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CO Sentinel Carbon Monoxide Alarm 
 

Should a very high level of carbon monoxide exist, the CO Sentinel will alarm in a few 
minutes.  However, if small quantities of CO are present or high levels are short-lived, 
the microcontroller will accumulate the information and determine when an alarm level 
has been reached.  This feature eliminates nuisance alarms.  For example, in a boat it is 
possible to see high levels of CO for a very short time such as when docking or 
maneuvering.  The CO Sentinel takes this all under consideration by totaling the quantity 
of CO detected over a period of time. 
 
The CO Sentinel is programmed to alarm at a COHb level of 10%.  SEE TABLE 2. 
 

Features of the CO Sentinel (CMD-4M, CMD-4MR) 

The CO Sentinel is designed to meet applicable marine standards.  The CO Sentinel is 
listed to meet UL 2034, marine requirements. 
 
The CO Sentinel is designed to operate from a 12VDC source.  For operation from other 
voltage sources, contact the engineering department of Fireboy-Xintex. 
 
The CO Sentinel conducts a self-diagnosis of critical components every 10 seconds.  
Should a major component fail, the CO Sentinel will enter a fault mode.  Both audible 
and visual warning indicators are activated.  
 
The CO Sentinel circuit board is sealed against moisture and corrosion to withstand the 
harshest environments and ensure durability. 
 
A re-certification and warranty renewal program is offered by the factory for your 
assurance of a properly operating unit.  It is highly recommended that the units are sent 
in on an annual basis for re-certification. 
 
The CO Sentinel is designed to tell you when your power source has dropped to a level 
insufficient for proper operation.  The red light will come on accompanied with an 
intermittent horn beep.  Restore the power to 12V and the unit will return to normal 
operation. 
 

Features of the CO Sentinel Deluxe (CMD-4M-RLY, CMD-4MR-RLY) 

The deluxe model is designed to interconnect with other deluxe models.  If the unit 
senses CO at an alarm level, it will communicate with other interconnected units and 
send them into alarm.  The unit that senses CO will have a distinct LED pattern 
compared to the interconnected units.  The CO Sentinel Deluxe is designed to connect 
up to a maximum of six interconnected units. 
 
The deluxe model is also designed with relay outputs.  The relay connection is rated at 
12VDC,1A max and can be used to shutdown a generator or other possible carbon 
monoxide source, or trigger a remote horn or alarm for example. 

Содержание CMD-4M

Страница 1: ... jurisdiction for the particular application in which the product is being used Electrical wiring shall be in accordance with applicable codes Improper wiring may render the unit inoperable damage components or cause a fire and will void all warranties This carbon monoxide alarm is designed to detect carbon monoxide gas from ANY source of combustion It is NOT designed to detect smoke fire or any o...

Страница 2: ...h 3 Carbon Monoxide CO The Silent Killer 3 Where Must We Guard Against Carbon Monoxide 5 Boat Hazards 5 The CO Sentinel How it Works 5 Features of the CO Sentinel 6 Pleasure Boat and Yacht Installation 7 Installing the CO Sentinel 8 Wiring Instructions 9 Operation of the CO Sentinel 9 Take Action When the CO Sentinel Alarms 11 Nuisance Alarms 12 Limitations 12 Specifications 13 Re Certification 13...

Страница 3: ...s not designed to comply with Occupational Safety and Health Administration OSHA commercial or industrial standards Any person with medical problems may consider using warning devices that provide audible and visual signals for carbon monoxide concentrations less than 30 PPM Carbon Monoxide CO The Silent Killer A by product of combustion carbon monoxide is invisible tasteless odorless and is produ...

Страница 4: ... gusts of wind Heavy air in the vent pipes cold humid air with extended periods between cycles ii Negative pressure differential resulting from the use of exhaust fans iii Simultaneous operation of several fuel burning appliances competing for limited internal air iv Vent pipe connections vibrating loose from clothes dryers furnaces or water heaters v Obstructions in or unconventional vent pipe de...

Страница 5: ...ay Boat Hazards Boats that are underway should close all aft portholes and open a forward hatch which may lend to pressurize the living spaces within the boat As in RV s no sleeping particularly in aft cabins should be permitted while underway Occupants of the bridge should also maintain proper ventilation by opening a forward window or windshield to drive station wagon effect fumes away from the ...

Страница 6: ...t mode Both audible and visual warning indicators are activated The CO Sentinel circuit board is sealed against moisture and corrosion to withstand the harshest environments and ensure durability A re certification and warranty renewal program is offered by the factory for your assurance of a properly operating unit It is highly recommended that the units are sent in on an annual basis for re cert...

Страница 7: ...ye level height for convenient monitoring and service Ordinary thermostat height is adequate Ceiling installation is also allowed but care must be taken to avoid the areas listed under Where NOT to install your CO Sentinel Where NOT to install your CO Sentinel DO NOT install a CO Sentinel near a hatch or porthole through which seawater could be spilled on the device DO NOT install in locations whe...

Страница 8: ... screws Replace the circuit board and replace the connector s on the circuit board Snap the cover in place and installation is complete After installation is complete attach one of the enclosed Warning stickers to the wall next to the alarm The phone numbers of emergency services and qualified technicians should be added to the stickers CO Sentinel Carbon Monoxide Alarm TO REMOVE CIRCUIT BOARD FRO...

Страница 9: ...ose outlined above please contact the engineering department of FIREBOY XINTEX for application and suitability information Wiring for CMD 4M R RLY Relay Interconnect Version Interconnect wiring To interconnect multiple units the yellow and brown wires 4 wire harness need to be tied in parallel see below In this mode of operation only the unit detecting CO will go into a true alarm and actuate its ...

Страница 10: ...10 Figure 4 CMD 4M R RLY Wiring Schematic ...

Страница 11: ...uences and operation Maintenance Unit should be cleaned weekly without the use of solvents Cleaning solvents and oils can cause the alarm to stop functioning Test the alarm if it has come in contact with any cleaning solvents or any condition that may cause the alarm to stop working After pro longed storage the CO Sentinel may require up to 72 hours of continuous operation to reach optimal sensing...

Страница 12: ...fter working with any chemicals make sure enough fresh air ventilation is available Limitations This carbon monoxide alarm is designed to detect carbon monoxide gas from ANY source of combustion It is NOT designed to detect smoke fire or any other gas The CO Sentinel will not detect carbon monoxide that is not in the vicinity of the alarm Carbon monoxide in other rooms or areas will not be detecte...

Страница 13: ...es complete testing of circuitry and sensor Repairs re calibration or sensor replacement are included In addition you will receive an additional 12 month limited warranty This offer does not include replacement or repair of units that have been damaged through misuse carelessness misapplication altered or otherwise been destroyed as a result of fire collision or sinking Should the returned CO Sent...

Страница 14: ...y Fireboy Xintex Inc b the product has not been repaired or altered by anyone other than Fireboy Xintex Inc c the serial number has not been removed defaced or otherwise changed d the product is determined to contain defective materials or workmanship and e use of the product is discontinued upon discovery of defective materials or workmanship and Fireboy Xintex Inc is notified immediately ANY WAR...

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