초록 ▼

A make-up air handler controls temperature, humidity and/or cleanliness of air. The make-up air handler includes a direct expansion chiller system. The direct expansion chiller may be integral to the make-up air handler or remote. A clean room facility uses the make-up air handler to supply air to a

A make-up air handler controls temperature, humidity and/or cleanliness of air. The make-up air handler includes a direct expansion chiller system. The direct expansion chiller may be integral to the make-up air handler or remote. A clean room facility uses the make-up air handler to supply air to a clean room. The make-up air handler includes a primary cooling coil and a direct expansion chiller system, and may include a humidifier and a filter. The direct expansion chiller system includes an air stream cooling coil and an air stream heating coil. The heating and cooling coils use a refrigeration fluid which is compressed and circulated by a compressor. Humidity is controlled by removing moisture which is condensed from the air stream by a primary cooling coil and the air stream cooling coil of the direct expansion chiller system. The energy removed by the air stream cooling coil is reintroduced to the air stream by the air stream heating coil. The process of removing moisture directly removes contamination. The process of lowering humidity causes contaminant particles to form which can be removed by a filter.

대표청구항 ▼

[ What is claimed is:] [1.] A direct expansion air handler for controlling a temperature of, and moisture in, air supplied at an outlet for use in a facility, the direct expansion air handler comprising:the outlet;a direct expansion chiller system for removal of moisture and reheat of the air to a f

[ What is claimed is:] [1.] A direct expansion air handler for controlling a temperature of, and moisture in, air supplied at an outlet for use in a facility, the direct expansion air handler comprising:the outlet;a direct expansion chiller system for removal of moisture and reheat of the air to a first temperature and humidity, the direct expansion chiller system includinga first cooler for cooling the air to a second temperature and for reducing the moisture in the air to a target moisture level; anda first heater coupled to, and downstream from, the first cooler for heating the air to a third temperature; and wherein:a refrigerant is circulated between the first cooler and the first heater; andthe direct expansion air handler adjusts a relative moisture level in the air to a level not higher than a level at which contamination in the air forms particles that are removable by a filter located downstream from the first cooler.