Carrier 50TCQA installation instructions Completing Installation of Return Air Smoke Sensor

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downward, into the return air stream. The sampling tube is connected via tubing to the return air sensor that is mounted on a bracket high on the partition between return filter and controller location. (This sensor is shipped in a flat-mounting location. Installation requires that this sensor be relocated to its operating location and the tubing to the sampling tube be connected. See “Completing Installation of Return Air Smoke Sensor:” for details.)

Return Air Detector module (shipping position shown)*

Controller module

Return Air Detector Sampling Tube

*RA detector must be moved from shipping position to operating position by installer

C07307

Fig. 61 - Typical Return Air Detector Location

Return Air with Economizer — The sampling tube is inserted through the side plates of the economizer housing, placing it across the return air opening on the unit basepan. See Fig. 61. The holes in the sampling tube face downward, into the return air stream. The sampling tube is connected via tubing to the return air sensor that is mounted on a bracket high on the partition between return filter and controller location. (This sensor is shipped in a flat-mounting location. Installation requires that this sensor be relocated to its operating location and the tubing to the sampling tube be connected. See the following installation procedure.)

Return Air

Sampling Tube

C08129

Fig. 62 - Return Air Sampling Tube Location

Completing Installation of Return Air Smoke Sensor:

1.Unscrew the two screws holding the Return Air Sensor detector plate. See Fig. 63. Save the screws.

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

3.Rotate the detector plate so the sensor is facing out- wards and the sampling tube connection is on the bot- tom. See Fig. 64.

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 ex- haust tube is on the top. See Fig. 64.

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

Screws

Flexible

Exhaust Tubes

Sample Tube

C08126

Fig. 63 - Return Air Detector Shipping Position

C08127

Fig. 64 - 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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Contents Installation Instructions 50TCQA Unit Dimensional Drawing 04 07 Size Units Plan for Unit Location Unit Dimensional Drawing 04 07 Size UnitProvide Unit Support Plan for Sequence of Unit InstallationInspect unit Roof Curb Details Rig and Place Unit Field Fabricate DuctworkConvert to Horizontal and Connect Ductwork when requiredInstall Outside Air Hood Economizer Hood Removal and Setup Factory OptionDamper Assembly Two Position Damper Hood Removal and Setup Factory OptionEconomizer Hood and Two-Position Hood Install External Condensate Trap and LineMake Electrical Connections Field Power SupplyConvenience Outlets Units with Factory-Installed Disconnect575 600 Factory-Option Thru-Base ConnectionsSplice BLU + 460 480 H2 + H3Thermostat Field Control WiringHeat Anticipator Settings Units without Thru-Base ConnectionsHeater Model Number Electric HeatersTypical Module Installation PremierLink Controller PremierLinkt Factory-OptionPremierLink Wiring Schematic 55 Space Temperature Sensor Wiring Space Thermostat Connections PremierLink Sensor Usage Thermostat Mode Space Sensor ModeEconomizer controls Outside and Return Air Enthalpy Sensor WiringIndoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection American A22503 Belden 8772 Columbia 02525 Recommended CablesColor Code Recommendations 2413 orRTU-MP Multi-Protocol Control Board RTU-MP control systemRTU-MP System Control Wiring Diagram RTU-MP Controller Inputs and Outputs 33ZCT59SPT Economizer controls Space Temperature SPT SensorsFan Status Connecting Discrete Inputs Filter StatusRemote Occupancy Power Exhaust outputCommunication Wiring Protocols General DS = Dip Switch BACnet MS/TP SW3 example shownRTU-MP Troubleshooting Communication LEDs Local AccessLEDs on the RTU-MP show the status of certain functions SystemController LEDsSmoke Detector Locations Controller AssemblyTypical Return Air Detector Location Completing Installation of Return Air Smoke SensorUnit Wire/MOCP Sizing Data 74/80 Pwrd C.O56/59 65/6979/86 74/7944/46 49/5272/78 61/6479/85 55/5843/46 70/7479/84 69/7561/65 75/7984/90 52/5482/90 47/5057/61 70/7688/95 53/5562/66 76/82Smoke Detectors Adjust Factory-Installed OptionsEconoMi$er IV Occupancy Switch Pre-Start and Start-Up Install Accessories50TCQA 50TCQA Catalog No 50TCQ---01SI

50TCQA specifications

The Carrier 50TCQA is a split system air conditioner known for its efficiency, reliability, and innovative technology. Designed for commercial and residential applications, this model provides a solution that combines comfort with cost-effectiveness, making it a popular choice for homeowners and businesses alike.

One of the key features of the Carrier 50TCQA is its impressive SEER (Seasonal Energy Efficiency Ratio) rating, which ensures optimal energy efficiency. This means that users can enjoy lower utility bills while maintaining a comfortable indoor climate. The unit is engineered to perform well even in extreme temperatures, providing effective cooling and heating when needed.

This model employs a scroll compressor, which is known for its durability and quiet operation. The compressor's design allows for smoother operation and reduced noise levels, making it suitable for use in noise-sensitive environments. Additionally, the 50TCQA is equipped with a multi-speed fan, allowing for adjustable airflow to match the specific comfort requirements of different spaces.

The Carrier 50TCQA utilizes advanced refrigerant technology, specifically the environmentally friendly R-410A refrigerant. This refrigerant helps to reduce greenhouse gas emissions and provides efficient cooling without depleting the ozone layer. The unit's design is also focused on minimizing refrigerant leaks, ensuring environmental safety and reliability over the long term.

Ease of installation and maintenance is another significant characteristic of the Carrier 50TCQA. The unit features a compact and lightweight design, making it easier for technicians to install and service. Moreover, the system is equipped with diagnostic capabilities that allow for quick identification of issues, enhancing service efficiency and reducing downtime.

In terms of control, the Carrier 50TCQA offers a sophisticated thermostat option that includes programmable settings. Users can easily set desired temperatures, timers, and operating modes, ensuring optimal comfort throughout the day and night.

Overall, the Carrier 50TCQA presents a robust solution for climate control needs. With its energy-efficient performance, advanced technologies, and user-friendly features, it embodies Carrier's commitment to providing high-quality heating and cooling solutions that cater to modern lifestyle requirements. This model stands out as an excellent option for those looking to invest in a reliable HVAC system that enhances comfort while being mindful of energy consumption and environmental considerations.
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