
AEROSYS TTWC-R24P21 -2.0 Ton - Condenser - 36H x 19W
$11,076
As low as $923/mo with Affirm or Klarna
Most NYC apartments need a 2.0-ton condenser for the main living area, and the Aerosys TTWC-R24P21 is the standard-line unit that gets the job done without overcomplicating things. At 24,000 BTU, it's sized right for living rooms, large bedrooms, and combined spaces between 700 and 1,000 square feet -- which covers a huge percentage of the primary rooms in New York co-ops and condos.
The R24P21 is Aerosys's standard through-wall condenser at this tonnage. It shares the same chassis and compressor platform as the LX Series model (the R24P21LX), but uses standard-duty contactors and fan motor components. That's not a knock on the unit -- these are proven parts that hold up well in normal residential use. The question is really about how hard the unit will work. In a building lobby or a south-facing penthouse living room that runs AC ten months a year, you probably want the LX. For a typical apartment living room with reasonable summer use, the standard model is the smart buy at a lower price.
Like all Aerosys TTWC condensers, this is one half of a through-wall split system. The condenser goes in your existing 36\" W x 19\" H wall sleeve on the building exterior, and a separate indoor air handler mounts on the apartment side. You connect the two with refrigerant lines through the wall. The advantage over a PTAC is real -- better cooling performance, dramatically less noise inside the apartment, and a longer equipment lifespan because the components aren't crammed into one overheated box. We've written up the full comparison in our PTAC vs. through-wall guide if your building is evaluating options.
For the install: 208-230V/60Hz/1Ph, R-410A refrigerant, fits the standard 36\" x 19\" NYC wall sleeve with no modifications needed. Made in the USA. If you're planning a bulk replacement for multiple units in a building, give us a call -- we can help you figure out which apartments need 1.5 versus 2.0 tons based on layout and exposure. Or start with our through-wall sizing guide for a quick self-assessment.
Faster Availability
Facing a long Aerosys lead time? Get an identical custom unit in 2–3 weeks
Due to high demand, we now custom-build National Comfort Products (NCP) units to match Aerosys systems. Each unit is built to a 36″ × 19″ footprint, with custom grilles and wall sleeves available as needed — a configuration we’ve delivered for hundreds of New York City customers. These custom NCP units ship in approximately 2–3 weeks, compared with Aerosys systems, which currently aren’t available for delivery until approximately December 2026.
Learn about custom NCP unitsSpecifications
| Specification | Value |
|---|---|
| Model | TTWC-R24P21 |
| Capacity | 2.0 Ton |
| BTU | 24,000 |
| Voltage | 208-230V/60Hz/1Ph |
| Refrigerant | R-410A |
| Dimensions | 36" H x 19" W |
| Type | Thru-Wall Condensing Unit |
| Configuration | Split System |