Bryant 551J installation instructions Completing Installation of Return Air Smoke Sensor

Completing Installation of Return Air Smoke Sensor:

1.Unscrew the two screws holding the Return Air Sensor detector plate. See Fig. 34. Save the screws.

2.Remove the Return Air Sensor and its detector plate.

3.Rotate the detector plate so the sensor is facing outwards and the sampling tube connection is on the bottom. See Fig. 35.

4.Screw the sensor and detector plate into its operating position using screws from Step 1. Make sure the sampling tube connection is on the bottom and the exhaust tube is on the top. See Fig. 35.

5.Connect the flexible tube on the sampling inlet to the sampling tube on the basepan.

Screws

Flexible

Exhaust Tubes

Sample Tube

C08126

Fig. 34 - Return Air Detector Shipping Position

C08127

Fig. 35 - Return Air Sensor Operating Position

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

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