
614045-05 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $190.06 | Condition is New, LENNOX 13Y20 EXPANSION VLV ASSY 4 Ton 328157, FREE SHIPPING | 98.7% |
![]() | $199.99 | Condition is New, LENNOX 13Y20 614045-05 EXPANSION VLV ASSY 4, FREE SHIPPING | ![]() |
![]() | $211.95 | Top Pick! Condition is New, 13Y20 Lennox 4 Ton R410 Txv Valve Outdoor OEM 13Y20, shipping cost = $11.95 | 99.7% |

The Lennox 614045-05 Expansion Valve is a crucial component of refrigeration systems, specifically designed for use with Lennox residential and light commercial air conditioning and heating units with the model number starting with "13Y20". This particular expansion valve is part of the 6100 series, which is known for its durability and reliable performance.
The 614045-05 Expansion Valve is a thermostatic expansion valve, which means it automatically regulates the amount of refrigerant flowing into the evaporator coil based on the temperature of the liquid refrigerant returning from the condenser. This ensures optimal system efficiency and temperature control. The valve is designed to maintain a consistent superheat, which is the difference in temperature between the vapor and liquid refrigerant, to provide consistent and reliable cooling or heating.
The valve body is made of brass, a durable and corrosion-resistant material, while the diaphragm is made of a high-quality elastomer material that ensures a long service life. The valve is also equipped with a sight glass, which allows for easy visual inspection of the refrigerant flow, making maintenance and troubleshooting more convenient.
The Lennox 614045-05 Expansion Valve is designed to meet or exceed the requirements of ASHRAE Standard 15, ensuring that it meets the highest standards for safety and performance. The valve is also compatible with R-22, R-134a, and R-410A refrigerants, making it a versatile option for different refrigeration systems.
Installing the Lennox 614045-05 Expansion Valve is a relatively straightforward process, but it is recommended to be performed by a qualified HVAC professional to ensure proper installation and system function. Proper installation and maintenance of this expansion valve are essential to ensure the efficient and reliable operation of your Lennox air conditioning or heating system.
A Detailed Analysis of Buying a Lennox 614045-05 Expansion Valve
The Lennox 614045-05 Expansion Valve, catalog number 13Y20, is a critical component of Lennox heating and cooling systems designed to regulate refrigerant flow for optimal system performance. In this analysis, we will discuss the pros and cons of purchasing this expansion valve to help you make an informed decision.
Pros:1. Superior Flow Control: The Lennox 614045-05 Expansion Valve offers precise flow control, ensuring that the right amount of refrigerant reaches the evaporator coil at all times. This results in efficient heating and cooling, ultimately saving energy and reducing utility bills.
2. Durable Construction: The valve is built with high-quality materials, ensuring durability and longevity. It can withstand the harsh operating conditions of HVAC systems, reducing the need for frequent repairs or replacements.
3. Easy Installation: The Lennox 614045-05 Expansion Valve can be installed quickly and easily, making it a convenient choice for DIY homeowners or professional HVAC technicians. Its straightforward design and clear instructions simplify the installation process.
Cons:1. Higher Cost: The Lennox 614045-05 Expansion Valve may be more expensive than some aftermarket alternatives. However, its superior performance and durability may justify the investment for those seeking top-tier heating and cooling system components.
2. May Require Professional Installation: While the valve can be installed by a competent DIYer, it may be necessary to hire a professional HVAC technician for installation to ensure proper functioning and avoid potential complications.
3. Limited Compatibility: The Lennox 614045-05 Expansion Valve is specifically designed for use with Lennox systems. It may not be compatible with other HVAC brands or models, which could limit its versatility for some customers.
Conclusion:The Lennox 614045-05 Expansion Valve offers several advantages, including precise flow control, durable construction, and easy installation. While it may have a higher cost compared to some alternatives and have limited compatibility, its superior performance and longevity make it an excellent investment for those using Lennox heating and cooling systems.
Recommendation:If you own a Lennox heating and cooling system and are in need of a new expansion valve, the Lennox 614045-05 Expansion Valve is an excellent choice. Its superior performance, durability, and easy installation make it a worthwhile investment for those seeking top-tier HVAC components. However, if you are using a different brand or model of HVAC system, it may be necessary to consider alternative expansion valve options that are compatible with your specific system.
Details:
614045-05 expansion valve assembly 4 ton, cat 13Y20. Item might not be in original packaging or have torn-damaged. Fully guaranteed. Some items may have slight cosmetic wear which is noted in the condition of part and can be seen pictures.
New - old stock inventory item comes as shown and only includes what is in the photos, please look over carefully prior to purchase.
specifications maxohvac:
- brand: Lennox
- mpn: 614045-05
- model: 13y20
- type: Expansion Valve
- unit type: Unit
- california prop 65 warning: Yes
offer maxohvac:
- options: ship-to-home
- sold #: 18
- started: august 3, 2025
- availability: in stock
- in stock #: 3
- prices: $190.06–$211.95
- item condition: New
- best offers: true
payments maxohvac:
- wallet: apple-pay
- credit card: diners-club
- other
returns maxohvac:
- method: money back
- paid by: seller
- policy: returns accepted
- time: 30 days
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
seller maxohvac:
- rating: 100.0%
- # reviews: 1744
- city: kansas city, missouri
shipping maxohvac:
- carrier: usps
- service: usps ground advantage
- class: standard
- transit: 4-9 days
- type: calculated
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