Carrier 50TCA04-A07 FIOP Smoke Detector Wiring and Response, Return Air Sensor Operating Position

6.For units with an economizer, the sampling tube is in- tegrated into the economizer housing but the connec- tion of the flexible tubing to the sampling tube is the same.

50TC	C08127
	Fig. 22 - Return Air Sensor Operating Position

FIOP Smoke Detector Wiring and Response

All units: FIOP smoke detector is configured to automatically shut down all unit operations when smoke condition is detected. See Fig. 23, 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 condition, de-energizing the ORN conductor.

Highlight C: 24-v power signal via ORN lead is removed at Smoke Detector input on LCTB; all unit operations cease immediately.

PremierLink Control: Unit operating functions (fan, cooling and heating) are terminated as described above. In addition:

Highlight D: On smoke alarm condition, the smoke detector NO Alarm contact will close, supplying 24-v power to GRA conductor.

Highlight E: GRA lead at Smoke Alarm input on LCTB provides 24-v signal. 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.

Using Remote Logic: Five conductors are provided for field use (see Highlight F) for additional annunciation functions.

Additional Application Data — Refer to Catalog No. HKRNKA-1XA for discussions on additional control features of these smoke detectors including multiple unit coordination. See Fig. 23.

B

D

C

F

E

A

C08246

Fig. 23 - Typical Smoke Detector System Wiring

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