Therma-Stor Heat Recovery Water Heater System (HRS). Model: TS-II-120-1. S/N: C403487. Part: 4020166. Specifications: Maybe used with Potable Water, Max Conn Water Pressure 150 Pisg (1034 Kpa), Max Operating Refrigerant Pressure 450 Psig (3102 Kpa), Max Heat Exchange Rating 80,000 BTU/HR (23.5 Kw), Cap 114 Gal (432 Liters), For Use wHP62, HP80, HP81, MP39, 12,R22,R134A, R502 or R507 only. Made in USA. Used for a very short test run on a research project. This unit utilizes the hot gas discharge of a freon system to heat potable water. Compatible with loads up to 60 tons depending on refrigerant type and conditions. Can be run in series with additional HRS units. (ACN25)