Carrier 48GC04 Service And Maintenance Instructions

25Table 5 — Dirty LED TestDIRTY SENSOR TEST PROCEDURE1. Hold the test magnet where indicated on the side of thesensor housing for two seconds.2. Verify that the sensor’s Dirty LED flashes.Changing the Dirt Sensor TestBy default, sensor dirty test results are indicated by:• The sensor’s Dirty LED flashing.• The controller’s Trouble LED flashing.• The controller’s supervision relay contacts toggle.The operation of a sensor’s dirty test can be changed so that thecontroller’s supervision relay is not used to indicate test results.When two detectors are connected to a controller, sensor dirtytest operation on both sensors must be configured to operate inthe same manner.TO CONFIGURE THE DIRTY SENSOR TEST OPERATION1. Hold the test magnet where indicated on the side of thesensor housing until the sensor’s Alarm LED turns on andits Dirty LED flashes twice (approximately 60 seconds).2. Reset the sensor by removing the test magnet then holdingit against the sensor housing again until the sensor’s AlarmLED turns off (approximately 2 seconds).Remote Station TestThe remote station alarm test checks a test/reset station’s abili-ty to initiate and indicate an alarm state.SD-TRK4 Remote Alarm Test Procedure1. Turn the key switch to the RESET/TEST position forseven seconds.2. Verify that the test/reset station’s Alarm LED turns on.3. Reset the sensor by turning the key switch to theRESET/TEST position for two seconds.4. Verify that the test/reset station’s Alarm LED turns off.Remote Test/Reset Station Dirty Sensor TestThe test/reset station dirty sensor test checks the test/reset sta-tion’s ability to initiate a sensor dirty test and indicate the re-sults. It must be wired to the controller as shown in Fig. 43 andconfigured to operate the controller’s supervision relay. Formore information, see “Dirty Sensor Test” on page 24.Fig. 43 — Remote Test/Reset Station ConnectionsDirty Sensor Test Using an SD-TRK41. Turn the key switch to the RESET/TEST position for twoseconds.2. Verify that the test/reset station’s Trouble LED flashes.Detector CleaningCLEANING THE SMOKE DETECTORClean the duct smoke sensor when the Dirty LED is flashingcontinuously or sooner, if conditions warrant.1. Disconnect power from the duct detector then remove thesensor’s cover. See Fig. 44.2. Using a vacuum cleaner, clean compressed air, or a softbristle brush, remove loose dirt and debris from inside thesensor housing and cover. Use isopropyl alcohol and alint-free cloth to remove dirt and other contaminants fromthe gasket on the sensor’s cover.FLASHES DESCRIPTION1 0-25% dirty. (Typical of a newly installed detector)2 25-50% dirty3 51-75% dirty4 76-99% dirtyIMPORTANT: Failure to follow this ALERT can resultin an unnecessary evacuation of the facility.Changing the dirty sensor test operation will put thedetector into the alarm state and activate all automaticalarm responses. Before changing dirty sensor test opera-tion, disconnect all auxiliary equipment from the control-ler and notify the proper authorities if connected to a firealarm system.IMPORTANT: Failure to follow this ALERT can result inan unnecessary evacuation of the facility.This test places the duct detector into the alarm state. Unlesspart of the test, disconnect all auxiliary equipment from thecontroller before performing the test. If the duct detector isconnected to a fire alarm system, notify the proper authori-ties before performing the test.IMPORTANT: Failure to follow this ALERT can result inan unnecessary evacuation of the facility.If the test/reset station’s key switch is left in theRESET/TEST position for longer than seven seconds, thedetector will automatically go into the alarm state and acti-vate all automatic alarm responses.IMPORTANT: Failure to follow this ALERT can result inan unnecessary evacuation of the facility.Holding the test magnet to the target area for longer thanseven seconds will put the detector into the alarm state andactivate all automatic alarm responses.IMPORTANT: OPERATIONAL TEST ALERTFailure to follow this ALERT can result in an unneces-sary evacuation of the facility.If the smoke detector is connected to a fire alarm system,first notify the proper authorities that the detector isundergoing maintenance then disable the relevant circuitto avoid generating a false alarm.112141319152203RESET/TESTTroublePOWERALARMSUPERVISION RELAYCONTACTS [3]54132SD-TRK421TB318 VDC (-)18 VDC (-)AUXILIARYEQUIPMENT+−WIRE MUST BEADDED BYINSTALLERSMOKE DETECTORCONTROLLER