# US 12,000,620 B2 · Packaged water-cooled air turnover unit

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- Number: US 12,000,620 B2
- Document ID: US12000620B2
- Status: Granted
- Kind: B2
- Application number: 18/068,305
- Filed: 2022-12-19
- Published: 2023-04-20
- Granted: 2024-06-04
- Earliest claimed: 2018-06-06
- Assignees: MJC, Inc.
- Applicants: MJC, Inc.
- Inventors: Edward H. Metzger; William Harris; George Czyz; Sean Mocarski; Russell E. Smith; Hue Nguyen; Damon Rundell
- Web page: https://patentgrep.com/patent/US12000620B2

## CPC

- F24F 5/001: {Compression cycle type}
- F25B 5/02: arranged in parallel
- F24F 13/20: Casings or covers
- F24F 13/30: Arrangement or mounting of heat-exchangers
- F25B 39/04: Condensers
- F24F 2221/34: Heater, e.g. gas burner, electric air heater
- F25B 2339/047: Water-cooled condensers
- F25B 2400/075: with parallel compressors
- 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)
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

## Abstract

A packaged air turnover unit is described herein. The packaged air turnover comprises a compressor and condenser within a housing of the packaged air turnover unit. The packaged air turnover unit further includes one or more heat exchangers to cool air and one or more heaters to heat air, providing either cooling or heating to a space depending on the configuration of the unit.

## Claims

### Claim 1

An air turnover unit located within an interior space, the air turnover unit comprising:
a housing having an air intake for intaking air from the interior space and an air exhaust for exhausting the air into the interior space; the housing enclosing:
a heat exchanger configured to exchange heat from air moving around a coil of the heat exchanger to a refrigerant moving through the coil of the heat exchanger;
a fan configured to:
pull air into the housing through an air intake,
through the heat exchanger,
and out of the housing through an air exhaust;
a compressor configured to compress the refrigerant received from the heat exchanger;
a condenser configured to cool and condense the refrigerant received from the compressor; and
an expansion valve configured to reduce a temperature and pressure of the refrigerant received from the condenser;
a chilled water supply configured to supply chilled water to the condenser; and
a heater to heat the air exhausting into the interior space.

### Claim 2 (depends on 1)

The air turnover unit of claim 1, wherein the heater is a direct-fired heater.

### Claim 3 (depends on 1)

The air turnover unit of claim 1, wherein the heater is an indirect-fired heater.

### Claim 4 (depends on 1)

The air turnover unit of claim 1, further comprising a diffuser to direct air to the air exhaust.