Guide specifications

Packaged Electric Cooling Units

Constant Volume Application

HVAC Guide Specifications

Size Range: 2 to 5 Tons, Nominal Cooling

Carrier Model Number: 50XP

Part 1—General

SYSTEM DESCRIPTION

Outdoor rooftop or ground mounted, electric cooling unit utilizing a hermetic compressor for cooling duty and optional electric heating. Unit shall discharge sup- ply air vertically or horizontally as shown on contract drawings. Condenser fan/coil section shall have a draw-thru design with vertical discharge for minimum sound levels.

QUALITY ASSURANCE

A. Unit shall be rated in accordance with ARI Standards 210/240-94 and 270-95.

B. Unit shall be designed in accordance with UL Standard 1995.

C. Unit shall be manufactured in a facility registered to ISO 9001 manufacturing quality standard.

D. Unit shall be UL listed and c-UL certified as a total package for safety requirements.

E.Roof curb shall be designed to conform to NRCA Stan- dards.

F.Insulation and adhesives shall meet NFPA 90A re- quirements for flame spread and smoke generation.

G.Cabinet insulation shall meet ASHRAE Standard 62P.

DELIVERY, STORAGE AND HANDLING

Unit shall be stored and handled per manufacturer’s recommendations.

Part 2 — Products

EQUIPMENT

A.General:

Factory-assembled, single-piece, cooling unit. Con- tained within the enclosure shall be all factory wiring, piping, controls, refrigerant charge (R-410A), and spe- cial features required prior to field start-up.

B.Unit Cabinet:

1.Unit cabinet shall be constructed of phosphated, zinc-coated, pre-painted steel capable of withstand- ing 500 hours of salt spray.

2.Normal service shall be through a single removable cabinet panel.

3.The unit shall be constructed on a rust proof base- pan that has an externally trapped, integrated sloped drain pan.

4.Evaporator fan compartment top surface shall be in- sulated with a minimum 1/2-in. thick, flexible fiber- glass insulation, coated on the air side and retained by adhesive and mechanical means. The evaporator wall sections will be insulated with a minimum semi-rigid foil-faced board capable of being wiped clean. Aluminum foil-faced fiberglass insulation shall be used in the entire indoor air cavity section.

5.Unit shall have a field-supplied condensate trap.

C.Fans:

1.The evaporator fan shall be direct-drive variable speed motor and control, as shown on equipment drawings.

2.Fan wheel shall be made from steel, and shall be double-inlet type with forward curved blades with corrosion resistant finish. Fan wheel shall be dy- namically balanced.

3.Condenser fan shall be direct drive propeller type with aluminum blades riveted to corrosion resistant steel spiders, be dynamically balanced, and dis- charge air vertically.

D.Compressor:

1.Fully hermetic compressors with factory-installed vibration isolation.

2.Scroll compressors shall be standard on all units.

E.Coils:

Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless copper tubes with all joints brazed. (Copper/copper and vinyl- coated construction available as option.) Tube sheet openings shall be belled to prevent tube wear.

F.Refrigerant Metering Device:

Refrigerant metering device shall be of the TXV type.

G.Filters:

Filter section shall consist of field-installed, throw- away, 1-in. thick fiberglass filters of commercially available sizes.

H.Controls and Safeties:

1.Unit controls shall be complete with a self-con- tained low voltage control circuit.

2.Units shall incorporate an internal compressor pro- tector that provides reset capability.

3.Unit shall provide High and Low/Loss-of-Charge Pressure Safety Protection.

I.Operating Characteristics:

1.Unit shall be capable of starting and running at 125°F ambient outdoor temperature, exceeding maximum load criteria of ARI Standard 210.

2.Compressor with standard controls shall be capable of operation down to 55° F ambient outdoor temperature.

3.Indoor Fan on/off delay profile is selected (for cool- ing) on the Easy Select™ Board.

J.Electrical Requirements:

All unit power wiring shall enter the unit cabinet at a single location.

K.Motors:

1.Compressor motors shall be of the refrigerant- cooled type with line-break thermal and current overload protection.

2.All fan motors shall have permanently lubricated bearings, and inherent, automatic reset, thermal overload protection.

3.Condenser fan motor shall be totally enclosed.

50XP

13 50XP specifications

The Carrier 13 50XP is a central air conditioning unit known for its reliability, efficiency, and advanced technology features. Designed for residential and light commercial applications, this system stands out in the HVAC market for its performance and durability.

One of the primary features of the Carrier 13 50XP is its high energy efficiency. The unit has a SEER (Seasonal Energy Efficiency Ratio) rating of up to 14, making it a cost-effective option for homeowners looking to reduce energy consumption. This efficiency is crucial as it translates to lower utility bills and a reduced carbon footprint.

The Carrier 13 50XP incorporates the innovative WeatherShield cabinet, which enhances durability against the elements. This robust housing protects internal components from harsh weather conditions, ensuring reliable performance over time. The all-aluminum coil design further enhances its resistance to corrosion while maximizing heat exchange efficiency.

In terms of comfort control, the system is compatible with various thermostat options, including smart thermostats, providing homeowners with the convenience of monitoring and adjusting temperatures from anywhere. The multi-speed blower provides an added layer of comfort by optimizing humidity control and air distribution throughout the space.

The unit is equipped with sound-dampening technology, which minimizes operational noise, making it a quiet choice for residential areas. This feature is essential for maintaining a peaceful home environment, particularly in bedrooms or family rooms.

Additionally, the Carrier 13 50XP utilizes R-410A refrigerant, which is designed to be environmentally friendly. R-410A is less harmful to the ozone layer than older refrigerants, complying with current environmental regulations and contributing to sustainable living practices.

The installation process for the Carrier 13 50XP is straightforward, thanks to its compact design and flexible configurations. The unit is also backed by Carrier's reliable warranty options, providing peace of mind for consumers.

In summary, the Carrier 13 50XP is a well-rounded air conditioning solution that combines energy efficiency, durability, and advanced technology features. Its commitment to environmental responsibility and user comfort makes it a valuable addition to any home or small commercial setting, ensuring reliable cooling performance for years to come.