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Do not cover or obstruct visual alarm LED. Doing so may adversely affect product performance and
result in sickness or
death.
TROUBLE INDICATOR
Internal failure of the CM-16A will cause an open circuit in the normally closed (NC) Trouble Relay to provide for actuation of
the control panel circuits. The status LED will flash AMBER. See ERRORS section. The CM-16A microprocessor continuously
monitors various detector parameters. Failure of the CM-16A’s internal power supply or a lack of power to the detector will
result in the status light remaining OFF (not illuminated). In this case, the most common cause of detector trouble would be a
break in the wiring between the control panel and the CM-16A.
ERRORS
The CM-16A continuously monitors various internal operating parameters. If a problem is found, the unit will switch to Trouble
mode. See TROUBLE INDICATOR section. To reset the unit for normal operation, press the TEST/RESET switch, or remove
power to the unit, wait a few seconds, then re-apply unit power. If this problem persists, your detector requires repair; contact
the alarm panel installer or 3M™ Macurco™ Tech Support for advice. If repair is required, return the unit to manufacturer to
comply with warranty.
MAINTENANCE
Do not disassemble unit or attempt to repair or modify any component of this detector. This detector contains no user
serviceable parts, and substitution of components may adversely affect product performance and
result in sickness
or death.
The CM-16A has a long life solid state sensor. The CM-16A will go into a Trouble Fault when the sensor has expired. All
maintenance and repair of products manufactured by 3M™ Macurco™ are to be performed at the 3M Macurco Service Center.
3M™ Macurco™ does not sanction any third-party repair facilities.
TESTING
The CM-16A should be tested monthly by pushing the TEST/RESET switch; see TEST/RESET switch. Normally this will be the
only test required for the CM-16A and is the recommended way to test the unit or units after installation. All CM-16A units are
factory calibrated and 100% tested for proper operation. The unit also has the ability to automatically self test and does so
every 2 1/2 minute cycle. If the unit detects an improper voltage or inoperable component it will default into Trouble mode. See
TROUBLE INDICATOR section. Check that the CM-16A status indicator light is illuminated (GREEN) continuously. If not, do not
proceed with the tests. Though there is no field calibration procedure for this unit, there is an optional field test procedure
.
CLEANING
The CM-16A should be cleaned using the soft brush attachment of your vacuum cleaner. The CM-16A should be tested after
cleaning to ensure the unit is operating normally.
SENSOR POISONS
The gas sensor in the detector is designed with extreme sensitivity to the environment. As a result, the CO sensor may be
damaged if it is exposed to a direct spray from aerosols such as paints, silicone vapors, etc., or to a high density of corrosive
gases such as hydrogen sulfide or sulfur dioxide for an extended period of time. The sensor may react to chemicals such as
ammoniated cleaning agents, volatile solvents and hydrogen gas. In sufficient concentration, these chemicals may cause a
false alarm.
CAUTION:
This detector will only indicate the presence of carbon monoxide gas at the sensor. Carbon monoxide gas may
be present in other areas. Accommodation spaces should be well ventilated when household cleaning supplies or similar
contaminants are used.
3M FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY
3M™ Macurco™ warrants the CM-16A gas detector will be free from defective materials and workmanship for a period of
two (2) years from date of manufacture (indicated on the inside cover of the CM-16A), provided it is maintained and used in
accordance with 3M™ Macurco™ instructions and/or recommendations. If any component becomes defective during the
warranty period, it will be replaced or repaired free of charge, if the unit is returned in accordance with the instructions below.
This warranty does not apply to units that have been altered or had repair attempted, or that have been subjected to abuse,
accidental or otherwise. The above warranty is in lieu of all other express warranties, obligations or liabilities. THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO A PERIOD OF FIVE (5) YEARS
FROM THE PURCHASE DATE. 3M™ Macurco™ shall not be liable for any incidental or consequential damages for breach
of this or any other warranty, express or implied, arising out of or related to the use of said gas detector. Manufacturer or its
agent’s liability shall be limited to replacement or repair as set forth above. Buyer’s sole and exclusive remedies are return of
the goods and repayment of the price, or repair and replacement of non-conforming goods or parts.
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WARNING
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