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CAUTION: Under no circumstances is the ionization or photoelectric
detector portion of the unit to be disassembled by anyone
other than an authorized Siemens Industry, Inc. Systems
Technician. For service, contact your nearest authorized Si-
emens Industry, Inc. Service Representative.
Periodic Testing
The unit should be tested per NFPA 70 recommendations to ensure opti-
mum performance. This can be done by removing the sealing plug from
the inlet sampling tube on the opposite side of the duct and blowing smoke
directly into the inlet tube. Check that the fire alarm system is activated.
CAUTION: If the fire alarm system is connected to a central station or
fire department, or has external devices such as fans, extin-
guishers, etc., connected, notify appropriate personnel and
disconnect the external devices until all tests are completed.
After testing, reset the system, reconnect the devices, and
notify the personnel that the system is operating again.
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