Carrier WeatherMaker 50TCQ07 Installation Instructions Manual

Also see for WeatherMaker 50TCQ*07: Product data

38RTU-Open Controller System (Factory-InstalledOption)For details on operating 50TCQ*07 units equipped with thefactory-installed RTU Open controller, refer to the “Factory-Installed RTU Open Multi-Protocol Controller Control, Start-Up, Operation and Troubleshooting” manual.Smoke DetectorsSmoke detectors are available as factory-installed options on50TCQ models. Smoke detectors may be specified for supplyair only, for return air without or with economizer, or in combi-nation of supply air and return air. All components necessaryfor operation are factory-provided and mounted. The unit isfactory-configured for immediate smoke detector shutdownoperation; additional wiring or modifications to unit terminalboard may be necessary to complete the unit and smoke detec-tor 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. 48 for the as-shipped location.COMPLETING INSTALLATION OF RETURN AIRSMOKE SENSOR1. Unscrew the two screws holding the Return Air SmokeDetector assembly. See Fig. 49, 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. SeeFig. 49, Step 2.3. Screw the sensor and detector plate into its operating posi-tion using screws from Step 1. See Fig. 49, Step 3.4. Connect the flexible tube on the sampling inlet to the sam-pling tube on the basepan.Fig. 48 — Return Air Smoke Detector(Shipping Position)ADDITIONAL APPLICATION DATARefer to the Application Data sheet titled, Factory InstalledSmoke Detectors for Small and Medium Rooftop Units 2 to 25Tons for discussions on additional control features of thesesmoke detectors, including multiple unit coordination.Fig. 49 — Completing Installation of Return Air Smoke SensorRETURN AIRSMOKE DETECTOR(AS SHIPPED)Step 1 Step 2 Step 3