Lennox International Inc Dave Lennox Signature Collection XC21 System Homeowner Information

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Homeowner Information

CAUTION

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

Cleaning of the outdoor unit’s coil should be performed by a licensed professional service technician (or equivalent). Contact your dealer and set up a schedule (preferably twice a year, but at least once a year) to inspect and ser- vice your outdoor unit. The following maintenance may be performed by the homeowner.

IMPORTANT !

Sprinklers and soaker hoses should not be installed where they could cause prolonged exposure to the outdoor unit by treated water. Prolonged exposure of the unit to treated water (i.e., sprinkler systems, soakers, waste water, etc.) will corrode the surface of steel and aluminum parts, diminish performance and affect longevity of the unit.

Outdoor Coil

The outdoor unit must be properly maintained to ensure its proper operation.

SPlease contact your dealer to schedule proper inspec- tion and maintenance for your equipment.

SMake sure no obstructions restrict airflow to the outdoor unit.

SGrass clippings, leaves, or shrubs crowding the unit can cause the unit to work harder and use more energy.

SKeep shrubbery trimmed away from the unit and periodi- cally check for debris which collects around the unit.

SKeep snow level below the louvered panels to ensure proper performance.

Routine Maintenance

In order to ensure peak performance, your system must be properly maintained. Clogged filters and blocked airflow prevent your unit from operating at its most efficient level.

NOTE The filter and all access panels must be in place any time the unit is in operation. If you are unsure about the filter required for your system, call your Lennox dealer for assistance.

1.Ask your Lennox dealer to show you where your indoor unit’s filter is located. It will be either at the indoor unit (installed internal or external to the cabinet) or behind a return air grille in the wall or ceiling. Check the filter monthly and clean or replace it as needed.

2.Disposable filters should be replaced with a filter of the same type and size.

3.The indoor evaporator coil is equipped with a drain pan to collect condensate formed as your system removes humidity from the inside air. Have your dealer show you the location of the drain line and how to check for obstructions. (This would also apply to an auxiliary drain, if installed.)

Thermostat Operation

See the ComfortSense® 7000 or icomfortt−enabled ther- mostat homeowner manual for instructions on how to oper- ate your thermostat.

Preservice Check

If your system fails to operate, check the following before calling for service:

SVerify room thermostat settings are correct.

SVerify that all electrical disconnect switches are ON.

SCheck for any blown fuses or tripped circuit breakers.

SVerify unit access panels are in place.

SVerify air filter is clean.

SIf service is needed, locate and write down the unit model number and have it handy before calling.

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XC21 SERIES

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Contents General −− Setting the Unit −− ClearancesSide View −− Setting the Unit −− Unit PlacementUnit Dimensions − Inches MM Access ViewRefrigerant Line SET PlacementStabilizing Unit on Uneven Surfaces Slab MountingPressor Expansion Liquid Line Service ValveStub END Distributor Tubes TWO−PIECE Patch Plate Uncased Coil onlyCAP and Core Removal −− Refrigerant Piping −− Brazing Procedures7PREPARATION for Next Step Wrap Service ValvesFlow Nitrogen Braze Line SETSensing Bulb Installation Indoor Expansion Valve InstallationEqualizer Line Installation Lowhigh Manifold Gauge SET Outdoor Unit To Vapor −− Leak Test and EvacuationMinimum 3/8 Hose −− Leak Test and EvacuationLOW High SAE TEE with Swivel Coupler24VAC Transformer −− Electrical −− Circuit Sizing and Wire RoutingSize Circuit and Install Disconnect 1SWITCH 2INSTALL ThermostatWiring Entry Points 3A. Route Control Wires TingRoute Control Wires Ting 4ROUTE High Voltage and Ground WiresTWO−STAGE Heat Pump only J2 −− Electrical −− Outdoor Control A175 Jumpers and TerminalsJ3 ALL Units HP only J4Flat metal jumper −− Electrical −− Field Control WiringOn−board link TWO−STAGE Compressor Performance Start−Up ChecklistsProcedure ChargingXC21 Field Operational Checklist Subcooling Cooling ModeHeating Mode START−UP ChecksOutdoor 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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