Carrier 50TCQA Plan for Sequence of Unit Installation, Inspect unit, Provide Unit Support

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Roof mount —

Check building codes for weight distribution requirements. Unit operating weight is shown in Table 1.

Step 2 — Plan for Sequence of Unit Installation

The support method used for this unit will dictate different sequences for the steps of unit installation. For example, on curb-mounted units, some accessories must be installed on the unit before the unit is placed on the curb. Review the following for recommended sequences for installation steps.

Curb-mounted installation —

Install curb

Install field-fabricated ductwork inside curb

Install accessory thru-base service connection package (affects curb and unit) (refer to accessory installation instructions for details)

Prepare bottom condensate drain connection to suit planned condensate line routing (refer to Step 9 for details)

Rig and place unit Install outdoor air hood

Install condensate line trap and piping Make electrical connections

Install other accessories

Pad-mounted installation —

Prepare pad and unit supports

Check and tighten the bottom condensate drain connection plug

Rig and place unit

Convert unit to side duct connection arrangement Install field-fabricated ductwork at unit duct openings Install outdoor air hood

Install condensate line trap and piping Make electrical connections

Install other accessories

Frame-mounted installation —

Frame-mounted applications generally follow the sequence for a curb installation. Adapt as required to suit specific installation plan.

Step 3 — Inspect unit

Inspect unit for transportation damage. File any claim with transportation agency.

Confirm before installation of unit that voltage, amperage and circuit protection requirements listed on unit data plate agree with power supply provided.

Step 4 — Provide Unit Support

Roof Curb Mount —

Accessory roof curb details and dimensions are shown in Fig. 3. Assemble and install accessory roof curb in accordance with instructions shipped with the curb.

NOTE: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasket supplied with the roof curb as shown in Fig. 3. Improperly applied gasket can also result in air leaks and poor unit performance.

Curb should be level. This is necessary for unit drain to function properly. Unit leveling tolerances are show in Fig. 4. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

Install insulation, cant strips, roofing felt, and counter flashing as shown. Ductwork must be attached to curb and not to the unit. The accessory thru-the-base power package must be installed before the unit is set on the roof curb.

If electric and control wiring is to be routed through the basepan, attach the accessory thru-the-base service connections to the basepan in accordance with the accessory installation instructions.

Slab Mount (Horizontal Units Only) —

Provide a level concrete slab that extends a minimum of

6in. (150 mm) beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if required.

Alternate Unit Support (In Lieu of Curb or Slab Mount) —

A non-combustible sleeper rail can be used in the unit curb support area. If sleeper rails cannot be used, support the long sides of the unit with a minimum of 3 equally spaced 4-in. x 4-in. (102 mm x 102 mm) pads on each side.

50TCQA

Table 1 – Operating Weights

50TCQA

 

 

 

 

UNITS LB (KG)

 

 

 

 

 

 

 

 

 

Component

A04

A05

 

A06

A07

 

 

 

 

 

 

 

 

 

 

Base Unit

505

(229)

510

(231)

 

590

(268)

630

(286)

 

 

 

 

 

 

 

 

 

 

Economizer

 

 

 

 

 

 

 

 

 

Vertical

80

(36)

80

(36)

 

80

(36)

80

(36)

Horizontal

105 (48)

105 (48)

 

105 (48)

105 (48)

 

 

 

 

 

 

 

 

 

 

Powered Outlet

32

(15)

32

(15)

 

32

(15)

32

(15)

 

 

 

 

 

 

 

 

 

 

Curb

 

 

 

 

 

 

 

 

 

14--- in/356 mm

110 (50)

110 (50)

 

110 (50)

110 (50)

24--- in/610 mm

145 (66)

145 (66)

 

145 (66)

145 (66)

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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 DuctworkInstall Outside Air Hood Ductwork when requiredEconomizer Hood Removal and Setup Factory Option Convert to Horizontal and ConnectDamper 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 DisconnectSplice BLU + Factory-Option Thru-Base Connections460 480 H2 + H3 575 600Heat Anticipator Settings Field Control WiringUnits without Thru-Base Connections ThermostatHeater 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 Color Code Recommendations Recommended Cables2413 or American A22503 Belden 8772 Columbia 02525RTU-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 StatusCommunication Wiring Protocols General Power Exhaust outputDS = Dip Switch BACnet MS/TP SW3 example shown Remote OccupancyRTU-MP Troubleshooting Communication LEDs Local AccessController SystemLEDs LEDs on the RTU-MP show the status of certain functionsSmoke Detector Locations Controller AssemblyTypical Return Air Detector Location Completing Installation of Return Air Smoke SensorUnit Wire/MOCP Sizing Data 56/59 Pwrd C.O65/69 74/8044/46 74/7949/52 79/8679/85 61/6455/58 72/7879/84 70/7469/75 43/4684/90 75/7952/54 61/6557/61 47/5070/76 82/9062/66 53/5576/82 88/95Smoke 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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