Steven Levy Enterprises buys and sells new, unused, and used surplus industrial refrigeration & HVAC equipment. Browse our available inventory of Industrial refrigeration and HVAC equipment. Industrial refrigeration systems are used in the refrigeration process to remove heat from a given item. Industrial HVAC systems provide heating, cooling and ventilation for large buildings or structures. Tell us what surplus industrial refrigeration & HVAC equipment you have for sale or call us at 713-910-4337.