Lenox 506637-01 installation instructions Maintenance, Unit Components, Indoor Unit, Indoor Coil

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UNIT COMPONENTS

IMPORTANT

Some scroll compressor have internal vacuum protector that will unload scrolls when suction pressure goes below 20 psig. A hissing sound will be heard when the compressor is running unloaded. Protector will reset when low pressure in system is raised above 40 psig. DO NOT REPLACE COMPRESSOR.

The outdoor unit and indoor blower cycle on demand from the room thermostat. When the thermostat blower switch is in the ON position, the indoor blower operates continuously.

High Pressure Switch (S4)

XC16 units are equipped with a high-pressure switch that is located in the liquid line of the compressor as illustrated in Unit Dimensions on page 2. The switch is a Single Pole, Single Throw (SPST), manual−reset switch with red cap that is normally closed and removes power from the compressor when discharge pressure rises above factory setting at 590 + 10 psi.

Low Pressure Switch (S87)

XC16 units are also equipped with a low pressure switch that is located in the vapor line of the compressor. The switch (SPST, auto−reset, normally closed) removes power from the compressor when vapor line pressure drops below factory setting at 40 + 5 psi.

Crankcase Thermostat (S40) (−048 and −060 Units

Only)

Compressor in the XC16−048 and −060 units are equipped with a 70 watt, belly band type crankcase heater. HR1 prevents liquid from accumulating in the compressor. HR1 is controlled by a thermostat located on the liquid line. When liquid line temperature drops below 50° F the thermostat closes energizing HR1. The thermostat will open, de−energizing HR1 once liquid line temperature reaches 70° F .

Liquid Line Filter Drier

A filter drier is factory-installed as illustrated in Unit Dimensions on page 2, with each XC16 unit to ensure a clean, moisture−free system. A replacement filter drier is available from Lennox. Refer to Lennox Repair Part Program.

Maintenance

4.Check wiring for loose connections.

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

6.Check amp−draw outdoor fan motor.

UNIT NAMEPLATE: _________ ACTUAL: __________

NOTE − If owner reports insufficient cooling, the unit should be gauged and refrigerant charge checked.

Outdoor Coil

It may be necessary to flush the outdoor coil more frequently if it is exposed to substances which are corrosive or which block airflow across the coil (e.g., pet urine, cottonwood seeds, fertilizers, fluids that may contain high levels of corrosive chemicals such as salts)

SOutdoor Coil door coil may be flushed with a water hose.

SOutdoor Coil (Sea Coast) air in ocean

locations can carry salt, which is corrosive to most metal. Units that are located near the ocean require frequent inspections and maintenance. These inspections will determine the necessary need to wash the unit including the outdoor coil. Consult your installing contractor for proper intervals/procedures for your geographic area or service contract.

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. Refer to the unit information service manual for pressure drop tables and procedure.

3.Check blower drive belt for wear and proper tension.

4.Check all wiring for loose connections

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

6.Check amp−draw on blower motor.

UNIT NAMEPLATE: _________ ACTUAL: __________

INDOOR COIL

1.Clean coil, if necessary.

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

3.Check condensate line and clean, if necessary.

TWO−STAGE COMPRESSOR CHECKS

Use the checklist procedure on page 28, to verify part-load and full-load capacity operation of two-stage modulation compressors.

DEALER

Maintenance and service must be performed by a qualified installer or service agency. At the beginning of each cooling season, the system should be checked as follows:

Outdoor Unit

1.Clean and inspect the outdoor coil. The coil may be flushed with a water hose. Ensure the power is turned off before you clean the coil.

2.Outdoor fan motor is prelubricated and sealed. No further lubrication is needed.

3.Visually inspect connecting lines and coils for evidence of oil leaks.

IMPORTANT

This performance check is ONLY valid on systems that have clean indoor and outdoor coils, proper airflow over coils, and correct system refrigerant charge. All components in the system must be functioning proper to correctly perform compressor modulation operational check. (Accurate measurements are critical to this test as indoor system loading and outdoor ambient can affect variations between low and high capacity readings).

Tools Required

SRefrigeration gauge set

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506637−01 11/10

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Contents Shipping and Packing List Table of ContentsGeneral AIR ConditionerSide View Unit Dimensions − Inches mmModel Number Identification XXX 230 TOP ViewControl Panel Plumbing and Switches ComponentsTypical Unit Parts Arrangement Operating Service Valves Operating Gauge Set and Service ValvesUsing Manifold Gauge SET Torque RequirementsTo Access Service Port Operating Angle Type Service ValveOperating Ball Type Service Valve Reinstall Stem CapRecovering Refrigerant Recovering Refrigerant from Existing SystemRefrigerant from System 1DISCONNECT Power 2CONNECT Manifold Gauge SETPositioning Considerations New Outdoor Unit PlacementClearance on ALL Sides Placing Unit on SlabDetail a Outside Unit Placement Placement, Slab Mounting and Stabilizing UnitRoof Mounting Removing and Installing PanelsLouvered Panel Installation Louvered Panel RemovalRefrigerant Line Set New or Replacement Line SetRefrigerant Line SET Refrigerant Line SET From Vertical to Horizontal Refrigerant Line SET Alling Horizontal RunsBrazing Connections Brazing Procedures 1CUT and Debur6BRAZE Line SET Wrap Service ValvesFlow Nitrogen 7PREPARATION for Next StepInstalling Indoor Expansion Valve Flushing Line Set and Indoor CoilSensing Bulb Installation Installing Indoor Metering DeviceIndoor Expansion Valve Installation Equalizer Line InstallationLeak Test Line Set and Indoor Coil Leak TestEvacuating Line Set and Indoor Coil Evacuating SystemElectrical Size Circuit and Install Disconnect2INSTALL Thermostat 24VAC TransformerTypical Unit Wiring Diagram Servicing Units Delivered Void of Charge Unit Start−UpSystem Refrigerant Connections for Testing and ChargingWhen to CHARGE? RequirementsCalculating System Charge for Outdoor Unit Void of Charge Checking AIR Flow AT Indoor CoilWeigh in Charging Method Above BelowSystem Operation TWO−STAGE CompressorIndoor Unit MaintenanceUnit Components Indoor CoilHomeowner Compressor Start−Up and Performance ChecklistTemperature Outdoor Unit FAN Motor

Elite Series X16 Air Conditioner Units, 506637-01 specifications

The Lenox 506637-01, Elite Series X16 Air Conditioner is a top-tier cooling solution that stands out in the residential HVAC market. Known for its impressive energy efficiency and advanced features, this unit is designed to provide homeowners with exceptional comfort while also keeping energy bills in check.

One of the main highlights of the Elite Series X16 is its SEER rating, which stands at an impressive 16. This makes it one of the most energy-efficient air conditioning systems available, ensuring that it operates effectively without consuming excessive power. By converting less energy into cooling, homeowners can enjoy lower utility bills and a reduced carbon footprint.

The X16 model features a two-stage cooling system, which allows for better humidity control and more even temperature distribution throughout the home. Unlike standard single-stage units that operate at full capacity at all times, the two-stage system enables the air conditioner to run at a lower, more efficient speed for the majority of its operation, only ramping up when additional cooling is needed. This not only enhances comfort but also extends the lifespan of the unit.

Incorporating advanced technology, the Elite Series X16 utilizes a high-efficiency scroll compressor and innovative airflow design. This results in quieter operation, providing a peaceful indoor environment. The noise levels are minimal, making it suitable for nighttime use or for homes where noise might be a concern.

The air conditioner is built with durability in mind, featuring a robust cabinet that protects against the elements and potential wear and tear over time. Its louvered design provides additional protection for critical components, ensuring longevity and consistent performance.

Furthermore, the X16 is compatible with smart thermostats and home automation systems, allowing homeowners to optimize their cooling schedules remotely. This connectivity helps users make informed decisions about energy usage, further enhancing efficiency while providing ultimate control over home comfort.

In summary, the Lenox 506637-01, Elite Series X16 Air Conditioner provides an excellent blend of energy efficiency, advanced technology, and a focus on comfort and durability. With its two-stage cooling system, high SEER rating, and quiet operation, it is an ideal choice for those seeking a reliable, high-performance cooling solution for their homes.