Lennox International Inc 2SCU13 warranty Ball Type Service Valve Valve Open, Leak Testing

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Service Valve

Valve Closed

Valve Open

Figure 10

To Close Liquid or Suction Line Service Valve:

1.Remove the stem cap with an adjustable wrench.

2.Use a service wrench with a hex-head extension to turn the stem clockwise to seat the valve. Tighten firmly.

3.Replace the stem cap. Tighten finger tight, then tighten an additional 1/6 turn.

Suction Line (Ball Type) Service Valve

Suction line (ball type) service valves function the same way as the other valves; the difference is in the construc- tion (see Figure 11).

The ball valve is equipped with a service port with a factory-installed Schrader valve. A service port cap protects the Schrader valve from contamination and serves as the primary seal.

Ball Type Service Valve

(Valve Open)

Use adjustable wrench. To open, rotate stem counterclockwise 1/4 turn (90°). To close, rotate stem clockwise 1/4 turn (90°).

Figure 11

Leak Testing

After the line set has been connected to the indoor and outdoor units, the line set connections and indoor unit must be checked for leaks.

WARNING

Refrigerant can be harmful if inhaled. Refrigerant must always be used and recovered responsibly. Incorrect or irresponsible use of refrigerant can result in personal injury or death.

WARNING

Never use oxygen to pressurize refrigeration or air conditioning systems. Oxygen will ex- plode on contact with oil and could cause personal injury or death.

Using an Electronic Leak Detector

1.Connect the high pressure hose of the manifold gauge set to the suction valve service port. (Normally the high pressure hose is connected to the liquid line port; however, connecting it to the suction ports helps to protect the manifold gauge set from damage caused by high pressure.)

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Contents Installation and Maintenance Instructions Table of ContentsInstallation Installation ClearancesTorque Table Slab MountingElectrical Wiring Slab MountingWind Barrier Construction Thermostat DesignationsOutside Unit Placement Installation Installing Refrigerant LineBrazing Connection Procedure Refrigerant Line Set DiametersRefrigerant Line Sets Installing Horizontal Runs Refrigerant Line Sets Transition from Vertical to HorizontalExpansion Valve Systems Refrigerant Metering DeviceFixed Orifice Systems Metering Device Installation To Access the Schrader PortTo Open Liquid or Suction Line Service Valve Fixed Orifice DataBall Type Service Valve Valve Open To Close Liquid or Suction Line Service ValveSuction Line Ball Type 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 Check Charge Using Normal Operating Pressures Approach Values for TXV SystemsOutdoor Ambient Temp Superheat ModelNormal Operating Pressures Fixed Orifice RFCMaintenance OperationIndoor 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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