Chapter 6: Preventive maintenance and testing
P/N 3101890-EN • REV 006 • ISS 21JUN18 113
Detector component replacement procedures
V-PCOS smoke chamber
V-PCOS smoke detectors have a replaceable smoke chamber. Replace the chamber with model number 2-
SPRC2 if the control panel still indicates a dirty detector after cleaning the detector. Refer to the 2-SPRC2 Smoke
Chamber Replacement Installation Sheet (P/N 3101596) for instructions.
CO sensor module
CO detectors use a 2-CORPL replacement sensor. Replace the sensor every six years from the date of
manufacture or when the control panel indicates a sensor end-of-life condition, whichever comes first. Refer to the
2-CORPL CO Replacement Module Installation Sheet (P/N 3101589) for instructions.
Note: For proper operation, never replace the CO sensor without also replacing the PCB because each board
has calibration data specific to the matching CO sensor.
Maintenance schedule
Table 39: Routine maintenance schedule
Frequency
Quarterly/Annually
Supervisory signal devices (except valve tamper switches)
Quarterly
-premises transmission equipment Quarterly
Semiannually
Semiannually
Annually
Control unit trouble signals
Annually
Fiber optic cable connections
Annually
Emergency voice/alarm communication equipment
Annually
Annually
Annually
detectors Annually
Annually
Fire extinguishing systems or suppression systems
Annually
Annually
Annually
Audible notification appliances
Annually
Textual audible notification appliances (speak
ers) Annually
Visible notification appliances
Annually
Supervising station fire alarm system transmitters
Annually
[1] Test control equipment quarterly when it is not connected to a supervising station.
[2] Replace batteries every five years or sooner if conditions warrant.
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