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Bosch Building Technologies

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    How do to test the D380

    TEST/RESET SWITCH
    The switch on the front of the D380, CM-15/15A labeled “PUSH HERE TO TEST OR RESET” performs three functions.

    1.) During normal operation, a short press of the switch (less than 5 seconds long) will place the unit into self-test mode with no alarm relay activation. The status light will turn red for 5 seconds, and then it will alternate slowly between green and amber while the self-test executes. The controlling software simulates a 3000 ppm CO environment and causes the unit to alarm after approximately one minute has elapsed. When this happens, the status light turns red, and the CM-15A buzzer will sound two complete alarm cycles. The unit will then return to normal operation.

    2.) During normal operation, a long press of the switch (about 6 seconds long) will place the unit into self-test mode with alarm relay activation. Pressing and holding the switch will cause the status light to turn red for 5 seconds and then switch to solid amber. The alarm relay will then be activated, and the switch can be released. After about 5 seconds, the alarm relay will turn off, and the status light will alternate slowly between green and amber while the self test executes. The controlling software simulates a 3000 ppm CO environment and causes the unit to alarm after approximately one minute has elapsed. When this happens, the status light turns red, and the CM-15A buzzer will sound two complete alarm cycles. The unit will then return to normal operation.

    3.) If the CM-15/15A is in an alarm condition due to the detection of carbon monoxide, one push of the switch will cause the alarm buzzer to mute, and the alarm relay to open for five minutes. After the five-minute period, if CO is still present, the status light will again switch to red, the alarm relay will close, and the CM-15A buzzer will sound.

    TROUBLE SIGNAL The Trouble signal is determined by the configuration of the alarm panel. The CM-15/15A Trouble Relay provides an open circuit for actuation of the control panel circuits. The status LED will flash amber, and the CM-15A buzzer will emit a short “chirp” every 30 to 60 seconds (refer to ERRORS below). Various parameters are continuously monitored by the CM-15/15A computer and will open the Trouble Relay when such a condition occurs. Failure of the CM-15/15A internal power supply or a lack of power to the detector will result in the Trouble Relay opening, and the status light will be OFF (not illuminated). The most common trouble would be a break in the wiring between the control panel and the CM-15/15A.

    ERRORS The computer in the CM-15/15A continuously monitors various operating parameters. If a problem is found, the unit will switch to Trouble mode (refer to TROUBLE SIGNAL above). To reset the unit for normal operation, turn off the power to the unit, wait a few seconds, and then turn the power back on. If this problem persists, your detector requires repair; contact the alarm panel installer or Macurco Tech Support for advice. If repair is required, return the unit to the manufacturer to comply with warranty.

    MAINTENANCE The CM-15/15A should be tested monthly by pushing the TEST/RESET switch (refer to TEST/RESET switch above). At the same time, the CM-15/15A should be cleaned using the soft brush attachment of your vacuum cleaner. The CM-15/15A should be tested after cleaning to ensure the unit is operating normally. There are no field calibration procedures for this unit.

    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.

    Version history
    Revision #:
    2 of 2
    Last update:
    ‎05-15-2018 03:56 PM
    Updated by:
     
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