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1. Turn the power to the unit "On". Red LED pilot light should illuminate at 8 sec. intervals
2. Open door to the hold open point. The door should hold open. Manually pull door out of
hold open and release. Door should close
3. Open door to the hold open position. Depress (maintained type) On/Off test switch button on the power supply board. Door should close
4. Depress On/Off test switch again. Open door to the hold open position. Inducing smoke into the smoke detector chamber assembly
will bring the unit into alarm. The red LED will be continuously illuminated and the door will close. After clearing the smoke chamber,
reset unit as follows:
1. Remote Reset: Cycle main power by turning the facility main power supply OFF then ON.
NOTE: If there are other units connected to the same power supply, those doors will close.
They will have to be reopened returning them to the hold open position
2. Local Reset: Insert a small flat head screwdriver through the cover and into the slotted
li ght tube on the smoke detector as shown. Turn screwdriver slightly (about 1/8 turn)
clockwise until hitting stop and hold for 2 seconds until the Red LED turns OFF.
WARNING: Do not force past the stop. Doing so may damage the smoke detector
Once the detector is reset and the smoke has cleared, the detector's Red LED should flash
once every 8 seconds. The door(s) should hold open now
SARGENT recommends cleaning smoke detectors at least every six months. The frequency of cleaning will depend upon local
ambient conditions.
The smoke detector in this door closer-holder has been enhanced with a feature that detects when a smoke-sensing chamber
requires cleaning due to dirt and dust. The need for cleaning is indicated by the flashing of the Red LED once per second
• Normal Supervisory Operation — Red LED flashes once every 8 seconds
• Dirty Chamber needs cleaning — Red LED flashes once every second
• Smoke Detection — Red LED is continuously illuminated
To clean the smoke detector assembly, follow the instructions below:
NOTE: Before servicing the system, notify the proper authorities
that the smoke detector system is undergoing maintenance
and will be temporarily out of service. Disable the zone undergoing
maintenance to prevent unwanted alarms
• Remove detector cover and screen assembly using a standard screwdriver. Turn the screwdriver in the cover slot to
loosen the cover and carefully rock the cover back and forth until it snaps out of place. See slot location above
• Inspect chamber for particles and dust. Vacuum the screen, cover, and photo chamber. Then use clean, compressed air to
loosen and blow out any remaining debris
• Before reassembling the detector, be sure all parts are free of dust and debris
• Replace cover and screen, aligning cover snaps. Press cover onto chamber until it snaps into place
• Measure and record the test voltage at test points RP1 and RP2 (see above). If the smoke detector is operating normally and
was cleaned effectively, the test voltage will be greater then .90VDC and less than 1.58VDC. The test voltage will increase
with dust accumulation in the smoke sensing chamber. A difference in test voltages over time will provide an indication
of dust accumulation
• Enable system and inform proper authorities that system is operational
See IMPORTANT NOTE AT END OF PAGE 7
Checkout Procedure
Resetting Instructions
Maintenance of Smoke Detectors
Chamber
Cover and
screen
Copyright © 2008 SARGENT Manufacturing. All rights reserved.
Reproduction in whole or in part without the express written
permission of SARGENT Manufacturing is prohibited.
Slot for screwdriver
To remove cover
Slotted light tube (Red LED)
RP1 test point
RP2 test point
3
A7699C
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