7
INSTALLATION OF SMOKE DETECTORS
CAUTION: Air Duct Detector Models SA-3I/-11P are designed for use with Smoke
Detector Models DI-B3, DI-B3H, or PE-11. Do not use any other detector
(See Figure 3, Items 14 and 15).
For DI-B3 and DI-B3H Detectors:
Installation
Align the detector alarm LED with the LED imprint located within the detector compartment
on the housing. Rotate the detector counterclockwise while pushing on the detector until it
drops in place. Next, push and rotate clockwise to engage the electrical connections. The
detector automatically stops and locks in place.
Removal
To remove the detector, push on the detector and rotate it counterclockwise until the stop is
reached. Then pull the detector out of the base to disengage.
For PE-11 Detector:
Installation of the DB-ADPT Base Adapter
a.
Install the DB-ADPT adapter into the detector compartment on the housing.
b.
Push the adapter into the base and rotate clockwise to engage the electrical connections.
The adapter will automatically stop and lock into place.
Installation/Removal of PE-11 Detector in Base Adapter
To Install:
• Align detector with base and insert detector.
• Rotate detector counterclockwise while gently pressing on it until the detector drops fully
into base.
• Then rotate the detector clockwise until it stops and locks in place. Insert optional locking
screw (Order Model LK-11).
To Remove:
• Rotate the detector counterclockwise until stop is reached.
• Pull detector out of base.
Typical Fire Alarm System Interface
The Model SA-3I/-11P can be wired to interface to a fire alarm system as shown in Figure 7.
The connections to the alarm relay (NO) contacts can be made between terminals 9 and 10
or 12 and 13. The connections to the trouble relay (NC) contacts can be made between terminals
7 and 8.
NOTES:
1. All relay contacts are shown with the SA-3I/-11P powered by
120 VAC and in the normal supervisory, no alarm, condition.
2. When connected into a fire alarm system, trouble contacts must
be wired in beyond the last detector so as not to interfere with an
alarm.
CAUTION: Do not use looped wire at the relay contact
connections (NC, C, NO). Break wire runs at the
connections to provide supervision of the
connections.
Figure 7
Typical Fire Alarm System Interface
