# US 4,557,116 A · Swimming pool dehumidifier

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- Number: US 4,557,116 A
- Document ID: US4557116A
- Status: Granted
- Kind: A
- Application number: 06/127,444
- Filed: 1980-03-05
- Granted: 1985-12-10
- Earliest claimed: 1979-11-28
- Assignees: Dectron Inc.
- Inventors: Reinhold Kittler
- Web page: https://patentgrep.com/patent/US4557116A

## CPC

- F25B 29/003: {of the compression type system}
- F24F 3/153: with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
- F24F 5/0071: {adapted for use in covered swimming pools}
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

A dehumidifying system for use in a building housing a swimming pool. The system includes a refrigerant compressor, a dehumidifier coil for dehumidifying air within the building, an air cooled condenser for reheating the air previously cooled down in the dehumidifying coil as well as for heating the swimming pool enclosure and a water cooled condenser for heating the pool water. The heat developed in the system can be used to selectively heat the dehumidified air within the building and the water in the swimming pool. The water obtained during dehumidification of the air is collected and returned to the swimming pool.

## Claims

### Claim 1

A dehumidifying system for use in a building housing a swimming pool, the system comprising a refrigerant compressor, a pool water heater, an air heater, and a dehumidifying coil, means for directing refrigerant from the compressor in sequence to the pool water heater, the air heater, the dehumidifying coil, and back to the compressor; means for directing air in the building, in sequence, over the dehumidifying coil and then over the air heater, and means for circulating water from the swimming pool to the pool water heater and back to the swimming pool; said system further including means to selectively by-pass the air heater with refrigerant; means to selectively by-pass the pool water heater with pool water; means in the air directing means to selectively by-pass the dehumidifying coil with some of the air passing through the air directing means, and means for returning the moisture taken out of the air by the dehumidifying coil to the pool.

### Claim 2

A dehumidifying system for use in a building housing a swimming pool, the system comprising a refrigerant compressor, a pool water heater, an air heater, and a dehumidifying coil, means for directing refrigerant from the compressor in sequence to the pool water heater, the air heater, the dehumidifying coil, and back to the compressor; means for directing air in the building, in sequence, over the dehumidifying coil and then over the air heater, and means for circulating water from the swimming pool to the pool water heater and back to the swimming pool; said system further including means to selectively by-pass the air heater with refrigerant; means to selectively by-pass the pool water heater with pool water; means in the air directing means to selectively by-pass the dehumidifying coil with some of the air passing through the air directing means; means adjacent the pool water heater for extracting excess heat from the refrigerant, and means outside the building for dissipating the excess heat.