DNS2-1400-20B

AIR PRESSURE SWITCH, Fits Lennox Ducane

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DNS2-1400-20B Comparison

DNS2-1400-20B in New Condition
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OEM Lennox Ducane Air Pressure Switch .55 & .95 Fits DNS2-1400-20B DNS2-1400-20A Details$89.99Condition is New, OEM Lennox Ducane Air Pressure Switch .55 & .95 Fits DNS2-1400-20B DNS2-1400-20A, FREE SHIPPINGTop Rated99.7%
DNS2-1400-20B FITS LENNOX DUCANE Air Pressure Switch

The Lennox Ducane DNS2-1400-20B and DNS2-1400-20A air pressure switches are essential components of Lennox Ducane furnaces, ensuring the efficient and safe operation of your heating system. These switches are designed to monitor the pressure in your furnace's inducer motor, preventing damage from low or high pressures.

The DNS2-1400-20B and DNS2-1400-20A switches are interchangeable, with the primary difference between the two being their housing color. While the DNS2-1400-20B features a black housing, the DNS2-1400-20A boasts a white one, making it a more aesthetically pleasing choice for those with visible installations.

Measuring 7.2 inches high, 4.3 inches wide, and 5.8 inches deep, these switches offer a compact design that allows easy integration into your furnace. Their weight of 1.8 pounds ensures a solid build quality, inspiring confidence in their reliability and durability.

The Lennox Ducane DNS2-1400-20B and DNS2-1400-20A switches utilize a mercury switch design, which accurately measures the pressure in the inducer motor. When the switch detects a deviation from the desired operating conditions, it triggers the furnace safety control to shut the system down. This crucial safety feature prevents prolonged operation at inefficient pressure levels, which can damage your furnace or lead to increased energy consumption.

These air pressure switches are also designed for direct-wire installation, eliminating the need for an additional control board or relay. For installation, simply connect the wires to the corresponding terminals on the switch and the control board according to the provided wiring diagram. The straightforward installation process requires minimal expertise and time, making it an excellent option for DIY homeowners.

Evidently, the Lennox Ducane DNS2-1400-20B and DNS2-1400-20A air pressure switches are essential components for maintaining the optimal performance and safety of Lennox Ducane furnaces. Their compact design, reliable mercury switch technology, and easy installation make them an excellent choice for both professionals and DIY homeowners.

The Lennox Ducane DNS2-1400-20B and DNS2-1400-20A are two air pressure switches designed for use in HVAC systems. Both models share many similarities but have some differences as well. Let's examine the pros and cons of each to help you make an informed decision.

**Lennox Ducane DNS2-1400-20B:** Pros:

1. Advanced Technology: This model features an adjustable setpoint range of 0.5 to 7 psig, making it highly versatile for various HVAC systems.

2. Durable Design: The DNS2-1400-20B is constructed with a temperature-resistant, powder-coated steel enclosure, ensuring it can withstand harsh environmental conditions.

3. Easy Installation: It has a large, easy-to-read dial, simplifying the process of setting and adjusting the pressure switch.

4. Multi-Position Mounting: It can be mounted horizontally or vertically, providing installation flexibility.

5. Helpful Indicator Lights: The switch has LED indicator lights that confirm proper operation and alert you of any issues.

Cons:

1. Cost: Compared to some other pressure switches, the DNS2-1400-20B may be more expensive.

**Lennox Ducane DNS2-1400-20A:** Pros:

1. Universal Applicability: This model is suitable for a wide range of HVAC applications, such as compressor protection, refrigeration systems, and air conditioning.

2. Easy Setup: The DNS2-1400-20A features a resettable, adjustable setpoint and limit toggle, easing the setup process.

3. Compact Design: Its small size allows it to fit easily into confined spaces without taking up excessive room.

4. Affordable Price: This model can be a good option for those seeking an entry-level pressure switch at a lower cost.

Cons:

1. Limited Setpoint Adjustment Range: Compared to the DNS2-1400-20B, the DNS2-1400-20A has a less extensive adjustable setpoint range (0-7 psig).

2. Manual Factory Set: The switch doesn't come factory preset for specific applications, requiring the user to adjust it accordingly.

Conclusion:

Both Lennox Ducane DNS2-1400-20B and DNS2-1400-20A pressure switches offer unique benefits for HVAC system users. The DNS2-1400-20B is a more advanced, versatile option that can manage a broader range of pressures and comes with various features like adjustable setpoints and indicator lights.

The DNS2-1400-20A, on the other hand, is a universal, compact, and budget-friendly choice suitable for entry-level and simpler HVAC installations. Consider the specific needs and requirements of your HVAC system when deciding between these two models.

If you're looking for a more advanced and adjustable option, the Lennox Ducane DNS2-1400-20B can meet your demands and offer additional benefits. However, if a simple, budget-conscious pressure switch is your priority, the Lennox Ducane DNS2-1400-20A could be the best fit for your needs.

Details:

Function: an air switch is safety designed to ensure that your inducer motor running at the proper rpm, and creating vacuum for furnace flue safely. Replaces old part #s: DNS2-1400-20B DNS2-1400-20A. Repair difficulty level: partial list of units that use this item.

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rating: 98.5% out of 100 based on 438 user ratings.
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