The MRCOOL® Universal® Series 24K Air Handler is built to deliver powerful, reliable, and energy-efficient comfort all year long. Whether you’re facing freezing winters or scorching summers, this compact unit works hard to maintain your ideal indoor temperature while reducing overall energy consumption—helping to lower monthly utility bills.
Designed with flexibility in mind, the 24K Air Handler supports upflow, downflow, and horizontal installations. Its slim profile makes it easy to install in a variety of spaces, including attics, closets, and crawlspaces. For added convenience, it’s compatible with the MRCOOL® NO-VAC® Quick Connect® line set (sold separately), which eliminates the need for vacuuming or flaring—streamlining installation and saving time. To enhance performance during colder months, the unit also supports optional Universal® Series Heat Kits. These kits provide additional heating capacity and emergency backup heat when needed, boosting efficiency in extreme climates. At the heart of the air handler is an M-shaped evaporator coil with a large surface area that improves airflow and maximizes heat exchange. Made from 100% aluminum, the coil is corrosion-resistant for long-lasting durability. Despite its powerful performance, the unit operates at whisper-quiet sound levels, ensuring comfort without disruption.
Backed by a 10-year parts warranty and a 2-year limited labor warranty, the MRCOOL® Universal® 24K Air Handler is a smart, dependable choice for homeowners looking to upgrade to efficient, long-lasting HVAC technology.
| Net Dimensions (In) | 21.5 D x 49.72 H x14.49 W |
| Net Weight (Lbs) | 123.02 |
| CFM | 824/759.3/694.5/629.8/N\A |
| Tonnage | 2 |
| Voltage (V) | 115/208/230 |
| Phase | 1 |
| Cycle | 60 |
| Max Fuse Breaker (A) | 15 |
| Min Circuit Ampacity (A) | 5.5/3.5 |
| Mount Type | Multi-Position |
| Color | Dark Grey |
| Refrigerant Type | R-454B |
| Decibel Rating (Dba) | N\A/47.5/44/33/N\A |
| Decibel Rating Low (Dba) | 33 |
| Decibel Rating High (Dba) | 47.5 |
| Number Of Speeds | 4 |
| Max Lineset Length (Ft) | 164 |
| Liquid Line Size | 8-Mar |
| Suction Line Size | 4-Mar |
| Filter Type | Replaceable |
| Filter Size | 12 x 20 x 1 |
| Metering Device | EXV |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | Yes |
| Auxiliary Heater Sizes | 5 KW / 8 KW / 10 KW / 15 KW |
| Ul Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Base Warranty | 10 Year Parts |
| Base Parts Warranty | 10 Years |
| Base Labor Warranty | 2 Year |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| Gross Depth (In) | 31.1 |
| Gross Height (In) | 17.52 |
| Gross Width (In) | 52.95 |
| Gross Weight (Lbs) | 154.76 |
Here is my absolutely fantastic, excellent review for the business Home Outlet Direct. After looking for months, I found this business. They were kind. This is a great company to buy from albeit not always cheap but good prices overall. However, I find all the charges for this nuts as the damn thing don’t work at all.
My review of the MrCool 24k btu ECM air handler:
I was and am very frustrated with this purchase. It took me months to get this in. I went through 3 line sets. I finally got all lines in right no leaks. All electrical correct. I plugged in their Wi-Fi thermostat and all seemed great! I began registering the thermostat etc. ….then nothing. It shut down. Bricked. all of it shut off. Completely. Bricked . Now, all I have is the Goodman furnace I put in the previous year. MrCool products are not cool. Very expensive and they don’t work at all. Never buying these products again. Spent thousands altogether to run this and it doesn’t do anything. Never buy Mr Cool BS products!
I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.
Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!
Installed with ceiling cassettes... Quiet and keeping us cool so far !
Very good customer service will be buying from them again
