System Sensor DH200PL - Manual (Page 7)

D200-38-00 7 I56-1976-004R
[9.2.2] Alarm Tests
[9.2.2.1] M02-04-00 Magnet Test
1. Place the painted surface of the magnet onto the TEST
locator on the bottom of the detector housing (Figure
12).
2. Verify system control panel alarm status and control
panel execution of all intended auxiliary functions (i.e.
fan shutdown, damper control, etc.)
3. The detector is self-restoring when the magnet is
removed. Verify that the system control panel has reset.
[9.2.2.2] RTS451/RTS451KEY Remote Station Test
The RTS451/RTS451KEY Remote Test Station facilitates test
of the alarm capability of the duct smoke detector. These
accessories provide the stimulus to initiate an alarm condi-
tion at the detector. The detector is self-restoring when the
accessory test stimulus is removed. Verify that the system
control panel has reset.
[9.2.3] Sensitivity Tests
Notify the proper authorities that the smoke detector sys-
tem is undergoing maintenance, and that the system will
temporarily be out of service. Disable the device or system
undergoing maintenance to prevent unwanted alarms and
possible dispatch of the fire department.
Figure 12. Testing detector alarm:
[9.3] Maintenance of Duct Smoke Detectors
[9.3.1] Air Filters
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 (p/n F36-09-11). If they are not heavily
coated, use a vacuum cleaner or compressed air nozzle
to remove dust, then reinstall the filters.
[9.3.2] Photo Detector Boards
1. Remove the screen by gently grasping on each side and
pulling straight off
2. Lift the photo chamber in the same fashion. Vacuum the
screen and cover. Use clean, compressed air to loosen and
blow out any remaining debris. Replacement screens (p/n
S08-39-01) are available from System Sensor.
3. Vacuum photo chamber, then use clean compressed air to
blow area clean.
4. Replace the chamber by pressing it onto the base. Press
the screen into place. It should fit tightly on the chamber.
[10] Board Replacement
[10.1] Sensor Board Replacement
1. Remove the two sensor board mounting screws.
2. Pull gently on the board to remove it.
3. To replace the board, align the board mounting features,
holes, and the interconnect terminals. Push the board
into place.
4. Secure board with the two mounting screws.
[10.2] Power Board Replacement
1. Disconnect wiring from the terminal block.
2. Remove the two power board mounting screws.
3. Pull gently on the board to remove it.
4. To replace the board, align the board mounting features,
holes, and the interconnect terminals. Push the board
into place.
5. Secure board with the two mounting screws.
6. Re-connect wiring to terminal block.
Accessory Current Loads at 24VDC
DEVICE STANDBY ALARM
RA400Z 0mA 10 mA Max.
RTS451/RTS451KEY 0mA 7.5 mA Max.
H0460-00