Lennox 26Z70 Thermal Expansion Valve

The Lennox 26Z70 is a thermal expansion valve supplied by Cedar’s HVAC Supply, a Miami, Florida based HVAC parts distributor serving contractors and homeowners nationwide.

Lennox 26Z70 specifications

What the Lennox 26Z70 thermal expansion valve does

A thermal expansion valve meters liquid refrigerant into the evaporator and holds superheat steady as load changes. It replaces a fixed orifice with active control, so the system keeps capacity and efficiency across a wide range of conditions. A restricted or failed TXV shows up as poor cooling, frost on the coil, or wildly swinging superheat.

Fitment and cross-reference

Match the valve to the system tonnage and the refrigerant. R-454B valves are not interchangeable with R-410A or R-22 valves, so check the data plate first. Also confirm the connection sizes and mount the sensing bulb tightly on a clean, horizontal suction line.

Also, compare it against the rest of our HVAC valves, or browse all Lennox parts. You can review manufacturer documentation on the official Lennox site.

Frequently asked questions

What is the Lennox 26Z70?

Lennox builds this thermal expansion valve under part number 26Z70.

How much does the Lennox 26Z70 cost?

The Lennox 26Z70 is $113.00 at Cedar’s HVAC Supply. We price against the major online HVAC suppliers. Therefore, if you find it cheaper elsewhere, tell us and we will take a look.

How do I order the 26Z70?

You can add the 26Z70 to your cart and check out online, or call our team and we will place the order for you. However, if you need several units or contractor pricing, then contact us first and we will put together a quote.

Will the 26Z70 fit my system?

First, check the part number on your equipment’s data plate against 26Z70. If it matches, then you have the right part. Otherwise, send us the model and serial number, and we will confirm the correct part before you buy.

Can I return the 26Z70?

Yes. Cedar’s HVAC Supply accepts returns for 30 days on this part, as long as it stays uninstalled and in the original box. For example, a part that turns out to be the wrong fit qualifies. In addition, you can read the full terms on our refund policy page.

Why buy from Cedar’s HVAC Supply

• Discount pricing on HVAC parts, tools and complete systems
• Nationwide shipping
• 30-day returns
• Questions? Email us at [email protected], email [email protected], or visit customer support