Service and Weigh In Refrigerant for Outdoor Units Delivered Void of Charge

The following procedures are only required if it has been determine that the new outdoor unit is void of charge. Skip to the next section if refrigerant charge is present.

LEAK CHECK, REPAIR AND EVACUATE

If the outdoor unit is void of refrigerant, clean the system using the procedure described below.

1.Leak check system using procedures provided on page 17. Repair any leaks discovered during leak test.

2.Evacuate the system using procedure provided in figure 13.

3.Use nitrogen to break the vacuum and install a new filter drier in the system.

4.Evacuate the system again using procedure in figure 13.

CONNECT MANIFOLD GAUGE SET AND WEIGH−IN CHARGE

After the evacuation procedure, reconnect the manifold gauge set as illustrated in figure 17.

NOTE − Temperature sensor illustrated in figure 17 is not required for initial system weigh in charging.

1.Close manifold gauge set valves and connect the gauge set as exampled in figure 17.

2.Check that fan rotates freely.

3.Inspect all factory− and field−installed wiring for loose connections.

4.Open the high side manifold gauge valve and weigh in liquid refrigerant. Use figure 18 to calculate the correct weigh−in charge.

5.Close manifold gauge valves.

6.Monitor the system to determine the amount of moisture remaining in the oil. It may be necessary to replace the bi−flow filter drier several times to achieve the required dryness level. If system dryness is not verified, the compressor will fail in the future.

7.Continue to Optimizing System Refrigerant Charge on page 24 to optimize the system charge using subcooling method.

MANIFOLD GAUGE SET

GAUGE SET

NOTE Refrigerant

LOW

HIGH

CONNECTIONS FOR OPTIMIZING SYSTEM CHARGE

tank should be turned right−side−up to deliver vapor during charge optimizing procedure.

B

 

HFC−410A

REFRIGERANT

 

TANK

A

CHARGE IN

LIQUID PHASE

 

DIGITAL SCALE

TO LIQUID

LINE SERVICEVALVE C

TRUE SUCTION PORT

CONNECTION

TEMPERATURE

SENSOR

(LIQUID LINE)

D

AClose manifold gauge set valves and connect the center hose to a cylinder of HFC−410A. Set for liquid phase charging.

BConnect the manifold gauge set’s low pressure side to the true suction port.

CConnect the manifold gauge set’s high pressure side to the liquid line service port.

DPosition temperature sensor on liquid line near liquid line service port (use only for subcooling method).

NOTE

the line set is not shown connected to service valves.

Figure 17. Typical Gauge Set Connections for Initial Weight−in Charge or Optimizing System Charge

506728−01

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Lennox International Inc 06/11 50672801 Leak CHECK, Repair and Evacuate, Connect Manifold Gauge SET and WEIGH−IN Charge
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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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