ACiQ 3 Ton 21" Width Vertical Evaporator Cased Coil







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Suggested Retail $689.00 Your Low Price Special Price $551.00
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ACiQ is proud to provide a high-quality system, including all necessary components. The END4X36L21A vertical coil is an exceptional choice for various applications, ensuring the overall efficiency of the unit with its factory-integrated TXV kit for enhanced energy optimization.


  • 3-ton vertical coil
  • Works in both upflow and downflow applications
  • Compatible with both AC-only and heat pump condensers
  • Factory-installed TXV kit for enhanced energy optimization
  • Sturdy and compact design
3 Tons

The ACiQ END4X36L21A is designed to provide up to 3 tons of heating and cooling capacity. It can be easily installed with either an AC-only condenser or a heat pump condenser, making it ideal for a wide range of applications. In certain packages, the coil may be larger than its paired condenser, resulting in increased overall efficiency for the entire unit. However, it's important to note that the coil should never be smaller than its paired condenser. Please note that this item requires a compatible condenser and blower or furnace, which are available at an additional cost and cannot operate independently.


ACiQ offers a 10-year parts warranty on their coils when installed in compliance with your state and local codes, and when paired with a certified system matchup. To obtain the full length of this warranty, it is necessary to register the entire unit through the manufacturer.

Product Specifications

More Information
ACiQ 3 Ton 21" Width Vertical Evaporator Cased Coil

Carrier Equivalent: CNPVP3621ALA

Tempstar Equivalent: END4X36L21A

Bryant Equivalent: CNPVP3621ALA

ConfigurationUpflow / Downflow
Liquid Line3/8"
Suction Line3/4"
Tonnage3 Ton
CertificationUL Listed
Warranty10 Years Parts Warranty with Online Registration
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING


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Questions and Answers

Customer Questions
Who makes ACiQ?
ACiQ air conditioning systems, standard heat pumps, and gas furnaces are manufactured by the largest HVAC manufacturer in America, who also happens to be the seller of the nation’s #1 brand. However, because our prices are SO LOW, they will not allow us to mention their name! They must protect their current market share where typical home systems retail between $15,000 to $25,000 for the identical equipment that we let you buy direct for under $3,000. We offer homeowners and contractors the highest quality and best warranty HVAC systems in the industry at the absolute lowest price. With our industry-leading, high-tech ACiQ equipment, your home and your savings just got a whole lot smarter!
What happens if this breaks down? gives you lifetime tech support. Many common problems can be solved with a phone call to us. is an authorized dealer of ACiQ, therefore equipment we sell carries the full manufacturer's warranty. The warranty applies to all parts. You have to register the products online in order to extend the warranty to the full 10 years, otherwise the term is 5 years. If a part fails under warranty, you will not pay anything for the replacement part. Should a part fail under warranty, the first step is to have a professional confirm what part needs to be replaced. Then, contact us at or by calling and asking for customer service.
What happens if it arrives damaged?
If you are present during drop-off and you see obvious signs of damage or rough handling in transit - please ask the driver to wait while you inspect the equipment. If it is damaged badly enough that you believe it can not function, you have the right to refuse the damaged portion of the shipment. If you discover the damage after the driver has left, take photos of the damage and send them to Please refer to your order number in the email. This starts the process and one of our representatives will be in touch with you promptly.
How can I find an installer?
It’s easier than you think – the key is to find an independent contractor or small company as opposed to a larger HVAC service. A one or two person outfit will do the work more quickly and cheaply than a bigger company, too.,, and are websites are designed to help you connect with a professional in your area. You could also place a call to the last professional who did work on your home and see if they have any recommendations.
Should I order a new lineset?
Our top recommendation – protect your investment by replacing your lineset when you replace your air conditioning. Leftover oil and or contaminants in the old lineset can enter your new system and reduce the lifespan. If, on the other hand, you wish to avoid replacing the lineset, we do carry flush kits to clean out incompatible oils and contaminants.
What's the warranty?
ACiQ’s 10 year Warranty (online registration required) is one of the top warranties available today.  Many of the higher-SEER units have even higher warranties and some of the higher efficient furnaces have longer heat exchanger warranties.
I'm looking to replace my Carrier unit and this ACiQ unit seems to have about the same specs - are they the same product?
ACiQ is made by the same company as Carrier as well as brands like Bryant, TempStar and ArcoAire. Many of the internal components can be cross referenced for shared parts. So, yes, apart from the name on the badge – very similar if not identical.
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