Lennox International Inc LENNOX Elite Series XP13 Units HEAT PUMPS Using HFC−410A Weigh In Method

Page 23

WEIGH−IN CHARGING

CALCULATING SYSTEM CHARGE FOR OUTDOOR UNIT VOID OF CHARGE

If the system is void of refrigerant, first, locate and repair any leaks and then weigh in the refrigerant charge into the unit. To calculate the total refriger-

ant charge:

 

 

 

Additional charge specified per

 

 

 

 

 

 

 

 

 

 

 

 

Amount specified on

Adjust amount. for variation in line set

match indoor air handler or coil

Total Charge

 

nameplate

length listed on line set length table below.

listed in table 3.

 

 

 

 

 

 

+

 

 

+

 

 

=

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refrigerant Charge per Line Set Length

LIQUID LINE SET DIAMETER

3/8" (9.5 MM)

OUNCES PER 5 FEET (GRAMS PER 1.5 METERS) ADJUST FROM 15 FEET (4.6 METERS) LINE SET*

3 OUNCE PER 5’ (85 GRAMS PER 1.5 M)

*If line length is greater than 15 feet (4.6 meters), add this amount. If line length is less than 15 feet (4.6 meters), subtract this amount.

NOTE

emperature

of the liquid line or when pressure drop is equal to or greater than 20 psig.

 

NOTE . Go to actual nameplate on outdoor unit for charge information.

Figure 18. Using HFC−410A Weigh In Method

OUTDOOR UNIT

DISTRIBUTOR

 

 

NOTE − ARROWS INDICATE DIRECTION

 

 

 

 

OF REFRIGERANT FLOW

 

REVERSING VALVE

CHECK / EXPANSION

 

 

VALVE

 

 

 

OUTDOOR

 

 

COIL

 

BI−FLOW FILTER / DRIER

 

INDOOR UNIT

 

 

 

MUFFLER

 

 

TRUE SUCTION

VAPOR

 

PORT

 

SERVICE

 

 

 

 

PORT

LIQUID LINE

COMPRESSOR

 

SERVICE PORT

 

 

 

 

 

CHECK / EXPANSION VALVE

INDOOR

NOTE − Use gauge ports on vapor line valve and liquid valve for evacuating refrigerant lines andCOIL indoor coil. Use true suction port to measure vapor pressure during charging.

Figure 19. Heat Pump Cooling Cycle

Page 23

XP13 SERIES

Page 22 Page 24
Image 23
Page 22 Page 24
Contents General Table of ContentsShipping and Packing List TOP View Unit Dimensions − Inches mmModel Number Identification 13 −036 − 230 −08 Side ViewControl Panel PLUMBING, Switches Sensor ComponentsTypical Unit Parts Arrangement Caps and Fasteners Torque Requirements Operating Gauge Set and Service ValvesOperating Service Valves Using Manifold Gauge SETReinstall Stem Cap Operating Angle−Type Service ValveOperating Ball−Type Service Valve Method Method 2 Limitations Recovering Refrigerant from Existing System1DISCONNECT Power 3RECOVERING RefrigerantNew Outdoor Unit Placement Placement, Slab Mounting and Stabilizing Unit Detail a Outside Unit PlacementLouvered Panel Removal Removing and Installing PanelsLouvered Panel Installation Adding Polyol Ester OIL Requirements NEW or Replacement Line SET InstallationUsing Existing Line SET Line Set RequirementsRefrigerant Line SET Alling Horizontal Runs Refrigerant Line SET From Vertical to HorizontalBrazing Connections 2CAP and Core Removal 1CUT and DeburPreparation for Next Step Wrap Service ValvesFlow Nitrogen 6BRAZE Line SET3FLUSHING Line SET 2CONNECT Gauges and Equipment for Flushing ProcedureEqualizer Line Installation Installing New Indoor Metering DeviceIndoor Expansion Valve Installation Sensing Bulb InstallationTest for Leaks Leak Test Line Set and Indoor CoilConnect Gauge SET 2EVACUATE the System Evacuating Line Set and Indoor Coil24VAC Transformer Size Circuit and Install Disconnect2INSTALL Thermostat ElectricalTypical Unit Wiring Diagram Unit START−UP Unit Start−UpConnections for Optimizing System Charge Leak CHECK, Repair and EvacuateConnect Manifold Gauge SET and WEIGH−IN Charge Calculating System Charge for Outdoor Unit Void of Charge Using HFC−410A Weigh In MethodCFM = Optimizing ProcedureAdjusting Indoor Airflow Optimizing System Refrigerant ChargeRefrigerant SATº LIQºSCº If subcooling value isNormal Operating Pressures − Liquid +10 and Vapor +5 Psig HFC−410A Temperature F − Pressure Psig Defrost Control CMC1 System OperationDefrost System OFF Indoor Coil MaintenanceDealer Indoor UnitXP13 Series Sequence of Operation Thermostat Start−Up and Performance ChecklistInstaller City Job Name Job no Date Job Location City

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.
Top Page Image Contents