36"W x 19"H 2.5-Ton Thru-Wall R-454B Condenser Replaces Aerosys TTWC-R30P21, TTWC-R30P21LX, VCU-C-030-1-S, VCU-C-030-1-X

Aerosys has permanently closed. This is the replacement. It is custom built to fit the same 36" W x 19" H sleeve you already have, on the same 208-230V single-phase service, charged with R-454B rather than the phased-out R-454B. Lead time is 14 to 21 days, built to order. Not sure which model you are replacing? The Aerosys replacement cross-reference lists every discontinued model and what it maps to.

A 2.5-ton thru-wall condensing unit built as a direct drop-in replacement for the Aerosys TTWC-R30P21 (including the R30P21LX variant) and AboveAir VCU-C-030-1-S / VCU-C-030-1-X. If your building has any of those units installed and one just quit, this is the fastest path back to cooling: same 36" W x 19" H sleeve fit, same 208-230V/1Ph electrical, same R-454B refrigerant, same mounting pattern. No wall modifications. Straight swap.

At 2.5 tons / 30,000 BTU, this unit is sized for larger open spaces, combined living/dining layouts, lofts, corner units with heavy sun exposure, or small commercial spaces around 1,000 to 1,400 square feet. For a standard one-bedroom under 1,000 sqft, a 2.0-ton unit is usually the better fit; oversizing causes short-cycling, which wastes energy and leaves humidity behind. Our sizing guide walks through how to calculate the right tonnage for your specific space.

The cabinet is water-resistant for NYC rooftop and facade installation, and the unit ships with brass service valves, a 5-year compressor warranty, and a 2-year parts warranty. The 0.25 HP / 1500 RPM fan stays within the noise profile most co-op boards accept for residential facades. NYC approved for the standard 36" x 19" sleeve, meaning straight replacement work in an existing sleeve generally does not require new DOB permits. That matters when your building board is already stretched thin and you are trying to get cooling restored before the summer rush.

We stock this unit as a practical alternative when name-brand Aerosys or AboveAir 2.5-ton inventory is backordered, which happens every spring in NYC. Same specs, same performance envelope, faster fulfillment. For building-wide pricing on 10+ units or to verify compatibility with your existing indoor air handler, call us at (385) 319-1559.