Lennox International Inc 2SCU13 warranty Installation and Maintenance Instructions

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INSTALLATION AND MAINTENANCE

INSTRUCTIONS

2SCU13 Series

Split System Air Conditioner

WARNING

The equipment covered in this manual is to be installed by trained and experienced service and installation technicians. Improper installation, modification, service, or use can cause electrical shock, fire, explosion, or other conditions which may cause personal injury, death, or property damage. Use appropriate safety gear including safety glasses and gloves when installing this equipment.

WARNING

Risk of electrical shock. Disconnect all remote power supplies before installing or servicing any portion of the system. Failure to disconnect power supplies can result in property damage, personal injury, or death.

WARNING

Installation and servicing of air conditioning equipment can be hazardous due to internal refrigerant pressure and live electrical com- ponents. Only trained and qualified service personnel should install or service this equip- ment. Installation and service performed by unqualified persons can result in property damage, personal injury, or death.

WARNING

Sharp metal edges can cause injury. When installing the unit, use care to avoid sharp edges.

TABLE OF CONTENTS

 

INSTALLATION

2

START-UP

10

OPERATION

14

MAINTENANCE

14

CONNECTION DIAGRAMS

16

WARRANTY

18

Manufactured By

A.A.C.

A Lennox International Inc. Company

421 Monroe Street

Bellevue, OH 44811

*48283B006*

Save these instructions for future reference

# 48283B006

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Contents Table of Contents Installation and Maintenance InstructionsInstallation Clearances InstallationTorque Table Slab MountingSlab Mounting Electrical WiringWind Barrier Construction Thermostat DesignationsInstalling Refrigerant Line Outside Unit Placement InstallationBrazing Connection Procedure Refrigerant Line Set DiametersRefrigerant Line Sets Transition from Vertical to Horizontal Refrigerant Line Sets Installing Horizontal RunsFixed Orifice Systems Refrigerant Metering DeviceExpansion Valve Systems To Access the Schrader Port Metering Device InstallationTo Open Liquid or Suction Line Service Valve Fixed Orifice DataTo Close Liquid or Suction Line Service Valve Ball Type Service Valve Valve OpenSuction Line Ball Type Service Valve Leak TestingEvacuation START-UP Refrigerant Charge AdjustmentRefrigerant Charging Subcooling Values for Fixed Orifice or TXV Systems Charge Using Weigh-In Method Fixed Orifice/TXV SystemsOutdoor Liquid Subcooling ±1F Temp Approach Values for TXV Systems Check Charge Using Normal Operating PressuresOutdoor Ambient Temp Superheat ModelFixed Orifice RFC Normal Operating PressuresOperation MaintenanceIndoor Coil 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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