Fiop Smoke Detector Wiring And Response - Carrier WeatherMaster 50HCQ04-12 Service And Maintenance Instructions

FIOP Smoke Detector Wiring and Response

ALL UNITS
FIOP smoke detector is configured to automatically shut down
all unit operations when a smoke condition is detected. See
Fig. 54, Smoke Detector Wiring.
HIGHLIGHT A
JMP 3 is factory-cut, transferring unit control to smoke detector.
HIGHLIGHT B
Smoke detector NC contact set will open on smoke alarm con-
dition, de-energizing the ORN conductor.
HIGHLIGHT C
24V power signal using the ORN lead is removed at the Smoke
Detector input on LCTB; all unit operations cease immediately.
PREMIERLINK™ AND RTU OPEN CONTROLS
Unit operating functions (fan, cooling and heating) are termi-
nated as described above.
HIGHLIGHT D
On smoke alarm condition, the smoke detector NO Alarm con-
tact will close, supplying 24-v power to GRA conductor.
B
D
Fig. 54 — Typical Smoke Detector System Wiring
HIGHLIGHT E
GRA lead at Smoke Alarm input on LCTB provides 24-v sig-
nal to FIOP DDC control.
PREMIERLINK
This signal is conveyed to PremierLink FIOP's TB1 at terminal
TB1-6 (BLU lead). This signal initiates the FSD sequence by
the PremierLink control. FSD status is reported to connected
CCN network.
RTU OPEN
The 24-v signal is conveyed to RTU Open J1-10 input termi-
nal. This signal initiates the FSD sequence by the RTU Open
control. FSD status is reported to connected BAS network.
USING REMOTE LOGIC
Five conductors are provided for field use (see Highlight F) for
additional annunciation functions.
ADDITIONAL APPLICATION DATA
Refer to "Factory Installed Smoke Detectors for Small and Me-
dium Rooftop Units 2 to 25 Tons" for discussions on additional
control features of these smoke detectors including multiple
unit coordination. See Fig. 54.
29
C
F
E
A