Premierlink™ Controller (Factory Option); Rtu Open Controller System; Smoke Detectors; Additional Application Data - Carrier WeatherMaster 48HC14 Installation Instructions Manual

PremierLink™ Controller (Factory Option)
For details on operating 48HC*14 units equipped with the fac-
tory-installed PremierLink controller option, refer to the Pre-
mierLink Retrofit Rooftop Controller Version 3.x Installation,
Start-Up, and Configuration Instructions manual.
RTU Open Controller System (Factory-Installed
Option)
For details on operating 48HC*14 units equipped with the fac-
tory-installed RTU Open controller, refer to the "Factory-In-
stalled RTU Open Multi-Protocol Controller Control, Start-
Up, Operation and Troubleshooting" manual.

Smoke Detectors

Smoke detectors are available as factory-installed options on
48HC**14 models. Smoke detectors may be specified for sup-
ply air only, for return air without or with economizer, or in com-
bination of supply air and return air. Return-air smoke detectors
are arranged for vertical return configurations only. All compo-
nents 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 installa-
tion. See Fig. 65 for the as-shipped location.
Completing installation of return-air smoke sensor:
1. Unscrew the two screws holding the Return Air Smoke
Detector assembly. See Fig. 66, 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. 66, Step 2.
STEP 1
Fig. 66 — Completing Installation of Return Air Smoke Sensor
3. Screw the sensor and detector plate into its operating posi-
tion using screws from Step 1. See Fig. 66, Step 3.
4. Connect the flexible tube on the sampling inlet to the sam-
pling tube on the basepan.

ADDITIONAL APPLICATION DATA

Refer to the Application Data sheet titled, 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.
RETURN AIR
SMOKE DETECTOR
(AS SHIPPED)
Fig. 65 — Return Air Smoke Detector, Shipping
STEP 2
47
Position
STEP 3