AEROSYS - 1.5 Ton - Condenser TTWC-R18P21 36W x 19H

The Aerosys TTWC-R18P21 is the entry point into through-wall split system cooling that actually works. At 1.5 tons and 18,000 BTU, this condenser is sized for NYC bedrooms, studios, and small living rooms -- anything up to about 700 square feet. It slides into your building's existing 36\" W x 19\" H wall sleeve, which is the standard opening you'll find in the vast majority of Manhattan, Brooklyn, and Queens co-ops and condos built from the mid-century onward.

Here's the thing about the standard Aerosys line versus the LX: the core engineering is identical. Same compressor platform, same refrigerant circuit design, same physical footprint. The difference is in the supporting components -- the LX gets upgraded contactors and fan motors rated for heavier commercial duty cycles. For a bedroom unit that runs a few hours a day during summer? The standard TTWC-R18P21 is a perfectly solid choice, and the lower price point reflects that. Save the LX upgrade for the living room unit that runs twelve hours a day from June through September.

This is a split system condenser only -- you'll need a compatible indoor air handler to complete the installation. That two-piece design is exactly what makes it better than the old PTAC it's probably replacing. The compressor stays outside where it belongs, so your apartment stays quiet. No more sleeping next to what sounds like a window unit from 1998. If your building is still running PTACs and you're weighing options, our PTAC vs. through-wall guide lays out why contractors are making the switch.

Installation specs: 208-230V/60Hz/1Ph (standard NYC residential electrical), R-410A refrigerant, 3/8\" x 3/4\" sweat connections. MCA 13, MOP 20 for your electrician. The unit weighs 185 lbs shipping and measures 19\" H x 36\" W x 18.5\" D. Manufactured in the USA. Use our sizing guide to confirm 1.5 tons is the right capacity for your room before ordering.