyer in connection with the purchase installation or operation or failure of this product Smoke detectors that are a part of this system may not properly alert occupants of a fire for a number of reasons some of which follow The smoke detectors may have been improperly installed or positioned Smoke may not be able to reach the smoke detectors such as when the fire is in a chimney walls or roofs or on the other side of closed doors Smoke detectors may not detect smoke from fires on another level of the residence or building Every fire is different in the amount of smoke produced and the rate of burning Smoke detectors cannot sense all types of fires equally well Smoke detectors may not provide timely warning of fires caused by carelessness or
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