Carrier 50TCQD Specifications download pdf (Page 29)

Completing Installation of Return Air Smoke

Sensor

SAMPLE TUBE

C09686

Fig. 43 -- Return Air Detector Shipping Position

1. Remove blower access panel.

2. Locate bracket and secure and secure to fan deck. Se-

cure with #10 screws provided.

3. Remove plastic cover from sensor. See Fig. 43.

4. Mount the sensor to the bracket as shown using two

#8 screws. See Fig. .

5. Install plastic adapter to the smoke sensor.

6. Locate short pick--up tube and EMT to seal--tight as-

sembly. Secure adapter to pick--up tube.

7. Locate seal--tight assembly and secure it to the ad-

apter, Snap seal--tight into the smoke sensor.

8. Remove ⅞” knoc kout plug in blower side plate. Refer

to Fig. For l ocation depending on the configuration

of the unit.

9. Snap seal--tight assembly into knockout hole.

10. Route seal--tight assembly to connect or and complete

connection. See Fig. . Ensure seal--tight assembly

does not interfere with blower operation. Cut away

any excess seal--tight material.

11. Route 10 ft. (3.05m) cable through opening on lower

right of c ontrol box. Route with indoor fan wires se-

curing cable to wires with wire ties provided.

12. Route into sensor through knockout hole and plug end

into theRJ45 connector. Ensure knockout hole is

sealed with grommet mounted to cable .

13. Reinstall plastic cover.

14. Installation is now complete. Refer to Sensor and

Controller section for operation.

FIOP Smoke Detector Wiring and Response

All units: FIOP smoke detector is c onfigured to

automatically shut down all unit operations when a smoke

condition is detected. See Fig. 45, Typical Smoke

Detector System Wiring.

Highlight A: JMP 3 is factory--cut, transferring unit

control to smoke detect or.

Highlight B: Smoke detector NC contact set will open on

smoke alarm condition, de--energizing the ORN

conductor.

S For units with an economizer, the sampling tube is

integrated i nto the economizer housing but the

connection of the flexible tubing to the sampling tube is

the same.

Highlight C: 24V power signal via ORN lead is removed

at Smoke Detector input on CTB (Control Term inal

Board); all unit operations cease immediately.

PremierLink Control: Unit operating functions (fan,

cooling and heating) are terminat ed as described above. In

addition:

Highlight D: On smoke alarm condition, the smoke

detector NO Ala rm contact will close, supplying 24V

power to GRA conductor.

Highlight E: GRA lead at Smoke Alarm input on CTB

provides 24V signal to FIOP DDC control.

PremierLink: This signal is conveyed to PremierLink

FIOPs 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 24V signal is c onveyed to the

RTU--OPEN J1 --10 input terminal. This signal initiates the

FSD sequence by the RTU--OPEN cont rol. FSD status is

reported to connected BAS network.

Using Remote Logic: Five conductors are provi ded for

field use (see Highlight F in Fig. 45) for additional

annunciation functions.

Additional Application Data — Refer to Catalog No.

HKRNKA--1XA for discussions on additiona l control

features of these smoke detectors including multiple unit

coordination. See Fig. 45.

50TCQ

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Carrier 50TCQD Specifications Page 29

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