Lennox International Inc Dave Lennox Signature Collection XC21 System installation instructions

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E2012 Lennox Industries Inc.

Dallas, Texas, USA

THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE

WARNING

The State of California has determined that this product may contain or produce a chemical or chemicals, in very low doses, which may cause serious illness or death. It may also cause cancer, birth defects, or reproductive harm.

General

This XC21 outdoor unit is designed for use with HFC−410A refrigerant only. This unit must be installed with an ap- proved indoor unit. See the Lennox XC21 Product Specifi- cations bulletin (EHB) for approved indoor component match ups.

These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before installation.

INSTALLATION

INSTRUCTIONS

Dave Lennox Signature® Collection XC21 System

AIR CONDITIONERS

 

506923−01

 

7/2012

Litho U.S.A.

Supersedes 4/2012

 

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal inju- ry or loss of life.

Installation and service must be performed by a licensed professional installer (or equivalent) or service agency.

CAUTION

Before attempting to perform any service or mainte- nance, turn the electrical power to unit OFF at discon- nect switch.

NOTICE !

For more in−depth information, consult the Installa- tion and Service Procedures manual, available as Corp.1007−L2 on DaveNet or through the Technical Support department at 800−453−6669.

STEP 1 −− SETTING THE UNIT −− Clearances

CLEARANCE ON ALL SIDES

6 (152)

CONTROL

PANEL ACCESS

NOTES:

S

Clearance to access panel must be 30

 

inches (762mm).

S

Clearance to one of the other three

MINIMUM CLEARANCE

ABOVE UNIT

48 (1219)

12 (305)

LOCATION 30 (762)

sides must be 36 inches (914mm).

S Clearance to one of the remaining two

sides may be 12 inches (305mm) and

the final side may be 6 inches

(152mm).

36 (914)

MINIMUM CLEARANCE BETWEEN TWO UNITS

ACCESS PANEL

24

(610)

LINE SET CONNECTIONS

 

 

REAR VIEW OF UNIT

 

FIGURE 1

 

7/2012

Page 1

506923−01

*2P72012*

*P506923-01*

 

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Contents General −− Setting the Unit −− ClearancesUnit Dimensions − Inches MM −− Setting the Unit −− Unit PlacementAccess View Side ViewStabilizing Unit on Uneven Surfaces PlacementSlab Mounting Refrigerant Line SETPressor Stub END Distributor Tubes TWO−PIECE Patch Plate Liquid Line Service ValveUncased Coil only ExpansionCAP and Core Removal −− Refrigerant Piping −− Brazing ProceduresFlow Nitrogen Wrap Service ValvesBraze Line SET 7PREPARATION for Next StepSensing Bulb Installation Indoor Expansion Valve InstallationEqualizer Line Installation Lowhigh Manifold Gauge SET Outdoor Unit To Vapor −− Leak Test and EvacuationLOW High −− Leak Test and EvacuationSAE TEE with Swivel Coupler Minimum 3/8 HoseSize Circuit and Install Disconnect 1SWITCH −− Electrical −− Circuit Sizing and Wire Routing2INSTALL Thermostat 24VAC TransformerRoute Control Wires Ting 3A. Route Control Wires Ting4ROUTE High Voltage and Ground Wires Wiring Entry PointsJ3 ALL Units −− Electrical −− Outdoor Control A175 Jumpers and TerminalsHP only J4 TWO−STAGE Heat Pump only J2Flat metal jumper −− Electrical −− Field Control WiringOn−board link Procedure Start−Up ChecklistsCharging TWO−STAGE Compressor PerformanceXC21 Field Operational Checklist Heating Mode Cooling ModeSTART−UP Checks SubcoolingOutdoor Coil Homeowner Information

Dave Lennox Signature Collection XC21 System, XC21 specifications

Lennox International Inc. has long been synonymous with innovative heating and cooling solutions. One of the standout products in their lineup is the Dave Lennox Signature Collection XC21 System, a central air conditioning unit renowned for its remarkable efficiency, advanced technology, and superior performance.

The XC21 features Lennox’s proprietary Signature Series components, ensuring that homeowners receive top-tier comfort with energy-saving capabilities. One of the main highlights of the XC21 is its impressive SEER (Seasonal Energy Efficiency Ratio) rating of up to 21. This high rating signifies exceptional energy efficiency, allowing homeowners to save significantly on energy bills while maintaining a comfortable indoor environment.

One of the key technologies incorporated into the XC21 is the variable-speed compressor. This feature enables the system to adjust its cooling output in response to the current temperature and humidity levels, providing optimal comfort without excessive energy consumption. The variable-speed operation allows for quieter performance, with sound levels as low as 65 decibels, making it one of the quietest systems available.

Furthermore, the XC21 is designed with the Advanced Energy Efficiency feature, which enhances its capability to regulate energy usage intelligently. This is complemented by the Smart Away feature, allowing the unit to enter energy-saving mode when the homeowner is away, ensuring that no energy is wasted during times of inactivity.

Additionally, the XC21 is built with durable and high-quality materials, including a galvanized steel cabinet that resists rust and corrosion, ensuring longevity and consistent performance in varied weather conditions. It also includes a unique design that allows for easier maintenance and serviceability, minimizing downtime and repair costs.

The XC21 system is compatible with the iComfort S30 smart thermostat, which offers advanced climate control capabilities through Wi-Fi connectivity. This feature allows users to manage their home’s heating and cooling system remotely, providing convenience and enhancing energy efficiency.

In summary, the Dave Lennox Signature Collection XC21 System exemplifies Lennox International Inc.’s commitment to cutting-edge technology, energy efficiency, and customer satisfaction. Its innovative features, high energy efficiency ratings, and user-friendly characteristics make it an excellent choice for homeowners looking to enhance their comfort while reducing energy expenses.
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