Smoke Detectors; Premierlink™ Controller (Factory Option); Rtu Open Controller; Controller Options - Carrier 50KC*A/B06 Series Installation Instructions Manual

Smoke Detectors

Smoke detectors are available as factory-installed options on
50KC models. Smoke detectors may be specified for supply-
air only or 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 require-
ments.
Units equipped with factory-optional return-air smoke detec-
tors require a relocation of the sensor module at unit installa-
tion. See Fig. 50 for the as-shipped location.
RETURN AIR
SMOKE DETECTOR
(AS SHIPPED)
Fig. 50 — Return Air Smoke Detector, Shipping
Position
STEP 1
Fig. 51 — Completing Installation of Return Air Smoke Sensor
Completing Installation of Return Air Smoke Sensor:
1. Unscrew the two screws holding the return-air smoke
detector assembly. See Fig. 51, Step 1. Save the screws.
2. Turn the assembly 90 degrees and then rotate end to end.
Make sure that the elbow fitting is pointing down. See
Fig. 51, Step 2.
3. Screw the sensor and detector plate into its operating
position using screws from Step 1. See Fig. 51, Step 3.
4. Connect the flexible tube on the sampling inlet to the
sampling tube on the basepan.
ADDITIONAL APPLICATION DATA
Refer to the application data document "Factory Installed
Smoke Detectors for Small and Medium Rooftop Units 2 to
25 Tons" for discussions on additional control features of
these smoke detectors including multiple unit coordination.
PremierLink™ Controller (Factory Option)
For details on operating 50KC-*04-06 units equipped with
the factory-installed PremierLink controller option, refer to
the PremierLink Retrofit Rooftop Controller Version 3.x In-
stallation, Start-Up, and Configuration Instructions manual.
RTU Open Controller (Factory-installed Option)
For details on operating 50KC*04-06 units equipped with the
factory-installed RTU Open controller refer to the "Factory-
Installed RTU Open Multi-Protocol Controller Control,
Start-Up, Operation and Troubleshooting" manual.

Controller Options

LOW AMBIENT

If the unit comes with Electro-Mechanical (EM) control, then
no adjustment is necessary.
If the unit comes with the PremierLink™ or RTU Open con-
trol option, then refer to its installation control manual for de-
tails on adjusting "Cooling Lock-Out" setting and configure
for the specific job requirements.
STEP 2
38
STEP 3