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SSDMOD400R SENSITIVITY TEST
After verification of alarm capability, use the SSDMOD400R test module with a voltmeter to check detector sensitivity as
indicated in the SSDMOD400R installation manual. The housing cover must be removed to perform this test.
If the SSDMOD400R readings indicate that the sensor head is outside of the acceptable range, the sensor heads require
cleaning. (Refer to PERIODIC MAINTENANCE REQUIREMENTS).
TROUBLE TEST
The capability of Trouble detection is tested by removing the detector head from the duct housing. The detector head is
removed by turning it counterclockwise about 10 degrees (Figure 8). The system control panel should indicate a trouble
condition. Replacing the detector head should clear the trouble condition.
STEP 8. INSTALL THE COVER
Install the cover using the four screws. Be certain filters are installed as specified in Step 6. Make sure that the cover fits
into the base groove and that all gaskets are in their proper positions. Tighten the four cover screws to 10 in-lbs.
STEP 9. PERFORM THE FINAL SYSTEM CHECK
Position the magnet as shown in Figure 7. The LEDs on the detector should light. Any accessory LED(s) should also light.
The system control panel should indicate an alarm condition.
PERIODIC MAINTENANCE REQUIREMENTS
Air duct smoke detectors should be maintained at least once a year – more often if the detector heads become obviously
dirty. The detectors must also be cleaned immediately after a fire. Failure to properly maintain air duct smoke detectors
may cause unnecessary false alarms.
Honeywell recommends that a permanent Detector Test Log be set up and maintained for each individual smoke detec-
tor in each building. Each detector should be clearly described, with information on the type of detector, the model num-
ber, the serial number (if any), the location, and the type of environment. Data entries should include test dates, type of
test mode, test results, maintenance, and comments. A Detector Test Log is included at the end of this manual.
Recommended Detector Maintenance Procedure
NOTE: Notify the proper authorities that the smoke detector system is undergoing maintenance and will be temporarily
out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms and possible
dispatch of the fire department.
1. Turn off power to the system.
2. Remove and inspect sampling tube filters.
3. If filters are heavily coated with dirt, replace them with new filters. If they are not heavily coated, use a vacuum clean-
er or compressed air nozzle to remove dust, then install the filters.
4. Remove detector from housing. (See Figure 8.)
H500-03-00
TEST COIL
DETECTOR
HEAD
Figure 9. SSDRTS451/SSDRTS451KEY Test Coil Installation
9
A78-1994-02
I56-475-09R
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