THDC Series air-cooled condensing units and THHP Series defrost and frostless heat pumps are through-the-wall units. They are offered in capacity sizes of 1 1/2, 2, and 2 1/2 tons. The systems are designed for applications needing horizontal condenser air discharge or external static pressure capability. Features of the THDC include heat pump-duty rated compressors and extended-surface coils. Refrigerant pressure switches and an aluminum architectural grille are optional. The THHP unit features a scroll compressor, multispeed blower motor, stainless steel condensate/defrost pan, and electric box located on top of the unit. Both models have low-rpm blowers.
AeroSys Inc., 32 Thomas Johnson Dr., Frederick, MD 21701; 301-620-0002; 301-620-0685 (fax); www.aerosysinc.com.