50XT

for protection against damage. The outdoor coil is internally mounted on the top tier of the unit. Copper fin coils and pre-coated fin coils are available from the factory by special order. These coils are recommended in applications where aluminum fins are likely to be damaged due to corrosion. They are ideal for seacoast applications.

Thermostatic expansion valve (TXV) —Ahard-shutoff, balance port TXV maintains a constant superheat at the evaporator exit (cooling cycle) resulting in higher overall system efficiency.

High- and low-pressure switches give added safety and reliability to the compressor.

Low sound ratings ensure a quiet indoor and outdoor environment with sound ratings as low as 75 dBA.

Easy to service cabinets provide easy single-panel accessibility to serviceable components during maintenance and installation. The basepan, with integrated drain pan, provides easy ground level installation with or without a mounting pad. Convenient handholds are provided to manipulate the unit on the job site. A nesting feature ensures a positive basepan to roof curb seal when the unit is

roof mounted. A convenient 3/4-in. wide perimeter flange makes frame mounting on a rooftop easy.

Louvered grille provides hail and vandalism protection for the coil.

Cabinets are constructed of heavy-duty, phosphated, zinc-coated, pre-painted steel capable of withstanding 500 hrs of salt spray. Interior surfaces of the evaporator and electric heater compartments are insulated with cleanable, semi-rigid insulation board, which keeps the conditioned air from being affected by the outdoor ambient temperature and provides improved indoor air quality. (Conforms to American Society of Heating, Refrigeration and Air Conditioning Engineers No. 62P.) The sloped drain pan minimizes standing water in the unit, which is provided with an external drain.

Short-cycling protection for the compressor is incorporated into our Infinity heat pump/air conditioner dual capacity control board ensuring a five-minute delay before restarting compressor after shutdown for any reason.

Limited Warranty—Standard 5-year limited warranty on all parts and 10-year limited warranty on compressor.

TABLE OF CONTENTS

FEATURES/BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ARI CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 BASE UNIT DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 ACCESSORY DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SELECTION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-30 TYPICAL PIPING AND WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 TYPICAL WIRING SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-37

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50XT specifications

The Carrier 50XT series represents a significant advancement in commercial rooftop air conditioning systems, delivering robust performance and energy efficiency for a variety of applications. Designed primarily for light commercial buildings, these units are a preferred choice for their reliability and advanced features.

One of the standout features of the Carrier 50XT is its energy efficiency. The system boasts a high Seasonal Energy Efficiency Ratio (SEER), which translates to reduced operational costs and a lower environmental impact. This efficiency is further enhanced by the use of variable speed scroll compressors, which adjust their speed based on the cooling demand, ensuring optimal performance while consuming less energy.

The 50XT series is equipped with an advanced microprocessor control system that allows for precise management of the unit’s operations. This smart technology facilitates easy integration with building management systems, enabling real-time monitoring and control. Additionally, the control system provides diagnostic capabilities, making maintenance and troubleshooting more straightforward and efficient.

The unit also features an innovative air distribution system that enhances indoor air quality. With the inclusion of advanced filtration options, the Carrier 50XT effectively reduces airborne pollutants and allergens, contributing to a healthier indoor environment. The design ensures optimized airflow and temperature control, making it suitable for a wide range of commercial settings.

Durability is another hallmark of the Carrier 50XT, which is constructed with robust materials resists corrosion and ensures a long operational life. The units are designed to withstand harsh environmental conditions, making them a reliable choice for various climates.

Furthermore, the Carrier 50XT series supports various refrigerants, including R-410A, which is known for its lower environmental footprint. This adaptability not only meets current regulatory standards but also positions the units as forward-thinking solutions for the evolving landscape of HVAC technology.

In conclusion, the Carrier 50XT series combines cutting-edge technology, energy efficiency, and durability, making it an ideal choice for light commercial applications. With features designed to enhance performance and comfort, as well as environmentally responsible operation, the 50XT units stand out as a smart investment for any commercial building.
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