Lennox International Inc 06/11 50672801 installation instructions Brazing Connections

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Brazing Connections

Use the procedures outline in figures 8 and 9 for brazing line set connections to service valves.

WARNING

Polyol Ester (POE) oils used with HFC−410A refrigerant absorb moisture very quickly. It is very important that the refrigerant system be kept closed as much as possible. DO NOT remove line set caps or service valve stub caps until you are ready to make connections.

WARNING

Danger of fire. Bleeding the refrigerant charge from only the high side may result in pressurization of the low side shell and suction tubing. Application of a brazing torch to a pressurized system may result in ignition of the refrigerant and oil mixture − Check the high and low pressures before applying heat.

CAUTION

Brazing alloys and flux contain materials which are hazardous to your health.

Avoid breathing vapors or fumes from brazing operations. Perform operations only in well−ventilated areas.

Wear gloves and protective goggles or face shield to protect against burns.

Wash hands with soap and water after handling brazing alloys and flux.

IMPORTANT

Allow braze joint to cool before removing the wet rag from the service valve. Temperatures above 250ºF can damage valve seals.

IMPORTANT

Use silver alloy brazing rods with 5% minimum silver alloy for copper−to−copper brazing. Use 45% minimum alloy for copper−to−brass and copper−to−steel brazing.

WARNING

Fire, Explosion and Personal Safety

Hazard.

Failure to follow this warning could result in damage, personal injury or death.

Never use oxygen to pressurize or purge refrigeration lines. Oxygen, when exposed to a spark or open flame, can cause fire and/or an ex- plosion, that could result in property damage, personal injury or death.

WARNING

When using a high pressure gas such as dry nitrogen to pressurize a refrigeration or air conditioning system, use a regulator that can control the pressure down to 1 or 2 psig (6.9 to 13.8 kPa).

506728−01

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Contents Table of Contents Shipping and Packing ListGeneral Unit Dimensions − Inches mm Model Number Identification 13 −036 − 230 −08Side View TOP ViewPLUMBING, Switches Sensor Components Typical Unit Parts ArrangementControl Panel Operating Gauge Set and Service Valves Operating Service ValvesUsing Manifold Gauge SET Caps and Fasteners Torque RequirementsOperating Angle−Type Service Valve Operating Ball−Type Service ValveReinstall Stem Cap Recovering Refrigerant from Existing System 1DISCONNECT Power3RECOVERING Refrigerant Method Method 2 LimitationsNew Outdoor Unit Placement Detail a Outside Unit Placement Placement, Slab Mounting and Stabilizing UnitRemoving and Installing Panels Louvered Panel InstallationLouvered Panel Removal NEW or Replacement Line SET Installation Using Existing Line SETLine Set Requirements Adding Polyol Ester OIL RequirementsRefrigerant Line SET From Vertical to Horizontal Refrigerant Line SET Alling Horizontal RunsBrazing Connections 1CUT and Debur 2CAP and Core RemovalWrap Service Valves Flow Nitrogen6BRAZE Line SET Preparation for Next Step2CONNECT Gauges and Equipment for Flushing Procedure 3FLUSHING Line SETInstalling New Indoor Metering Device Indoor Expansion Valve InstallationSensing Bulb Installation Equalizer Line InstallationLeak Test Line Set and Indoor Coil Connect Gauge SETTest for Leaks Evacuating Line Set and Indoor Coil 2EVACUATE the SystemSize Circuit and Install Disconnect 2INSTALL ThermostatElectrical 24VAC TransformerTypical Unit Wiring Diagram Unit Start−Up Unit START−UPLeak CHECK, Repair and Evacuate Connect Manifold Gauge SET and WEIGH−IN ChargeConnections for Optimizing System Charge Using HFC−410A Weigh In Method Calculating System Charge for Outdoor Unit Void of ChargeOptimizing Procedure Adjusting Indoor AirflowOptimizing System Refrigerant Charge CFM =SATº LIQº SCºIf subcooling value is RefrigerantNormal Operating Pressures − Liquid +10 and Vapor +5 Psig HFC−410A Temperature F − Pressure Psig System Operation Defrost SystemDefrost Control CMC1 OFF Maintenance DealerIndoor Unit Indoor CoilXP13 Series Start−Up and Performance Checklist Installer CityJob Name Job no Date Job Location City Sequence of Operation Thermostat

LENNOX Elite Series XP13 Units HEAT PUMPS, 06/11 50672801 specifications

Lennox International Inc., a leading name in the HVAC (heating, ventilation, and air conditioning) industry, has a reputation for delivering high-quality and energy-efficient systems. One of the standout products in their lineup is the Lennox Elite Series XP13 heat pump, model number 50672801. This heat pump is designed to provide exceptional comfort throughout the year while offering efficiency and reliability that homeowners can depend on.

The Lennox Elite Series XP13 heat pump features a compact design that makes it suitable for various outdoor spaces. One of its main characteristics is its efficiency, boasting a SEER (Seasonal Energy Efficiency Ratio) rating of up to 16 and an HSPF (Heating Seasonal Performance Factor) of up to 9. This means that the XP13 can help reduce energy bills, making it an eco-friendly choice for homeowners looking to minimize their carbon footprint.

This heat pump utilizes advanced technology to ensure optimal performance. The XP13 is equipped with a scroll compressor, which operates quietly and efficiently compared to traditional compressors. This feature ensures a more reliable and consistent temperature control, which translates to enhanced comfort levels in the home. Moreover, the XP13 is designed with a sound-dampening system that reduces operational noise, making it one of the quieter options in the market.

Another key aspect of the XP13 heat pump is its innovative use of advanced coil technology. The unit's coils are made from high-grade aluminum, which promotes superior heat exchange and improves overall efficiency. In addition, the XP13 is designed with a built-in filter drier that helps remove moisture and contaminants from the refrigerant, protecting the system from potential damage and enhancing its lifespan.

The XP13 model is compatible with the iComfort S30 smart thermostat, allowing users to control their home’s temperature remotely. This smart technology provides energy-saving options and real-time updates, ensuring that homeowners can optimize their HVAC systems for both comfort and efficiency.

Overall, the Lennox Elite Series XP13 heat pump, model 50672801, exemplifies a commitment to delivering high-performance heating and cooling solutions. With its energy-efficient design, advanced technologies, and features aimed at enhancing user comfort and convenience, the XP13 remains a top choice among homeowners looking for a reliable and effective heat pump system.
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