Carrier 50TCQA installation instructions Typical Module Installation

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CONTROL

BOX

50TCQA

TRACK

FLANGE

C08135

Fig. 25 - Typical Module Installation

BUSHING

 

SINGLE

 

POINT BOX

 

MOUNTING

 

SCREWS

 

DRIP BOOT

 

BRACKET

 

MOUNTING

 

SCREWS

 

POWER

 

WIRES

 

FOAM

 

BUSHING

 

 

22.2

23

1

3

HEATER

RELAYS

HEATER

MOUNTING

SCREWS

C08136

Fig. 26 - Typical Single Point Installation

Single Point Boxes and Supplementary Fuses — When the unit MOCP device value exceeds 60-A,unit-mounted supplementary fuses are required for each heater circuit. These fuses are included in accessory Single Point Boxes, with power distribution and fuse blocks. The single point box will be installed directly under the unit control box, just to the left of the partition separating the indoor section (with electric heaters) from the outdoor section. The Single Point Box has a hinged access cover. See Fig. 26. The Single Point Box also includes pigtails to complete the wiring between the Single Point Box and the unit’s main control box terminals. Refer to the accessory heater and Single Point Box installation instructions for details on tap connections.

All fuses on 50TCQ units are 60-A. (Note that all heaters are qualified for use with a 60-A fuse, regardless of actual heater ampacity, so only 60-A fuses are necessary.)

Single Point Boxes without Fuses — Refer to accessory heater and Single Point Box installation instructions for details on tap connections.

Low-Voltage Control Connections — Run the low-voltage control leads from the heater module(s) - VIO and BRN (two of each if two modules are installed; identify for Module #1) - to the 4-pole terminal board TB4 located on the heater bulkhead to the left of Heater #1. Connect the VIO leads from Heater #1 and Heater #2 to terminal TB4-1. Connect the BRN leads to terminal TB4-3. See Fig. 27.

DEFROST

BOARD

E-HEAT ORN

P3-3 BRN

 

ORN

BRN

TB4

1

3

 

VIO

VIO BRN BRN

Field

Connections

Elec Htr

VIO HR2 BRN

VIO HR1 BRN

HR1: On Heater 1 in Position #1

HR2: On Heater 2 in Position #2 (if installed)

C09013

Fig. 27 - Accessory Electric Heater Control Connections

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Contents Installation Instructions 50TCQA Unit Dimensional Drawing 04 07 Size Units Unit Dimensional Drawing 04 07 Size Unit Plan for Unit LocationInspect unit Plan for Sequence of Unit InstallationProvide Unit Support Roof Curb Details Field Fabricate Ductwork Rig and Place UnitDuctwork when required Install Outside Air HoodEconomizer Hood Removal and Setup Factory Option Convert to Horizontal and ConnectTwo Position Damper Hood Removal and Setup Factory Option Damper AssemblyInstall External Condensate Trap and Line Economizer Hood and Two-Position HoodField Power Supply Make Electrical ConnectionsUnits with Factory-Installed Disconnect Convenience OutletsFactory-Option Thru-Base Connections Splice BLU +460 480 H2 + H3 575 600Field Control Wiring Heat Anticipator SettingsUnits without Thru-Base Connections ThermostatElectric Heaters Heater Model NumberTypical Module Installation PremierLinkt Factory-Option PremierLink ControllerPremierLink Wiring Schematic 55 Space Temperature Sensor Wiring Space Thermostat Connections PremierLink Sensor Usage Space Sensor Mode Thermostat ModeOutside and Return Air Enthalpy Sensor Wiring Economizer controlsIndoor CO2 Sensor 33ZCSENCO2 Connections PremierLink Filter Switch Connection Recommended Cables Color Code Recommendations2413 or American A22503 Belden 8772 Columbia 02525RTU-MP control system RTU-MP Multi-Protocol Control BoardRTU-MP System Control Wiring Diagram RTU-MP Controller Inputs and Outputs Space Temperature SPT Sensors 33ZCT59SPT Economizer controlsConnecting Discrete Inputs Filter Status Fan StatusPower Exhaust output Communication Wiring Protocols GeneralDS = Dip Switch BACnet MS/TP SW3 example shown Remote OccupancyLocal Access RTU-MP Troubleshooting Communication LEDsSystem ControllerLEDs LEDs on the RTU-MP show the status of certain functionsController Assembly Smoke Detector LocationsCompleting Installation of Return Air Smoke Sensor Typical Return Air Detector LocationUnit Wire/MOCP Sizing Data Pwrd C.O 56/5965/69 74/8074/79 44/4649/52 79/8661/64 79/8555/58 72/7870/74 79/8469/75 43/4675/79 84/9052/54 61/6547/50 57/6170/76 82/9053/55 62/6676/82 88/95EconoMi$er IV Occupancy Switch Adjust Factory-Installed OptionsSmoke Detectors Install Accessories Pre-Start and Start-Up50TCQA 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.