Lennox International Inc 2SCU13 warranty Operation, Maintenance, Indoor Coil, Indoor Unit

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OPERATION

Outdoor unit and indoor blower cycle on demand from the room thermostat. When the thermostat blower switch is moved to the ON position, the indoor blower operates continuously.

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MAINTENANCE

WARNING

Before performing maintenance operations on system, turn the electric power to unit OFF at disconnect switch(es). Unit may have multiple power supplies. Electrical shock could cause personal injury or death.

Maintenance and service must be performed by a quali- fied installer or service agency.

At the beginning of each cooling season, the system should be checked as follows:

1.Clean and inspect condenser coil. Coil may be flushed with a water hose. Be sure the power is off before using water to clean the coil.

2.Outdoor fan motor is pre-lubricated and sealed. No further lubrication is needed.

3.Visually inspect connecting lines and coils for evi- dence of oil leaks.

4.Check wiring for loose connections.

5.Check for correct voltage at unit (with unit operating).

6.Check amp-draw outdoor fan motor.

Unit nameplate _________ Actual _________

NOTE – If owner complains of insufficient cooling, the unit should be gauged and refrigerant charge checked. Refer to the Refrigerant Charging section on page 10.

Indoor Coil

1.Clean coil, if necessary.

2.Check connecting lines and coils for evidence of oil leaks.

3.Check condensate pan line and clean, if necessary.

Indoor Unit

1.Clean or change filters.

2.Adjust blower speed for cooling. Measure the pressure drop over the coil to determine the correct blower CFM.

3.Belt drive blowers: Check belt for wear and proper tension.

4.Check all wiring for loose connections.

#48283B006

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Contents Installation and Maintenance Instructions Table of ContentsTorque Table InstallationInstallation Clearances Slab MountingWind Barrier Construction Electrical WiringSlab Mounting Thermostat DesignationsBrazing Connection Procedure Outside Unit Placement InstallationInstalling Refrigerant Line Refrigerant Line Set DiametersRefrigerant Line Sets Installing Horizontal Runs Refrigerant Line Sets Transition from Vertical to HorizontalExpansion Valve Systems Refrigerant Metering DeviceFixed Orifice Systems To Open Liquid or Suction Line Service Valve Metering Device InstallationTo Access the Schrader Port Fixed Orifice DataSuction Line Ball Type Service Valve Ball Type Service Valve Valve OpenTo Close Liquid or Suction Line Service Valve Leak TestingEvacuation Refrigerant Charging Refrigerant Charge AdjustmentSTART-UP Outdoor Liquid Subcooling ±1F Temp Charge Using Weigh-In Method Fixed Orifice/TXV SystemsSubcooling Values for Fixed Orifice or TXV Systems Outdoor Ambient Temp Superheat Check Charge Using Normal Operating PressuresApproach Values for TXV Systems ModelNormal Operating Pressures Fixed Orifice RFCIndoor Coil MaintenanceOperation Indoor UnitStart-Up and Performance Checklist Single Phase Wiring Diagram P/N Three Phase Wiring Diagram P/N Limited Warranty

2SCU13 specifications

Lennox International Inc. is renowned for its innovation in heating, ventilation, air conditioning, and refrigeration (HVACR) systems. One of its standout products is the 2SCU13 model, which embodies the company's commitment to energy efficiency and customer comfort. This air conditioning unit is particularly appreciated in both residential and light commercial applications for its robust performance and advanced features.

The 2SCU13 is designed with a focus on energy efficiency, boasting a SEER rating of up to 14. This not only eases the burden on utility bills but also aligns with environmentally conscious practices by reducing carbon footprints. The unit’s efficiency is further enhanced by its scroll compressor, which is known for reliable performance and quiet operation.

One of the key characteristics of the 2SCU13 is its two-stage cooling system. This technology allows the unit to operate at two different cooling capacities, adapting to varying temperature conditions. By running at a lower capacity during mild weather, the 2SCU13 minimizes energy consumption, while still ensuring optimal comfort during hotter days by ramping up to full capacity when needed. This adaptability also contributes to a more consistent temperature throughout the space being cooled.

Another notable feature is the unit's humidity control capabilities. The two-stage operation also aids in managing indoor humidity levels, making it an excellent choice for areas with high humidity. Proper humidity control not only enhances comfort but also plays a crucial role in improving indoor air quality.

The design of the 2SCU13 ensures durability and longevity. It comes equipped with a rugged cabinet that withstands the elements, along with a baked-on powder coat finish that resists rust and corrosion. The unit also includes a protective grille that serves to shield the coil from debris, further enhancing its lifespan.

With easy installation and maintenance in mind, Lennox has incorporated service-friendly features into the design of the 2SCU13. The unit includes a convenient access panel that simplifies routine checks and repairs, making it easier for homeowners and technicians alike.

Overall, Lennox International Inc. 2SCU13 represents a harmonization of efficiency, comfort, and durability, making it a noteworthy choice among HVAC systems. Its advanced technology and design features ensure that it meets the evolving needs of consumers while providing reliable performance for years to come.
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