Trane XL20i 4TTZ0024A1 - User Manual

XL20i
4TTZ0024, 036, 048 & 060
with ComfortLink™ II and Charge Assist™
2, 3, 4 & 5 Tons
Split System
Cooling
Product Data
PUB. NO. 22-1825-09

Summary

Features and Benefits

General Data

Product Specifications

Core technical specifications including electrical, capacity, and physical attributes of the models.

A-weighted Sound Power Level

Sound power levels for different models across various frequency bands.

Accessory Description and Usage

Explains the purpose and application of various optional accessories.

AHRI Standard Capacity Rating Conditions

Details the standard conditions used for rating cooling and heating capacities.

Model Nomenclature

Electrical Data

Schematic Diagrams

Wiring diagrams illustrating the electrical connections for the units.

Legend and Symbols

Explanation of wire colors, symbols, and component abbreviations used in diagrams.

Dimensions

4 TTZ0 Outline Drawing

Provides a visual representation of the unit with key dimensions and clearances.

Mechanical Specification Options

General

Unit overview, outdoor operation, certifications, and casing details.

Compressor

Details on dual Climatuff® compressors, modulation, protection, and motor features.

Comfort Control

Describes the ComfortLink™ II digital communication and Plug-n-Play setup.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

This document describes the Trane XL20i split system cooling unit, a high-efficiency outdoor air conditioner designed for residential and light commercial applications. It is available in 2, 3, 4, and 5-ton capacities and incorporates advanced technologies for enhanced performance, comfort, and ease of maintenance.

Function Description

The XL20i is a split system cooling unit, meaning it works in conjunction with an indoor air handler or furnace coil to provide air conditioning. Its primary function is to extract heat from the indoor air and release it outdoors, thereby cooling the living or working space. The unit utilizes R-410A refrigerant, an environmentally friendly hydrofluorocarbon.

A key feature of the XL20i is its two CLIMATUFF® compressors, which enable 50% and 100% capacity modulation. This means the unit can operate at two different cooling levels, allowing it to precisely match the cooling demand of the space. During milder conditions, it can run at 50% capacity, saving energy and providing quieter operation. When the demand for cooling is higher, it can switch to 100% capacity for maximum comfort. This modulation capability contributes to its high efficiency, achieving up to 20 SEER (Seasonal Energy Efficiency Ratio).

The unit is designed for low ambient cooling, capable of operating down to 55°F as shipped, which can be useful in certain climates or for specific applications requiring cooling even when outdoor temperatures are not extremely high. For even lower ambient cooling requirements, an application guide is available.

The XL20i integrates with Trane's ComfortLink™ II system, a sophisticated two-wire control connection that simplifies installation and enhances communication between the outdoor unit and the indoor section. This system allows for Plug-n-Play setup, streamlining the installation process and ensuring optimal system performance.

Usage Features

The XL20i is engineered to provide reliable and comfortable cooling with several features aimed at enhancing the user experience.

• Quiet Operation: The unit is designed for low sound levels, incorporating an advanced fan system and a compressor sound insulator. This minimizes operational noise, contributing to a more peaceful outdoor environment and less disturbance indoors.
• Durable Construction: The cabinet is built with heavy-gauge, G60 galvanized steel and coated with a weather-resistant powder paint on all louvers and panels, ensuring long-term durability and protection against corrosion and weather elements. The DURATUFF™ base is also weather-proof and designed for fast, complete drainage.
• Coil Protection: The all-aluminum SPINE FIN™ coil, known for its efficient heat transfer, is protected on all four sides by louvered panels, safeguarding it from external damage while maintaining airflow.
• WeatherGuard™ II Top and Fasteners: The WEATHERGUARD™ II top shields the unit from the elements, and WEATHERGUARD™ fasteners are used throughout for added resilience.
• Variable Speed Fan Motor: The variable speed fan motor further contributes to efficient operation and precise airflow control, optimizing comfort and energy use.
• Comfort-R™ Mode Approved: The unit is approved for Comfort-R™ mode, a feature that helps manage humidity levels in the home, providing enhanced comfort during humid conditions.
• XL Seacoast Shield: For installations in coastal areas prone to corrosive salt air, the XL Seacoast shield provides additional protection against corrosion.
• Compressor Sump Heat: This feature helps protect the compressor in colder conditions, ensuring smooth startups and extending its lifespan.
• Electronic Compressor Control: This advanced control system optimizes compressor operation for efficiency and reliability.

Maintenance Features

Ease of maintenance is a significant aspect of the XL20i's design, incorporating features that simplify servicing and ensure long-term performance.

• QUICK-SESS™ Cabinet: The QUICK-SESS™ cabinet design provides easy service access to internal components and refrigerant connections, facilitating quicker and more efficient maintenance procedures. This design also ensures full coil protection during servicing.
• Charge Assist™: This innovative feature provides fast and accurate charging every time, simplifying the refrigerant charging process for technicians and ensuring the system operates at optimal levels. The unit indicates its system charge status, aiding in diagnostics.
• Liquid Line Filter/Drier: A factory-installed liquid line filter/drier is standard, which helps remove moisture and contaminants from the refrigerant system, protecting critical components and extending the system's life.
• Service Valve Cover: A service valve cover is included, providing protection for the service valves and preventing accidental damage or tampering.
• Internal Compressor Protection: The compressors are equipped with internal high/low pressure and temperature protection, safeguarding them from extreme operating conditions and contributing to their longevity.
• Start Kit Standard: A start kit is included as standard, which can be beneficial for reliable compressor startup, especially in certain electrical conditions.
• Tarpaulin Gray Cabinet with Anthracite Gray Top: The aesthetic design with a tarpaulin gray cabinet and anthracite gray top not only provides a modern look but also uses durable finishes that are easy to clean and maintain.
• S.E.E.T. Design Testing: The unit undergoes S.E.E.T. (System Environmental Endurance Testing) design testing, ensuring its reliability and performance under various environmental conditions, which translates to fewer maintenance issues over time.
• 100% Line Run Test: Each unit undergoes a 100% line run test at the factory, verifying its operational integrity before shipment and reducing the likelihood of field issues.
• Optional Accessories for Specific Needs:
  • Rubber Isolator Kit: Available to isolate the condensing unit from transmitting energy into the mounting frame or pad, minimizing sound transmission in sensitive applications.
  • Snow Leg - Base & Cap 4" High / 4" Extension: These accessories elevate the unit, protecting it from snow accumulation and improving airflow in winter conditions.
  • Extreme Condition Mounting Kit: Bracket kits are available to securely mount the condensing unit to a frame or pad without removing any panels, useful in areas with high winds or on commercial rooftops.
  • 24 Volt Wiring Harness: Facilitates wiring a communicating outdoor unit to an existing 24 Volt indoor section.
  • Auto Charge Solenoid Kit: Further enhances the fast and accurate charging capabilities.

The XL20i is designed with an emphasis on both advanced performance and user-friendly maintenance, aiming to provide a reliable, efficient, and comfortable cooling solution for years to come.

Trane XL20i 4TTZ0024A1 Specifications