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SMOKE DETECTORS
Smoke detectors are available as factory-installed options
on RAV180 models. Smoke detectors may be specified for
supply air only, for return air without or with economizer, or
in combination of supply air and return air. All components
necessary for operation are factory-provided and mounted.
The unit is factory-configured for immediate smoke detector
shutdown operation; additional wiring or modifications to
unit terminal board may be necessary to complete the unit
and smoke detector configuration to meet project
requirements.
Units equipped with factory-optional return-air smoke detec-
tors require a relocation of the sensor module at unit instal-
lation. See Fig. 49 for the as-shipped location.
COMPLETING
INSTALLATION
SMOKE SENSOR
1. Unscrew the two screws holding the return-air smoke
detector assembly. See Fig. 50, Step 1.
2. Save the screws.
3. Turn the assembly 90 degrees and then rotate end to
end. Make sure that the elbow fitting is pointing
down. See Fig. 50, Step 2.
4. Screw the sensor and detector plate into its operating
position using screws from Step 1. See Fig. 50, Step 3.
5. Connect the flexible tube on the sampling inlet to the
sampling tube on the basepan.
STEP 1
36
OF
RETURN-AIR
Fig. 50 — Completing Installation of Return Air Smoke Sensor
Specifications subject to change without notice.
ADDITIONAL APPLICATION DATA
Refer to the application data sheet titled "Factory-Installed
Smoke Detector, for Small and Medium Rooftop Units 2 to
25 Tons" for discussions on additional control features of
these smoke detectors including multiple unit coordination.
Fig. 49 — Return Air Smoke Detector; Shipping
STEP 2
RETURN AIR
SMOKE DETECTOR
(AS SHIPPED)
Position
STEP 3
RAV-180-01SI
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